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KMID : 1134820190480090943
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Journal of the Korean Society of Food Science and Nutrition
2019 Volume.48 No. 9 p.943 ~ p.952
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Nutritional Components and Antioxidant Activities of ‘Sangan’ and ‘Heuksaeng’ Peanuts (Arachis hypogaea L.) Grown in Korea
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Park Seo-Yeon
Lee Jong-Hun
Kim Bo-Min
Baik Su-Jeong
Park Bo-Ra
Lee Sang-Hoon
Cha Bo-Sook
Nam Jin-Sik
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Abstract
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This study investigated and compared the nutritional components and antioxidant effects of Sangan and Heuksaeng peanuts. Among the proximate compositions, the Heuksaeng peanut was higher in all components, except crude protein, than that of the Sangan peanut. The dietary fiber content of the Heuksaeng peanut was 1.7 times higher than that of the Sangan peanut. The amino acid content of the Sangan peanut was higher than that of the Heuksaeng peanut, except for arginine and cystine, and the content of glutamic acid was the same. The potassium level of the Sangan peanut was higher than that of the Heuksaeng peanut, but other minerals were higher in the Heuksaeng peanut. The oleic acid and palmitic acid contents were higher in the Heuksaeng peanut than that in the Sangan peanut, while linoleic acid showed the opposite trend. The total polyphenol (22.19 mg/g) and flavonoid (1.36 mg/g) contents were the highest in the 70% acetone extract of the Heuksaeng peanut and the 80% methanol extract of Heuksaeng peanut, respectively. For the results of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, the 70% acetone extract of the Sangan peanut showed the highest activity. The 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS) radical scavenging activity and the iron chelating effect were the highest in the 80% methanol extract of the Heuksaeng peanut, and the nitrite scavenging activity was the highest in the 80% methanol extract of the Sangan peanut. Further, the total polyphenol contents were significantly correlated with the DPPH and ABTS radical scavenging activity.
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KEYWORD
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peanut, Arachis hypogaea L., Heuksaeng, nutritional component, antioxidant activity
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