Lipidomic Analysis, Carotenoids Content, and in Vitro Antioxidant Activities of Different Parts of Ganoderma Lucidum and Ganoderma Atrum

This study determined fatty acid compositions of two cultivated Ganoderma.The canopy and stalk lipids of the Ganoderma were analyzed for fatty acid composition, β-carotene content and antioxidant activities.The results showed that Ganoderma samples contained 51 fatty acids.Their lipid extraction yields ranged between 0.45% and 1.09%.The β-carotene content of the red Ganoderma canopy extract was higher than its stalk extract.The canopy extract also had the highest DPPH hydroxyl radical scavenging activity.The data of the overall heat map showed that over 30 fatty acids were positively and highly correlated to the lipid in the black Ganoderma stalk.The main types of fatty acids in these Ganoderma samples were palmitic, oleic, and linoleic acids.The concentration of linoleic acid in the red Ganoderma canopy was as high as 164.02 mg/g lipid.These results suggested that these Ganoderma lipids are lipid-based antioxidants and potential sources of dietary supplements.