Citation

El-Ashmawy, A. E., El-Kalyoubi, S., and Y. Fahmy, Hemicelluloses of bagasse and rice straw. Egypt. J. Chem. 18: 149-156, 1975.

Abstract

Holocelluloses of bagasse and rice straw were prepared from the extractive-free plant material by the aceticacid-sodium chlorine method Hemicelluloses were obtained from these holocelluloses by extraction with 10% sodium hydroxide solution. The isolated rice straw hemicelluloses contained a high proportion of ash which was removed by purification through copper-complex formation. Pentoses constituted 70% of this purified rice straw hemicellulose compared to 80% in case of purified bagasse hemicellulose. It was found that hemicellulose fraction A is richer in pentoses than fraction B.

Analyses of individual sugars showed that all isolated hemicellulose fractions contain xylose, arabinose and glucose. Galactose was found only in the B fraction. Quantitative determination of the sugars in the acid hydrolyzated of the different hemicellulose fractions showed that xylose predominated.

Country, State, District, etc.

Egypt

Language

English

Material

rice straw, bagasse

Use category

chemical production