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http://dx.doi.org/10.7235/hort.2012.11091

Antioxidant Activities of Young and Mature Fruit in Three Asian Pear Cultivars  

Park, Yeon-Ok (Pear Research Station, National Institute of Horticultural & Herbal Science)
Choi, Jang-Jeon (Pear Research Station, National Institute of Horticultural & Herbal Science)
Choi, Jin-Ho (Pear Research Station, National Institute of Horticultural & Herbal Science)
Kim, Myung-Su (Pear Research Station, National Institute of Horticultural & Herbal Science)
Yim, Sun-Hee (Pear Research Station, National Institute of Horticultural & Herbal Science)
Lee, Han-Chan (Pear Research Station, National Institute of Horticultural & Herbal Science)
Publication Information
Horticultural Science & Technology / v.30, no.2, 2012 , pp. 208-213 More about this Journal
Abstract
This study was performed to compare antioxidant activities of 80% EtOH extracts from young and mature fruit of three pear cultivars ('Wonhwang', 'Whangkeumbae', and 'Chuwhangbae') classified by three parts (peel, core, and flesh) of mature fruit. The total phenolics compound and flavonoid contents of 80% EtOH extracts from young fruit were 1.5-2.5 times higher than the mature fruit with great cultivar difference. In particular, the contents of those compounds were highest in 'Chuwhangbae' pear. The total phenolics compound and flavonoid contents of 80% EtOH extracts from mature fruit were the most in the peel, core, and flesh respectively. DPPH radical scavenging and $ABTS^+$ radical scavenging of 80% EtOH extracts from the young fruit were higher than the mature fruit of 'Chuwhangbae' pear. DPPH radical scavenging and ABTS+ radical scavenging of 80% EtOH extracts from mature fruit were the highest in the peel, core, and flesh respectively.
Keywords
ABTS; DPPH radical scavenging; flavonoid; phenolic compounds;
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