云南农业大学学报（自然科学）2017，Vol.32Issue(3)：523-535,13.DOI:10.16211/j.issn.1004-390X(n).2017.03.019
云南省野生牛肝菌总汞含量测定分析及健康风险评估
Determination of Total Mercury and Health Risk as Assessment in Wild-grown Bolete Mushrooms from Yunnan Province
摘要
Abstract
[Purposes] This study aimed to determine the total mercury (Hg) in common wild-gown bolete mushrooms from Yunnan Province,systematically and analyze the enrichment regularities and accumulation characteristics of Hg in different species as well as different parts of boletes from different geographical origins.Furthermore,the food safety of wild-grown bolete mushrooms was also assessed in order to provide the data basis for the development of wild edible mushroom industry and the risk assessment.[Methodis] Total Hg in caps and stipes of bolete mushrooms were determined by cold-vapour atomic absorption spectroscopy and direct mercury analyzer.The differences and accumulation characteristics of total Hg in different species and different parts of the bolete mushrooms were analyzed based on the values of Hg cap to stipe concentration quotient (QC/S).The food safety of the wild-grown bolete mushrooms from Yunnan Province was evaluated according to the national food safety standards in China and limit contaminants in food (GB 2762-2012) and Hg provisionally tolerable weekly intake (PTWI) recommended by the United Nations Food and Agriculture Organization and the World Health Organization (FAO/WHO).[Results] The results showed that Q(C/S) values were arranged from O.3 to 8.8 and the values of 95％ samples were greater than or equal to 1,it demonstrated that the accumulation ability of Hg in caps was stronger than that in stipes in most of the bolete mushrooms.The total Hg contents of most of the test bolete samples were higher than the standard GB 2762-2012 (Hg ≤0.1 mg/kg).Compared with the PTWI values in adults (60 kg),the amount of Hg presented in a dose of 300 g (average quantity per week) fresh bolete mushrooms was lower than the acceptable intake except the Boletus edulis,Boletus aereus and Boletus tomentipes samples which collected from Dayingjie,Yuxi in 2013,Yongren,Chuxiong in 2012 and Xinping,Yuxi in 2014,respectively,It meant that most of the tested samples did not present health risk to a consumer.[Conclusion] There were significant differences in total Hg contents in different samples and a few samples were higher than the standard with potential risks.关键词
牛肝菌/健康风险/汞/重金属/食品安全Key words
bolete mushrooms/health risk/Hg/heavy metal/food safety分类
轻工纺织引用本文复制引用
李杰庆,杨天伟,张霁,Jerzy FALANDYSZ,Grazyna KRASINSKA,Martyna SABA,王元忠,刘鸿高..云南省野生牛肝菌总汞含量测定分析及健康风险评估[J].云南农业大学学报（自然科学）,2017,32(3):523-535,13.基金项目
国家自然科学基金项目(21667031,31660591) （21667031,31660591）
云南省教育厅科学研究基金项目(2016ZZX106) （2016ZZX106）
波兰国家科学中心项目(UMO-2011/03/N/NZ9/04136). （UMO-2011/03/N/NZ9/04136）
