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Studies on Screening,Identification and Fermentation Characters of a Yeast Strain Fermentation Ethanol from Xylose-Glucose / 中国生物工程杂志
China Biotechnology ; (12)2006.
Artigo em Chinês | WPRIM | ID: wpr-686371
ABSTRACT
A model for screening the yeast which can ferment xylose to produce the ethanol was constructed.An ethanol yeast was obtained using the lignocellulose as substrate production the ethanol.By malt extract medium pre-culturing,soil samples use the plate with xylose as sole carbon source as the primary screening,then finally screen by the potassium dichromate color-displaying method.A strain named Y2-3 was screened from the soil.Phenotypic analysis including morphology and physiology and biochemical characteristics and 26D1/D2 sequence analysis were carried out.Based on taxonomy results,the Y2-3 was identified as Pichia caribbica.The strain Y2-3 ferments using xylose as sole carbon source biomass 23.5 g/L,xylose utilization rate 94.7 %,ethanol final yield 4.57 g/L;using mixture sugarbiomass 28.6 g/L,xylose utilization rate 94.2 %,glucose utilization rate 95.6%,ethanol final yield 20.6 g/L.Pichia caribbica is a yeast which can utilize xylose and mixture sugar as substrate.It established the foundation for further research fermentation of ethanol by yeast using lignocellulose.

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Tipo de estudo: Estudo diagnóstico / Estudo prognóstico / Estudo de rastreamento Idioma: Chinês Revista: China Biotechnology Ano de publicação: 2006 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Tipo de estudo: Estudo diagnóstico / Estudo prognóstico / Estudo de rastreamento Idioma: Chinês Revista: China Biotechnology Ano de publicação: 2006 Tipo de documento: Artigo