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.

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。