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MessagePosté le: Ven 7 Oct - 03:27 (2016)    Sujet du message: Submerged State Fermentation Pdf Free Répondre en citant




Submerged State Fermentation Pdf Free > shorl.com/hobrakymelaju











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Solid state fermentation uses culture substrates with low water levels (reduced water activity), which is particularly appropriate for mould. Conclusions There have been significant developments in SSF technology over past few years. .. "Fermentation en milieu solide: croissance de champignons filamenteux sur substrat amylac". Today with better understanding of biochemical engineering aspects, particularly on mathematical modelling and design of bioreactors (fermenters), it is possible to scale up SSF processes and some designs have been developed for commercialisation. The solid materials/matrices used for SSF have low thermal conductivities, hence heat removal from the process could be very slow. While tray and drum type fermenters have been studied and used since long, much focus has been paid in last few years on developing packed bed fermenters as they could provide better process economics and a great deal of handling ease. ^ Raimbault 1980.

SSF processes generally employ a natural raw material as carbon and energy source. This can also be determined by substrate digestion, heating and centrifuging substrate, using light reflectance, DNA measurement by glucosamine level, protein content, oxygen uptake rate and carbon dioxide evolution rate. has offered several advantages. On the other hand, low moisture content may lead to poor accessibility of nutrients resulting in poor microbial growth. General aspects of SSF There are several important aspects, which should be considered in general for the development of any bioprocess in SSF. These include physicochemical and biochemical parameters such as particle size, initial moisture, pH and pre-treatment of the substrate, relative humidity, temperature of incubation, agitation and aeration, age and size of the inoculum, supplementation of nutrients such as N, P and trace elements, supplementation of additional carbon source and inducers, extraction of product and its purification, etc. Pandey, A. However, so far there is not any established scale or method to compare product yields in SSF and SmF in true terms.

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