adaiagua
幼苗
共回答了21个问题采纳率:90.5% 举报
Abstract:This article discussed maximum absorption wavelength of purple sweet potato pigment, the best extraction solvent, extraction time and temperature by single factor test.And purple sweet potato pigment stability were studied. The optimum conditions of extraction were obtained as follows: maximum absorption wavelength was 530 nm、the best extraction solvent was Citric acid、solid-liquid ratio was1:10、time was 60 min、temperature was 60℃.
Stability study shows that the color and stability of pigment could be impacted by pH value, more stable at acidic; It had a strong light resistance.Restore the ability of resistance was strong than to oxidation .
Key words: purple sweet potato pigment; optimum extraction conditions; stability
1年前
3