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Study on Extraction Condition and Stability of Pigment in Purple Cabbage

Zhang Gui-ling

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Abstract

Extraction conditionan and physicochemical property of red pigment in purple cabbages were studied in this paper,and the results were as follows.High yields of pigment could be obtained by 40% ethanol solution of pH1 at 80℃ for 30 min with the ratio of 1g∶40 mL(solid-liquid).The red pigment in purple cabbage is anthocyanin,and pH value had significant effect on the pigment within 80℃.High light intensity could accelerate decomposition of the pigment.Metal ions such as Al3+,Ca2+,Zn2+ and Cu2+ had no effect on the pigment color,but Fe3+ had harmful effect.Conventional additives as sucrose,glucose and table salt had no effect on the pigment.

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What this paper is about

Extraction conditionan and physicochemical property of red pigment in purple cabbages were studied in this paper,and the results were as follows.High yields of pigment could be obtained by 40% ethanol solution of pH1 at 80℃ for 30 min with the ratio of 1g∶40 mL(solid-liquid).The red pigment in purple cabbage is anthocyanin,and pH value had significant effect on the pigment within 80℃.High light intensity could accelerate decomposition of the pigment.Metal ions such as Al3+,Ca2+,Zn2+ and Cu2+ had no effect on the pigment color,but Fe3+ had harmful effect.Conventional additives as sucrose,glucose and table salt had no effect on the pigment.

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Available abstract

Extraction conditionan and physicochemical property of red pigment in purple cabbages were studied in this paper,and the results were as follows.High yields of pigment could be obtained by 40% ethanol solution of pH1 at 80℃ for 30 min with the ratio of 1g∶40 mL(solid-liquid).The red pigment in purple cabbage is anthocyanin,and pH value had significant effect on the pigment within 80℃.High light intensity could accelerate decomposition of the pigment.Metal ions such as Al3+,Ca2+,Zn2+ and Cu2+ had no effect on the pigment color,but Fe3+ had harmful effect.Conventional additives as sucrose,glucose and table salt had no effect on the pigment.

Key concepts: Pigment, Chemistry, Anthocyanin, Extraction (chemistry), Sucrose, Salt (chemistry), Botany, Food science

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