... 1Determination of the Fat-Soluble Vitamins by HPLC 20.1 Nature of the Sample The lipid fraction of foods containing the fat-soluble vitamins iscomposed mainly of triglycerides, with much smaller amounts of ... of thesesubstances exhibit solubility properties similar to those of the fat-solublevitamins, and therefore they constitute a potential source of interference A proportion of the indigenous fat-soluble ... blended with anhydrous sodium sulfate(200% of the weight of the test portion of vegetable), magnesium carbon-ate (10% of the weight of the test portion), and tetrahydrofuran Theextract is filtered
Ngày tải lên: 11/04/2017, 11:13
Chapter 11 fat soluble vitamins
... Trang 1Fat Soluble VitaminsTrang 2Fat Soluble Vitamins• Vitamin A • Vitamin D • Vitamin E • Vitamin K Trang 3General Properties• Soluble in ? • Excess is stored in the body • Stored in fatty tissues ... to heat and cooking • Contain C, H, O Trang 9Vitamin A• First fat soluble vitamin • Beta-carotene is its PRECURSOR Trang 11Forms of Vitamin ATrang 12Vitamin A• Animal sources contain retinoids ... dry and hard – keratomalasia: softening of the cornea irreversible blindness Trang 30Vitamin A Deficiency• Keratinization – changes in epithelial cells – secretion of Keratin (protein in nails
Ngày tải lên: 21/04/2018, 07:45
... counterion of (Table 21.1) tively charged functional groups, respectively The positive charges of Section 20.4.3) HPLC columns used for the analysis of water-soluble vitamins are of the chromatography ... result from the protonation of basic groups, while thenegative charges of cation exchangers are produced by the protolysis of within the extensive pore structure of the matrix To preserve electricalneutrality, ... chromatography, ion besame type as those used in fat-soluble vitamin assays (see Chapter 20, Trang 2opposite charge The type of counterion specifies the “form” of the ionexchanger; for example, a strong
Ngày tải lên: 11/04/2017, 11:13
Báo cáo khóa học: Isolation and biochemical characterization of two soluble iron(III) reductases from Paracoccus denitrificans docx
... the reduction of various complexed forms of Fe(III), are of ubiquitous occurrence in nature [1] Conversion of Fe(III) to more soluble Fe(II) generally increases the bioavailability of iron and ... were eluted in two phases with 300 mL of linear gradient of 0–0.6 M NaCl and 50 mL of linear gradient of 0.6–1M NaCl at a flow rate of 0.8 mLÆmin)1 Fractions of 5 mL were collected and those displaying ... effect of FMN, and by the inability of succinate to substitute for NADH The present report describes the results of studies leading to the conclusion that at least two distinct soluble enzymes of
Ngày tải lên: 30/03/2014, 13:20
Báo cáo y học: "Gene expression atlas of the mouse central nervous system: impact and interactions of age, energy intake and gender" pdf
... analysis of the effects of aging, CR and gender on gene expres-sion in tissues throughout the body Here we report the results of the CNS component of AGEMAP in which the expression levels of 16,896 ... (a) PCA of transcriptomes of the indicated CNS regions inclusive of all ages, diets and genders The results show that each region of CNS has its own molecular signature that is independent of age, ... of age, gender and energy intake Less than 10% of genes were significantly affected by age, diet or gender, with most of these changes occurring between middle and old age The transcriptome of
Ngày tải lên: 14/08/2014, 08:20
Báo cáo y học: "Protein-protein interactions of the hyperthermophilic archaeon Pyrococcus horikoshii OT3" pot
... distribution of computationally calculated trials where we randomly removed the same number of interactions. Selected (49 interactions) Random (49 interactions) All hetero-interactions (92 interactions) ... (1 verses 1) 107 interactions Self: 51 interactions *hetero: 56 interactions Selected 483 mixed pairs Level: 2 and 3 Level: 1 63 interactions self: 20 interactions hetero: 43 interactions BIND ... between proteins of the same class consisted of the archaea-specific protein pairs (17 out of 30 interactions), and in the interac-tions between proteins of different classes, most of the pairs included
Ngày tải lên: 14/08/2014, 15:20
interactions of n-alkyl-2-pyrrolidinone surfactants with dmpc bilayers
... satisfaction of the dissertation requirement for the degree of Doctor of Philosophy Chair of Examining Committee Lesley Davenport, Professor Supervisory Committee Milton J Rosen, Professor Emeritus ... δhi corrected heat of titrations ∆G free energy of binding ∆G0 ad standard free energy of adsorption Trang 11∆H enthalpy of binding ∆S entropy of binding -∆T depression of the phase transition ... the degree of Doctor of Philosophy The City University of New York 2006 Trang 23231940 2006Copyright 2006 by Kopkalli, Yasemin UMI Microform Copyright All rights reserved This microform edition
