Earticle

초록

영어

The use of thermotolerant fuel ethanol-producing yeast has the advantage in reducing cooling costs, faster fermentation rates, and decreased contamination chances during fermentation. Also high-temperature fermentations may help to make the simultaneous fermentation and ethanol extraction process more suitable for fuel ethanol production. Efforts were made to improve thermotolerance and ethanol production of industrial polyploid yeast Saccharomyces cerevisiae by mutation. The yeast strain had the optimal ethanol production at 30℃. The cells of yeast were treated with UV or NTG at the dosage for 10% survival and improved thermotolerant colonies were isolated. The cells could grow at 43℃ while the original strain could not grow. The ethanol productions of several mutant colonies were examined using yeast-peptone broth containing 23% glucose. The thermotolerant yeast strain were produced more ethanol than the original wild type control strain at 36 and 39℃ by up to 5%~10%. Also the rate of ethanol production by the mutant strains were faster than that by contol strain.

키워드

저자

• You-ri JANG [ Dept. of Bioscience and Biotechnology, The University of Suwon, Gyeonggi-do 445-743, Korea. ]
• Young-hoon LIM [ Dept. of Bioscience and Biotechnology, The University of Suwon, Gyeonggi-do 445-743, Korea. ]
• Ji-sung LIM [ Dept. of Bioscience and Biotechnology, The University of Suwon, Gyeonggi-do 445-743, Korea. ]
• Keun KIM [ Dept. of Bioscience and Biotechnology, The University of Suwon, Gyeonggi-do 445-743, Korea. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576