Ensilage and Bioconversion of Grape Pomace into Fuel Ethanol

被引：41

作者：

Zheng, Yi ^{[1
]}

Lee, Christopher ^{[1
,2
]}

Yu, Chaowei ^{[1
]}

Cheng, Yu-Shen ^{[1
,3
]}

Simmons, Christopher W. ^{[1
]}

Zhang, Ruihong ^{[1
]}

Jenkins, Bryan M. ^{[1
]}

VanderGheynst, Jean S. ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA

[2] Penn State Univ, Dept Chem Engn, State Coll, PA 16802 USA

[3] Natl Yunlin Univ Sci & Technol, Yunlin 64002, Taiwan

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2012年 / 60卷 / 44期

关键词：

bioethanol; dilute acid pretreatment; ensilage; grape pomace; CHEMICAL-COMPOSITION; DEGRADABILITY; DIGESTIBILITY; SILAGE;

D O I：

10.1021/jf303509v

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Two types of grape pomace were ensiled with eight strains of lactic acid bacteria (LAB). Both fresh grape pomace (FrGP) and fermented grape pomace (FeGP) were preserved through alcoholic fermentation but not malolactic conversion. Water leaching prior to storage was used to reduce water-soluble carbohydrates and ethanol from FrGP and FeGP, respectively, to increase malolactic conversion. Leached FeGP had spoilage after 28 days of ensilage, whereas FrGP was preserved. Dilute acid pretreatment was examined for increasing the conversion of pomace to ethanol via Escherichia coli KO11 fermentation. Dilute acid pretreatment doubled the ethanol yield from FeGP, but it did not improve the ethanol yield from FrGP. The ethanol yields from raw pomace were nearly double the yields from the ensiled pomace. For this reason, the recovery of ethanol produced during winemaking from FeGP and ethanol produced during storage of FrGP is critical for the economical conversion of grape pomace to biofuel.

引用

页码：11128 / 11134

页数：7

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