期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 59, 期 12, 页码 6360-6368出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf201516f
关键词
mycotoxin; antibodies; immunoassay; Alternaria; food
资金
- Brigitte and Wolfram Gedek-Stiftung (Ismaning, Germany)
This study investigated the production of polyclonal (pAB) antibodies and the first time production of monoclonal (mAB) antibodies against the mycotoxin alternariol, and their implementation in enzyme immunoassay (EIA) for the rapid determination of alternariol in foods. Both EIAs were highly sensitive, with detection limits (IC(20)) of 35 +/- 6.9 pg/mL (mAb EIA) and 59 +/- 16 pg/mL (pAb EIA). Food products (n = 109; apple and tomato products, white wine) from German retail shops were analyzed. At a detection limit of 1-2 mu g/kg, alternariol at 1-13 mu g/kg was found with high frequency in apple (67%) and tomato (93%) products. Tomatoes with visible signs of Alternaria infection, stored at room temperature for up to 4 weeks, contained alternariol at levels up to 50 mg/kg, as determined by ETA and HPLC-FLD. It is concluded that the alternariol immunoassays present a versatile screening tool which could facilitate food control for Alternaria toxins.
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