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Mycotoxins in herbal teas marketed in Latvia and dietary exposure assessment.
Food Additives & Contaminants: Part B ( IF 2.5 ) Pub Date : 2019-04-09 , DOI: 10.1080/19393210.2019.1597927
I Reinholds 1 , E Bogdanova 1, 2 , I Pugajeva 1 , V Bartkevics 1, 2
Affiliation  

The occurrence of 12 mycotoxins has been analysed by liquid chromatography – time of flight mass spectrometry in the batch of 60 herbal teas purchased from drugstores in Latvia. Among the dry tea samples, 90% were positive for one to eight mycotoxins. Enniatin B and deoxynivalenol (DON) were the most frequently detected mycotoxins in 55% and 45% of the samples, respectively. DON reached the highest level, from 129 µg kg−1 in herbal blend to 5,463 µg kg−1 in wormwood tea. Ochratoxin A (OTA) and aflatoxin B1 (AFB1) were found in 10% and 20% of the samples at the concentrations ranged between 2.99–30.3 µg kg−1 and 3.40–23.7 µg kg−1. Studies of the tea infusion process indicated that 32–100% of DON and zearalenone present in dry teas were extracted into the infusions. Dietary exposure assessment was performed, using the determined mycotoxin levels and the available consumption data.



中文翻译:

拉脱维亚销售的凉茶中的霉菌毒素和膳食暴露评估。

通过液相色谱-飞行时间质谱法分析了从拉脱维亚的药店购买的60批次凉茶中12种霉菌毒素的存在。在干茶样品中,90%的真菌毒素为1至8种。Enniatin B和deoxynivalenol(DON)分别是55%和45%样本中最常检测到的霉菌毒素。DON含量最高,从草药混合物中的129 µg kg -1到艾草茶中的5,463 µg kg -1。在10%和20%的样品中发现曲霉毒素A(OTA)和黄曲霉毒素B 1(AFB 1)的浓度范围为2.99–30.3 µg kg -1至3.40–23.7 µg kg -1。对茶的浸泡过程的研究表明,干茶中存在的DON和玉米赤霉烯酮32–100%被提取到浸泡物中。使用确定的霉菌毒素水平和可用的消耗量数据进行饮食暴露评估。

更新日期:2019-04-09
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