2.0mg Cyanocobalamin ...100.0μg Preparation of Wolfe’s Vitamin Solution : Add components to distilled/deionized water and bring volume to 1.0L.. 0.19g Preparation of Ferric Quinate Solut
Trang 1Magnetospirillum Medium 995
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Yersinia enterocolitica from foods.
Magnetic Spirillum Growth Medium, Revised
(MSGM, Revised)
Compositionper liter:
Agar 1.3g
KH2PO4 0.68g
Tartaric acid 0.37g
Succinic acid 0.37g
NaNO3 0.12g
Sodium acetate 0.05g
Ascorbic acid 0.035g
Wolfe’s vitamin solution 10.0mL
Wolfe’s mineral solution 5.0mL
Ferric quinate solution 2.0mL
Resazurin (0.1% solution) 0.45mL
pH 6.75 ± 0.2 at 25°C
Wolfe’s Vitamin Solution:
Composition per liter:
Pyridoxine·HCl 10.0mg
Thiamine·HCl 5.0mg
Riboflavin 5.0mg
Nicotinic acid 5.0mg
Calcium pantothenate 5.0mg
p-Aminobenzoic acid 5.0mg
Thioctic acid 5.0mg
Biotin 2.0mg
Folic acid 2.0mg
Cyanocobalamin 100.0μg
Preparation of Wolfe’s Vitamin Solution : Add components to
distilled/deionized water and bring volume to 1.0L Mix thoroughly
Wolfe’s Mineral Solution:
Compositionper liter:
MgSO4·7H2O 3.0g
Nitriloacetic acid 1.5g
NaCl 1.0g
MnSO4·H2O 0.5g
FeSO4·7H2O 0.1g
CoCl2·6H2O 0.1g
CaCl2 0.1g
ZnSO4·7H2O 0.1g
CuSO4·5H2O 0.01g
AlK(SO4)2·12H2O 0.01g
H3BO3 0.01g
Na2MoO4·2H2O 0.01g
Preparation of Wolfe’s Mineral Solution: Add nitrilotriacetic
acid to 500.0mL of distilled/deionized water Dissolve by adjusting pH
to 6.5 with KOH Add remaining components Add distilled/deionized
water to 1.0L
Ferric Quinate Solution:
Compositionper 100.0mL:
FeCl3 0.27g
Quinic acid 0.19g
Preparation of Ferric Quinate Solution: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Autoclave for 15 min at 15 psi pressure–121°C
Preparation of Medium: To 1.0L of distilled/deionized water add components in the following order: Wolfe’s vitamin solution, Wolfe’s min-eral solution, ferric quinate solution, resazurin, KH2PO4, NaNO3, ascorbic acid, tartaric acid, succinic acid, sodium acetate, and agar Mix thoroughly after each addition Adjust pH to 6.75 with NaOH Autoclave for 15 min
at 15 psi pressure–121°C Aseptically distribute into sterile screw-capped tubes Fill tubes to capacity with medium Use a heavy inoculum in each tube and do not introduce a headspace of air Screw down caps tightly
Use: For the cultivation and maintenance of Aquaspirillum magnetot-acticum.
Magnetospirillum Medium
(DSMZ Medium 380)
Compositionper liter:
KH2PO4 0.68g
L(+)-Tartaric acid 0.37g Succinic acid 0.37g NaNO3 0.12g Na-thioglycolate 0.05g Na-acetate 0.05g Resazurin 0.5mg Vitamin solution 10.0mL Trace elements solution 5.0mL Ferric quinate solution 2.0mL
pH 6.8 ± 0.2 at 25°C
Trace Elements Solution:
Compositionper liter:
MgSO4·7H2O 3.0g Nitrilotriacetic acid 1.5g NaCl 1.0g MnSO4·2H2O 0.5g CoSO4·7H2O 0.18g ZnSO4·7H2O 0.18g CaCl2·2H2O 0.1g FeSO4·7H2O 0.1g NiCl2·6H2O 0.025g KAl(SO4)2·12H2O 0.02g
H3BO3 0.01g
Na2MoO4·4H2O 0.01g CuSO4·5H2O 0.01g
Na2SeO3·5H2O 0.3mg
Preparation of Trace Elements Solution: Add nitrilotriacetic acid to 500.0mL of distilled/deionized water Dissolve by adjusting pH
to 6.5 with KOH Add remaining components Add distilled/deionized water to 1.0L Mix thoroughly
Vitamin Solution:
Compositionper liter:
Pyridoxine-HCl 10.0mg Thiamine-HCl·2H2O 5.0mg Riboflavin 5.0mg Nicotinic acid 5.0mg
D-Ca-pantothenate 5.0mg
p-Aminobenzoic acid 5.0mg
Lipoic acid 5.0mg Biotin 2.0mg Folic acid 2.0mg Vitamin B12 0.1mg
Trang 2996 Magnetospirillum 2 Medium
Preparation of Vitamin Solution: Add components to distilled/
deionized water and bring volume to 1.0L Mix thoroughly Sparge
with 80% H2 + 20% CO2 Filter sterilize
Ferric Quinate Solution:
Composition per 100.0mL:
FeCl3·6H2O 0.45g
Quinic acid 0.19g
Preparation of Ferric Quinate Solution: Add components to
distilled/deionized water and bring volume to 100.0mL Sparge with
N2 Autoclave for 15 min at 15 psi pressure–121°C Cool to 25°C
Preparation of Medium: Add components, except vitamin
solu-tion and ferric quinate solusolu-tion, to distilled/deionized water and bring
volume to 988.0mL Purge medium with N2 gas for 10 min Mix
thor-oughly Autoclave for 15 min at 15 psi pressure–121°C Cool to 25°C
Aseptically and anerobically add 10.0mL vitamin solution and 2.0mL
ferric quinate solution Mix thoroughly Purge medium with N2 gas for
10 min Under the same atmosphere, anaerobically fill tubes to 1/3 of
their volume and seal Autoclave at 121°C for 15 min Before
inocula-tion, add sterile air (with hypodermic syringe through the rubber
clo-sure) to 1% O2 concentration in the gas phase
Use: For the cultivation of Magnetospirillum
magnetotacti-cum=Aquaspirillum magnetotacticum, and Magnetospirillum
gryph-iswaldense.
