PECTINASE PRODUCTION BY PENICILLIUM-FREQUENTANS

被引：43

作者：

SAID, S

FONSECA, MJV

SIESSERE, V

机构：

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1991年 / 7卷 / 06期

关键词：

EXTRACELLULAR GALACTURONIC ACID; PECTINASE; PENICILLIUM;

D O I：

10.1007/BF00452841

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：

High activities of extracellular pectinase with viscosity-diminishing and reducing groups-releasing activities were produced by Penicillium frequentans after 48 h at 35-degrees-C, in agitated cultures supplemented with 0.5% citrus pectin and initial pH of 2.5. Under these conditions the fungus also produced high activity of pectinesterase. At an initial pH of 7.0 or 8.0, pectin lyase activity was also detected. Enzyme activity releasing reducing sugars was more stable at 50-degrees-C than viscosity-diminishing activity. Both activities were maximal at pH 2.5 to 5.2 and at 55-degrees-C.

引用

页码：607 / 608

页数：2

共 7 条

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