Detection of Aflatoxin and Ochratoxin A in Spices by High-Performance Liquid Chromatography

真菌毒素 赭曲霉毒素A 胡椒粉 黄曲霉毒素 赭曲霉毒素 污染 食品科学 曲霉 化学 食品污染物 青霉属 高效液相色谱法 生物 色谱法 植物 生态学
作者
Zahra Zareshahrabadi,Robab Bahmyari,Hasti Nouraei,Hossein Khodadadi,Pouyan Mehryar,Fatemeh Asadian,Kamiar Zomorodian
出处
期刊:Journal of Food Quality [Hindawi Publishing Corporation]
卷期号:2020: 1-8 被引量:37
标识
DOI:10.1155/2020/8858889
摘要

Background. Spices are one of the flavoring components of food in the cooking recipes of different nations that are used daily. However, these ingredients may be contaminated by toxicogenic fungi and subsequent production of mycotoxins that cannot be neutralized through cooking. In the present study, the possible contamination of spices by aflatoxins (AFs) and ochratoxin A (OTA) was investigated from Shiraz, the south part of Iran. Materials and Methods. A total of 80 spice samples including turmeric (n = 20), red pepper (n = 20), black pepper (n = 20), and cinnamon (n = 20) were purchased from markets and cultured on appropriate medium. The isolated fungi were identified. Simultaneously, mycotoxins from spices were extracted with immunoaffinity columns (IAC) and the occurrence of AFs (B1 + B2 + G1 + G2) and OTA was then determined using high-performance liquid chromatography (HPLC) with a fluorescence detector (FD). Result. The results depicted that 40 spice samples were contaminated with AFs and 48 samples with OTA. The highest rate of AFs contamination was related to red pepper, in 80% of which the amount of contamination was excessive than the standard level (>10 μg/kg). All black pepper samples were determined to be contaminated with OTA at over legislation limits of >15 μg/kg. Aspergillus species were the predominant isolated fungi, followed by Penicillium, and Mucor species. Discussion. Regarding the high mycotoxins contamination in spices in the current study, regular effective surveillance and quality control procedures are highly recommended. To achieve this goal, it is necessary to empower food-related laboratories with precise methods of isolation and detection of mycotoxins.
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