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EFFECT OF (CO)-C-60-gamma IRRADIATION ON THE MICROSTRUCTURE AND ENZYMATIC HYDROLYSIS OF RAPESEED STRAW

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文献类型：外文期刊

作者： Zhang, C. Y. ¹ ; Su, X. J. ¹ ; Hu, Q. L. ² ; Zhang, T. ³ ; Tan, X. H. ¹ ; Xiong, X. Y. ² ;

作者机构： 1.Hunan Agr Univ, Coll Food Sci & Technol, Changsha 410128, Hunan, Peoples R China

2.Hunan Agr Univ, Key Lab Corp Germplasm Innovat & Resource Utiliza, Changsha 410128, Hunan, Peoples R China

3.Hunan Biol & Electromech Polytech, Changsha 410127, Hunan, Peoples R China

4.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China

关键词： rapeseed straw;gamma-ray irradiation;enzymatic hydrolysis;microstructure;total reducing sugar;sugar compounds

期刊名称：CELLULOSE CHEMISTRY AND TECHNOLOGY （影响因子：1.467；五年影响因子：1.288 ）

ISSN： 0576-9787

年卷期： 2016 年 50 卷 9-10 期

页码：

收录情况： SCI

摘要： In this study, rapeseed straw was pretreated with Co-60-gamma radiation and digested with cellulase to improve sugar production. The compositions of straw were analyzed. Results showed that there were remarkable changes in total reducing sugar and an increase in the degradation of cellulose, hemicellulose and lignin. At a dose of 1200 kGy, 39.3 times more reducing sugar from the irradiated straw was released, as compared to the control (not irradiated) straw (35.34 vs. 0.90 mg/g). Furthermore, both the total content and the number of species of sugar compounds increased. Enzymatic digestion of the irradiated straw resulted in the degradation of 79.21% and 75.59% of cellulose and hemicellulose, respectively. The total reducing sugar increased by a factor of 4.6 to 392.50 mg/g in the irradiated straw from 86.18 mg/g in the control, with greater total content and more species of sugar compounds. Analyses with X-ray diffraction, infrared spectroscopy, and scanning electron microscopy showed that the microstructure of the irradiated straw was destroyed.

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