黑豆种皮红色素的提取及稳定性的研究

Goal]Black soybeans seed shell erythrophyll extraction and stable research.[Method]Take the black soybeans seed shell as raw material, uses the simple hot dipping extraction erythrophyll the method, carries on the pH value, the light, the heat, the oxidant, the reducing agent, the sucrose as well as the partial food additive and metal ion pair its stable influence and the contrast analysis.[Result]Through to the different reagent, the temperature, the time extraction result contrast, has determined the good extraction method, the extractant: Acidic ethyl alcohol; Extraction temperature: 60℃ about; Extraction time: 2h; Extraction rate: 17.36 ﹪ (counts according to black dried bean curd dry weight).[Conclusion]The experiment indicated that,This pigment to the heat, the reducing agent, the sucrose, the sodium benzoate as well as the partial metallic ion is stable, is unstable to the light and the oxidant.This black soybeans erythrophyll security, non-toxic available in food, cosmetics production, is one kind of good natural pigment resources.