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A comprehensive study of eco-friendly natural pigment and its applications

机译：环保型天然色素及其应用的综合研究

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Actinomycetes, a large group of filamentous bacteria account for 70–80% of secondary metabolites available commercially. The present investigation was undertaken with an aim to identify and characterize pigment from actinomycetes. Actinomycetes were isolated from rhizosphere soil samples collected from different regions of Madhya Pradesh state. Out of 85 actinomycetes, only 5 actinomycetes showed pigment production and based on diffusible pigment production ability one actinomycete ARITM02 was selected. The extraction of pigment was done by solvent extraction method using methanol and purified by TLC and column chromatography. The pigment was characterized by UV–Vis spectroscopy which showed the lamda maximum of 277.44. FTIR spectroscopy suggested various functional groups like amino group, amide group, hydroxide, benzene and lactone group. The Mass spectroscopy and NMR spectroscopy showed that the molecular mass of pigment is 621.7 and molecular formula is C34H43N3O8. The pigment was also tested for Antimicrobial activity against broad spectrum human pathogens, antioxidant test and toxicity test for safe use as a natural colorant in cosmetic, food, pharmaceutical and textile industries. The conclusion of study suggested that this novel pigment could be a versatile natural, safe and multipurpose. Highlights ? This study clearly describes about the characterization of pigment extracted from actinomycete ARITM02 which was isolated from rhizosphere soil. ? The selected isolate showed antimicrobial activity against bacteria, fungi and molds but no activity against dermatophytes. ? The study confirmed the basic biochemical nature of pigment which is similar to previous reported pigments. ? The pigment was characterized by UV–Vis spectroscopy, FTIR spectroscopy, Mass spectroscopy and NMR spectroscopy. ? The natural pigment is tested for Antimicrobial, antioxidant, anticancer and Allergy tests.
机译：放线菌是一大类丝状细菌，占市售次级代谢产物的70-80％。进行本研究的目的是鉴定和表征放线菌中的色素。放线菌是从中央邦不同地区采集的根际土壤样品中分离得到的。在85个放线菌中，只有5个放线菌显示出色素生成，并且基于可扩散的色素产生能力，选择了一个放线菌ARITM02。颜料的提取通过使用甲醇的溶剂提取方法进行，并通过TLC和柱色谱法纯化。通过UV-Vis光谱对颜料进行表征，其λ最大为277.44。 FTIR光谱表明各种官能团如氨基，酰胺基，氢氧化物，苯和内酯基。质谱和NMR光谱表明，颜料的分子量为621.7，分子式为C34H43N3O8。还对该颜料进行了针对广谱人类病原体的抗菌活性测试，抗氧化剂测试和毒性测试，以安全地用作化妆品，食品，制药和纺织工业中的天然着色剂。研究结论表明，这种新型颜料可以是一种通用的天然，安全和多用途的颜料。强调 ？这项研究清楚地描述了从根际土壤中分离到的放线菌ARITM02中提取的色素的特征。 ？选定的分离物显示出对细菌，真菌和霉菌的抗菌活性，但对皮肤真菌没有活性。 ？该研究证实了颜料的基本生化性质，与先前报道的颜料相似。 ？通过UV-Vis光谱，FTIR光谱，质谱和NMR光谱对颜料进行表征。 ？天然色素经过抗微生物，抗氧化剂，抗癌和过敏测试。

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