Utjecaj supstrata različitoga podrijetla na nutritivnu vrijednost šampinjona (Agaricus bisporus Imbach)

Abstract

The metals such as Fe, Cu, Zn and Mn are the essential elements that have an important role in the human immune system. The aim of this research was to determine the concentration of nutritive values of macroelements (N, P, and K) and microelements (Fe and Zn) in a mushroom substrate and in a champignon mushroom fruiting body. A trial was conducted in the mushroom production company Romanjek LLC in Slavonski Brod, Croatia. It was conducted in four vegetation cycles on two different substrates, the one originating from Eastern Europe and the other originating from Northern Europe. At the end of the trial, the basic chemical properties of substrates and mushrooms were recorded. A comparison of investigated substrate measurements demonstrates that the highest content of elements N, P, and K was determined in the substrate 2 originating from Northern Europe, while the concentration of microelements Fe and Zn was higher in substrate 1, originating, from Eastern Europe. There was a statistically significant difference in a macroelement content in the mushrooms grown on the substrates of different origin, as well as in the transfer of Zn and Fe from a substrate to mushrooms. There was a higher accumulation of the transferred Zn in comparison to Fe in the mushrooms regardless of the origin of the substrate.

The Role in the Human Diet of Bioaccumulation of Selenium, Copper, Zinc, Manganese and Iron in Edible Mushrooms in Various Habitat Conditions of NW Poland—A Case Study

“…Bioaccumulation of L. scabrum was observed for Zn also on sites subject to anthropogenic pollution factors [7]. Although mushrooms have a particular ability to take up large amounts of Zn from the substrate [81], comparable amounts of Zn were also found in fruiting bodies and soil [49].…”

Improving the production and quality of white button mushroom (Agaricus bisporus) by adding biochar and ash to the casing layer

“…Measured organic matter and organic carbon by depended of rate ash and calculated equation as follow: Organic matter =1-ash percentage , Organic carbon=organic matter *0.58 (Chu et al, 2012). Total nitrogen was determined by Kjeldhal method, and percentage protein was calculated as mentioned in equation: Percentage of protein= percentage of nitrogen * 4.38 , (Romanjek Fajdetić et al, 2019). C/N ratio was determinate by carbon on nitrogen.…”

“…The protein was taken from dry weight the samples were crushed after drying with an electric grinder and kept until use in airtight plastic containers to be ready for estimation total nitrogen was determined by Kjeldhal method, and percentage protein was calculated as mentioned in equation (Percentage of protein= percentage of nitrogen * 4.38) (Romanjek Fajdetić et al, 2019).…”