Magnetospirillum 2 Medium
Compositionper liter:
Sodium acetate 1.0g
K2HPO4 0.5g
Sodium thioglycolate 0.5g
NH4Cl 0.1g
Yeast extract 0.1g
Ferric citrate 20.0μg
pH 6.8 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Distribute into
screw-capped tubes in 5.0mL volumes Autoclave for 15 min at 15 psi
pres-sure–121°C Allow medium to stand upright at room temperature for
2 to 3 days before inoculation Do not shake
Use: For the cultivation and maintenance of Magnetospirillum
gryph-iswaldense.
Magnetospirillum Semi-solid Medium
(DSMZ Medium 380)
Compositionper liter:
Agar 1.3g
KH2PO4 0.68g
L(+)-Tartaric acid 0.37g
Succinic acid 0.37g
NaNO3 0.12g
Na-thioglycolate 0.05g
Na-acetate 0.05g
Resazurin 0.5mg
Vitamin solution 10.0mL
Trace elements solution 5.0mL
Ferric quinate solution 2.0mL
pH 6.8 ± 0.2 at 25°C
Trace Elements Solution:
Compositionper liter:
MgSO4·7H2O 3.0g Nitrilotriacetic acid 1.5g NaCl 1.0g MnSO4·2H2O 0.5g CoSO4·7H2O 0.18g ZnSO4·7H2O 0.18g CaCl2·2H2O 0.1g FeSO4·7H2O 0.1g NiCl2·6H2O 0.025g KAl(SO4)2·12H2O 0.02g
H3BO3 0.01g
Na2MoO4·4H2O 0.01g CuSO4·5H2O 0.01g
Na2SeO3·5H2O 0.3mg
Preparation of Trace Elements Solution: Add nitrilotriacetic acid to 500.0mL of distilled/deionized water Dissolve by adjusting pH
to 6.5 with KOH Add remaining components Add distilled/deionized water to 1.0L Mix thoroughly
Vitamin Solution:
Compositionper liter:
Pyridoxine-HCl 10.0mg Thiamine-HCl·2H2O 5.0mg Riboflavin 5.0mg Nicotinic acid 5.0mg
D-Ca-pantothenate 5.0mg
p-Aminobenzoic acid 5.0mg
Lipoic acid 5.0mg Biotin 2.0mg Folic acid 2.0mg Vitamin B12 0.1mg
Preparation of Vitamin Solution: Add components to distilled/ deionized water and bring volume to 1.0L Mix thoroughly Sparge with 80% H2 + 20% CO2 Filter sterilize
Ferric Quinate Solution:
Composition per 100.0mL:
FeCl3·6H2O 0.45g Quinic acid 0.19g
Preparation of Ferric Quinate Solution: Add components to distilled/deionized water and bring volume to 100.0mL Sparge with
N2 Autoclave for 15 min at 15 psi pressure–121°C Cool to 45°C
Preparation of Medium: Add components, except vitamin solu-tion and ferric quinate solusolu-tion, to distilled/deionized water and bring volume to 988.0mL Purge medium with N2 gas for 10 min Mix thor-oughly Autoclave for 15 min at 15 psi pressure–121°C Cool to 45°C Aseptically and anerobically add 10.0mL vitamin solution and 2.0mL ferric quinate solution Mix thoroughly Purge medium with N2 gas for
10 min Dispense 12mL of medium per 16 x 150mm anaerobe screw-cap tube under N2 gas Prior to inoculation, remove caps briefly under air, tighten the caps again, and wait several hours to establish oxygen gradients The medium should be slightly pink in color Strongly re-duced conditions will not support growth of the organism During growth O2 will be consumed, resazurin decolorized, and the pH in-creased Feed oxygen (by adding air) and succinic acid from sterile
0.05M solution (to maintain pH below 7.0) If higher densities of
mag-netic cell are wanted, ferric quinate also can be fed For transfer use cell material which has been concentrated at the glass wall of the culture vessel by means of a magnetic rod attached outside
Trang 3Maleate Medium for Pseudomonas fluorescens with Glucose and Phenol Red 997
Use: For the cultivation of Magnetospirillum magnetotacticum
(Aquaspirillum magnetotacticum) and Magnetospirillum
gryphiswald-ense.
