蜂蜜还原能力的电化学传感器检测

为了实现蜂蜜抗氧化物还原能力的快速检测，该文提出了一种用电化学传感器来检测3种不同蜜源蜂蜜的还原能力的新方法。试验采用循环伏安法采集蜂蜜样本的电化学响应信号，提取12个特征值进行归一化预处理，然后利用偏最小二乘法（PLS）建立模型进行检测。校正集的相关系数r和交互验证均方根误差（RMSECV）分别为0.9425和0.0433；预测集的相关系数r和预测均方根误差（RMSEP）分别为0.9392和0.0417。研究结果表明，电化学传感器结合偏最小二乘法检测蜂蜜的还原能力的思路是可行的。

Determination of reducing power of honey by electrochemical sensor

In order to realize rapid detection of reducing power of the antioxidants in the honey, the new approach was proposed to predict reducing power of three kinds of different nectariferous honey by electrochemical sensor in this work. Twelve features were extracted from electrochemical signal using cyclic voltammetry and preprocessed by normalization. Partial least square (PLS) model was employed to discriminate reducing power of honey. Experimental results indicated that the optimal model was achieved with r = 0.9425 and RMSECV = 0.0433 in calibration set; and r = 0.9392 and RMSEP = 0.0417 in prediction set. This work shows that electrochemical sensor combined with PLS has a significant potential in detection of reducing power of honey.