Grape marc as a source of carbohydrates for bioethanol: Chemical composition, pre-treatment and saccharification

被引：114
作者：
Corbin, Kendall R. [1 ]
Hsieh, Yves S. Y. [1 ]
Betts, Natalie S. [1 ]
Byrt, Caitlin S. [1 ,2 ]
Henderson, Marilyn [1 ]
Stork, Jozsef [3 ]
DeBolt, Seth [3 ]
Fincher, Geoffrey B. [1 ]
Burton, Rachel A. [1 ]
机构：
[1] Univ Adelaide, Ctr Excellence Plant Cell Walls, Sch Agr Food & Wine, Australian Res Council, Glen Osmond, SA 5064, Australia
[2] Univ Adelaide, Ctr Excellence Plant Energy Biol, Australian Res Council, Glen Osmond, SA 5064, Australia
[3] Univ Kentucky, Dept Hort, Agr Sci Ctr North, Plant Physiol, Lexington, KY 40546 USA
来源：
BIORESOURCE TECHNOLOGY | 2015年 / 193卷
基金：
澳大利亚研究理事会; 美国国家科学基金会;
关键词：
Bioethanol; Grape marc; Polysaccharide; Pre-treatment; Saccharification; STRUCTURAL-CHARACTERIZATION; VITIS-VINIFERA; BARLEY STRAW; CELL-WALLS; CELLULOSE; POLYSACCHARIDES; CONVERSION; RESIDUES; BERRIES; BIOMASS;
D O I：
10.1016/j.biortech.2015.06.030
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Global grape production could generate up to 13 Mt/yr of wasted biomass. The compositions of Cabernet Sauvignon (red marc) and Sauvignon Blanc (white marc) were analyzed with a view to using marc as raw material for biofuel production. On a dry weight basis, 31-54% w/w of the grape marc consisted of carbohydrate, of which 47-80% was soluble in aqueous media. Ethanol insoluble residues consisted mainly of polyphenols, pectic polysaccharides, heteroxylans and cellulose. Acid and thermal pre-treatments were investigated for their effects on subsequent cellulose saccharification. A 0.5 M sulfuric acid pre-treatment yielded a 10% increase in the amount of liberated glucose after enzymatic saccharification. The theoretical amount of bioethanol that could be produced by fermentation of grape marc was up to 400 L/t. However, bioethanol from only soluble carbohydrates could yield 270 L/t, leaving a polyphenol enriched fraction that may be used in animal feed or as fertilizer. Crown Copyright (C) 2015 Published by Elsevier Ltd. All rights reserved.
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收藏
页码：76 / 83
页数：8
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