玉米生产燃料乙醇的发酵品质评价

叶俊芳; 赵仁勇

玉米生产燃料乙醇的发酵品质评价

叶俊芳,
赵仁勇^,

河南工业大学粮油食品学院, 河南郑州 450001

基金项目:

河南省现代农业产业技术体系建设专项资金(S2010-02-G06)；国家自然科学基金-河南省联合基金重点项目(U1604234)

详细信息

作者简介:
叶俊芳(1991-),女,河南周口人,硕士研究生,研究方向为粮食资源转化与利用

通讯作者:
赵仁勇,教授,E-mail:zry8600@haut.edu.cn

中图分类号: TS210.9
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出版历程
- 收稿日期: 2019-05-06
- 网络出版日期: 2022-09-29
- 刊出日期: 2022-09-29

Evaluation of Fermentation Quality of Corn for Fuel Ethanol Production

YE Junfang,
ZHAO Renyong^,

School of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China

摘要

摘要: 在实验室条件下模拟干法研磨工艺，测定了59份玉米样品生产燃料乙醇的发酵特性，探究了以淀粉含量和完全水解淀粉(CHS)含量作为评价玉米发酵品质指标的可行性。采用激光扫描共聚焦显微镜(CLSM)对醪化后样品中蛋白质的微观结构进行观察，研究蛋白质交联对玉米发酵转化效率的影响。结果表明，玉米样品的淀粉含量与乙醇产量呈极显著正相关，然而淀粉含量仅能解释81%的乙醇产量差异。CLSM的成像结果显示醪化后的玉米蛋白质形成致密的蜂窝状显微结构，转化效率低的样品其蛋白质的蜂窝状显微结构更加致密,说明蛋白质的交联程度较高。CHS含量与乙醇产量之间的决定系数为0.909 6，用CHS含量预测乙醇产量比淀粉含量更可靠。
- 玉米 /
- 淀粉 /
- 乙醇 /
- 发酵
Abstract: Fermentation properties of 59 corn samples were determined by stimulating the dry mill process in laboratory, and the feasibility of using starch content and complete hydrolyzed starch (CHS) content as indicators to evaluate fermentation quality of corn for fuel ethanol production was explored. The microstructure of protein in mashed corn samples was observed by using a confocal laser scanning microscope (CLSM) to investigate the influence of protein cross-linking on fermentation conversion efficiency. The results showed that starch content of corn samples was positively correlated to ethanol yield significantly, but it only explained 81% of the ethanol yield variation. CLSM images displayed strong web-like protein matrix in mashed corn samples, and more compact microstructures were observed in samples with lower conversion efficiencies, indicating higher degree of protein cross-linking. The coefficient of determination between CHS content and ethanol yield was 0.909 6. It was more reliable for CHS content to predict ethanol yield than starch content, which was demonstrated by a validation test to a prediction model.
- corn /
- starch /
- ethanol /
- fermentation

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参考文献(18)

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施引文献(6)

期刊类型引用(3)

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2.	林海龙，林鑫，岳国君. 我国生物燃料乙醇产业新进展. 新能源进展. 2020(03): 165-171 . 百度学术
3.	满云. 高产乙醇酵母菌株的发酵工艺优化. 蚌埠学院学报. 2020(05): 1-4 . 百度学术