Cellulose, from bagasse

Yield of Microorganisms. If microbial cells are to be produced in large quantity from bagasse or other cellulosic materials, it is necessary to obtain some information about the ratio of the amount of cellulose consumed to the production of cells. Such data obtained from experiments utilizing limiting amounts of CM-cellulose under optical conditions of temperature and pH are presented in Table IV. Fifty percent of the carbohydrate disappeared and can be accounted for by the yield of... 

A scheme to utilize cellulose as a renewable resource, developed by Prof. A.E, Humphrey, is shown in Figure 1. Cellulose from either crops or solid wastes can be converted into enzymes, proteins, sugar,alcohols and other biochemical products for food, energy or consumer products. The pretreatment of bagasse requisite for fermentation also adds to its cost as a potential substrate. It is concluded that direct fermentation of cellulose still is several years away. 

Casting is one of the most common techniques for processing lab scale starch composites. Different types of polysaccharide nanofillers such as cellulose from flax, wood, hemp ramie, cassava bagasse, wheat straws, starch from waxy maize, regular maize, and chitin, chitosan, among others were used to fabricate starch nanocomposites by the solution casting method. 

Monilia sp, isolated from bagasse compost was found to utilize many polysaccharides including cellulose and produce ethanol, and cellulase and xylanase enzymes [61]. Cellulase activity was detectable in the culture medium after 48 h of growth. Interestingly, when cellulose was used as a substrate, both cellulase and... 

Figure 15.5 Schematic representation of Isolation of chemically purified cellulose from sugarcane bagasse [70].

Sun JX, Sun XF, Zhao H, Sun RC. Isolation and characterization of cellulose from sugarcane bagasse. Polym... 

Bagasse -microbial transformations [MICROBIAL TRANSFORMATIONS] (Vol 16) - [SUGAR - CANE SUGAR] (Vol 23) - [PAPER] (Vol 18) -cellulose source [CELLULOSE] (Vol 5) -fuel from [FUELS FROM WASTE] (Vol 12) -as fuel resource [FUEL RESOURCES] (Vol 12) -fuel for steam prdn [STEAM] (Vol 22)... 

The approach "select favorable raw material has a major impact on the selection of pretreatment processes. For example, the poplar responds splendidly to many pretreatments that fail with Douglas fir or pine-based materials (I). Specific tissues and cells of a given biomass raw material will respond quite differently. For example, the rind fiber of sugarcane bagasse behaves quite differently from the pith fiber (11)- In woody species, the selection of tissues low in bark and extractives is an important factor in the ease or resistance to cellulose hydrolysis. Before embarking on development of processes for hydrolysis of a biomass resource, it is highly desirable to exercise discretion with respect to the choice of raw materials at both the species and tissue levels. This idea is all the more important in an initial choice of species and pretreatment process. 

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