Citation

Shoemaker, S., Vlasenko, E., Labavitch, J., Walker, R., Mielenz, J., and B. Dale, Characterization of enzymic treatments of pretreated rice straw. Comprehensive Research on Rice Annual Report, Project No. RU-10, University of California and United States Department of Agriculture, pp 151-190, 1995.

Abstract

Concise General Summary of Current Year's Results: California rice straw was subjected to three state-of-the-art pretreatment processes: steam explosion (Swan Biomass), dilute-acid hydrolysis (NREL), and ammonia fiber explosion (AFEX) process (Texas A&M). The enzymatic digestibility of pretreated rice straw has been evaluated using six commercial cellulases, products of Genencor International (USA), Novo (Denmark), Iogen (Canada), and Fermtech (Russia). Prior to enzymatic hydrolysis the carbohydrate composition of crude and pretreated rice straw was determined and the cellulase preparations were thoroughly characterized. The enzymatic hydrolysis of rice straw was evaluated on the basis of reducing sugar production and rheological properties of rice straw suspensions. Considerations were given on the efficacy of different pretreatment techniques for Cellulase 100L on the basis of combined yield of soluble sugars produced by pretreatment process and by enzymatic hydrolysis.

Country, State, District, etc.

United States, California

Language

English

Material

rice straw

Use category

ethanol production, energy production