EFFECT OF DISSOLVED-OXYGEN CONCENTRATION AND IMPELLER TIP SPEED ON ITACONIC ACID PRODUCTION BY ASPERGILLUS-TERREUS

被引：37

作者：

PARK, YS ^{[1
]}

OHTA, N ^{[1
]}

OKABE, M ^{[1
]}

机构：

[1] SHIZUOKA UNIV,FAC AGR,DEPT APPL BIOL CHEM,BIOCHEM ENGN LAB,836 OHYA,OYA,SHIZUOKA 422,JAPAN

来源：

BIOTECHNOLOGY LETTERS | 1993年 / 15卷 / 06期

关键词：

D O I：

10.1007/BF00138544

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Effect of aeration rate and impeller tip speed on mucelium growth and itaconic acid production was investigated in a batch culture of Aspergillus terreus IFO-6365. When impeller tip speed was 94.2 cm/sec at a fixed aeration rate of 0.5 vvm, itaconic acid concentration was 3.6 and 1.6 times higher than those in the impeller tip speed of 62.8 and 125.7 cm/sec, respectively. When an oxygen-enriched air was supplied at a fixed impeller tip speed of 94.2 cm/sec and dissolved oxygen concentration was maintained in the 20-60% range, both itaconic acid concentration and mycelium growth were not affected by the dissolved oxygen concentration.

引用

页码：583 / 586

页数：4

共 6 条

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