期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 176, 期 1-3, 页码 503-509出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2009.11.058
关键词
Biodegradation; GC-MS; Kocuria rosea; Methyl orange; Toxicity study
资金
- National Science Council, Taiwan
Kocuria rosea (MTCC 1532) showed 100% decolorization of methyl orange (50 mg l(-1)) under static condition. The optimum pH and temperature for dye decolorization was 6.8 and 30 degrees C, respectively. The K rosea. (MTCC 1532) showed maximum decolorization of methyl orange when growth medium containing yeast extract as compared to other substrates. The culture exhibited significant ability to decolorize repeated additions of dye, with reduction in time up to 12 h at eighth dye aliquot addition. Significant induction of reductases (NADH-DCIP reductase and azoreductase) suggests its involvement in decolorization of methyl orange. The metabolites formed after decolorization of methyl orange, such as 4-amino sulfonic acid and N,N'-dimethyl p-pheny[diamine were characterized using FTIR and MS. Phytotoxicity and microbial toxicity study showed the methyl orange was toxic and metabolites obtained after its decolorization was nontoxic for experimental plants (Triticum aestivum and Phaseolus mungo) and bacteria (K rosea., Pseudomonas aurugenosa and Azatobacter vinelandii). (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据