Correlation Analysis between Color Change and 5-HMF and Study on Processing Inflection Point in the Plain Stir-Frying Process of White Atractylodes
Objective:To explore correlation analysis between color change and 5-HMF and study on processing inflection point in the plain stir-frying process of white atractylodes.Methods:Plain stir-frying method was used to process white atractyloides,and thin-layer scanner and MATLAB software were used to evaluate the color values of raw and processed white atractyloides.5-HMF content was determined by HPLC,SPSS21.0 software was applied to analyze the correlation between color and 5-HMF content,and regression model was established.Results:Correlation analysis showed that hue H was positively correlated with brightness I,while negatively correlated with oxidation value and 5-HMF content.There was a significant negative correlation between saturation S and brightness I,while significant positive correlation between saturation S and oxidation number.The brightness I was negatively correlated with oxidation value and 5-HMF content.The oxidation number was positively correlated with the content of 5-HMF.The regression model of 5-HMF content and color value was Y(5-HMF)= 24.928-43.398X(H),R2 = 0.908,with high fit degree,and the model is effective.Conclusion:The color of white atractylodes was significantly correlated with the content of 5-HMF in the plain stir-frying process,the content of 5-HMF can be predicted according to its color change during the processing,and the processing inflection point can be analyzed according to the dynamic changes of each index.Therefore,this study provides some reference basis for judging the processing degree of white atractylodes in the process of plain stir-frying.
White atractylodesPlain stir-frying methodColor5-HMFCorrelation
万方数据
维普
