pulsed electric fields in food preservation

... dissociation of tubulin dimers or promoting the binding of microtubule severing enzymes By increasing the amount of buckling microtubules within the cell, pulse application could therefore increase the ... measured by incubating cells with 10 nM Tetramethylrhodamine, methyl ester (TMRM) (Interchim) at room temperature, in the dark for 30 minutes, and washing three times in HBSS before imaging Live ... Electr Insul 10, 795–809 (2003). 14 Vincelette, R L et al Thresholds for phosphatidylserine externalization in Chinese hamster ovarian cells following exposure to nanosecond pulsed electrical fields

Ngày tải lên: 19/11/2022, 11:46

... of phenomena including the electric field surrounding Earth In fair weather the ionosphere is positive and the Earth largely negative, maintaining the electric field ([link](a)) In storm conditions ... Sketch the electric field lines in the vicinity of the charged insulator in[link] noting its nonuniform charge distribution 9/12 Trang 10A charged insulating rod such as might be used in a classroom ... object, preventing electric charge from penetrating inside Conceptual Questions Is the object in[link]a conductor or an insulator? Justify your answer If the electric field lines in the figure

Ngày tải lên: 30/10/2017, 22:42

... primarily based on reducing the free moisture content in food thereby dampening the biological processes Some of these include drying, refrigeration, curing, smoking, pickling, sugaring etc Pasteurization ... changes need to be investigated in detail References Álvarez, I., Condón, S and Raso, J 2007 Microbial inactivation by pulsed electric fields In: Raso J and V Heinz, editors Pulsed Electric Field ... treatment in microbial and enzyme inactivation is that it is a bi-phasic process i.e a faster rate of inactivation in initial stages of treatment followed by decrease in inactivation for remaining

Ngày tải lên: 21/05/2020, 20:34

... Institute, Beijing, China 2College of Engineering, Peking University, Beijing, 100871, China 3Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China *These authors ... high intensity pulsed electric fields induce apoptosis in human cells FASEB J 17, 1493–1495 (2003). 49 Ren, W., Sain, N M & Beebe, S J Nanosecond pulsed electric fields (nsPEFs) activate intrinsic ... m loss and increased Ca2+ levels nsPEFs can trigger a rapid decrease in Δ Ψ m in multiple cell lines, including B16F10 murine melanoma and E4 squa-mous cells46,47 The rapid change in Δ Ψ m leads

Ngày tải lên: 04/12/2022, 15:31

... ee tee eee 61 Describing daily specials « Helping customers on a serving line *« Keeping the serving line stocked and clean * Serving food properly * Doing side work ¢ Assisting other workers Unit ... taking orders « Describing specials and answering questions about the menu * Recommending menu items ¢« Handling complaints about food, service, and the bill Checking a server’s station * Working ... speaking, listening, reading, writing, and critical thinking Specific problem-solving strategies Models of successful attitudes and behaviors at work Series Components Make Your Mark in Food

Ngày tải lên: 07/12/2013, 16:53

... firm understanding of the major consumer health concerns influencing purchasing decisions and eating habits Identifying the main health-related issues influencing the food and drinks industry at ... conducted in July 2004; the ‘Future Innovations in Food and Drinks’ industry opinion survey attracted responses from 323 industry executives and was conducted in June 2004; the ‘Healthy and Diet Food ... make insulin because the body's immune system has attacked and destroyed them Treatment typically offered for type 1 diabetes includes taking insulin shots or using an insulin pump, healthy eating,

Ngày tải lên: 06/03/2014, 05:21

... reproduced or transmitted in any form or by any means electronic or mechanical including photocopy, recording, or any information storage and retrieval system without permission in writing from the Publisher ... distribution in plants and crops Sourcesink relationships Marcel Dekker Inc New York 905 pp Ziegler P 1095 Carbohydrate degradation during germination In “Seed Development and Germination” ( J ... mutagenesis of Lysinem, the activator binding site, of ADP-glucose pyrophosphorylase from Anobaena PCC 7120 Biochem 35,3115-3121 Sheng, J., and Preiss J 1998 Arginine’% is essential for the inhibition

