FOOD SCIENCE ›› 2018, Vol. 39 ›› Issue (24): 297-302.doi: 10.7506/spkx1002-6630-201824044

• Safety Detection • Previous Articles     Next Articles

Stereoselective Behavior of flutriafol during strawberry growth and winemaking

LIU Na1, PAN Xinglu2, YANG Qingxi3, ZHANG Shuang3, JI Mingshan3, ZHANG Zhihong1,*   

  1. (1. Liaoning Key Laboratory of Strawberry Breeding and Cultivation, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China; 2. Institute of Plant Protectton, Chinese Academy of Agricultural Sciences, Beijing 100193, China;3. College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China)
  • Online:2018-12-25 Published:2018-12-17

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Abstract: The purpose of this work was to study the enantioselective behavior of chiral pesticide flutriafol during strawberry growth and winemaking. Strawberries were sprayed with flutriafol before harvest to determine the effect of wine processing on flutriafol residues. The enantiomers of flutriafol were separated and determined by ultra-performance convergence chromatography-tandem mass spectrometry (UPCC-MS/MS). The results indicated that no obvious stereoselective behavior was observed for flutriafol enantiomers during strawberry growth. The half-lives of (-)-R-flutriafol and (+)-S-flutriafol were 13.80 and 13.60 d, respectively. (+)-S-Flutriafol degraded faster than (-)-R-flutriafol during the wine fermentation process. The half-lives of (-)-R-flutriafol and (+)-S-flutriafol were 38.06 and 29.90 d for the washed group, and 29.31 and 22.14 d for the unwashed group, respectively.

Key words: flutriafol, stereoselective behavior, strawberry wine, ultra performance convergence chromatography-tandem mass spectrometry (UPCC-MS/MS)

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