期刊
BIORESOURCE TECHNOLOGY
卷 325, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.124698
关键词
Maleic acid; Xylose recovery; Glucose; Wheat straw; Enzymatic hydrolysis
资金
- Undergraduate Training Program for Innovation of Zhejiang Province [S202013023012]
- Doctoral Scientific Research Foundation of Hangzhou Medical College [0004F1RCYJ1905]
The valorization of wheat straw for xylose and glucose recovery using maleic acid in the pretreatment was studied. Optimal conditions for xylose recovery were determined through response surface methodology. Enzymatic hydrolysis of maleic acid-pretreated wheat straw achieved high cellulose conversion and low degradation product, providing a strategy for fermentable sugars production.
This study aims to valorize wheat straw for xylose and glucose recovery using maleic acid in the pretreatment. The process conditions of maleic acid hydrolysis of wheat straw for xylose recovery were optimized by response surface methodology, through which the maximum xylose recovery of 77.12% versus minimum furfural yield of 1.61% were achieved using 70 g/L solid-to-liquid ratio and 0.1 mol/L maleic acid for 40 min at 150 degrees C. Moreover, 88.58% cellulose conversion was achieved by enzymatic hydrolysis of maleic acid-pretreated wheat straw. Results showed that maleic acid was an effective pretreatment solvent for sugars recovery: 19.88 g xylose and 30.89 g glucose were respectively obtained from 100 g wheat straw due to acidic and enzymatic hydrolysis, with only 0.37 g furfural produced. This study provides a strategy for hydrolyzing wheat straw to produce fermentable sugars with low amount of degradation product.
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