CAJ | 학술논문

为探讨唑虫酰胺茶园使用安全性，在福安福云6号绿茶品种茶园开展残留消解动态试验。结果表明，在54～270 g · hm-2施用剂量下，原始附着量和原始残留量随施用剂量的提高线性增加，烘干不能使残留消解；在108、162、216 g · hm -2等推荐使用剂量下，5月份时唑虫酰胺在茶树上的原始残留量高达33.73～67.58 mg · kg -1，降解速度较慢，药后10 d的残留量方低于20 mg · kg -1；在茶园的消解规律符合一级动力学方程，半衰期长达4.02～5.00 d；同一使用剂量在不同季节施药后的残留量有较大差异，9月份的原始残留量显著高于5月份。研究认为唑虫酰胺在茶园使用的食品安全性较低，对于国内市场，建议在茶叶上的残留限量暂定为20 mg · kg -1，安全间隔期15 d。
위탐토서충선알다완사용안전성，재복안복운6호록다품충다완개전잔류소해동태시험。결과표명，재54～270 g · hm-2시용제량하，원시부착량화원시잔류량수시용제량적제고선성증가，홍간불능사잔류소해；재108、162、216 g · hm -2등추천사용제량하，5월빈시서충선알재다수상적원시잔류량고체33.73～67.58 mg · kg -1，강해속도교만，약후10 d적잔류량방저우20 mg · kg -1；재다완적소해규률부합일급동역학방정，반쇠기장체4.02～5.00 d；동일사용제량재불동계절시약후적잔류량유교대차이，9월빈적원시잔류량현저고우5월빈。연구인위서충선알재다완사용적식품안전성교저，대우국내시장，건의재다협상적잔류한량잠정위20 mg · kg -1，안전간격기15 d。
Degradation dynamics and food safety of residual Tolfenpyrad in the tea ,Fuyun 6 (Camellia sinensis ) , were studied in a field test in Fu′an ,Fujian . The results showed that the residue concentrations in both fresh and baked tea leaves increased linearly with Tolfenpyrad applications in the concentrations of 54 -270 g · hm-2 ,and that the residues did not degrade significantly during the baking process . When the recommended application concentrations of Tolfenpyrad at 108 ,162 ,or 216 g · hm -2 for the month of May was applied ,the initial residues ranged from 33.73 mg · kg -1 to 67.58 mg · kg -1 ,and reduced to 20 mg · kg -1 after 10 days . It fitted the first-order kinetics ,with a T1/2 ranging from 4.02 d to 5.00 d . The residue level in teas was found significantly lower in May than September during a year . The current safe application requirement on Tolfenpyrad was low . For the domestic market ,the MRL was recommended to be 20 mg · kg -1 ,and a pre-harvest time ,15 d .