柴振林; 吳學謙; 魏海龍; 吳慶其; 陳如楚
浙江省林產品質量檢測站; 浙江省林業科學研究院; 麗水市食用菌研究開發中心
【中文摘要】 在浙江香菇主產區抽樣檢測,對數據進行分析統計,首次提出了浙江省鮮香菇重金屬背景值。統計結果顯示浙江省鮮香菇重金屬背景值分別為鉛0.063mg.kg-1、鎘0.110mg.kg-1、砷0.036mg.kg-1、汞0.011mg.kg-1。經與相關標準進行比較,鮮香菇中重金屬指標還是相對安全的,但鮮香菇重金屬含量明顯高于一般蔬菜,尤其是鎘和汞。香菇中的鎘含量值得關注,香菇對重金屬鎘的富集能力較強,是鮮香菇質量安全控制的重點。香菇重金屬含量與生產過程相關,選擇適宜的香菇產地環境條件,采用富集能力低的香菇品種、改良栽培基質配方、改革栽培技術能有效降低香菇中重金屬含量。
【英文摘要】 Background levels of heavy metal contents in fresh Lentinus edodes from Zhejiang Province were firstly reported after random sampling in main supplying areas and analyzing resulted spectrometric data statistically.Determined levels were 0.063mg·kg-1 for Pd,0.110mg·kg-1 for Cd,0.036mg·kg-1 for As,and 0.011mg·kg-1 for Hg,respectively.The study was done through in-field sampling at reliable growing farms,followed by the standard lab analyses,and the statistical treatment with proved methods.Therefore,obtained values were considered representative and trustworthy.Compared to related national and industrial quality standards,levels of heavy metal contents in fresh Lentinus edodes from Zhejiang Province were safe and in low end.However,they were apparently higher than the levels of heavy metal contents found in common vegetables;especially for Cd and Hg.Because of the high bioaccumulation tendency of Lentinus edodes toward metal Cd,Cd level in fresh Lentinus edodes was noteworthy and should ...更多be the focus regarding to quality controls.The levels of heavy metal contents in fresh Lentinus edodes were also related to cultivation practice.Therefore,choosing appropriate environment for cultivation areas,using species with low bioaccumulation tendency toward heavy metal elements,and improving the components of cultivating base and growing techniques could reduce the levels of heavy metal contents in fresh Lentinus edodes. 還原
【中文關鍵詞】 浙江省; 鮮香菇; 重金屬; 背景值; 安全質量
【英文關鍵詞】 Zhejiang Province; Fresh Lentinus edodes; Heavy metal; Background levels; Quality and safety
【基金】浙江省重大科技攻關項目(項目編號2004C12009);; 浙江省重大科技重點項目(項目編號2004F12013和2004F12002)部分研究內容
【文獻出處】 中國食用菌,Edible Fungi of China,編輯部郵箱,2008年04期 【DOI】CNKI:SUN:ZSYJ.0.2008-04-014