秦巴山区养殖大鲵中微量元素的含量及食用安全评价

2017-07-05 02:28:37田强兵任惠丽杨元昊
安徽农业科学 2017年14期

田强兵 任惠丽 杨元昊

摘要[目的]了解秦巴山区养殖大鲵微量元素的营养价值以及食用安全状况。[方法]运用检测仪器分析了秦巴山区养殖大鲵肌肉中微量元素锌、硒、铜、铅、镉、砷、汞的含量水平,并对微量元素的营养价值和金属元素食用安全情况进行了评价。[结果]秦巴山区养殖大鲵肌肉中人体必需微量元素锌含量最高,其次为硒和铜,有毒金属元素铅、镉、砷、汞不同程度检出,但均处于无污染水平。[结论]可以认定秦巴山区养殖大鲵能够满足人体每天所需的锌和硒摄入,是人体必需微量元素的良好来源,具有较高的食用价值,可以安全食用。

关键词秦巴山区;大鲵;微量元素

中图分类号S94文献标识码A文章编号0517-6611(2017)14-0066-02

Abstract[Objective] To study nutritional value of traceelements in Megalobatrachus davidianus muscle from Qinba mountainous area and edible safety status.[Method] The inspection instrument was used to determine the content level of microelements (Zn, Se, Cu, Pb, Cd, As and Hg) in M.davidianus muscle in Qinba mountainous area, and the nutritional value and edible security situation of microelements were evaluated.[Result] Results showed that the content of Zn which is the essential microelement is in the highest level in M.davidianus muscle in Qinba mountainous area, followed by Se and Cu, toxic metals Pb, Cd, As and Hg were checked out with different levels, but all of them were in no pollution levels.[Conclusion] We can identify M.davidianus from Qinba mountainous area can satisfy the human body requirements for Zn and Se intake every day, and is a good source of essential microelement with high edible value, meanwhile is safe to eat.

Key wordsQinba mountainous area;Megalobatrachus davidianus;Microelement

大鲵,俗称“娃娃鱼”、大山椒鱼,是世界上现存最大的也是最珍贵的两栖动物,是农业产业化和特色农业重点开发及野生动物基因保护品种。大鲵在我国除西藏、内蒙古、台湾未见报道外,其余省区都有分布,主要產于长江、黄河及珠江中上游支流的山间溪流中。秦巴山区是长江最大支流汉水上游的秦岭大巴山及其毗邻地区,是中国大鲵原产地五大自然集中分布区域之一。大鲵营养价值非常高,目前对大鲵肌肉中不饱和脂肪酸、氨基酸等营养成分的分析多有研究[1-5],但对秦巴山区养殖大鲵肌肉中微量元素锌、硒、铜、铅、镉、砷、汞的报道较少。笔者通过分析微量元素在秦巴山区养殖大鲵肌肉中的含量水平, 以了解秦巴山区养殖大鲵微量元素的营养价值以及食用安全状况。……

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