Phytochemicals and heavy metals analysis of methanolic extract of edible mushrooms collected from Karak District, Khyber Pakhtunkhwa, Pakistan

摘要

Objective:To qualitatively evaluate the phytochemicals and quantitatively determine the heavy metals of three species of edible mushrooms collected from the Karak area of Khyber Pukhtoonkhwa, Pakistan. Methods:The plant sample was subjected to methanolic extraction. The extraction was then concentrated by using rotary evaporator. The methanolic extract was screened for the qualitative study of various phytochemicals and quantitative measurement of heavy metals. Results: A maximum of phytochemicals were confirmed by carring out different tests. Among the different phytochemicals, alkaloids, flavonoids, proteins and carbohydrates were found to be present in the extracts, while saponins and glycosides were not detected. Similarly quantitative study of heavy metals was also conducted on the same extracts of the edible mushrooms. The results suggested that iron was present in maximum concentration than all other metals and nickel was found to be present in little amount when compared with other metals. All the metals were found present. Conclusions:The concentrations of heavy metals were investigated in the samples which were different in all samples. The presence of different phytochemicals in the mushroom is the key for its active biological profile.