Hydrolysis of lignocelluloses by penicillium funiculosum cellulase

Journal Article · Sun Apr 01 04:00:00 EST 1984 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260260412· OSTI ID:6630614

Mishra, C; Rao, M; Seeta, R; Srinivasan, M C; Deshpande, V

Enzymatic hydrolysis of cellulose is a promising method for the conversion of waste cellulose to glucose. During the past few years, the development of this technology has proceeded rapidly, with significant advances made in enzyme production, pretreatment, and hydrolysis. A variety of fungi are reported to produce cellulases but among these Trichoderma reesei and its mutants are powerful producers of cellulases. However, the search for new and possibly better sources of cellulase is continued due to the low levels of beta-glucosidase of T. reesei. Penicillium funiculosum produces a complete cellulase having endo-beta-1,4-glucanase (15-20 U/mL), exo-beta-1,4-glucanase (1.5-2.0 U/mL), and high beta-glucosidase (8-10 U/mL). The saccharification of alkali-treated cotton and bagasse by P. funiculosum enzyme was 70 and 63%, respectively. It was possible to obtain glucose concentration as high as 30% using 50% bagasse. It is of interest that the percent saccharification of cellulosic substrates with the Penicillium enzyme is comparable to that of T. reesei cellulase when the same amount of filter paper activity is used, although the endo-glucanase activity of the latter is two to three times higher. This communication reports the studies on saccharification of lignocelluloses by P. funiculosum cellulase and certain studies on the kinetic aspects. (Refs. 15).

• Research Organization: Biochemistry Div, National Chemical Lab, Poona 411 008, India
• OSTI ID: 6630614
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 26:4; ISSN BIBIA
• Country of Publication: United States
• Language: English

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AGRICULTURAL WASTES
ALDEHYDES
BAGASSE
BIOCHEMICAL REACTION KINETICS
CARBOHYDRATES
CELLULASE
CELLULOSE
CHEMICAL REACTIONS
COTTON
DECOMPOSITION
ENZYMATIC HYDROLYSIS
ENZYME ACTIVITY
ENZYMES
FUNGI
GLUCOSE
GLYCOSYL HYDROLASES
HEXOSES
HYDROLASES
HYDROLYSIS
KINETICS
LIGNIN
LYSIS
MONOSACCHARIDES
O-GLYCOSYL HYDROLASES
ORGANIC COMPOUNDS
ORGANIC WASTES
PENICILLIUM
PLANTS
POLYSACCHARIDES
REACTION KINETICS
SACCHARIDES
SACCHARIFICATION
SOLVOLYSIS
WASTES