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Phenolics, tocopherols and fatty acid profiling of wild and commercial mushrooms from Pakistan
1College of Biosystem, Engineering and Food Science, Zhejiang University, China.
Abstract:
Mushrooms can be used as nutraceutical or functional foods to maintain and promote good health. In the present study, wild Ganoderma lucidum and four commercial mushrooms, Pleurotus ostreatus, Volvariella volvacea, Hericium erinaceus and Lentinus edodes, collected from Pakistan were screened for phenolics, tocopherols and fatty acid contents. High performance liquid chromatography analysis of phenolic acids showed that chlorogenic acid, ferulic acid, gallic acid, p-Coumaric and caffeic acids were observed in selected mushrooms. H. erinaceus contained high amounts of chlorogenic acid (11.49±0.1 µ/g of dry weight) and ferulic acid (7.84±0.7 µg/g of dry weight). γ-tocopherol and lutein were present in all studied mushrooms. Lutein contents were higher in H. erinaceus (2.42±0.087 µg/g of DW) followed by V. volvacea> P. ostreatus> L. edodes. γ-tocopherol was observed in the range of 74.25±3.01 to 29.65±1.2 µg/g of dry weight. GC/MS analysis of fatty acids showed that linoleic acid (18:2n6c), oleic acid (18:1n9c), palmitic acid (C16:0), stearic acid (C18:0), linolenic acid (18:3n3) and nonadecanoic acid (C19-0), were the main fatty acids found in selected mushrooms. The unsaturated fatty acids were predominated over saturated fatty acids. It is concluded that selected mushrooms are good sources of antioxidant compounds and unsaturated fatty acids.
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