华侨大学学报(自然科学版)
華僑大學學報(自然科學版)
화교대학학보(자연과학판)
JOURNAL OF HUAQIAO UNIVERSITY(NATURAL SCIENCE)
2010年
6期
667-670
,共4页
黏质沙雷氏菌%几丁质酶%均匀设计%正交设计
黏質沙雷氏菌%幾丁質酶%均勻設計%正交設計
점질사뢰씨균%궤정질매%균균설계%정교설계
利用均匀设计法,优化一株黏质沙雷氏菌(Serratia marcescens)产几丁质酶培养基的组分;同时,利用正交设计法优化其摇瓶发酵产酶的条件. 研究结果表明,最佳培养基组分(质量分数):0.504%胶体几丁质,1.178%酵母粉,0.025%MgSO4·7H2O,0.095%K2HPO4 ,0.001%FeSO4·7H2O,0.005%山梨醇,0.030%KH2PO4;最佳摇瓶发酵工艺条件:培养时间为48 h,发酵温度为30 ℃,初始pH值为9.0,装液量为30 mL,接种量为1% 在此优化条件下,酶活力可达9.39 μkat·L-1,比未优化的产酶条件下酶活力提高了81.6%.
利用均勻設計法,優化一株黏質沙雷氏菌(Serratia marcescens)產幾丁質酶培養基的組分;同時,利用正交設計法優化其搖瓶髮酵產酶的條件. 研究結果錶明,最佳培養基組分(質量分數):0.504%膠體幾丁質,1.178%酵母粉,0.025%MgSO4·7H2O,0.095%K2HPO4 ,0.001%FeSO4·7H2O,0.005%山梨醇,0.030%KH2PO4;最佳搖瓶髮酵工藝條件:培養時間為48 h,髮酵溫度為30 ℃,初始pH值為9.0,裝液量為30 mL,接種量為1% 在此優化條件下,酶活力可達9.39 μkat·L-1,比未優化的產酶條件下酶活力提高瞭81.6%.
이용균균설계법,우화일주점질사뢰씨균(Serratia marcescens)산궤정질매배양기적조분;동시,이용정교설계법우화기요병발효산매적조건. 연구결과표명,최가배양기조분(질량분수):0.504%효체궤정질,1.178%효모분,0.025%MgSO4·7H2O,0.095%K2HPO4 ,0.001%FeSO4·7H2O,0.005%산리순,0.030%KH2PO4;최가요병발효공예조건:배양시간위48 h,발효온도위30 ℃,초시pH치위9.0,장액량위30 mL,접충량위1% 재차우화조건하,매활력가체9.39 μkat·L-1,비미우화적산매조건하매활력제고료81.6%.