A New Temperature Control Shifting Strategy for Enhanced Triterpene Production by Ganoderma lucidum G0119 Based on Submerged Liquid Fermentation
文献类型: 外文期刊
第一作者: Feng, Jie
作者: Feng, Jie;Feng, Na;Zhang, Jing-Song;Yang, Yan;Jia, Wei;Lin, Chi-Chung;Feng, Jie;Feng, Na;Zhang, Jing-Song;Yang, Yan;Jia, Wei;Lin, Chi-Chung;Feng, Jie;Feng, Na;Zhang, Jing-Song;Yang, Yan;Jia, Wei;Lin, Chi-Chung
作者机构:
关键词: Ganoderma lucidum;Mycelium;Triterpenes;Kinetics model;Temperature-shifting strategy
期刊名称:APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY ( 影响因子:2.926; 五年影响因子:2.685 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Temperature control is a very important factor on triterpene productivity in submerged liquid fermentation. Temperature effects from 23 to 32 A degrees C on triterpene production by Ganoderma lucidum G0119 were investigated in 6-L stirred fermentor. Logistic and Luedeking-Piret equations were used to estimate the mycelial growth and triterpene production kinetics by regression analysis. On that basis, a temperature-shifting fermentation control strategy was established. From 0 to 61 h, culturing was performed at 32 A degrees C to get high specific mycelial growth rate. Between 62 and 127 h, the temperature was decreased stepwise from 31 to 30 A degrees C to maintain high triterpene productivity. After 128 h, temperature was maintained at 29 A degrees C to minimize triterpene production inhibition and sustain high productivity. Elevated triterpene level (0.269 g L-1), yield (0.0101 g g(-1)), and productivity (0.00207 g (L h)(-1)) were achieved representing 27.32, 13.94, and 37.11 % higher than submerged liquid fermentation at constant temperature of 29 A degrees C, respectively, feasible for the industrial scale.
分类号: Q5
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