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KMID : 1041220060480020041
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Journal of Sericultural and Entomological Science
2006 Volume.48 No. 2 p.41 ~ p.45
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Anti-oxidative Effect of ’Cheongilppong’ with Mulberry Leaves according to Different Collection Areas and Some Kinds of Mulberry Branches
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Kim Hyun-Bok
Ko Sung-Hyuk
Seok Young-Shik
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Abstract
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Mulberry leaves contain many natural components and are considerable resource for natural antiokidants. The antioxidant effect of ’Cheongilppong’ collected from Chuncheon, Suwon and Wanju regions were investigated with minilum L-100 device and ARAW-KIT (anti-radical ability of water-soluble substance), in comparison to the ascorbic acid. The measurement parts were mulberry leaves collected from different areas and some kinds of mulberry branches. We obtained that even if samples were same variety, antioxidant capacity of those showed different results according to collected regions. Also, antioxidant effect of mulberry leaves were higher than that of branches. The order of antioxidant effect in Spring was Chuncheon > Suwon > Wanju. The antioxidant effect of mulberry leaves collected from Chuncheon, Suwon and Wanju regions of just before the coloration stage with anthocyanin in fruits were 3627.5 nmol, 2620.0 nmol 1360.7 nmol (ascorbic acid equivalents), respectively. In Autumn, the antioxidant effect and hardness quality of mulberry leaves were increased gradually until just before fallen leaves stage. Therefore, we concluded that being the most suitable period for collecting mulberry leaves as a antiokidant resource is from the latter part of May to the first ten days of June.
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KEYWORD
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Mulberry leaves, Antioxidant effect, Cheongilppong
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