Maintenance HiVeg Medium for B subtilis ATCC
6633
Compositionper liter:
Agar 15.0g
Plant peptone 6.0g
Plant hydrolysate 4.0g
Yeast extract 3.0g
Plant extract 1.5g
Glucose 1.0g
pH 7.2 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from
Hi-Media
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat while
stirring until boiling Autoclave for 15 min at 15 psi pressure–121°C
Pour into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation of Bacillus subtilis.
Maintenance of L Antigen in Neisseria
Compositionper liter:
Proteose peptone No 3 20.0g
Agar 15.0g
Na2HPO4 5.0g
NaCl 5.0g
Glucose 0.5g
Rabbit blood, defibrinated 100.0mL
pH 7.4–7.6 at 25°C
Preparation of Medium: Add components, except rabbit blood, to
distilled/deionized water and bring volume to 900.0mL Mix
thorough-ly Gently heat while stirring until boiling Autoclave for 20 min at 15
psi pressure–121°C Cool to 60°C Aseptically add 100.0mL of sterile,
defibrinated rabbit blood Maintain at 75°C while shaking for 30 min
Pour into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation and maintenance of Neisseria gonorrhoeae.
Maintenance SCY Medium
See: SCY Medium
Maintenance (SCY) HiVeg Medium
Compositionper liter:
Agar 10.0g
Sucrose 1.0g
Plant hydrolysate 0.91g
Yeast extract 0.25g
NaCl 0.05g
Papaic digest of soybean meal 0.03g
K2HPO4 0.02g
Thiamine 0.4mg
pH 7.3 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from
Hi-Media
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Filter sterilize
Use: For the cultivation and maintenance of iron and sulfur bacteria
Malachite Green Broth
Compositionper liter:
Peptone 15.0g Beef extract 9.0g Malachite Green 0.01mg
pH 7.3 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Autoclave for 15 min at 15 psi pressure–121°C
Use: For the cultivation of Pseudomonas aeruginosa
Maleate Medium for Pseudomonas fluorescens
Compositionper liter:
Agar 15.0g
K2HPO4 1.13g
NH4NO3 1.0g
KH2PO4 0.48g MgSO4·7H2O 0.2g Potassium maleate solution 8.61mL
pH 7.0 ± 0.2 at 25°C
Potassium Maleate Solution:
Compositionper liter:
Maleic acid 116.07g
KOH (10N solution) 200.0mL
Preparation of Potassium Maleate Solution: Add maleic acid
to distilled/deionized water and bring volume to 600.0mL Slowly add KOH solution (generates heat) Bring volume to 1.0L with distilled/de-ionized water Adjust pH to 7.0 Filter sterilize
Preparation of Medium: Add components, except potassium maleate solution, to distilled/deionized water and bring volume to 991.4mL Mix thoroughly Gently heat while stirring until boiling Au-toclave for 20 min at 15 psi pressure–121°C Cool to 50°C Aseptically add 8.61mL of the potassium maleate solution Mix thoroughly Pour into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation and maintenance of Pseudomonas fluorescens and Mycoplasma pneumoniae.
Maleate Medium for Pseudomonas fluorescens
with Glucose and Phenol Red
Compositionper liter:
Agar 15.0g Glucose 10.0g
K2HPO4 1.13g
NH4NO3 1.0g
KH2PO4 0.48g MgSO4·7H2O 0.2g Phenol Red 0.04g Potassium maleate solution 8.61mL
pH 7.0 ± 0.2 at 25°C
Potassium Maleate Solution:
Compositionper liter:
Maleic acid 116.07g
KOH (10N solution) 200.0mL
Preparation of Potassium Maleate Solution: Add maleic acid
to distilled/deionized water and bring volume to 600.0mL Slowly add KOH solution (generates heat) Bring volume to 1.0L with distilled/de-ionized water Adjust pH to 7.0 Filter sterilize
Trang 4998 Malonate Broth
Preparation of Medium: Add components, except potassium
maleate solution, to distilled/deionized water and bring volume to
991.4mL Mix thoroughly Gently heat while stirring until boiling
Au-toclave for 20 min at 15 psi pressure–121°C Cool to 50°C Aseptically
add 8.61mL of the potassium maleate solution Mix thoroughly Pour
into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation and maintenance of Pseudomonas fluorescens
and Mycoplasma pneumoniae.
