OCCUPATION AND HEALTH ›› 2023, Vol. 39 ›› Issue (23): 3212-3215.

• Treatise • Previous Articles     Next Articles

Determination and correlation analysis of 14 metal elements in edible fungus

WANG Ziyi, SUN Kaiqi, WU Guohua, LUO Rencai, ZHAO Jie, WANG Zheng   

  1. Nutrition and Food Hygiene Institute,Beijing Center for Disease Control and Prevention,Beijing 100013,China
  • Received:2023-04-06 Revised:2023-05-16 Online:2023-12-01 Published:2026-03-26
  • Contact: WANG Zheng,Deputy chief technician,E-mail:Lab_zlgl@126.com

Abstract: Objective To determine the content of 14 kinds of metal elements(lithium,beryllium,vanadium,chromium,nickel,cobalt,copper,arsenic,molybdenum,cadmium,antimony,thallium,lead and aluminum) in edible fungus by inductively coupled plasma-optical emissionspectrometer(ICP-OES) and inductively coupled plasma-mass spectrometer(ICP-MS) and consequently evaluate their correlation. Methods A total of 80 samples of edible fungus were collected from 16 districts in Beijing from 2019 to 2020,and treated with nitrification and microwave digestion after crushing and mixing. ICP-OES was used to determine total aluminum content and ICP-MS was used to determine other metal elements content. And the data were analyzed. Results Among all the elements in 80 samples,the contents of aluminum,copper and chromium were higher,ranging 85.300-1 624.000,1.551-6.530 and 0.060-4.728 mg/kg,respectively. The contents of other elements were low,ranging 0.000 8-1.399 0 mg/kg. The content of each element in different samples showed statistically significant difference(P<0.05). The cobalt,vanadium,nickel and chromium were positively correlated with each other,and the correlation coefficients ranged from 0.61 to 0.93. There were also significant positive correlations among arsenic-cobalt,lead-thallium and aluminum-beryllium/vanadium/cobalt,with correlation coefficients >0.6. No significant negative correlation was found among the elements,with correlation coefficients >-0.1. Conclusions The edible fungus is abundant in element content. The contents of total arsenic,lead and cadmium do not exceed the limits of pollutants in food according to the National Food Safety Standards:Limit of Pollutants in Food(GB 2760-2017),which indicated low health risk. The content of aluminum,copper and chromium in all elements is relatively high. For more attention would be paid to the health risk. Most metal elements have a positive correlation with each other. No significant negative correlations were found among the tested 14 elements.

Key words: Edible fungus, Metal elements, Inductively coupled plasma-optical emission/massspectrometer, Correlation analysis

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