Ngày tải lên: 13/11/2014, 09:20
Synthesis of water soluble superparamagnetic nanocomposites for biomedical applications
... Summary iii Table of Content v List of Related Publications ix List of Tables x List of Figures xi List of Abbreviations xxi Chapter 1 Introduction 1 1.1 Overview of Inorganic Nanoparticles ... Characterization of MFNPs 131 5.3.2 Synthesis and Characterization of PMAO-g-PEG 133 5.3.3 Formation of Water Soluble MFNCs: Tuning the MFNPs Core 139 5.3.4 Formation of Water Soluble MFNCs: ... Characterization of IONPs 95 4.3.1 Synthesis and Characterization of PIMA-g-C 12 96 4.3.3 Optimization of Monodisperse Phase Transfer of Hydrophobic IONPs 99 4.3.4 Synthesis and Phase Transfer of MFNPs
Ngày tải lên: 09/09/2015, 11:31
The investigation of transcription related protein protein interactions of histones in saccharomyces cerevisiae
... Trang 1THE INVESTIGATION OF RELATED PROTEIN-PROTEIN INTERACTIONS Trang 2THE INVESTIGATION OF TRANSCRIPTION-RELATED PROTEIN-PROTEIN INTERACTIONS OF HISTONES IN 2013 Trang 3ACKNOWLEDGEMENTS ... being such a good company Trang 4TABLE OF CONTENTS ACKNOWLEDGEMENTS ··· I TABLE OF CONTENTS ··· II LIST OF ABBREVIATIONS ··· IV LIST OF TABLES ··· IV LIST OF FIGURES ··· V SUMMARY ··· VI CHAPTER ... levels of cellular function The presence of protein interaction networks is a key property of complex biology systems A large number of methods have been developed for screening protein interactions
Ngày tải lên: 10/09/2015, 09:23
Characterization of murine soluble CD137 and its biological activities
... Expression of soluble CD137 Soluble isoforms are a common occurence of the members of the TNFR family These soluble isoforms are generated either by alternative splicing of the mRNA or by cleavage of ... Summary of results 110 4.2 Expression and generation of soluble CD137 112 4.3 Soluble CD137 antagonizes membrane-bound CD137 114 4.3.1 Mechanisms of action of soluble CD137 114 4.3.2 Soluble ... depiction of possible mechanisms of soluble CD137 action 16 Figure 4 Induction of soluble CD137 expression 42 Figure 5 Time course of CD137 expression 43 Figure 6 In vitro stability of soluble
Ngày tải lên: 12/09/2015, 09:55
Hydroelastic responses and interactions of mega floating fuel storage modules 1
... concept of a floating town (Fig 1.3b), which is a visionary integrated town consisting of greenhouses, commercial centre and residential area Prof Wang Chien Ming from the National University of Singapore ... anchored relatively close to shore, is constructed to ensure continuous supply of fresh fish even during the off-season of the species (Per Heggelund, 1989) (a) Sustainable engineering science barge ... architect Vincent Callebaut, is an example of a visionary proposition to house part of the city population in a huge floating city With more than half of the Netherlands’s land area now below sea
Ngày tải lên: 14/09/2015, 08:26
Hydroelastic responses and interactions of mega floating fuel storage modules 2
... the frequency domain approach is used instead of the time domain approach when determining the hydroelastic response of the floating structure because of its simplicity and ability to capture the ... formulations for the equation of motions of the fluid and plate are shown in the subsequent sections 2.2 Problem Definition Consider a floating fuel storage facility (FFSF) comprising of two box-like floating ... surface S H, which denotes that the velocity of the wave particles at the wetted surface of the floating body must be equivalent to the velocity of the structure motion V n , where n denotes
Ngày tải lên: 14/09/2015, 08:26
Hydroelastic responses and interactions of mega floating fuel storage modules 3
... Trang 1Method of Solution for Coupled Water-Plate Problem 3.1 Overview Recall in the previous chapter that we first described the equation of motion of the water using the linear ... describing the algorithm of this numerical method is given in Fig 3.1 The finite element method is used to solve the governing equations of motion for the plate because of its versatility in handling ... Hydroelastic Analysis After obtaining the discretised version of the plate equation and the boundary value problem of the water, the method of solution for the hydroelastic problem involves the following
Ngày tải lên: 14/09/2015, 08:26
Hydroelastic responses and interactions of mega floating fuel storage modules 4
... convergence as compared to the Q4 element One of the major drawback of the Q4 element is that it requires a large number of degree of freedoms (DOFs) in order to achieve convergence when h / ... result of Ritz Method C as the number of elements increases The natural frequencies shown in bold indicate that the natural frequencies of the Mindlin plate element have converged to the results of ... assess the rate of convergence of the NC-QS element We then compare the hydroelastic deflection modeled using the NC-QS element with their counterparts predicted by the Kirchhoff element and
