胶液颜色与阿胶品质的相关性研究

Correlation between colloidal color and gelatin quality of Asini Corii Colla

目的研究胶液颜色与阿胶品质的相关性,快速评价阿胶的品质。方法采用分光测色仪、质构仪测定阿胶的颜色、凝胶强度,考察加热时间对阿胶颜色和凝胶强度的影响,并研究颜色与凝胶性以及成品阿胶块颜色与胶液颜色的相关性。结果阿胶浓缩出胶加热时间应控制在4~5 h,阿胶胶液颜色和凝胶强度相对稳定,且有一定关联性。成品阿胶块颜色值与出胶过程胶液颜色值呈显著的正相关性,阿胶胶液颜色值越小(颜色越深),阿胶胶块颜色值也越小(颜色深)。结论通过测定阿胶出胶过程胶液的颜色估算成品阿胶块颜色,为快速控制阿胶的外观、内在质量提供了定量的依据。

Objective To study the correlation between colloidal color and gelatin quality, so as to provide a fast evaluation of the quality of Asini Corii Colla. Methods The gel strength and color of Asini Corii Colla were measured by Texture Analyser and Spectrophotometer. The effects of heating time on the color and gel strength were studied, and their correlations of color and gelation, and finished gelatin block color and liquid color were studied. Results The heating time of gelatin concentration should be controlled in 4 — 5 h, and the color and gel strength of the gelatin solution were relatively stable and had a certain correlation. There was a significant positive correlation between finished rubber block color value and liquid color. The darker color of gelatin liquid was, the color of the gelatin block was deep. Conclusion The color of finished rubber block can be estimated by color value of glue liquid in the gelatin process which provide as quantitative basis for the rapid control of the appearance and internal quality of Asini Corii Colla.