Hemicelluloses Extraction of Bagasse and Bagasse Pith

Abstract

In this paper, bagasse (de-pithed bagasse) and bagasse pith were treated respectively, the process of hemicelluloses extraction was optimized, and some parameters which may affect the hemicelluloses yield were discussed, such as alkali charge, temperature and time of extraction. The results showed that the hemicelluloses yield of bagasse was obviously affected by the alkali charge and temperature of extraction increasing at the same liquid-to-solid ratio and time, and the maximum reached 18.47% (base on o.d.) . To bagasse pith, it could obtain hemicelluloses of 15.37% by the same treatment with bagasse. Therefore, both bagasse and bagasse pith were the good materials for hemicelluloses extraction.