摘要
分析研究了紫苏色素不同ｐＨ条件下及乙醇—水溶液中的色调变化。测定了不同条件下紫苏色素溶液的吸收光谱和亨特（Ｈｕｎｔｅｒ）坐标三参量Ｌａｂ值。结果表明，紫苏色素溶液的最大吸收波长随ｐＨ和乙醇浓度的增加而增大。Ｌａｂ值相应也发生明显的变化。
In this article,the spectrums and Hunter Lab values of Perilla color in acidic and alcohol water solutions were measured.The results showed that the pH value and the concentration of alcohol can influnce the spectrum and Lab value of Perilla color.The maxium absorb wavelength value increased as the pH value and concentration of alcohol increased.Otherwise,the L and b increased but avalue decreased as pH value and concentration of alcohol increased.
出处
《食品工业科技》
CAS
CSCD
北大核心
1998年第6期17-18,共2页
Science and Technology of Food Industry
基金
山东省教委资助项目
关键词
紫苏色素
色调
Lab值
PH值
亨特坐标
Perilla color
anthocyanindin
UV vis spectrun
Hunter Lab value
