COFFEE HUSK - AN INEXPENSIVE SUBSTRATE FOR PRODUCTION OF CITRIC-ACID BY ASPERGILLUS-NIGER IN A SOLID-STATE FERMENTATION SYSTEM

被引：45

作者：

SHANKARANAND, VS ^{[1
]}

LONSANE, BK ^{[1
]}

机构：

[1] CENT FOOD TECHNOL RES INST,DEPT MICROBIOL & BIOENGN,MYSORE 570013,KARNATAKA,INDIA

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1994年 / 10卷 / 02期

关键词：

ASPERGILLUS-NIGER; CITRIC ACID; COFFEE HUSK; SOLID-STATE FERMENTATION;

D O I：

10.1007/BF00360879

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：

Aspergillus niger CFTRI 30 produced 1.3 g citric acid/10 g dry coffee husk in 72 h solid-state fermentation when the substrate was moistened with 0.075 M NaOH solution. Production was increased by 17% by adding a mixture of iron, copper and zinc to the medium but enrichment of the moist solid medium with (NH4)2SO4, sucrose or any of four enzymes did not improve production. The production of about 1.5 g citric acid/10 g dry coffee husk at a conversion of 82% (based on sugar consumed) under standardized conditions demonstrates the commercial potential of using the husk in this way.

引用

页码：165 / 168

页数：4

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