蓝莓果实色度值与化学成分含量的相关性研究  

Correlation analysis of blueberry active ingredient content and its chroma value based on chroma analysis principle

作　　者：刘艺[1] 王圳伊 张晶[1] 鲁宝君 LIU Yi;WANG Zhen-yi;ZHANG Jing;LU Bao-jun(College of Chinese Medicinal Materials,Jilin Agricultural University,Changchun 130118;Hangzhou Minshan Agricultural Industrial Investment Co.,Ltd.,Hangzhou 311604)

机构地区：[1]吉林农业大学中药材学院,长春130118 [2]杭州睦山农实业投资有限公司,杭州311604

出　　处：《中国食品添加剂》2019年第12期189-194,共6页China Food Additives

摘　　要：目的:通过测定蓝莓果实色差值及有效成分花青素、总酚的含量,探讨有效成分含量与颜色值之间的相关性,建立根据色度推测蓝莓花青素及总酚的含量的关系式,为蓝莓的质量评价提供依据。方法:采用分光测色仪测定蓝莓的L*、a*、b*值,并利用福林-酚法检测总酚含量,pH示差法检测花青素含量,对色度与两种化学成分含量间的相关性进行研究。结果:蓝莓果实花青素含量与L*值有显著负相关,相关系数r=0.425,其对应的P值为0.010;与a*值有显著正相关(P <0.05),r=0.367,对应的P值为0.028;b*值与总酚含量的相关系数为0.438,P为0.008,表明有极显著的正相关(P <0.01)。结论:蓝莓色度值与花青素、总酚含量之间具有相关性,利用色度法可以预测主要成分含量,色泽深的蓝莓果实其花青素和总酚含量越高,质量更佳,可为该果实质量评价体系的建立提供参考。Objective;By measuring the color difference of blueberry fruits and the content of anthocyanins and total phenols in active ingredients, and exploring the correlation between the content of active ingredients and color values, a relational formula for estimating the content of anthocyanins and total phenols in blueberries based on chromaticity was established. Therefore, it provides a basis for the quality evaluation of blueberries.Methods;Spectrophotometer was used to measure the L*, a*, and b* values of blueberries, and the total phenol content was measured by the Folin-phenol method, and the anthocyanin content was measured by pH differential method. The correlation between the contents was studied. Results;The anthocyanin content of blueberry fruit was significantly negatively correlated with the L* value, with a correlation coefficient of r = 0.425, which corresponds to a P value of 0.010;a significant positive correlation with the a* value(P < 0.05), and r = 0.367, corresponding to The P value of 0.028 was 0.028;the correlation coefficient between the b* value and the total phenol content was 0.438, and the P value was 0.008, indicating a very significant positive correlation(P < 0.01). Conclusion;There is a correlation between blueberry chroma value and anthocyanin and total phenol content. The colorimetric method can be used to predict the content of main components. The darker blueberry fruit has higher anthocyanin and total phenol content and better quality. It can provide a reference for the establishment of the fruit quality evaluation system.

关 键 词：蓝莓 花青素 总酚 相关性 

分 类 号：TS201.2[轻工技术与工程—食品科学]