BIOSYNTHESIS AND HYDROLYSIS OF POLY(GAMMA-GLUTAMIC ACID) FROM BACILLUS-SUBTILIS IFO3335

被引：193

作者：

GOTO, A ^{[1
]}

KUNIOKA, M ^{[1
]}

机构：

[1] RES INST POLYMERS & TEXT, TSUKUBA, IBARAKI 305, JAPAN

来源：

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY | 1992年 / 56卷 / 07期

关键词：

D O I：

10.1271/bbb.56.1031

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Poly(gamma-glutamic acid) (PGA) production in Bacillus subtilis IFO3335 was studied. When citric acid as a carbon source was added to a glutamic acid medium containing L-glutamic acid and ammonium sulfate, a large amount of pure PGA was produced. On the other hand, when glucose was added to the glutamic acid medium, a by-product was produced, which seemed to be a polysaccharide. Moreover, the mode of hydrolysis was investigated with PGA in aqueous solutions at 80, 100, and 120-degrees-C by monitoring the time-dependent changes in the molecular weights. Hydrolytic degradation of PGA was found to proceed through a random chain scission.

引用

页码：1031 / 1035

页数：5

共 16 条

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