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Download Modern Solid State Fermentation: Theory and Practice by Hongzhang Chen PDF

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By Hongzhang Chen

“Modern reliable country Fermentation: conception and perform” covers state of the art experiences within the box of reliable country fermentation (SSF). when it comes to varied features of microbial metabolites, this publication catalogs SSF into major elements: anaerobic and cardio SSF. in keeping with the foundations of porous media and methods of procedure regulate and scale-up, that are brought within the publication, it not just provides a well-founded clarification of essence of stable country fermentation, but in addition their effect on microbial body structure. moreover, as a result of speedy improvement of this box in recent times, inert help reliable country fermentation is additionally tested intimately. eventually, the fashionable sturdy kingdom fermentation know-how platform is proposed, so one can be utilized in good biomass bioconversion. This ebook is meant for biochemists, biotechnologists and procedure engineers, in addition to researchers attracted to SSF.

Dr. Hongzhang Chen is a Professor at Institute of method Engineering, chinese language Academy of Sciences, Beijing, China.

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Chen HZ, Qiu WH. Key technologies for bioethanol production from lignocellulose. Biotechnol Adv. 2010;28:556–62. Chen HZ, Xu J. Modern solid state fermentation: theory and practice. Beijing: Chemical Industry Press; 2004. Chen HZ, Xu FJ, Tian ZH, Li ZH. A novel industrial-level reactor with two dynamic changes of air for solid-state fermentation. J Biosci Bioeng. 2002;93:211–4. Couto SR, Gundin M, Lorenzo M, Sanroman M. Screening of supports and inducers for laccase production by Trametes versicolor in semi-solid-state conditions.

The microbial cells in the outermost layer show a poisoned state, and both their growth rates and their enzyme activities are reduced because of the high oxygen concentration. 1 Overview of the Microbial Physiology of Solid-State Fermentation 25 there are other gradients in the actual biofilms, such as of carbon and nitrogen source distribution. Excess glucose in the biofilm surface causes repression of the metabolites. The synergism of different kinds of microbes is another characteristic of solid matrix metabolism.

2 Contamination Control For solid-state fermentation, contamination is often inevitable. As long as the operation is proper, the contamination can be controlled so it is harmless. Common practices include (1) control of substrate water activity; (2) increase in the inoculation amount; and (3) adjustment of pH values (addition of acetic or lactic acid to the medium may also enhance the antibacterial capability of the culture). (4) Cooling can be used. In summer, the temperature is high; media are often easily contaminated.

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