COMPARATIVE STUDY OF THE SELECTED MINERAL COMPOSITION OF THE PILEUS OF PLEUROTUS OSTREATUS AND PILEUS OF PLEUROTUS FLORIDA HARVESTED FROM SAWDUST
Abstract
Pleurotus ostreatus and Pleurotus florida are commercially cultivated. The pileus
(cap) of mushrooms is particularly noted for its concentration of essential minerals
vital for human health. This study investigates the mineral composition of the pileus
of Pleurotus ostreatus and Pleurotus florida cultivated on sawdust to evaluate their
nutritional profiles and identify potential differences.
The aim of this research was to compare the levels of selected major minerals
(zinc, iron, sodium, potassium, magnesium) and trace minerals (phosphorus,
manganese, calcium) in the pileus of Pleurotus ostreatus and Pleurotus florida. The
study seeks to determine which species offers a richer mineral composition when
grown under the same conditions on sawdust.
Mineral analysis was conducted using standard analytical techniques, including
atomic absorption spectrophotometry and spectrophotometric methods. Fresh samples
of the pileus were harvested from both mushroom species and analyzed in triplicate.
The results were presented as mean ± s tandard deviation for comparative evaluation.
The results revealed that the pileus of Pleurotus florida exhibited higher
concentrations of potassium, phosphorus, and calcium, whereas the pileus of
Pleurotus ostreatus had higher manganese and sodium levels. Zinc, iron, and
magnesium were relatively similar in both species. These findings highlight the
nutritional significance of both mushroom species, with Pleurotus
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