Malonate Broth
Compositionper liter:
Sodium malonate 3.0g
NaCl 2.0g
(NH4)2SO4 2.0g
K2HPO4 0.6g
KH2PO4 0.4g
Bromthymol Blue 0.025g
pH 6.7 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD
Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Autoclave for 15 min at 15 psi pressure–121°C Avoid
intro-duction of carbon and nitrogen from other sources
Use: For the cultivation and differentiation of coliforms and other
enteric organisms, particularly Enterobacter and Escherichia, based on
their ability to utilize malonate as the sole carbon source and
ammo-nium sulfate as the sole nitrogen source Malonate-utilizing organisms
turn the medium blue
Malonate Broth, Ewing Modified
Compositionper liter:
Sodium malonate 3.0g
NaCl 2.0g
(NH4)2SO4 2.0g
Yeast extract 1.0g
Glucose 0.25g
K2HPO4 0.6g
KH2PO4 0.4g
Bromthymol Blue 0.025g
pH 6.7 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD
Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Autoclave for 15 min at 15 psi pressure–121°C
Use: For the cultivation and differentiation of coliforms and other
enteric organisms, particularly Enterobacter and Escherichia, based on
their ability to utilize malonate as a carbon source and ammonium
sul-fate as a nitrogen source The small amount of yeast extract and
glu-cose encourages the growth of some organisms that may be distressed
or fail to respond Malonate-utilizing organisms turn the medium blue
Malt Agar
Compositionper liter:
Malt extract 30.0g
Agar 15.0g
pH 5.5 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat while stirring until boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–118°C Do not overheat or agar will not harden Pour into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation of yeasts and molds
Malt Agar
Compositionper liter:
Agar 20.0g Malt extract 12.5g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat until boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of fungi
Malt Agar, 1/3 Strength (ATCC Medium 2365)
Compositionper liter:
Agar 15.0g Malt extract 10.0g
pH 5.5 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat while stirring until boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–118°C Do not overheat or agar will not harden Pour into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation of yeasts and molds
Malt Agar, Blakeslee
Compositionper liter:
Glucose 20.0g Malt extract 20.0g Agar 16.0g Mycological peptone 1.0g
pH 6.8 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of Acremonium chrysogenum, Agaricus bisporus, Agrocybe aegerita, Armillaria mellea, Aspergillus spe-cies, Aureobasidium pullulans, Basidiomycetes spespe-cies, Candida spespe-cies, Ceratocystis adiposa, Citeromyces matritensis, Cladosporium cucumeri-num, Cochliobolus miyaheanus, Colletotrichum destructivum, Colletotri-chum lindemuthianum, Cryptococcus albidus, numerous other Cryptococ-cus species, Debaryomyces polymorphus, Diaporthe magnusii, Diaporth-ephaseolorum, Drechslera spicifera, Fusarium graminearum, Geotri-chum lactis, other GeotriGeotri-chum species, Hanseniaspora uvarum, Hanse-niaspora valbyensis, Hansenula subpelliculosa, Humicola species, Kloeckera apiculata, Kloeckera corticis, Kluyveromyces lodderi, Kluyver-omyces marxianus, Metschnikowia pulcherrima, Monilinia fructigena,
Trang 5Malt Agar 4% with Lupine Stems 999
Myrothecium verrucaria, Myxozyma melibiosi, Nadsonia fulvescens,
Neu-rospora crassa, Octosporomyces octosporus, Pachysolen tannophilus,
Paecilomyces variotii, Penicillium aurantiogriseum, many other
Penicil-lium species, Pithoascus schumacheri, Rhizoctonia crocorum,
Rhizomu-cor miehei, Rhodosporidium toruloides, Rhodotorula glutinis,
Rhodoto-rula minuta, RhodotoRhodoto-rula rubra, Saccharomyces cerevisiae,
Saccharomy-ces exiguus, SaccharomySaccharomy-ces ludwigii, SaccharomySaccharomy-ces capsularis,
Saccha-romyces fibuligera, SchizosacchaSaccha-romyces pombe, Sporobolomyces
para-roseus, Sporobolomyces salmonicolor, Sporopachydermia lactativora,
Stachybotrys species, Talaromyces emersonii, Taphrina deformans,
Toru-laspora delbrueckii, Trichoderma harzianum, Trichoderma koningii,
Trichoderma longibrachiatum, Trichoderma reesei, Trichoderma viride,
Trichosporon beigelii, Wickerhamia fluorescens, Yarrowia lipolytica, and
Zygosaccharomyces veronae.
Malt Agar 1%
(MA1)
Compositionper liter:
Agar 15.0g
Malt extract 10.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Acrodontium griseum, Acrodontium simplex,
Acrophialophora fusispora, Acrothecium tenebrosum, Acrothecium
capsic, Agaricus bisporus, Chaetocladium jonesii, Chaetomium
globo-sum, Chaetomium cupreum, Chaetomium irregulare, Farlowiella
carmichaeliana, and many other filamentous fungi.
