Production of bioethanol and associated by-products from potato starch residue stream by Saccharomyces cerevisiae
Production of bioethanol and associated by-products from potato starch residue stream by Saccharomyces cerevisiae
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DOI：
10.1016/j.biombioe.2010.02.003
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发表时间：
2010-07-01
影响因子：
6
通讯作者：
Darwish, Soumia M. I.
中科院分区：
文献类型：
--
作者：
Hashem, Mohamed;Darwish, Soumia M. I.
马铃薯淀粉渣流在芯片制造过程中产生的被用作生物质和生物乙醇生产的酿酒酵母的经济来源。结果表明，1%的H（2）SO（4）在100 ℃下持续1小时足以水解残留物流中包含的所有淀粉。两株S.酿酒酵母（Y-1646和商业酵母）能够在需氧和半厌氧条件下利用和发酵酸处理的残余物流。在35 ℃时，S.当加入ZnCl（2）（0.4 g L（-1））时，36 h后，酿酒酵母y-1646的细胞中的细胞数增加。添加NH 4 NO3作为氮源对S.酿酒酵母Y-1646。乙醇生产过程中会产生醇类衍生物、医药活性物质等副产物。(C)2010爱思唯尔有限公司保留所有权利。
Potato starch residue stream produced during chips manufacturing was used as an economical source for biomass and bioethanol production by Saccharomyces cerevisiae. Results demonstrated that 1% H(2)SO(4) at 100 degrees C for 1 h was enough to hydrolyze all starch contained in the residue stream. Two strains of S. cerevisiae (y-1646 and commercial one) were able to utilize and ferment the acid-treated residue stream under both aerobic and semi-anaerobic conditions. The maximum yield of ethanol (5.52 g L(-1)) was achieved at 35 degrees C by S. cerevisiae y-1646 after 36 h when ZnCl(2) (0.4 g L(-1)) was added. Addition of NH(4)NO(3) as a source of nitrogen did not significantly affect either growth or ethanol production by S. cerevisiae y-1646. Some secondary by-products including alcohol derivatives and medical active compound were found to be associated with the ethanol production process. (C) 2010 Elsevier Ltd. All rights reserved.