摘要
研究利用GC-MS检测方法,分析了28个葡萄酒样品中的农药残留量。结果表明,所测样品中农残总量均未超过欧盟对葡萄酒中各农残最大残留量的规定;白葡萄酒农残均值为0.359 mg/L,红葡萄酒(不含有机葡萄)农残均值为0.622 mg/L,有机葡萄酒中农残低于10μg/L;在模拟酿造试验中发现,农药的残留率与其疏水值有关,疏水值最小的甲霜灵的残留率最大,因此,酵母泥中有大量的农药沉积而导致残留量明显增加。酒精发酵后,酵母对部分农药进行了降解或吸附作用而使部分农药残留量下降。
In the experiments, the residual pesticide quantity in 28 grape wine samples was detected by GC-MS. The results showed that, the residual pesticide quantity in all the test samples did not exceed OIV＇s stipulation about the maximum pesticide residue limit in grape wine, and the average residual pesticide quantity in white grape wine, in red grape wine（no organic grape contained）, and in organic grape wine were 0.359 mg/L,0.622 mg/L, and less than 10 μg/L respectively. Simulation brewing test indicated that the residual rate of pesticide was related to its hydrophobic value（metalaxyl with the lowest hydrophobic value had the highest residual rate）. Accordingly, a large amount of pesticide deposition in yeast slurry would evidently increase residual pesticide quantity. After alcoholic fermentation, the degradation and absorption of part of pesticide by yeast would decrease residual pesticide quantity.
出处
《酿酒科技》
北大核心
2014年第7期4-8,共5页
Liquor-Making Science & Technology
基金
国家高技术研究发展计划(863计划)项目号:2013AA102108
关键词
葡萄酒
农药残留
疏水值
分析检测
grape wine
residual pesticide
hydrophobic value
analysis and testing
