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Study on extracting and stability of black pigment produced

Wei Zhi-wen

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Abstract

Study have been performed on extracting and stability of black pigment in different conditions, the pigment was produced by R362 strain. The results showed the maximum absorption peak of the pigment was 390nm, the pigment was stable in alkali, unstable in acid, and highly stable to heat, sunlight and carbohydrate. The pigment was sensitive to H2O2 and Na2SO3. Several metal ions(except Fe3+) showed no harmful effect to the color of the pigment.

About this research paper

What this paper is about

Study have been performed on extracting and stability of black pigment in different conditions, the pigment was produced by R362 strain. The results showed the maximum absorption peak of the pigment was 390nm, the pigment was stable in alkali, unstable in acid, and highly stable to heat, sunlight and carbohydrate. The pigment was sensitive to H2O2 and Na2SO3. Several metal ions(except Fe3+) showed no harmful effect to the color of the pigment.

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Method / approach

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Available abstract

Study have been performed on extracting and stability of black pigment in different conditions, the pigment was produced by R362 strain. The results showed the maximum absorption peak of the pigment was 390nm, the pigment was stable in alkali, unstable in acid, and highly stable to heat, sunlight and carbohydrate. The pigment was sensitive to H2O2 and Na2SO3. Several metal ions(except Fe3+) showed no harmful effect to the color of the pigment.

Key concepts: Pigment, Alkali metal, Chemistry, Metal ions in aqueous solution, Metal, Nuclear chemistry, Materials science, Organic chemistry

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