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Grape marc as a sou...
Grape marc as a source of carbohydrates for bioethanol : Chemical composition, pre-treatment and saccharification.
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Corbin, Kendall R. (författare)
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- Hsieh, Yves S. Y. (författare)
- University of Adelaide, Australia
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Betts, Natalie S. (författare)
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Byrt, Caitlin S. (författare)
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Henderson, Marilyn (författare)
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Stork, Jozsef (författare)
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DeBolt, Seth (författare)
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Fincher, Geoffrey B. (författare)
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Burton, Rachel A. (författare)
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(creator_code:org_t)
- Elsevier, 2015
- 2015
- Engelska.
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Ingår i: Bioresource Technology. - : Elsevier. - 0960-8524 .- 1873-2976. ; 193, s. 76-83
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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 0.5M 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.
Ämnesord
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Förnyelsebar bioenergi (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Renewable Bioenergy Research (hsv//eng)
Nyckelord
- Bioethanol
- Grape marc
- Polysaccharide
- Pre-treatment
- Saccharification
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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