大理市市售蔬菜硝酸盐及亚硝酸盐污染现状分析  

Nitrate and nitrite pollution in vegetables from markets of Dali

作　　者：周雪萍 宋艳秋 王嘉成 隋世燕 

机构地区：[1]大理大学公共卫生学院,云南大理671000 [2]大理大学农学与生物科学学院,云南大理671003

出　　处：《现代预防医学》2017年第21期3879-3882,共4页Modern Preventive Medicine

基　　金：云南省教育厅项目(2014C110Y)

摘　　要：目的通过对大理市市售蔬菜硝酸盐及亚硝酸盐的含量进行检测和分析,为蔬菜的食用安全提供科学依据。方法采用食品安全检测仪对大理市市区3大菜市场8类20种蔬菜中的硝酸盐和亚硝酸盐含量进行测定,并对结果进行分析。结果 8类蔬菜亚硝酸盐含量高低顺序为叶菜类>根菜类>花菜类>茄果类>茎菜类>瓜菜类>豆类>葱蒜类,经方差分析,叶菜类与根菜类、花菜类及茎菜类亚硝酸盐含量之间无统计学意义(P>0.05),但与其他几类蔬菜间均有统计学意义(P<0.05),其中与葱蒜类(P=0.002)及瓜菜类(P=0.007)的差异达到极显著水平。市售蔬菜硝酸盐污染情况轻度、中度、重度、严重污染率分别为75%、7.5%、8.75%、8.75%。结论大理市市售蔬菜硝酸盐、亚硝酸盐污染情况较为严峻,叶菜类蔬菜含量最高;不同菜市场污染情况不同,新桥菜市场亚硝酸盐污染严重,而灯笼菜市场硝酸盐污染严重。Objective To detect and analyze the nitrate and nitrite content in vegetables sold in Dali city,and to provide a scientific basis for the edible safety of vegetables. Methods 20 kinds of vegetables of eight categories from 3 big markets in Dali city were determined by the food safety monitoring device,and the results were analyzed. Results The order of nitrite content in the vegetables of eight categories was： leaf vegetables root vegetables flower vegetables solanaceous vegetables stem vegetables cucurbit vegetables beans vegetables allium vegetables. It had no statistical significance（ P 0. 05）about nitrite content between leaf vegetables and root vegetables,flower and stem vegetables through the analysis of variance,but it had statistical significance in other kinds of vegetables（ P 0. 05）. It had an extremely significant difference with the onion garlic（ P = 0. 002） and cucurbit vegetables（ P = 0. 007）. The mild,moderate,severe and serious pollution rate of nitrate in vegetables were 75%,7. 5%,8. 75% and 7. 5% respectively. Conclusion The nitrate and nitrate pollution in vegetables from Dali city is relatively serious. The content of leafy vegetables is the highest. The pollution of different vegetable market is different. The pollution of nitrite is serious in Xinqiao market,while the pollution of nitrate is serious in the Denglong market.

关 键 词：蔬菜 硝酸盐 亚硝酸盐 食品安全 

分 类 号：R15[医药卫生—营养与食品卫生学]