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http://dx.doi.org/10.7852/jses.2015.53.2.71

Anti-oxidative capacity of mulberry genetic resources  

Kim, Hyun-bok (National Academy of Agricultural Science, RDA)
Seok, Young-Seek (Gangwon-do Agricultural Product Registered Seed Station)
Seo, Sang-Deok (Chungcheongnam-do Sericultural and Entomology Experiment Station)
Sung, Gyoo Byung (National Academy of Agricultural Science, RDA)
Kim, Sung-Kuk (National Academy of Agricultural Science, RDA)
Jo, You-Young (National Academy of Agricultural Science, RDA)
Kweon, HaeYong (National Academy of Agricultural Science, RDA)
Lee, Kwang-Gill (National Academy of Agricultural Science, RDA)
Publication Information
Journal of Sericultural and Entomological Science / v.53, no.2, 2015 , pp. 71-77 More about this Journal
Abstract
Much attention has been focused on the activity of the natural antioxidants present in fruits and vegetables, because potentially these components may reduce the level of oxidative stress. Especially, mulberry leaves containing many natural components are considerable resource for natural antioxidants. The antioxidant capacity of mulberry leaves was investigated with minilum L-100 device and ARAW-KIT (anti-radical ability of water-soluble substance), in comparison to the ascorbic acid. The antioxidant capacity of 16 varieties was 3303.4 nmol at opening stage of five leaves in spring. The highest stage of antioxidant capacity (3708.0 nmol) and yield rate was just before the coloration stage with anthocyanin in fruits, whereas the lowest stage was middle of June (2231.6 nmol) and about two months growing stage after summer pruning (2064.6 nmol). But after summer pruning, the antioxidant capacity of mulberry leaves increased gradually until just before fallen leaves stage. Even if samples were same variety, antioxidant effect of those showed different results according to collected regions. Also, antioxidant effect of mulberry leaves were higher than that of branches. The antioxidant capacity of yield-type mulberry leaves and fruits (Morus alba L., M. bombycis Koidz, and M. Lhou (Ser.) Koidz) collected from In-je, Won-ju and Yang-yang regions, Kang-won province, Korea, was investigated. The results indicated that total antioxidant capacity of yield-type mulberry leaves was 2711.2 nmol. In the antioxidant capacity analysis of Jeollabuk-Do genetic resources, autumn's mulberry leaves showed higher antioxidant capacity than that of spring's it. To investigate the effect of tea on antioxidative capacity, five kinds of tea(coffee mix, green tea added brown rice, mulberry leaf tea, Polygonatum odoratum tea and black tea added lemon) were selected and analyzed. Their's anti-oxidative capacity were 2,531.01 nmol, 1,867.42 nmol, 1,053.72 nmol, 292.71 nmol and 188.91 nmol, respectively. The antioxidative capacity of drinking water soaked with mulberry leaf showed 891.96 nmol.
Keywords
Mulberry; Genetic resource; Anti-oxidative capacity;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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