Poster Topical Area: Dietary Bioactive Components
Location: Hall D
Poster Board Number: 313
Objective: Blueberry belongs to the Ericaceous Vaccinium group of deciduous shrub plants and is known for its high contents of various bioactive compounds including flavonoid, phenolic acid, and anthocyanin. These phytochemical compounds are responsible for various health benefits of berries, such as antioxidant, antitumor, and anti-inflammatory properties. The present study was aimed to investigate the physicochemical properties, the content and the composition of phenolic compounds, and antioxidant activity of 10 blueberry cultivars grown in Sangju, Korea.
Methods: We evaluated the content of total phenolic compound, total flavonoid, and total anthocyanin. The composition and content of phenolic compounds were investigated by HPLC-DAD. The antioxidant activities were evaluated by ferric reducing antioxidant power (FRAP) and free radical scavenging activities of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-azinobis-(3-ethylbenzothiazoline-6-sulphonic acid (ABTS). The cellular antioxidant activities in HepG2 cells were measured by DCFDA cellular ROS detection assay kit.
Results: The highest levels of bioactive compounds and FRAP as well as free radical scavenging activities of DPPH and ABTS were found in the Rubel, followed by the Rancocas and Sunrise cultivar in vitro and in cellular systems. The Chandler cultivar was the biggest fruit in size with very low bioactive compound contents and antioxidant activities.
Conclusions: There were differences in the content and the composition of phenolic compounds, and antioxidant activity among the different blueberry cultivars. These results will provide information on the selection of breeding as well as dietary supplement development with blueberries.
Gyeongsan, Kyongsang-bukto, Republic of Korea