Antioxidant potential and bioactive compounds in extract and fractions from the fruit of Smilax china: an underutilised edible berry

摘要

The fruit of Smilax china is an edible spherical berry. The content of some bioactive compounds, antioxidant activities in three different assays, and the relationships between these bioactive compounds and antioxidant activity of the extracts derived from the peel of the fruit of were investigated. The results showed that the ethyl acetate-soluble fraction (EAF) was the richest fraction in total phenolic, total flavonoids content. The n-butanol-soluble fraction (BF) had the highest concentration of anthocyanins. EAF and BF showed good DPPH radical-scavenging activity (DRSA) and reducing power (RP), while the crude extract (CE) possessed better hydroxyl radical-scavenging activity (HRSA) than other fractions. There were statistically significant correlations between some antioxidants and antioxidant activities.