西南地区松茸中重金属含量调查
2019-08-27胡江涛俞凌云薛康于刚何开蓉唐振涛雍莉张坤陈树兵张朝晖
胡江涛 俞凌云 薛康 于刚 何开蓉 唐振涛 雍莉 张坤 陈树兵 张朝晖


摘要 [目的]全面了解西南地区松茸中重金属(铅、镉、砷和汞)的含量,为制定松茸中重金属污染状况的评价和预警提供基础数据。[方法]收集750个松茸样品,按照GB 5009系列食品安全国家标准进行相应重金属的测定,根据GB 2762—2017《食品安全国家标准 食品中污染物限量》进行评价。[结果]铅、镉和汞的含量97%以上符合GB 2762—2017中规定食品中污染物限量要求,而总砷含量不足50%符合GB 2762—2017中规定食品中污染物限量要求。[结论]此次调查选取的松茸样品中总砷含量合格率不足50%,但以无对人体危害大的无机砷含量计算均合格,因此建议食品安全国家标准中专门设定松茸中无机砷的限量,而不是总砷的限量。
关键词 松茸;铅;镉;砷;汞;含量;调查
中图分类号 TS207.5+1文献标识码 A
文章编号 0517-6611(2019)13-0200-03
doi:10.3969/j.issn.0517-6611.2019.13.061
开放科学(资源服务)标识码(OSID):
Investigation on Heavy Metal Contents of Tricholoma matsutake in Southwest China
Abstract [Objective] To master the contents of heavy metals (lead, cadmium, arsenic and mercury) in Tricholoma matsutake in Southwest China and provide a reliable basis data for the evaluation and early warning of arsenic pollution. [Method] 750 samples of Tricholoma matsutake were collected, and the heavy metals were determined according to GB 5009 series of national food safety standards, and evaluated according to GB 2762-2017 National Food Safety Standard Food Pollutants Limit. [Result]More than 97% of the contents of lead, cadmium and mercury met the requirement of food contamination limits stipulated in GB 2762-2017, while less than 50% of the total arsenic content met the requirement of food contamination limits stipulated in GB 2762-2017. [Conclusion] The qualified rate of total arsenic content in Tricholoma matsutake samples selected in this survey is less than 50%, but the calculation of organic arsenic content which is not harmful to human body is qualified. Therefore, it is suggested that the limit of inorganic arsenic in Tricholoma matsutake should be set in the national food safety standards, rather than the total arsenic limit.
Key words Tricholoma matsutake;Lead;Cadmium;Arsenic;Mercury;Content;Investigation
基金項目 四川检验检疫局科研项目(SK201708)。
作者简介 胡江涛(1974—),男,四川遂宁人,高级工程师,硕士,从事食品理化检验研究。
收稿日期 2018-12-18;修回日期 2019-02-27
松茸是一种天然的珍稀名贵野生食用菌类,含有8种氨基酸、14种人体必需微量元素,因其营养丰富,味道鲜美,富含蛋白质、维生素和糖类,有极高的营养和药用价值,具有强精补肾、止痛、理气、化痰等功效,被誉为“菌中之王”[1-6]。由于对生长环境十分挑剔,松茸的人工栽培技术尚未成功,因此属于野生食用菌。在我国,松茸仅产于四川、云南、西藏、黑龙江、吉林5个省区,其中,中国西南地区的四川和云南是松茸的主要产地。……
