Iron translocation in Pleurotus ostreatus basidiocarps: production, bioavailability, and antioxidant activity

Genetics and Molecular Research : GMR
M E YokotaG A Linde

Abstract

Translocation of minerals from substrate to mushrooms can change the medicinal characteristics, commercial value, and biological efficiency of mushroom. In the present study, we demonstrated that addition of iron to the substrate reduces the yield of Pleurotus ostreatus mushroom. The biological efficiency of the mushroom varied from 36.53% on the unsupplemented substrate to 2.08% for the substrate with 500 mg/kg iron added. The maximum iron concentration obtained for mushroom was 478.66 mg/kg (dry basis) and the maximum solubility in vitro was 293.70 mg/kg (dry basis). Iron translocation increased the ash and protein content, reduced antioxidant activity, and enhanced the aroma and flavor characteristics of the mushroom. However mushroom has higher amounts of iron than vegetables like collard greens, it is not feasible to use mushrooms as the only dietary source of iron. The study also indicated that because of more bioaccumulation of iron in mycelium than in the mushroom, mycelium and not mushroom, could be a better alternative as a non-animal iron source.

Citations

Feb 14, 2020·Nutrition Research Reviews·Irina BorodinaDouglas B Kell
Sep 16, 2020·Environmental Technology·Adriano Borges MeniquetiGiani Andrea Linde
Aug 20, 2020·Anais Da Academia Brasileira De Ciências·Suzana H UmeoGiani Andrea Linde
May 31, 2020·Current Microbiology·Fengcai YeChanghua Shang
Jul 6, 2019·Chemosphere·Maria Graciela Iecher FariaGiani Andrea Linde
Jul 28, 2021·Enzyme and Microbial Technology·Nelma Lopes AraújoJuliana Silveira do Valle

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