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Preliminary evaluation of five elephant grass cultivars harvested at different time for sugar production

文献类型： 外文期刊

作者： Li, Yuanyuan 1 ; Zhang, Yelong 1 ; Zheng, Hongbo 1 ; Du, Jian 2 ; Zhang, Hongman 1 ; Wu, Juanzi 3 ; Huang, He 2 ;

作者机构： 1.Nanjing Tech Univ, Coll Sci, Nanjing 210009, Jiangsu, Peoples R China

2.Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, China State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Anim Sci, Nanjing 210014, Jiangsu, Peoples R China

关键词： Energy crop;Elephant grass;Dilute sulfuric acid pretreatment;Enzymatic hydrolysis;Glucose

期刊名称：CHINESE JOURNAL OF CHEMICAL ENGINEERING （ 影响因子：3.171； 五年影响因子：2.853 ）

ISSN： 1004-9541

年卷期： 2015 年 23 卷 7 期

页码：

收录情况： SCI

摘要： Five elephant grass cultivars, Pennisetum purpureum. cv. Huanan (Huanan), P. purpureum. cv. N51 (N51), P. purpureum. cv. Sumu No. 2 (Sumu-2), (Pennisetum americanum x P. purpureum) x P. purpureum cv. Guimu No. 1 (Guimu-1) and P. americanum cv. Tift23A x P. purpureum cv. Tift N51 (Hybrid Pennisetum), at three harvest stages were studied. With dilute sulfuric acid pretreatment followed by enzymatic hydrolysis, it is found that cellulose conversion of the five elephant grass cultivars harvested in August and September is higher than that harvested in October. The cellulose conversion for elephant grass cultivars harvested in August and September follows an order of Hybrid Pennisetum N Sumu-2 N Huanan N Guimu-1 N N51. This may be explained by the fact that lignification is gradually strengthened with time, inhibiting degradation of cellulose and hemicellulose. Moreover, cellulose conversions of Hybrid Pennisetum, Sumu-2 and Huanan harvested in August and September are higher based on hierarchical clustering results. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

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