| 蔬菜中硝酸盐与亚硝酸盐含量分析与评价 |
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| 引用本文： | 闫秋成,郭敏杰.蔬菜中硝酸盐与亚硝酸盐含量分析与评价[J].安徽农业科学,2012(7):3981+4035. |
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| 作者姓名： | 闫秋成 郭敏杰 |
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| 作者单位： | 济宁出入境检验检疫局,山东济宁,272000;济宁出入境检验检疫局,山东济宁,272000 |
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| 摘 要： | 目的]分析3种蔬菜中硝酸盐与亚硝酸盐的含量与变化。方法]以大白菜、甘蓝和马铃薯为试材,采用离子色谱法测定3种蔬菜的硝酸盐和亚硝酸盐含量,并分析3种蔬菜在不同贮藏温度和不同贮藏时间下硝酸盐与亚硝酸盐含量的动态变化。结果]大白菜、甘蓝和马铃薯的硝酸盐含量分别为7.1×102、5.1×102和2.5×102mg/kg,3种蔬菜的亚硝酸盐含量均未超标。无论在4℃还是在15～18℃条件下贮藏,3种蔬菜的硝酸盐含量均呈先升高后下降的趋势;3种蔬菜的亚硝酸盐含量可维持3～5 d基本不变,但随着贮存时间的延长,其含量均呈上升趋势。结论]该研究为深入研究贮藏条件对蔬菜硝酸盐与亚硝酸盐含量的影响提供参考。
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| 关 键 词： | 大白菜 甘蓝 马铃薯 贮藏温度 贮藏时间 硝酸盐 亚硝酸盐 |
Analysis and Evaluation on Contents of Nitrate and Nitrite in Vegetables |
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| Institution: | YAN Qiu-cheng et al(Jining Bureau of Entry-exit Inspection and Quarantine in Shandong Province,Jining,Shandong 272000) |
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| Abstract: | Objective] The study aimed to analyze the contents of nitrate and nitrite in 3 kinds of vegetables and their changes.Method] With the Chinese cabbage,Brassica oleracea and potato as the tested materials,the contents of the nitrate and nitrite in 3 kinds of vegetables were determined by the ion chromatographic,and their dynamic changes at different storage temperature and time were analyzed.Result] The nitrate contents in Chinese cabbage,B.oleracea and potato were 7.1×102,5.1×102 and 2.5×102 mg/kg resp.,and the nitrite content in 3 kinds of vegetables didn’t exceed the standard.No matter the vegetables were stored in 4 ℃ conditions or stored in 15-18 ℃ conditions,the nitrate contents in 3 kinds of vegetables all showed the trend of first increase and then decrease;the nitrite contents in 3 vegetables could maintain basically unchanged in 3-5 d,but with the prolonging of the storage time,the contents showed the rising trend.Conclusion] The study provided the reference for the deep research on the effects of the storage conditions on the nitrate and nitrite in the vegetables. |
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| Keywords: | Chinese cabbage Brassica oleracea Potato Storage temperature Storage time Nitrate Nitrite |
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