Malt Agar 2%
(MA2)
Compositionper liter:
Malt extract 20.0g
Agar 15.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Acrophialophora fusispora, Agaricus
augustus, Ceratocystis penicillata, Chaetocladium brefeldii, and many
other fungi
Malt Agar 4%
(MA4)
Compositionper liter:
Malt extract 40.0g
Agar 15.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Chaetomium globosum, Chaetomium
indi-cum, Chaetomium funicola, Chaetomium megalocarpum, Chaetomium
murorum, Chaetomium seminudum, Chaetomium pachypodioides,
Chaetomium perlucidum, Chaetomium quadrangulatum, Chaetomium
reflexum, Chaetomium subaffine, Chaetomium subspirilliferum,
Chaeto-mium succineum, ChaetoChaeto-mium luknowense, Daedalea quercina,
Mycosphaerella ligulicola, Polypaecilum pisce, and many other fungi
Malt Agar 8%
(MA8)
Compositionper liter:
Malt extract 80.0g Agar 15.0g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Moniliella pollinis.
Compositionper liter:
Malt extract 20.0g Glucose 20.0g Agar 15.0g CaCO3 5.0g Mycological peptone 1.0g
pH 7.2 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of Brettanomyces anomalus,
Brettanomyces bruxellensis, Brettanomyces claussenii, Brettanomyces lambicus, Dekkera bruxellensis, and Dekkera intermedia.
Malt Agar with 2% Malt
Compositionper liter:
Agar 20.0g Malt extract 20.0g
pH 6.5 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Adjust pH to 6.5 Gently heat and bring to boiling Distribute into tubes or flasks Auto-clave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes
or leave in tubes
Use: For the cultivation of a variety of yeasts and other fungi
Malt Agar 2% with Lupine Stems (MA2 with Lupine Stems)
Compositionper liter:
Malt extract 20.0g Agar 15.0g Lupine stems variable
Preparation of Medium: Add components, except lupine stems, to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring to boiling Distribute 6.0mL volumes into tubes Cut lupine stems into 8.0cm-long pieces Add 2–3 lupine stems per tube Autoclave for 15 min at 15 psi pressure–121°C Allow tubes to cool in a slanted position
Use: For the cultivation of Chaetomium bostrychodes.
Malt Agar 4% with Lupine Stems (MA4 with Lupine Stems)
Compositionper liter:
Malt extract 40.0g Agar 15.0g Lupine stems variable
Trang 61000 Malt Dextrose Peptone Agar
Preparation of Medium: Add components, except lupine stems, to
distilled/deionized water and bring volume to 1.0L Mix thoroughly
Gently heat and bring to boiling Distribute 6.0mL volumes into tubes
Cut lupine stems into 8.0cm-long pieces Add 2–3 lupine stems per
tube Autoclave for 15 min at 15 psi pressure–121°C Allow tubes to
cool in a slanted position
Use: For the cultivation of Chaetomium indicum and Chaetospermum
chaetosporum
Malt Dextrose Peptone Agar
(MDPA)
Compositionper liter:
Agar 25.0g
Malt extract 20.0g
Glucose 20.0g
Peptone 1.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Aspergillus aeneus, Aspergillus candidus,
Odontia uda, Oidiodendron chlamydosporicum, Oidiodendron cerealis,
Oidiodendron flavum, Oidiodendron griseum, Oidiodendron
perico-nioides, Oidiodendron tenuissimum, Penicillium spinulosum, and other
fungi
Malt Dextrose 40% Peptone Agar
(MDPA 40)
Compositionper liter:
Glucose 400.0g
Agar 25.0g
Malt extract 20.0g
Peptone 1.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Aspergillus penicilloides
Malt 4% Dextrose Peptone Yeast Agar
(MDPYA4)
Compositionper liter:
Malt extract 40.0g
Agar 20.0g
Glucose 20.0g
Peptone 1.0g
Yeast extract 1.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Candida glabrata, Candida haemulonii,
Can-dida lactis-condensi, CanCan-dida magnoliae, CanCan-dida nemodendra,
Met-schnikowia pulcherrima, MetMet-schnikowia reukaufii, Phoma glomerata,
Saccharomyces exiguus, and Trigonopsis variabilis
Malt 4% Dextrose Yeast Agar
(MDYA4)
Compositionper liter:
Malt extract 40.0g Agar 20.0g Glucose 20.0g Yeast extract 1.0g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Torulaspora delbrueckii
Malt Extract Agar
Compositionper liter:
Malt extract 30.0g Agar 15.0g Peptone 5.0g
pH 7.0 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 20 min at 10 psi pressure–115°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Xanthomonas species.