Ngày tải lên: 15/03/2014, 09:20

... Planning, Recruitment and Selection – Difference between Recruitment and Selection, Steps in the Selection Procedure; Training and Development – Need for Training, Steps in Training, Training ... Plant Maintenance, Safety & Hygiene FT 703B: Fermented Food Products FT 802B: Principles of Biochemical Engineering FT 703C: Utilization of FT 802C: Modeling and Food Industry Simulation of Food ... B.Tech in Food Technology Module I (9L) Introduction to biochemical process industries; Industrial alcohols, antibiotics, acids, alcoholic beverages, Vitamins, enzymes, single cell protein, food

Ngày tải lên: 18/03/2014, 00:20

... point 19 Superheated steam is preferred to saturated steam as a heating medium inthe food industry S Yanniotis, Solving Problems in Food Engineering. Ó Springer 2008 5 Trang 1620 Steam in the food ... which are frequently used in food processing, e.g., evaporation, drying, thermal processing, cooling andfreezing, etc The most difficult part of a course in food engineering is oftenconsidered the ... Solving Problems in Food Engineering. Ó Springer 2008 21 Trang 30Review QuestionsWhich of the following statements are true and which are false? 1 The energy in a system can be categorize as internal

Ngày tải lên: 26/03/2014, 09:05

... carotenoids (Vitamin A, 2007), vitamin D is synthesized in the skin when in direct contact with UVB radiation (Vitamin D, 2007), and vitamin K is made by bacteria living in the intestines when insufficient ... of vitamin A that they were ingesting (Vitamin A, 2007) Not all vitamins need to be ingested in their final form because the body can synthesize some vitamins from other molecules Vitamin A is ... clothing, moving to temperate climates, and the tradition of keeping infants indoors), increased skin pigmentation, reduced in-utero exposure, and reduced capacity to synthesize vitamin D with increasing

Ngày tải lên: 31/03/2014, 22:20

... Campylo-bacter infection in the United States and declining trend in inci-dence Clinical Infectious Diseases, 38(Suppl 3), S165eS174. Savage, W (1920) Food poisoning and food infections Cambridge: ... dioxin-like compounds in food and feed in the past More than 90% of dioxin in human bodies is de-rived from the food chain Several measures have been im-plemented, including the setting of maximum limits, ... experiencemajor constraints in obtaining legal approval for, or incompeting with similar products The aforementioned Trang 13discipline e rising from the market and impinging on sci-ence upstream,

Ngày tải lên: 31/03/2014, 22:20

... the use of organic solvents in food processing and the possible solvent contamination of the final products. The high cost of organic solvents and the increasingly stringent environmental regulations ... used for protein purification through the fractional precipitation of proteinalkaline phosphatase, insulin, The Use of Supercritical Fluid Extraction Technology in Food Processing R.S. Mohamed ... Technology in Food Processing By Rahoma S. Mohamed a and G.Ali Mansoori b,* a School of Chemical Engineering, The State University of Campinas-Unicamp, C.P. 6066, Campinas-SP,

Ngày tải lên: 31/03/2014, 22:20

... enough in a cylinder to convey a fluid) that con- tinuously processes a product Extruders may be designed to include various grinding, mixing, homogenizing, cooking, cooling, vacuumiz- ing, shaping, ... screws in relation to one another into the following: intermesh- ing and nonintermeshing COUNTERROTATING TWIN-SCREW EXTRUDERS These types of extruders are not widely used in the food industry ... Fully Intermeshing Self-wiping Corotating Fully Intermeshing Self-wiping Figure 5 Counter- and corotating fully intermeshing self-wiping twin-screw (courtesy of Wenger Manufacturing Co., Sabetha,

