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A correlation between tocopherol content and antioxidant activity in seeds and germinating seeds of soybean cultivars
Author(s) -
Lee Yu Young,
Park Hyang Mi,
Hwang Tae Young,
Kim Sun Lim,
Kim Mi Jung,
Lee Seuk Ki,
Seo Min Jung,
Kim Kee Jong,
Kwon YoungUp,
Lee Sang Chul,
Kim Yul Ho
Publication year - 2014
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.6963
Subject(s) - tocopherol , germination , cultivar , antioxidant , biology , horticulture , food science , botany , agronomy , chemistry , vitamin e , biochemistry
BACKGROUND Tocopherols are crucial lipid‐soluble antioxidants and essential nutrients. There is increasing interest in the biofortification of crops with vitamin E for reducing micronutrient malnutrition. However, relatively little is known about the development of soybean cultivars with high levels of tocopherol through combined breeding. RESULT Tocopherol contents of seeds and germinating seeds of 28 Korean soybean cultivars were analyzed and evaluated for health‐promoting activities. Total tocopherol concentrations ranged from 203.9 to 503.1 µg g −1 in seeds and from 20.1 to 230.1 µg g −1 in germinating seeds. The traditional landraces of HaNagari ( HN , 503.1 µg g −1 ), Orialtae ( OL , 486.6 µg g −1 ), SuMoktae ( SM , 476.5 µg g −1 ) and SoRitae ( SR , 475.5 µg g −1 ) showed high levels of tocopherol content. The contents of the four isomers of tocopherol in seeds and germinating seeds were correlated with lipid peroxidation. The γ‐ and δ‐tocopherol contents in seeds were related to 1,1‐diphenyl‐2‐picrylhydrazyl free radical scavenging activity (0.434; P < 0.01 and 0.373; P < 0.05). CONCLUSION Total tocopherol content was higher in soybean landraces as compared with modern cultivars developed by cross‐breeding. These results suggest that soybean breeding is necessary to increase tocopherol levels. © 2014 Society of Chemical Industry