Studies on degradation and final residue of the bionic fungicide 2-allyphenol in strawberry fruit by HPLC method
Yuanyuan Xia, Zhaoli Meng and Jianqiang Li
Abstracts of 27th International Horticultural Congress & Exhibition (IHC 2006), August 13-19, 2006, COEX (Convention & Exhibition), Seoul, Korea. 494 pages.
2006
บทคัดย่อ
The degradation and residue of bionic fungicide 2-allyphenol in the strawberry fruit was studied by means of a high-performance liquid chromatography (HPLC) method.The results showed that residue of 2-allyphenol were extracted from strawberry using an extraction with acetone, purification by liquid-liquid partition, concentrating to a small volume and then determination by HPLC with ultraviolet detection at 273 nm.The equation of the calibration curves was Y=1004.9X-4439.5, (R2=0.997).The minimum detectable amount of 2-allyphenol was 4.2 ng, the minimum detectable concentration of 2-allyphenol in the sample of strawberry was 0.02 mg/kg.The average recoveries and coefficient of variation of the method were 79.41%-83.52% and 1.19%-2.25%, respectively.The degradation and final residue in strawberry were determined with the method described above.The results indicated that the half-life of 2-allyphenol in strawberry was 4.4 days and 2-allyphenol in strawberry fruit was degraded more than 90% before harvesting.