思州牌文旦柚果实品质和农药残留的分析

Analysis of fruit quality and pesticide residue of “Sizhou” pomelo

贵州省岑巩县利用独特的气候和土壤条件大力发展绿色或无公害思州牌文旦柚。对岑巩县3个生产性果园的文旦柚果实品质和农药残留进行了测定及分析,结果表明,3个果园的柚果除在单果质量、果皮的色度值、果肉的还原糖和维生素C含量有明显差异外,在果形指数、果皮厚、可食率、果皮的酚类和类黄酮含量、果肉的可溶性固形物和总酸含量等指标相似;重金属元素、有机磷农药、拟除虫菊酯类农药、抗蚜威等17种农药残留均未超标,检测项目指标均合格。表明3个果园的文旦柚果实品质良好,农药残留符合标准。

Fruit quality and pesticides residue of ＂Sizhou＂ pomelo （Citrus grandis） from three commercial orchards in Cengong county, Guizhou province was investigated and analyzed. The results showed that, the single fruit weight, contents of reducing sugar and Vitamin C in pulp and color value in pericarp had significant differences among fruits from the three orchards, but the other parameters such as index of fruit shape, thickness of pericarp, edible rate, contents of flavonoid and total phenolics in pericarp, contents of total soluble solid and total acidity in pulp were similar. The residues of 17 pesticides including luxury heavy metals, organophosphorus and pyrethroids pesticides in pulp of pomelo fruits were not above the standard. Sizhou pomelo fruit in three orchards＂ were in line with the standards of green fruit or pollution-free fruit.