Citation

Nakamura, Y, Mohammed, M., Nagao, M., Sawada, T., and M. Motoi, Modification of rice straw by steam explosion and enzymatic saccharification of steam-exploded products. Kagaku Kogaku Ronbunshu 17: 504-510, 1991.

Abstract

Key Words: Biomass, Rice Straw, Steam Explosion, Enzymatic Saccharification Steam explosion is one of the effective pretreatment methods for enzymatic saccharification of plant biomass. Rice straw was treated with high-pressure steam (2.55, 3.04, 3.53 and 4.02Mpa) for 0.5-10min. The exploded rice straw was separated into water-soluble hemicellulose, holocellulose, methanol-soluble lignin and Klason lignin. Effects of the pretreatment on the characteristics of exploded rice straw were studied from experimental data of pH and pore size distribution of exploded material, amounts of extractive components and enzymatic saccharification. The enzymatic saccharification increased with increasing amount of methanol-soluble lignin. The saccharification of the exploded rice straw was expressed as a function of stream pressure and steaming time. It was estimated from the equation that maximum saccharification was obtained at a steam pressure from 3.3 to 3.8Mpa and a steaming time of 1.0 to 3.5min.

Country, State, District, etc.

Japan

Language

Japanese

Material

rice straw

Use category

ethanol production, single cell protein