2012•Journal of Zhejiang Sci-Tech UniversityRequires access

Extraction of Pigment in Naturally Green Cotton and Spectral Properties Research

Wenlong Zhou

Abstract

For the study of pigment's composition in naturally green cotton,the naturally green cotton is pulverize by a grinder,and fiber powder is extracted in ethanol and extracts is purified by their different solubilities in acid/base solution.The infrared spectrum,UV spectrum are used for analysis the structure of the pigment from extracts.The results show that green cotton pigment is probable of the member of flavonoids according to the physicochemical property of the pigment and the green cotton pigment has 6,7-OH,5-OCH3 in ring A and 3',4'-OH in ring B,in addition 3-OH is possibly substituted.

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Key concepts: Pigment, Extraction (chemistry), Chemistry, Ring (chemistry), Fiber, Composition (language), Botany, Nuclear chemistry