Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7620147 | Journal of Food Composition and Analysis | 2016 | 23 Pages |
Abstract
Mercury (Hg) exposures represent a significant worldwide health issue. At the same time its content in cultivated mushrooms is not effectively regulated. The present study investigated how substrate contamination with Hg (0.1-0.5 mM) affects its accumulation in stipes and caps of Agaricus bisporus E58, Pleurotus ostreatus H195 and Hericium erinaceus HE01, mushroom growth and composition of macronutrients. The greatest Hg accumulation was demonstrated for caps. Generally, Hg uptake increased in a concentration-dependent manner and exceeded 44 mg kgâ1 (P. ostreatus), 116 mg kgâ1 (A. bisporus) and 53 mg kgâ1 (H. ercinaceus) in caps after 0.5 mM was added to the substrate. Importantly, an increase in Hg accumulation was also significant and potentially hazardous for human health at the lowest assayed concentration. A. bisporus and P. ostreatus revealed high resistance to Hg and declined its biomass only at 0.4 and 0.5 mM concentration. The presence of Hg did not alter the macronutrient composition (total carbohydrates, proteins and fats). These results highlight the significant role of proper substrate selection in mushroom cultivation to avoid exposing consumers to harmful Hg levels and further health consequences.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Piotr Rzymski, MirosÅaw Mleczek, Marek Siwulski, Monika GÄ
secka, PrzemysÅaw Niedzielski,