Bioaccumulation of macronutrients in edible mushrooms in various habitat conditions of NW Poland : role in the human diet
Artykuł - publikacja recenzowana
Abstrakt
en
Recently, the interest in mushroom consumption has been growing, since their taste and low
calorific value are appreciated, but also due to their nutritional value. In determining the usefulness
of mushrooms in the human diet, it is important to consider the conditions of their occurrence to
perform the assessment of bioaccumulation of minerals. The aim of the study was: (a) to determine
the content of selected macronutrients (P, K, Ca, Mg, Na) in fruiting bodies of Boletus edulis, Imleria
badia, Leccinum scabrum and the soils, (b) to determine their bioaccumulation potential taking into
account the habitat conditions, and (c) an attempt to estimate their role in covering the requirement
for macronutrients of the human organism. The research material was obtained in the NW of Poland:
Uznam and Wolin, the Drawa Plain and the I ́nsko Lakeland. In the soil, we determined the content of
organic matter, pH, salinity and the content of absorbable and general forms of macronutrients. The
content of macronutrients in mushrooms was also determined. Chemical analyses were performed
using the generally accepted test methods. The study showed that in NW Poland, B. edulis grew on
the acidic soils of Arenosols, and I. badia and L. scabrum grew on Podzols. The uptake of K, Mg and Ca
by the tested mushrooms was positively, and P and Na negatively correlated with the content of these
elements in the soil. The acidity of the soil affected the uptake of K and Mg by mushrooms. There was
no effect of the amount of organic matter in the soil noticed on the content of macronutrients (except
sodium) in mushrooms. Among the studied macronutrients, none of the mushrooms accumulated
Ca, while P and K were generally accumulated in the highest amounts, regardless of the species.
Each of the other elements was usually accumulated at a similar level in the fruiting bodies of the
species we studied. The exception was I. badia, which accumulated higher amounts of Mg compared
to B. edulis and L. scabrum. Mushrooms can enrich the diet with some macronutrients, especially in P
and K.
calorific value are appreciated, but also due to their nutritional value. In determining the usefulness
of mushrooms in the human diet, it is important to consider the conditions of their occurrence to
perform the assessment of bioaccumulation of minerals. The aim of the study was: (a) to determine
the content of selected macronutrients (P, K, Ca, Mg, Na) in fruiting bodies of Boletus edulis, Imleria
badia, Leccinum scabrum and the soils, (b) to determine their bioaccumulation potential taking into
account the habitat conditions, and (c) an attempt to estimate their role in covering the requirement
for macronutrients of the human organism. The research material was obtained in the NW of Poland:
Uznam and Wolin, the Drawa Plain and the I ́nsko Lakeland. In the soil, we determined the content of
organic matter, pH, salinity and the content of absorbable and general forms of macronutrients. The
content of macronutrients in mushrooms was also determined. Chemical analyses were performed
using the generally accepted test methods. The study showed that in NW Poland, B. edulis grew on
the acidic soils of Arenosols, and I. badia and L. scabrum grew on Podzols. The uptake of K, Mg and Ca
by the tested mushrooms was positively, and P and Na negatively correlated with the content of these
elements in the soil. The acidity of the soil affected the uptake of K and Mg by mushrooms. There was
no effect of the amount of organic matter in the soil noticed on the content of macronutrients (except
sodium) in mushrooms. Among the studied macronutrients, none of the mushrooms accumulated
Ca, while P and K were generally accumulated in the highest amounts, regardless of the species.
Each of the other elements was usually accumulated at a similar level in the fruiting bodies of the
species we studied. The exception was I. badia, which accumulated higher amounts of Mg compared
to B. edulis and L. scabrum. Mushrooms can enrich the diet with some macronutrients, especially in P
and K.