Abstract
Pleurotus nebrodensis has been widely used for nutritional and medicinal purposes. The aim of the present study was to evaluate the antioxidant activities and tyrosinase inhibitory effects on the fruiting bodies of P. nebrodensis extracted with acetone, methanol and hot water. The antioxidant activities were performed on - carotene-linoleic acid, reducing power, 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferrous ions chelating abilities and xanthine oxidase inhibitory activity. In addition to this, phenolic compounds were also detected. The acetonic and methanolic extracts of P. nebrodensis showed the strongest -carotene-linoleic acid inhibition as compare to hot water extract. At 8 mg/ml, the acetonic extract showed a high reducing power of 1.86. The scavenging activity on DPPH radicals, the acetonic and methanolic extracts were effective than that of hot water extract. At lower concentrations, chelating effect of tested mushroom was significantly effective as compare to positive control. Gallic acid, protocatechuic acid, chlorogenic acid, ferulic acid, naringenin, hesperetin, formononetin and biochanin-A were detected from acetonitrile and hydrochloric acid solvent extract. The xanthine oxidase and tyrosinase inhibitory activities of the acetonic, methanolic and hot water extracts increased with increase of concentration. This study suggests that fruiting bodies of P. nebrodensis can potentially be used as a readily accessible source of natural antioxidants. Key words: Antioxidant, phenolic compounds, Pleurotus nebrodensis, tyrosinase inhibition, xanthine oxidase.
Highlights
Pleurotus nebrodensis is known as the Bailinggu oyster and white sanctity mushroom
The antioxidant activities were performed on carotene-linoleic acid, reducing power, 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferrous ions chelating abilities and xanthine oxidase inhibitory activity
The antioxidant activities on -carotene-linoleic acid of acetonic, methanolic and hot water extracts from the fruiting bodies of P. nebrodensis gradually increased with increasing concentration
Summary
Pleurotus nebrodensis is known as the Bailinggu oyster and white sanctity mushroom. It is one of the popular edible mushrooms in China. This mushroom was successfully cultivated and commercially available in Korea. P. nebrodensis is abundant in nutrition including sub-oleic acid, non-saturate fatty acids and many micro-elements such as calcium, zinc and manganese. It is a good source of dietary fiber and other valuable nutrients (Alam et al, 2008). This mushroom contain a number of Abbreviations: BHT, Butylated hydroxytoluene; DMSO, dimethyl sulfoxide; DPPH, 1,1-diphenyl-2-picrylhydrazyl; LDOPA, L-phenylalanine; XO, xanthine oxidase
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
