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KMID : 1098420140220060442
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Korean Journal of Medicinal Crop Science
2014 Volume.22 No. 6 p.442 ~ p.448
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Antioxidative Activities of New Citrus Hybrid 'Hamilgam' Peel Extracts
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An Hyun-Joo
Park Kyung-Jin
Kim Sang-Suk
Hyun Ju-Mi
Park Jae-Ho
Park Suk-Man
Yun Su-Hyun
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Abstract
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The major objective of this study was to investigate the usability as cultivar for processing of new Citrus hybrid ‘Hamilgam’. We investigated various antioxidant activities, such as DPPH radical, ABTS radical, Hydroxyl radical and Superoxide anion radical effect, along with total polyphenol content and total flavonoid content of Citrus hybrid ‘Hamilgam’, C. unshiu, C. natsudaidai. The total polyphenol content and total flavonoid content were the highest in the Hamilgam. The major flavonoids of Hamilgam and Natsudaidai were naringin and neohesperidin, and those of Unshu were narirutin and hesperidin, as determined by HPLC. Especially, the neohesperidin content of Hamilgam showed much higher (100 times over) than that of Unshu. However, the aglycone form was not found. DPPH and ABTS radical scavenging activities were the highest in Hamilgam peels. Hydroxyl radical scavenging activity was high in the order of Unshu, Hamilgam and Natsudaidai. Superoxide anion radical scavenging of 3 cultivars peels displayed low activities compared to DPPH and ABTS radical scavenging. Based on these results, Hamilgam peel extracts possess antioxidant activities and may thus serve as potential sources of functional food, cosmetic products, etc.
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KEYWORD
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Citrus, Hamilgam, Polyphenol, Antioxidant Activities, Functional Food
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