Mustard oil cake as an inexpensive support for production of chitin deacetylase by Penicillium oxalicum SAE(M)-51 under solid-state fermentation

被引：3
|
作者：
Pareek, Nidhi [1 ]
Ghosh, Sanjoy [1 ]
Singh, R. P. [1 ]
Viyekanand, V. [1 ]
机构：
[1] Indian Inst Technol, Dept Biotechnol, Roorkee 247667, Uttarakhand, India
来源：
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY | 2014年 / 3卷 / 04期
关键词：
Chitin deacetylase; Penicillium oxalicum; Solid state fermentation; Central composite design;
D O I：
10.1016/j.bcab.2014.04.002
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：
Response surface methodology was employed to optimize the cultivation conditions of Penicillium oxalicum SAEM-51 for the enhancement of chitin deacetylase (CDA) production under solid-state fermentation. The enzyme catalyzes deacetylation of N -acetyl glucosamine subunits of chitin resulted in the production of chitosan, widely utilized biopolymer for drug delivery, waste water treatment and as nutraceutics. Among different agro-horticultural substrates evaluated, mustard oil cake had resulted into maximal CDA production. Entrapment of fungal mycelia onto the solid support was studied using scanning electron microscopy. Optimal physico-chemical conditions for maximal CDA production were found to be 4.906g. 73.62% and 8.578% for substrate amount, moisture content and inoculum size, respectively. The experimental CDA production (1162.03 +/- 7.2 U gds(-1)) under optimized condition was observed in close agreement with the values predicted by the quadratic model (1137.85 U gds(-1) The CDA production by P. oxalic -um SAEM-51 was increased significantly by 1.3 fold, as compared to the tin -optimized ones (877.56 +/- 1 8.9 U gds(-1)). (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：212 / 217
页数：6
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