摘要
2010年45月,在开封市区主要蔬菜市场随机采集7类32种蔬菜,共62个样品,进行了硝酸盐和亚硝酸盐检测和食用安全性评价.结果表明：叶类蔬菜中硝酸盐的含量较高,平均值497.64 mg·kg-1;其次是豆类、瓜果类和根茎类.叶菜类的荆芥属于中度污染,其余均属轻度污染;不同类别蔬菜硝酸盐含量高低依次是叶菜类〉葱蒜类〉豆类〉食用菌类〉茄果类〉根菜类〉瓜果类.蔬菜样品中亚硝酸盐含量最高值是4.07 mg·kg-1,平均含量高低依次是豆类〉葱蒜类〉茄果类〉根菜类〉瓜菜类〉叶菜类〉食用菌类.除了茄果类成熟的红泡椒外,其他样品的亚硝酸盐含量都不超标.与其他城市市售蔬菜相比较,开封市市售蔬菜亚硝酸盐含量偏高.
Content of nitrate nitrogen and nitrite nitrogen of 32 kinds of vegetables, Class 7, a total of62 samples were collected randomly in the main vegetable market of Kaifeng city in April - May 2010. Thenitrate and nitrite content were measured and food risk has Benn evaluated. The results showed that leafyvegetables with higher content of nitrate, the average is 497.64 mg · kg-i, followed by beans melons androot vegetables. The Nepeta leafy vegetables was moderately polluted, and the rest were slightly polluted,the level of nitrate content in vegetables sample is in order, leaf vegetables 〉 onion garlic class 〉 legumevegetables 〉 edible fungi vegetables 〉 egg plant vegetables 〉 root Class 〉 melon vegetables. The highestnitrite content of Vegetables is 4.07 mg· kg-1, the order of the average content of nitrite was legumeVegetables 〉 onion garlic class 〉 egg plant vegetablesedible fungi vegetables. The nitrite content of the all〉 root class 〉 melon vegetables 〉 leaf vegetables 〉samples the other samples were not excessive theNational standard（ GB18406. 1 -2001 ）, except the mature red robe pepper Solanaceae. Comparing thecontent of nitrate and nitrite with those of other cities, the content of nitrite in vegetables in Kaifeng Citywere higher.
出处
《哈尔滨师范大学自然科学学报》
CAS
2015年第3期122-128,共7页
Natural Science Journal of Harbin Normal University
基金
国家科技支撑计划专题项目(2006BAJ05A14)
关键词
开封市
蔬菜
硝酸盐
亚硝酸盐
污染评价
Kaifeng City
Vegetables
Nitrate
Nitrite
Polluted evaluation
