The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Quality and Physicochemical Characteristics of the Korean Cowpea Cultivars Grown in Different Seeding Periods

품종 및 파종시기별 동부의 품질 및 이화학 특성

  • Kim, Hyun-Joo (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Ji Hae (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Byong Won (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Yu Young (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Jeon, Yong Hee (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Byoung Kyu (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) ;
  • Woo, Koan Sik (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
  • 김현주 (농촌진흥청 국립식량과학원 중부작물부) ;
  • 이지혜 (농촌진흥청 국립식량과학원 중부작물부) ;
  • 이병원 (농촌진흥청 국립식량과학원 중부작물부) ;
  • 이유영 (농촌진흥청 국립식량과학원 중부작물부) ;
  • 전용희 (농촌진흥청 국립식량과학원 중부작물부) ;
  • 이병규 (농촌진흥청 국립식량과학원 중부작물부) ;
  • 우관식 (농촌진흥청 국립식량과학원 중부작물부)
  • Received : 2018.07.17
  • Accepted : 2018.07.27
  • Published : 2018.08.31
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Abstract

To begin with, this study identified and reviewed the proximate compositions, quality and physicochemical characteristics of three Korean cowpea (Vigna unguiculata L. Walp.) cultivars grown in two different seedling periods. The proximate compositions of the cowpea showed significant differences according to three cultivars (Seowon, Yeonboon and Okdang) and two different seeding periods (5 June and 5 July). Through this lens, the lightness, redness and yellowness of the cowpea cultivars increased slightly during the 5 July cultivation compared to the 5 June cultivation. This brings us to understand that the water binding capacity, water solubility index, and swelling power were significantly different among the cultivars. In this case, the water binding capacity of the cowpea was 108.87~143.19%, and decreased during the 5 July cultivation compared to the 5 June cultivation. As shown, the total polyphenol and flavonoid contents of cowpea showed significant difference according to cultivars. In this case, the total polyphenol content of 5 June and 5 July cultivation on the Seowon 4.17 and 4.12 mg GAE/g, respectively. In these terms, the DPPH radical scavenging activity of cowpea showed a significant difference according to the cultivars, and the Yeonboon and Okdang increased slightly during 5 July cultivation. The ABTS radical scavenging activity of the cowpea showed significant difference according to the cultivars, and all cultivars decreased slightly during the 5 July cultivation. In other words, the phenol contents and radical scavenging activity differ measurable depending on the cultivars and seeding periods. Therefore, it is necessary to study the proper cultivar and seeding time considering the environment of the applicable cultivation area.

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References

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