Proteins and Mineral Content of Cultivated Oyster Mushrooms Grown in Kenya
Rachel Nambafu, Judith Waudo, Hudson Nyambaka
Chemical Science International Journal · pp. 47–54 · Published 1 Oct 2022
10.9734/CSJI/2022/v31i330285Abstract
Mushrooms are a good source of proteins, vitamins and minerals, and are low in fat and sugars. The various varieties have shown to contain 25 -50% protein and 8 – 12% minerals, with various photochemical compounds. The objective of the study was to assess the proximate composition, mainly crude proteins and trace elements in four varieties (Pleorotus ostreatus (PO), Pleorotus sajor caju (PS), Pleorotus pulmonaries (PP), Pleorotus cintropiletus (PC)) of dried oyster mushrooms. The crude protein compositions of the mushrooms ranged from 35.05% in (PC) to 36.86% in (PO). Mineral composition in the four mushrooms was potassium 54.85 – 73.03 mg/kg, sodium 23.51 – 26.89mg/kg, manganese 0.611 - 0.69 mg/kg, cobalt 1.13 - 1.19 mg/kg, lead 0.95 - 1.24 mg/kg, cadmium 0.17 - 0.18 mg/kg, zinc 0.48 - 0.66 mg/kg, nickel 1.85 - 2.19 mg/kg, chromium 1.33 - 1.64 mg/kg, copper 0.17 - 0.35 mg/kg, iron 1.17 - 1.91 mg/kg, calcium 0.82 - 3.59 mg/kg and magnesium 1.55 - 2.28 mg/kg. The oyster mushrooms varieties grown in Kenya are rich in proteins and minerals.
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