Effects of Cellulase Concentration on the Whole Process of Biological Conversion of Corn Stalks

doi:10.1166/jbmb.2019.1896

	Effects of Cellulase Concentration on the Whole Process of Biological Conversion of Corn Stalks
	Zhen, Xiaofei 2; Dong, Haiying 2; Feng, Rong 1; Zheng, Jian 3
刊名	JOURNAL OF BIOBASED MATERIALS AND BIOENERGY
	2019-10
卷号	13 期号:5 页码:670-676
关键词	Anaerobic Fermentation Cellulase Agricultural Wastes Ethanol Fermentation Methane Fermentation
ISSN号	1556-6560
DOI	10.1166/jbmb.2019.1896
英文摘要	To study how different concentrations of cellulase affect the ethanol yields and the gas-production characteristics of anaerobic fermentation using the residues from the ethanol fermentation process, in a moderate temperature (37 +/- 0.2 degrees C) condition, employing a small anaerobic fermentation equipment (a sequencing batch reactor) made in our laboratory, a series of 50 d long anaerobic fermentation experiments were carried out by using cellulase with different concentrations (0.15 g/L, 0.30 g/L and 0.45 g/L). Our results indicate that cellulase concentration is an important parameter for the ethanol fermentation of corn stalks. When the cellulase concentration was 0.30 g/L, the ethanol yield reached a maximum of 39.04 g, and the anaerobic fermentation using the corn stalk residues showed the peak gas production at, as early as, 3 d. Moreover, with this concentration, the methane production per volatile solid (VS) was 26.82 mL.g(-1), and the cumulative gas production was the highest among all experiments, reaching 270.01 mL.g(-1), a high value indicating a high gas-production potential. Through mass balance analysis, we revealed that when the cellulase concentration was 0.30 g/L, the removal efficiency of total solids (TS) and VS (59.12% and 79.07%, respectively) were the highest in the bio-conversion process of corn stalks. This study can serve as a reference for the future ethanol fermentation projects using corn stalks.
资助项目	Scientific Research Program - Shaanxi Provincial Education Department[17JS018]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	AMER SCIENTIFIC PUBLISHERS
WOS记录号	WOS:000473063600010
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31550]
专题	能源与动力工程学院
通讯作者	Dong, Haiying
作者单位	1.Shaanxi Univ Technol, Sch Mech Engn, Shaanxi Key Lab Ind Automat, Hanzhong 723001, Peoples R China 2.Lanzhou Jiaotong Univ, Sch New Energy & Power Engn, Lanzhou 730070, Gansu, Peoples R China 3.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhen, Xiaofei,Dong, Haiying,Feng, Rong,et al. Effects of Cellulase Concentration on the Whole Process of Biological Conversion of Corn Stalks[J]. JOURNAL OF BIOBASED MATERIALS AND BIOENERGY,2019,13(5):670-676.
APA	Zhen, Xiaofei,Dong, Haiying,Feng, Rong,&Zheng, Jian.(2019).Effects of Cellulase Concentration on the Whole Process of Biological Conversion of Corn Stalks.JOURNAL OF BIOBASED MATERIALS AND BIOENERGY,13(5),670-676.
MLA	Zhen, Xiaofei,et al."Effects of Cellulase Concentration on the Whole Process of Biological Conversion of Corn Stalks".JOURNAL OF BIOBASED MATERIALS AND BIOENERGY 13.5(2019):670-676.