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

被引：123

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：

美国国家科学基金会; 澳大利亚研究理事会;

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.

引用

页码：76 / 83

页数：8

共 34 条

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