Contents of low molecular weight antioxidants in the leaves of different sweetpotato cultivars at harvest = 고구마 품종별 수확시기 잎의 저분자항산화물질 함량분석

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Title
Contents of low molecular weight antioxidants in the leaves of different sweetpotato cultivars at harvest = 고구마 품종별 수확시기 잎의 저분자항산화물질 함량분석
Author(s)
Young Ock Ahn; Sun Ha Kim; Haeng Soon Lee; J S Lee; D Ma; Sang Soo Kwak
Bibliographic Citation
Journal of Plant Biotechnology, vol. 36, no. 3, pp. 214-218
Publication Year
2009
Abstract
Sweetpotato [Ipomoea batatas (L.) Lam] leaves are excellent source of low molecular weight antioxidants such as polyphenols, anthocyanins and carotenoids compared to other leafy vegetables. Endogenous antioxidants in sweetpotato help our bodies to prevent ageing, heart diseases and cancer. In this study, to develop the proper cultivars for the functional feed materials, we investigated the contents of anthocyanin, β-carotene, and polyphenols as well as DPPH radical scavenging activity in leaves of 14 different cultivars at the time of the harvest. They showed a diverse antioxidation activity. In DPPH radical scavenging activity, cultivars of Nanjing 9, Yulmi and Shinzami showed higher activity, whereas cv. Huiza 6 showed the lowest. Cultivars of Shinzami and Shinhwangmi had the highest anthocyanin (3.5 mg/g fr wt) and polyphenol (15.8 mg/g fr wt) content, respectively. Interestingly, there was a high correlation between cultivars with colorful pigments in storage roots and antioxidants activity in leaves. These results suggest that sweetpotato leaves with high antioxidant activity at harvest would be suitable for functional feed materials.
ISSN
1229-2818
Publisher
South Korea
DOI
http://dx.doi.org/10.5010/JPB.2009.36.3.214
Type
Article
Appears in Collections:
Division of Biomaterials Research > Plant Systems Engineering Research > 1. Journal Articles
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