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首页> 外文期刊>International Biodeterioration & Biodegradation >Utilization of of agro-industrial waste for the production of yellowish-orange pigment from Chryseobacterium artocarpi CECT 8497
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Utilization of of agro-industrial waste for the production of yellowish-orange pigment from Chryseobacterium artocarpi CECT 8497

机译：利用农业工业废料从面包果水晶杆菌生产微橘黄色颜料CECT 8497

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摘要

Bacterial pigments showed potential in various applications but the pigment production is limited due to high cost. This study reports on the optimization of yellowish-orange pigment production by Chryseobacterium artocarpi CELT 8497 in liquid pineapple waste medium using response surface methodology (RSM). Culture conditions affecting pigment production were optimized statistically in shake flask experiments. Liquid pineapple waste (LPW), L-tryptophan and potassium phosphate (KH2PO4) were the most significant variables affecting pigment production. Central composite design (CCD) and RSM analysis were adopted to investigate the interactions between variables and determine the optimal values for maximum pigment production. Evaluation of the experimental results signified that the optimum conditions for maximum production of pigment (152 mg l(-1)) in shake flasks were LPW 20% (v/v), L-tryptophan 125 g l(1) and KH2PO4 12.5 g l(-1). Production under optimized conditions is 3- folds higher than its production in nutrient broth. High pigment production was observed in 51(540 +/- 14 mg l(-1)) and 50 1 (200 +/- 28 mg l(-1)) bioreactor under these optimized conditions. Two compounds from yellowish orange pigment extracted from LPW were isolated and characterized using chromatography, ESI-MS and ATR techniques. Results showed that statistical optimization of medium composition influenced the yellowish-orange pigment production from C artocarpi CELT 8497. The pigment was incorporated as natural colorant in soap making. Also, this is the first report optimizing the process parameters for yellowish-orange pigment production from C. artocarpi CECT 8497 in liquid pineapple waste. (C) 2016 Elsevier Ltd. All rights reserved.
机译：细菌颜料在各种应用中都显示出潜力，但是由于成本高，颜料的生产受到限制。这项研究报告了使用响应面分析法（RSM）优化了菠萝蛋白酶在液体菠萝废料培养基中产黄橘色素CELT 8497的淡黄色颜料的生产。在摇瓶实验中统计优化影响色素生成的培养条件。液体菠萝废料（LPW），L-色氨酸和磷酸钾（KH2PO4）是影响色素生成的最重要变量。采用中央复合设计（CCD）和RSM分析来研究变量之间的相互作用，并确定最大颜料产量的最佳值。对实验结果的评估表明，摇瓶中色素最大产量（152 mg l（-1））的最佳条件是LPW 20％（v / v），L-色氨酸125 gl（1）和KH2PO4 12.5 gl（ -1）。在优化条件下的产量比其在营养肉汤中的产量高3倍。在这些优化条件下，在51（540 +/- 14 mg l（-1））和50 1（200 +/- 28 mg l（-1））生物反应器中观察到高颜料产量。从色谱法提取的黄橙色颜料中分离出两种化合物，并使用色谱，ESI-MS和ATR技术进行了表征。结果表明，培养基成分的统计优化影响了面包果CELT 8497产生的橙黄色颜料。该颜料作为天然着色剂掺入肥皂制造中。此外，这是第一个针对液体菠萝废料中由C. artocarpi CECT 8497生产橙黄色颜料的工艺参数进行优化的报告。 （C）2016 Elsevier Ltd.保留所有权利。

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