2011•Journal of Inner Mongolia Agricultural UniversityRequires access
STUDIED ON EXTRACTION AND STABILITY OF BLACK RICE PIGMENTS.
Yang Jie
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Abstract
This assay studied on extraction and stability of black rice purple pigment.After exploring experimental condition of extraction—selection of resolver of soaking the black rice 、selection of how much volume of the black rice pigment 、selection of how long we should soak the black rice,selection of whether adds the acid or not in soaking black rice,selection of how many black rice we use 、selection of suitable temperature and suitable time of extraction choice,conclusion is that before soaking for 1 day with the 300ml 95% ethyl alcohol,the black rice should grind with 100 item of screens,and with 45℃,the 0.08Mp condition using the revolving evaporation mechine reduced pressure distillation,then using benzine carries on the distillation and gets black rice pigment.And have the research of black rice pigment's effect and the stability of pH,the organic acid,the metal salt,the heat,the light.