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2007•Journal of Xi'an University of Engineering Science and TechnologyRequires access

The spectral analysis of pigment extraction in naturally colored cotton

GU Yan-cai

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Abstract

In this paper,the test of the spectral analysis of pigment extraction in naturally colored cotton is carried.The pigment in mature naturally colored cotton fibers is extracted by solvent and nitrate / ethanol(1∶4).The results of UV spectral analysis shows that the pigment extracted from brown fiber belonged to flavone with two adjacent hydroxide groups in B ring,and that from the green fiber contained not only flavone but also flavonols with two adjacent hydroxide groups both in A ring and B ring.

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What this paper is about

In this paper,the test of the spectral analysis of pigment extraction in naturally colored cotton is carried.The pigment in mature naturally colored cotton fibers is extracted by solvent and nitrate / ethanol(1∶4).The results of UV spectral analysis shows that the pigment extracted from brown fiber belonged to flavone with two adjacent hydroxide groups in B ring,and that from the green fiber contained not only flavone but also flavonols with two adjacent hydroxide groups both in A ring and B ring.

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Available abstract

In this paper,the test of the spectral analysis of pigment extraction in naturally colored cotton is carried.The pigment in mature naturally colored cotton fibers is extracted by solvent and nitrate / ethanol(1∶4).The results of UV spectral analysis shows that the pigment extracted from brown fiber belonged to flavone with two adjacent hydroxide groups in B ring,and that from the green fiber contained not only flavone but also flavonols with two adjacent hydroxide groups both in A ring and B ring.

Key concepts: Pigment, Colored, Extraction (chemistry), Flavonols, Spectral analysis, Chemistry, Fiber, Ring (chemistry)

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