College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China; Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, PR China.
College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China.
Food Chem. 2021 Jan 15;335:127566. doi: 10.1016/j.foodchem.2020.127566. Epub 2020 Jul 18.
In this work, we developed an optical colorimetric sensor array for the discrimination of Chinese teas. The sensor array was carefully designed based on tea polyphenol induced indicators displacement assay (IDA), using phenylboronic acids with different substituents as the receptors to polyphenols. The accurate identification for polyphenols with different species or concentrations proved the potential of the sensor array. The sensor array successfully distinguished tea samples within different categories, grades and origins, coupling with PLS-DA. This work offered an efficient and rapid method to distinguish teas and tea-related products. Besides, the assay is supposed to be suitable for the identification of other polyphenol-related natural products.
在这项工作中，我们开发了一种光学比色传感器阵列，用于鉴别中国茶。该传感器阵列是基于茶多酚诱导的指示剂置换分析（IDA）精心设计的，使用具有不同取代基的苯硼酸作为多酚的受体。对不同种类或浓度的多酚进行准确识别证明了传感器阵列的潜力。该传感器阵列成功地区分了不同类别、等级和产地的茶样，与 PLS-DA 相结合。这项工作提供了一种快速有效的方法来区分茶和茶相关产品。此外，该测定法有望适用于其他多酚类相关天然产物的鉴定。