Ngày tải lên: 14/09/2015, 08:26
Hydroelastic responses and interactions of mega floating fuel storage modules 5
... responses of the floating modules Trang 19Hydroelastic Interactions of Storage Modules 5.6.1 Effect of Floating Breakwater The effect of floating breakwater on the hydroelastic responses of the ... study in order to investigate the effect of breakwater sizes on the wave induced response of the floating storage modules Trang 3Hydroelastic Interactions of Storage Modules The incident wave ... Dimensions of (a) floating storage Perspex model (b) floating Perspex breakwater Trang 5Hydroelastic Interactions of Storage Modules Figure 5.4 shows the experimental setup in the wave basin of the
Ngày tải lên: 14/09/2015, 08:26
Interactions of Bioactive Plant Metabolites - Synergism, Antagonism, and Additivity
... portions of this chapter to refer to both approved drugs and bioactive plant compounds The binding of a drug to a protein may affect the function of that protein through a number of 10 Interactions of ... proteins Such interactions are often directly related to the binding affinity or membrane-altering ability of the drugs In contrast, pharmacokinetic interactions are due to influences of a compound ... overproduction of the target protein, production of proteins that pump the drug out of the cell, underproduction of proteins that allow the drug to enter the cell, improved repair of drug-induced...
Ngày tải lên: 25/10/2013, 05:20
Báo cáo khoa học: The capsid protein of human immunodeficiency virus: interactions of HIV-1 capsid with host protein factors ppt
... synthesis of viral DNA using host cell tRNALys as a primer for initiation Synthesis of cDNA initiates from a primer binding site of 18 bases near the 5¢ end of viral genomic RNA The 3¢ terminal end of ... proposed that helix of LysRS (H7, cyan) binds helix of CA-CTD (C4, magenta) Adjacent helices of CA (C1 in teal, C2 in orange, and C3 in blue) are also indicated structs localized sites of interaction ... different steric conformations of the cyclophilin binding loop to bind CyPA A critical hydrogen bond is required between W121 of CyPA and I91 of mature CA for stability of the CyPA–CA complex, although...
Ngày tải lên: 07/03/2014, 00:20
Báo cáo khoa học: Interactions of HIPPI, a molecular partner of Huntingtin interacting protein HIP1, with the specific motif present at the putative promoter sequence of the caspase-1, caspase-8 and caspase-10 genes pdf
... concentrations of NaCl, the fluor3888 escence intensities of GST–HIPPI increased, indicating a lesser extent of interactions of GST–HIPPI with AA AGACATG This result indicated that the interaction of GST–HIPPI ... Quenching of intrinsic fluorescence of GST–HIPPI (0.8 lM) at 340 nm (kexc ¼ 295 nm) in the presence of the bp putative motif sequence and six of its mutants Panel I Fluorescence quenching of GST–HIPPI ... in a Fluoromax spectrofluoremeter Panel II Study of any quenching of intrinsic fluorescence of GST– HIPPI due to addition of point-mutated sequences of the bp potent HIPPI-binding motif, namely:...
Ngày tải lên: 07/03/2014, 10:20
Báo cáo khoa học: Identification, subcellular localization and functional interactions of PilMNOWQ and PilA4 involved in transformation competency and pilus biogenesis in the thermophilic bacterium Thermus thermophilus HB27 ppt
... organization of the genes, potential polar effects of marker insertions on downstream-located genes of the pil cluster could not be excluded, and therefore the question of whether the products of pilM, ... characterization of seven distinct competence gene loci in the genome of T thermophilus HB27 comprising a total of 16 potential genes of the DNA translocator [6–8] However, so far, none of the competence ... PilQ protein of T thermophilus has a conserved C-terminal part, very similar to the C-termini of other members of the secretion family, such as PilQ of Myxococcus xanthus [28], ExeD of Aeromonas...
Ngày tải lên: 07/03/2014, 12:20
Báo cáo khoa học: Differential interactions of decorin and decorin mutants with type I and type VI collagens pptx
... [19] During immobilization, a flow rate of 10 lLÆmin)1 of HBS was maintained The surface of the chip was activated by injecting a mixture of equal volumes of 0.2 M N-ethyl-N¢-(3-dimethylaminopropyl)carbodiimide ... without the addition of complexes were performed For the analysis of interactions between proteoglycans and collagens, the sensograms were corrected by a modification of the method of Roden and Myszka ... Interaction involving dimerization of decorin and binding of both collagens to the inner surface of decorin (B) Interaction of type I collagen with the inner surface of the decorin core protein and...
Ngày tải lên: 07/03/2014, 16:20