Malt Extract Agar (MEA)
Compositionper liter:
Agar 20.0g Glucose 20.0g Malt extract 20.0g Peptone 1.0g
pH 5.5 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the isolation, cultivation, and identification of heat-resistant filamentous fungi (molds) from foods
Malt Extract Agar
Composition per liter:
Malt extract 30.0g Agar 15.0g Mycological peptone 5.0g
pH 5.4 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from Oxoid Unipath
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat while stirring until boiling Distribute into tubes or flasks Autoclave for 10 min at 15 psi pressure–115°C Do not overheat or agar will not harden
If a lower pH (3.5) is desired, cool medium to 55°C and aseptically add 100.0mL of sterile lactic acid Pour into sterile Petri dishes or distribute into sterile tubes
Trang 7Malt Extract Agar, Half Strength 1001
Use: For the detection, isolation, and enumeration of yeasts and
molds The addition of lactic acid suppresses bacterial growth
Malt Extract Agar
Composition per liter:
Malt extract 30.0g
Agar 20.0g
Chlortetracycline solution 10.0mL
pH 5.5 ± 0.2 at 25°C
Chlortetracycline Solution:
Compositionper 10.0mL:
Chlortetracycline 0.04mg
Preparation of Chlortetracycline Solution: Add
chlortetracy-cline to distilled/deionized water and bring volume to 10.0mL Mix
thoroughly Filter sterilize
Preparation of Medium: Add components, except
chlortetracy-cline solution, to distilled/deionized water and bring volume to
990.0mL Mix thoroughly Gently heat and bring to boiling Autoclave
for 15 min at 15 psi pressure–121°C Cool to 45°–50°C Aseptically
add sterile chlortetracycline solution Mix thoroughly Pour into sterile
Petri dishes in 20.0mL volumes
Use: For the cultivation of yeasts and filamentous fungi (molds) from
cosmetics
Malt Extract Agar
Compositionper liter:
Malt extract 20.0g
Agar 15.0g
Peptone 5.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of Candida melibiosica,
Cryptococcus curvatus, Kluyveromyces species, Metschnikowia
hawaiiensis, Rhodosporidium paludigenum, Saccharomyces
cerevi-siae, Saccharomycodes ludwigii, Stephanoascus species, and
Trichos-poron nigrescens
Malt Extract Agar (ATCC Medium 109)
Composition per liter:
Agar 15.0g
Maltose 12.75g
Dextrin 2.75g
Glycerol 2.35g
Pancreatic digest of gelatin 0.78g
pH 4.6 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD
Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat while
stirring until boiling Distribute into tubes or flasks Autoclave for 15
min at 15 psi pressure–118°C Do not overheat or agar will not harden
Pour into sterile Petri dishes or distribute into sterile tubes
Use: For the cultivation and maintenance of yeasts, molds, and
Fla-vobacterium lucecoloratum.
Malt Extract Agar (MEA)
Compositionper liter:
Glucose 20.0g Malt extract 20.0g Agar 15.0g Peptone 1.0g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Arthrinium phaeospermum, Aspergillus fumigatus, Aspergillus clavatus, Penicillium verruculosum, and Peni-cillium spinulosum
Malt Extract Agar
(BAM M93) Compositionper liter:
Malt extract 30.0g Agar 20.0g
pH 5.5 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use : For the isolation, cultivation, and identification of heat-resistant
filamentous fungi (molds) from foods
Malt Extract Agar, Blakeslee’s
Compositionper liter:
Malt extract 20.0g Glucose 20.0g Agar 20.0g Peptone 1.0g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of a variety of yeasts,
includ-ing Candida versatilis, Cryptococcus elinovii, Kluyveromyces marxi-anus, Pichia species, Reniforma strues, Rhodotorula mucilaginosa, Saccharomyces cerevisiae, Saccharomycopsis fibuligera, Sporobolo-myces roseus, Trichosporon nigrescens, Yarrowia lipolytica, Zygosac-charomyces rouxii, and numerous filamentous fungi
Malt Extract Agar, Half Strength (ATCC Medium 2418)
Compositionper liter:
Agar 15.0g Malt extract 10.0g Peptone 2.5g
pH 5.5 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat while stirring until boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–118°C Do not overheat or agar will not harden Pour into sterile Petri dishes or distribute into sterile tubes
Trang 81002 Malt Extract Agar for Yeasts and Molds
Use: For the cultivation of yeasts and molds
Malt Extract Agar for Yeasts and Molds
(MEAYM) (BAM M182)
Compositionper liter:
Agar 20.0g
Glucose 20.0g
Malt extract 20.0g
Peptone 1.0g
pH 5.4 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use : For the isolation, cultivation, and identification of heat-resistant
filamentous fungi (molds) from foods Recommended for
identifica-tion of Aspergillus spp and Penicillium spp
Malt Extract Broth
Composition per liter:
Malt extract 6.0g
Glucose 6.0g
Maltose 1.8g
Yeast extract 1.2g
pH 4.7 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD
Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Autoclave for 15 min at 15 psi pressure–121°C Do not
over-heat—this results in darkening of the broth
Use: For the isolation, cultivation, and enumeration of yeast and
fila-mentous fungi (mold)
Malt Extract Broth
Composition per liter:
Malt extract 17.0g
Mycological peptone 3.0g
pH 5.4 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from Oxoid
Unipath
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Autoclave for 10 min at 15 psi pressure–115°C
Use: For the cultivation of molds and yeasts, especially for sterility
testing
Malt Extract Broth
Compositionper liter:
Malt extract, purified solids 15.0g
pH 4.7 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from BD
Di-agnostic Systems
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Autoclave for 15 min at 15 psi pressure–118°C Do not over-heat
Use: For the cultivation of yeasts and molds
Malt Extract Charcoal Medium (DSMZ Medium 801)
Compositionper liter:
Malt extract 30.0g Agar 15.0g Charcoal 3.0g
pH 6.5 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 10 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of Boletus edulis, Xerocomus badius DSM 4436, Antrodia serialis, and other filamentous fungi
Malt Extract Glucose Agar (DSMZ Medium 735)
Compositionper liter:
Agar 15.0g Malt extract 10.0g Glucose 5.0g
pH 7.1 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of Morchella esculenta spp., Verpa digitaliformis, Disciotis venosa, Mitrophora semilibera, Gyro-mitra spp., and Mitrophora semilibera.
