A wild and tolerant yeast suitable for ethanol fermentation from lignocellulose

作者：Kodama Shotaro; Nakanishi Hiroshi; Thalagala Thalagala Arachchige Tharanga Piyamali; Isono Naoto; Hisamatsu Makoto^*

来源：Journal of Bioscience and Bioengineering, 2013, 115(5): 557-561.

DOI：10.1016/j.jbiosc.2012.11.006

• Wild yeast
• Tolerant yeast
• Contamination-free
• Ethanol fermentation
• Lignocellulose

Ethanol fermentation from food wastes containing mainly starch without carrying out sterilization was investigated by using wild and tolerant yeast, Issatchenkia orientalis MF-121. The MF-121 strain is not a suitable choice for ethanol fermentation from lignocellulosic biomass because it is only capable of fermenting hexoses of glucose, mannose, and fructose to ethanol. Therefore, we first isolated acid- and salt-tolerant yeast that are capable of fermenting various monosaccharides to ethanol, and the isolated yeast that showed the ability to ferment ethanol from glucose, mannose, galactose, fructose, and xylose, was identified as Zygoascus hellenicus LK-5G on the basis of the 265 rRNA sequence analysis.

• 出版日期2013-5