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Type: Artigo de periódico
Title: Enzymatic hydrolysis of rice hull using cellulases. Effect of chemical and photochemical treatments.
Author: Reyes, J
Peralta-Zamora, P
Duran, N
Abstract: In the present work we reported the study of rice hull enzymatic hydrolysis using a commercial cellulase preparation. The results showed that previous treatment with light and sodium chlorite inhibits the enzymatic process (31.4 and 11.8%, respectively) while hydrogen peroxide and ozone favoured the enzymatic production of reducing sugars (5.9 and 54.9%, respectively). Studies performed by quimiluminescence showed that the chlorite treatment produced the most significant change in the structure of rice hull. Nevertheless, this treatment did not favour the subsequent enzymatic process. Photomicrographs obtained from rice hull hydrolysates showed that pre-treatment changed mainly the inner epidermis and parenchyma cell and that they did not change cellular organization of the hull.
Subject: rice hull
enzymatic saccharification
Country: Brasil
Editor: Soc Brasileira Quimica
Citation: Quimica Nova. Soc Brasileira Quimica, v. 21, n. 2, n. 140, n. 143, 1998.
Rights: aberto
Identifier DOI: 10.1590/S0100-40421998000200006
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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