Ngày tải lên: 02/04/2014, 15:02

... affecting the food industry, such as the Trang 22need to control pathogens and certain toxins in food, to reduce the amount ofpackaging, food waste and carbon footprint in the life cycle of food ... others, to engage in achallenging intellectual task, and tend to be intrinsically motivated to engage inelaborate information processing involving intense cognitive effort Such indi-viduals are ... that, in general, people tend to be more accepting ofemerging technologies that are applied in the pharmacology and medical sec-tors than in the food sector Functional foods (foods containing compoundswith

Ngày tải lên: 02/04/2014, 15:05

... Annealing … Markov Chain Monte Carlo (MCMC) sampling Trang 31 Extract features from the input image… Each pixel s in the image has a feature vector … For the whole image, we have 2 Define the ... Modelization?neighboring pixels usually have similar properties (intensity, color, texture, …) model which captures such contextual constraints underlying structure Î Simulated Annealing Trang 7What is MRF?Fields, ... empirical mean and variance: … where Sλdenotes the set of pixels in the training set of class λ … a training set consists in a representative region selected by the user Trang 17s s s f U

Ngày tải lên: 24/04/2014, 13:13

... proceeds in a quite similar way Indeed,it is shown inRef [72] that the dissipation length scale of these kinds of waves coincides with the Silk dampingscale More interesting is the result found in ... observational situation Magnetic xelds in galaxies The interstellar magnetic "eld in the Milky Way has been determined using several methods which allowed to obtain valuable information about the amplitude ... bedue to an original photon creating an electron}positron pair and in turn the charged particlesending a photon in the original direction by inverse Compton scattering For sources at cos- mological

Ngày tải lên: 24/04/2014, 17:19

... modern dielectric theory and engineering, including the lastest analysis and modeling techniques As the editor of the Power Engineering Series, I am proud to include Dielectrics in Electric Fields ... maintenance Polymer scientists are interested in understanding the role of long chain molecules in varied applications ranging from heat resistant dielectrics to selfrepairing plastics The intensity ... complex dielectric constant are explained and the influence of frequency and temperature in determining the relaxation is examined Functions for representing the complex dielectric constant in the...

Ngày tải lên: 21/03/2014, 12:08

... sphere of radius R and a dielectric constant 82 The sphere is situated in a dielectric medium extending to infinity and having a dielectric constant of S] and an external electric field is applied ... A DIELECTRIC SPHERE IMMERSED IN A DIFFERENT MEDIUM A typical problem in the application of Laplace's equation towards dielectric studies is to find the electric field inside an uncharged dielectric ... substituting equation (1.25) in (1.24) The method of finding the solution of Laplace's equation in some typical examples is shown in the following sections TM Copyright n 2003 by Marcel Dekker, Inc...

Ngày tải lên: 21/03/2014, 12:08

... shown in the following section 2.3 THE INTERNAL FIELD To calculate the internal field we imagine a small spherical cavity at the point where the internal field is required The result we obtain varies ... local ordering in the dielectric23 It has the value of unity if we imagine a molecule to be held fixed, and the average moment of a spherical region of finite radius within an infinite specimen ... gives rise to an electric field in a direction perpendicular to E and this component is ' PcosQsmOdA dE sin - - Substituting expression (2.17) in this expression and integrating we get o ~ Hence...

Ngày tải lên: 21/03/2014, 12:08

... n increases s' changes with increasing COT, the curves crossing over at COT = At n=l the change in s' with increasing COT is identical to the Debye relaxaton, the material then possessing a single ... particularly in long chain polymers, a linear configuration Further, in the solid phase the dipoles are more likely to be interactive and not independent in their response to the alternating field7 ... n increases the curves become narrower and the peak value increases This behavior is consistent with that shown in fig 3.8 Let the lines joining any point on the Cole-Cole diagram to the points...

Ngày tải lên: 21/03/2014, 12:08