摘要
采用电子舌对不同蜂蜜以及掺入果葡糖浆的蜂蜜样品进行测定,对所获得的数据进行主成分分析、判别因子分析和偏最小二乘回归分析。结果表明：电子舌能够区分不同蜂蜜样品和掺假蜂蜜样品（果葡糖浆掺入比例≥5%）;对掺假蜂蜜样品建立了偏最小二乘回归分析预测模型,电子舌响应信号和果葡糖浆掺入比例之间有很好的相关性（决定系数R2为0.992 0）,偏最小二乘回归分析模型预测误差均≤5%（掺入比例为10%~70%）。试验证明电子舌可用于掺入果葡糖浆的掺假蜂蜜的识别。
An electronic tongue was used to analyze unadulterated and adulterated honey samples. The response signals were analyzed by principal component analysis （PCA）, discriminant factor analysis （DFA） and partial least-squares analysis （PLS）. The results indica- ted that electronic tongue could recognize unadulterated and adultera- ted boney samples （the adulterated ratio of high fructose syrup was above 5%）. Coefficient of determination between sensors response signals and the ratio of high fructose syrup of PLS model was 0. 992 0. The prediction error of PLS model was within 5% （the a- dulterated ratio of high fructose syrup was between 10% to 70%）. It was proved that electronic tongue could be applied in honey discrimi nation.
出处
《食品与机械》
CSCD
北大核心
2015年第4期68-71,共4页
Food and Machinery
基金
四川省教育厅科研项目(编号:12ZB101)
关键词
电子舌
蜂蜜
果葡糖浆
掺假
electronic tongue
honey
high fructose syrup
adultera- tion
