Black rice pigment soaking mention a stability studying

This experiment takes black rice as raw material,makes use of alcohol to be that the digestion agent picks up black rice pigment.Research on the process of its extraction and its processing conditions,a single factor and orthogonal design to be the best extraction conditions,namely: the volume fraction of 50% ethanol,crushing head 50 degrees,feed water than 1∶5,extraction time 30 min,Baptist reference temperature of 80 ℃,extraction pH 3.At the same time,the stability of black rice pigment studied,results showed that: black rice pigment should be below 80 ℃ in the dark to preserve,KMnO4 and beige on a greater influence has long been known,the black rice pigment should avoid contact with strong oxidizing substances,Vc and citric acid on the role of black rice pigment was not obvious.