Chemical composition of Marasmius Oreades; A Wild Edible Mushroom among Kabba – Bunu Inhabitants of Nigerian
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
FUTA Journal of Research in Sciences
Abstract
The use of mushroom as food ingredient has been practiced over years, though many species are consumed for
their nutritional and health benefits, the chemical composition of most of these wild edible mushrooms in the
tropics has been poorly studied. In this work, a wild mushroom Marasmius oreades; commonly eaten among
inhabitants of Bunu land in Nigeria was assessed. The mushrooms were harvested from forests in three villages
namely Aduratedo-Ape (AA), Okebukun (OK) and Aiyetoro-Kiri (AK). Proximate, phytochemical, mineral,
fatty acid and amino acid constituents of the mushrooms were assessed using standard methods. The proximate
on dry matter basis were; protein (12.06-14.54%), fat (7.73-8.38%), fibre (0.56-0.62%), total ash (10.15-
14.90%) and carbohydrate (56.01-57.60%). There was no significant (P<0.05) difference in the parameters
tested except the protein (14.54%) and ash (14.90%) of samples AK and OB respectively. The predominant
phytochemical was flavonoids (12.052%) with others occurring at lower concentrations. Linoleic are most
predominant fatty acids with an average result of 51.78%. The range of values obtained for both
monounsaturated (28.77-29.34%) and polyunsaturated (51.68-53.20%) fatty acids were greater than saturated
fatty acid (18.22-18.29%) in all samples. M. oreades contains great amount of potassium (1270.61 mg/kg),
sodium (822.34 mg/kg), phosphorus (619.77 mg/kg), calcium (180.27 mg/kg) and magnesium (95.49 mg/kg).
Some amino acids were significantly (P<0.05) affected by sampling locations such as threonine, lysine,
cysteine, serine, aspartate and glutamate. The essential amino acids score (1.340) and essential amino acid index
(1.261) indicated M. oreades as a good source of quality protein. However, it was limiting in tryptophan and
leucine. This study concludes by recommending M. oreades as a good dietary supplement for adults.
Description
Keywords
Marasmius oreades, Proximate composition, Phytochemicals, Minerals, Amino avid