EFFICIENT PRODUCTION of LACTIC ACID from DISTILLERS GRAINS HYDROLYSATES by Rhizopus oryzae CICC41411

doi:10.4028/www.scientific.net/AMR.873.689

	EFFICIENT PRODUCTION of LACTIC ACID from DISTILLERS GRAINS HYDROLYSATES by Rhizopus oryzae CICC41411
	Ren, Hai-wei 1,2; Li, Jin-ping 1; Zhang, Yi 2; Li, Zhi-zhong 2
	2014
关键词	Rhizopus oryzae Distiller grains hydrolysates (DGHs) Lactic acid (LA) Reducing sugars
卷号	873
DOI	10.4028/www.scientific.net/AMR.873.689
页码	689-+
英文摘要	Lignocellulosic biomass-derived sugars is considered to be an economically attractive carbohydrate feedstock for large-scale fermentation of bulk chemicals such as lactic acid (LA). The aim of this study was to investigate the possibility of LA production from distillers grains hydrolysates (DGHs) by the Rhizopus oryzae CICC41411 and to optimize the biological conversion of reducing sugar into LA to evaluate the culture conditions. The effects of factors such as nitrogen source, inoculations size, CaCO3 addition, pH value and fermentation time on the lactic acid concentration (LAC) and the reducing sugars utilization rate (RSUR) were researched. The results show that ammonium chloride is the most favorable nitrogen source for LA production by Rhizopus. Oryzae CICC41411, the optimal fermentation conditions are inoculation size of 2.5% seed culture, CaCO3 addition of 80 g.L-1, fermentation time of 96 h and culture pH of 6.0. This study provides an encouraging means of producing LA from lignocellulosic resource such as the low-cost distillers grains.
会议录	EIGHTH CHINA NATIONAL CONFERENCE ON FUNCTIONAL MATERIALS AND APPLICATIONS
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
语种	英语
资助项目	National High-tech Research and Development Projects[2013AA051601] ; National Sci-tech Pillar R & D Program of China[2011BAD15B03] ; Gansu Outstanding Youth Science Fund Project[1210RJDA016] ; Hongliu Exceptional Talent Projects of Lanzhou University of Technology[Q201101] ; Hongliu Project for Young Teachers Cultivation of Lanzhou University of Technology[201207]
WOS研究方向	Materials Science
WOS记录号	WOS:000336337000110
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36661]
专题	生命科学与工程学院能源与动力工程学院
通讯作者	Ren, Hai-wei
作者单位	1.Lanzhou Univ Technol, Western China Energy & Environm Res Ctr, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Life Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Ren, Hai-wei,Li, Jin-ping,Zhang, Yi,et al. EFFICIENT PRODUCTION of LACTIC ACID from DISTILLERS GRAINS HYDROLYSATES by Rhizopus oryzae CICC41411[C]. 见:.