Title: Study on extraction and stability of potato purple pigment
Abstract: The extraction of potato purple pigment and its physics and chemistry stability were studied.Through orthogonal test,the optimal condition for potato purple pigment extraction was:30℃,time 60min,material-liquid ratio 1:20,80% alcohol.The result of stability showed that,potato purple pigment was sensitive to temperature,it was stable under 30℃ and in the condition of pH 6.The light could destruct its stability.The effects of glucose and sucrose were not very big.The anti-oxidized reducibility of pigment was not very good,specially the oxidative resistance.The effect of metal ion on pigment stability was:the effect of Fe3+ was the biggest,next was Cu2+,K+ and Al3+ were not big.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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