A study on strain improvement by protoplast fusion between amylase secreting yeast and alcohol fermenting yeast - IV. Alcohol and pullulanase productivities of fusant between S. diastaticus and C. tropicalis -

Amylase분비효모와 alcohol 발효효모의 세포융합에 의한 균주의 개발 - 제4보. S. diastaticus와 C. tropicalis 간의 융합체의 pullulanase생성 및 alcohol발효 -

  • 서정훈 (경북대학교 자연과학대학 미생물학과) ;
  • 김영호 (경북대학교 자연과학대학 미생물학과) ;
  • 홍순덕 (경북대학교 자연과학대학 미생물학과) ;
  • 권택규 (경북대학교 자연과학대학 미생물학과)
  • Published : 1986.10.01


The activity of glucoamylase and pullulanase, properties of glucoamylase and ethanol productivities of fusants were studied. Glucoamylase and pullulanase activity of fusants were higher than parents. The optimal pH and temperature of glucoamylase of fusants were very similar to the those produced by S. diastaticus. In alcohol fermentation. fermenting ability and fermentation rate of fusants were higher and faster than either of its parental strain. The maximum of alcohol yield in 15% of liquefied potato starch was 7.8% (v/v)


S. diastaticus;C. tropiculis;pullulanase;alcohol fermentation