| Registro completo |
| Provedor de dados: |
OAK
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| País: |
Japan
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| Título: |
Enzymatic Hydrolysis and Ethanol Fermentation of By-Products from Potato Processing Plants
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| Autores: |
YAMADA, Sunao
SHINOMIYA, Noriyuki
OHBA, Kiyoshi
SEKIKAWA, Mitsuo
ODA, Yuji
関川, 三男
小田, 有二
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| Data: |
2009
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| Ano: |
2009
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| Palavras-chave: |
Potato peel
Substandard mash
Ethanol
Fermentation
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| Resumo: |
By-products from potato processing plants were liquefied and partially saccharified using three commercially available enzymes, followed by ethanol fermentation by yeast and then hydrolysis by glucoamylase. From 12% (w/w) of fresh potato peel, about 20 mg/mL ethanol was formed in the supernatant via amylase, pectinase, or an enzyme complex; this yield was slightly increased with combinations of these enzymes. Supplementation of substandard mash to potato peel (1:1) as a raw material enhanced the amount of ethanol formation, increasing it to approximately 50 mg/mL by the mixture of all three enzymes. After the addition of yeast and glucoamylase to the partially saccharified material, ethanol formation proceeded gradually and slowed in 12 h with the consumption of fermentable sugars. Galacturonic acid derived from pectin was not fermented and remained in the fermented broth. In the by-products, the conversion rate of sugars to ethanol was estimated to be 42.5%.
http://www.jstage.jst.go.jp/article/fstr/15/6/15_653/_article/-char/ja/
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| Idioma: |
Inglês
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| Identificador: |
http://ir.obihiro.ac.jp/dspace/handle/10322/2962
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| Editor: |
日本食品科学工学会
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| Formato: |
application/pdf
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| Direitos: |
日本食品科学工学会
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