Malt Extract HiVeg Agar Base
Compositionper liter:
Malt extract 30.0g Agar 15.0g Plant peptone No 4 5.0g
pH 5.4 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from Hi-Media
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Adjust pH to 5.4 Gently heat and bring to boiling Distribute into tubes or flasks Auto-clave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes
or leave in tubes
Use: For the cultivation and maintenance of fungi, especially yeasts
Malt Extract HiVeg Agar Base, Modified
Compositionper liter:
Agar 15.0g Maltose 12.75g Dextrin 2.75g Plant peptone 0.78g
pH 6.0 ± 0.2 at 25°C
Trang 9Malt Yeast Extract 50% Glucose Agar (MY50G) 1003
Source: This medium is available as a premixed powder from
Hi-Media
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Adjust pH to 6.0
Gently heat and bring to boiling Distribute into tubes or flasks
Auto-clave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes
or leave in tubes
Use: For the cultivation of yeasts and molds
Malt Extract HiVeg Broth Base
Compositionper liter:
Malt extract 17.0g
Plant peptone No 4 3.0g
pH 5.4 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from
Hi-Media
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Adjust pH to 5.4
Gently heat and bring to boiling Distribute into tubes or flasks
Auto-clave for 15 min at 15 psi pressure–121°C
Use: For the cultivation of yeasts and molds
Malt Extract Peptone Agar
Composition per liter:
Malt extract 30.0g
Agar 15.0g
Soy peptone 3.0g
pH 5.6 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Adjust pH to 5.6
Gently heat and bring to boiling Distribute into tubes or flasks
Auto-clave for 10 min at 15 psi pressure–121°C Pour into sterile Petri dishes
or leave in tubes
Use: For the cultivation and maintenance of Basidiobolus ranarum
and Sclerophoma pityophila.
Malt Extract Peptone Agar
Compositionper liter:
Malt extract 30.0g
Agar 15.0g
Papaic digest of soybean meal 3.0g
pH 6.8 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation and maintenance of Ascobolus immersus,
Aspergillus amstelodami, and Aspergillus clavatus.
Malt Extract Yeast Extract
40% Glucose Agar (MY40G)
Compositionper liter:
Glucose 400.0g
Agar 12.0g
Malt extract powder 12.0g Yeast extract 3.0g
pH 5.5 ± 0.2 at 25°C
Preparation of Medium: Add components, except glucose, to 550.0mL of distilled/deionized water Mix thoroughly Gently heat and bring to boiling Bring volume to 600.0mL with distilled/deionized wa-ter While the solution is still hot, add the glucose all at once while stir-ring to avoid formation of lumps Autoclave for 30 min at 0 psi pressure–100°C
Use: For the isolation and cultivation of osmotolerant microorganisms from foods
Malt and Peptone Medium
Compositionper liter:
Agar 15.0g Malt extract 10.0g Peptone 5.0g NaCl 1.0g
pH 6.5 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Distribute into tubes
or flasks Adjust pH to 6.5 Autoclave for 15 min at 15 psi pressure– 121°C
Use: For the cultivation and maintenance of Flavobacterium species.
Malt Peptone Yeast Extract Agar
See: MPY Agar
Malt Yeast Agar
Compositionper liter:
Agar 20.0g Glucose 10.0g Peptone 5.0g Malt extract 3.0g Yeast extract 3.0g
pH 7.0 ± 0.2 at 25°C
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 20 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Arthrobacter viscosus.
