Optimization on HPLC detection and pre-treatment conditions of patulin in fresh apple
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(1. Food College Shihezi University, Shihezi, Xinjiang 832003, China; 2. College of Food Science and Biological Engineering, Tianjin Agricultural University, Tianjin 300384, China; 3. Tianjin Engineering and Technology Research Center of Agricultural Products Processing, Tianjin 300384, China; 4. College of Biotechnology, South China Agricultural University, Guangzhou, Guangdong 510642, China)

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    Abstract:

    A rapid and sensitive method was established for the accurate determination of patulin in fresh apples. Experimental parameters including extraction methods, mobile phase composition and flow rate for HPLC which always affect the sensitivity and analysis efficiency of the method were optimized systemically. The results indicated that solid phase extraction (SPE) techniques using functionalized polystyrene-divinylbenzene column (PEP) exhibited satisfactory recoveries comparing with other extraction methods. Under the optimized chromatographic conditions, patulin could be well separated from other impurities within 4 min, and detected with a wide linear range between 10-25 000 μg/L and a detection limit of 10 μg/L (S/N=3) using acetonitrile/water (90:10, v/v) as mobile phase, 0.8 mL/min as flow rate. The proposed PEP-SPE-HPLC method was further applied to the determination of patulin in fresh apples in the range of 82.42%-95.57%, indicating it might serve as an efficient tool for the accurate quantification of patulin in food samples.

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孙丽华,钱卉苹,李志文,等.鲜食苹果中棒曲霉素HPLC检测及前处理条件的优化[J].食品与机械英文版,2016,32(5):53-57.

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  • Online: March 09,2023
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