UNESP - São Paulo State University/Coastal Campus of São Vicente, Laboratory of Bioprospection of Natural Products (LBPN), Pça Infante Dom Henrique S/N, 11330-900 São Vicente, SP, Brazil.
UNESP - São Paulo State University/Coastal Campus of São Vicente, Laboratory of Bioprospection of Natural Products (LBPN), Pça Infante Dom Henrique S/N, 11330-900 São Vicente, SP, Brazil; Department of Biosciences, Federal University of São Paulo (UNIFESP), Silva Jardim Street, 136, Vila Mathias, 11015-020 Santos, SP, Brazil.
Food Res Int. 2018 May;107:314-324. doi: 10.1016/j.foodres.2018.02.031. Epub 2018 Feb 18.
The present study demonstrates the need to conduct an integrative quality control of teas marketed as Plantago major. In the present study, quality control checks were performed through macroscopic, microscopic and chemical analyses of commercial brands. Leaves with parts not allowed for consumption were found in all brands. Six brands showed histological similarity <50% with the authentic P. major. Eight brands demonstrated low chemical similarity (40 to 60%), indicating that they do not have the same compounds from the authentic P. major. All commercial samples are contaminated with aflatoxins, indicative of fungicide contamination and consequent degradation of phenolic compounds and reduction of antioxidant activity from the commercial samples. The difference in the present study is the integrative application of methods for success in the quality control of P. major, which can be applied to other species. Thus, more rigorous inspection actions in the production of teas to guarantee the therapeutic benefit of these products.
本研究表明，有必要对市售车前草进行综合质量控制。在本研究中，通过对商业品牌的宏观、微观和化学分析进行质量控制检查。所有品牌的叶片都发现有不允许食用的部分。有 6 个品牌与正宗车前草的组织学相似度<50%。有 8 个品牌的化学相似度较低（40%至 60%），表明它们与正宗车前草的化合物不同。所有商业样本都受到黄曲霉毒素的污染，表明杀菌剂污染以及随后的酚类化合物降解和商业样本抗氧化活性降低。本研究的不同之处在于综合应用方法成功控制车前草的质量，该方法可应用于其他物种。因此，需要在茶的生产中采取更严格的检查行动，以保证这些产品的治疗效果。