Malt Yeast Extract 50% Glucose Agar (MY50G)
(ATCC Medium 2093)
Compositionper liter:
Glucose 500.0g Agar 10.0g Malt extract 10.0g Yeast extract 2.5g
pH 5.5 ± 0.2 at 25°C
Preparation of Medium: Add agar, yeast extract, and malt extract
to distilled/deionized water and bring volume to 500mL Mix thor-oughly Gently heat while stirring until boiling Slowly add glucose while stirring to avoid lumps Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Do not overheat or agar will not harden Pour into sterile Petri dishes or leave in tubes Note: This agar hardens very slowly
Use: For the cultivation of yeasts and molds
Trang 101004 Malt 2% Yeast Extract Agar
Malt 2% Yeast Extract Agar
(MYA2)
Compositionper liter:
Agar 20.0g
Malt extract 20.0g
Yeast extract 1.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Actinomucor elegans, Actinospora
mega-lospora, Agaricus bisporus, Ceratocystis perfecta, Ceratocystis cana,
Cer-atocystis seticollis, Chaetomium trilaterale, Chaetomium indicum,
Chaetomium seminudum, Chaetomium piluliferum, Cirrenalia
macro-cephala, Kluyveromyces species, Lepista inversa, Torula dematia,
Tricho-derma pseudokoningii, and other fungi
Malt 4% Yeast Extract Agar
(MYA4)
Compositionper liter:
Malt extract 40.0g
Agar 20.0g
Yeast extract 1.0g
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15
psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Arthrobotrys arthrobotryoides,
Ascospha-era apis, Bettsia alvei, CAscospha-eratocystiopsis minuta, Chaetomium
spino-sum, Chaetomium piluliferum, Ciboriopsis simulata, Dactylella
minuta, Dactylella rhombospora, Dactylella lysipaga, Eriopeziza
cae-sia, Europhium clavigerum, Issatchenkia orientalis, Moniliella
suave-olens, and other fungi
Malt 4% Yeast Extract Agar with Lupine Stems
(MYA4 with Lupine Stems)
Compositionper liter:
Malt extract 40.0g
Agar 20.0g
Yeast extract 1.0g
Lupine stems variable
Preparation of Medium: Add components, except lupine stems, to
distilled/deionized water and bring volume to 1.0L Mix thoroughly
Gently heat and bring to boiling Distribute 6.0mL volumes into tubes
Cut lupine stems into 8.0cm-long pieces Add 2–3 lupine stems per
tube Autoclave for 15 min at 15 psi pressure–121°C Allow tubes to
cool in a slanted position
Use: For the cultivation of Ceratocystiopsis minuta-bicolor,
Ceratocysti-opsis retusi, Ceratocystis pilifera, Ceratocystis olivaceapini, Ceratocystis
multiannulata, Ceratocystis nigra, Ceratocystis olivacea, Ceratocystis
tremuloaurea, Chaetomium indicum, and Chaetospermum chaetosporum.
Malt 8% Yeast Extract Agar
(MYA8)
Compositionper liter:
Malt extract 80.0g
Agar 20.0g
Yeast extract 1.0g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Thielavia hyalocarpa.
Maltea
Compositionper liter:
Maltea 40.0g Agar 22.0g Yeast extract 3.0g
Preparation of Medium: Add components to distilled/deionized water and bring volume to 1.0L Mix thoroughly Gently heat and bring
to boiling Distribute into tubes or flasks Autoclave for 15 min at 15 psi pressure–121°C Pour into sterile Petri dishes or leave in tubes
Use: For the cultivation of Leucogyrophana mollusca
Maltose Peptone Yeast Extract Agar
See: MPY Agar
Maltose Peptone Yeast Extract Broth
See: MPY Broth
Maltose Peptone Yeast Extract Medium
See: MPY Agar Manganese Acetate Agar
Compositionper liter:
Agar, highly purified 10.0g Manganous acetate 0.1g
pH 7.0 ± 0.2 at 25°C
Preparation of Medium: Add manganous acetate to distilled/de-ionized water and bring volume to 1.0L Mix thoroughly Adjust pH to 7.0 Add agar Steam the medium to dissolve agar Distribute into screw-capped tubes or bottles Autoclave for 15 min at 15 psi pressure– 121°C Allow tubes or bottles to cool in a slanted position
Use: For the cultivation of manganese-oxidizing bacteria
Manganese Agar No 1 (Mn Agar No 1)
Compositionper liter:
Agar 10.0g MnCO3 2.0g Beef extract 1.0g Fe(NH4)2(SO4)2 0.15g Sodium citrate 0.15g Yeast extract 0.075g Cyanocobalamin solution 10.0mL
Cyanocobalamin Solution:
Compositionper 10.0mL:
Cyanocobalamin 0.005mg
Preparation of Cyanocobalamin Solution: Add cyanocobala-min to distilled/deionized water and bring volume to 10.0mL Mix thoroughly Filter sterilize
Preparation of Medium: Add components, except cyanocobala-min, to distilled/deionized water and bring volume to 990.0mL Mix thoroughly Autoclave for 15 min at 15 psi pressure–121°C Cool to 45°–50°C Aseptically add 10.0mL of the sterile cyanocobalamin