Study on the Microbial Hydrolysis of Maize Straw and the Water Reducing Properties of the Hydrolysate

Abstract:

A two-step fermentation procedure for maize straw hydrolysis by Phanerochaete chrysosporium, Trichoderma and Aspergillus niger were investigated in this study. 2 mL of P. chrysosporium (10⁷spores/mL) was added to 50 mL medium for the first fermentation stage. The optimal culture conditions were 28°C of culture temperature, 4.0 of pH, 8 days of culture time, 2 mL of Trichoderma suspensions (10⁷spores/mL) and 1 mL of A. niger suspensions (10⁷spores/mL) of the inoculums size on the second fermentation stage. Under the optimal conditions, the crude degradation rate achieved 48.2%. Via sulfonation, oxidate-lignosulfonate alkali lignin (OLAL) was achieved from maize straw hydrolysate(MSH).OLAL and MSH can be partial substitution for common water reducers and OLAL was more efficient compared to that of MSH.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 87-92
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.87
• Online since: August 2011
• Authors: Yuan Xiu Wang, Gui Xiang Zhang, Xiao Yan Song, Na Xin Sun, Yu Mei Li, Hui Zhong Wang
• Keywords: Hydrolysate, Maize Straw, Water Reducer

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