Comparative analysis of phytochemicals and polar metabolites from colored sweet potato (Ipomoea batatas L.) tubers

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• 作者：Soo-Yun Park ; So Young Lee ; Jung Wook Yang ; Joon-Seol Lee…
• 关键词：carotenoid ; metabolomics ; partial least squares discriminant analysis ; phenolic acid ; sweet potato
• 刊名：Food Science and Biotechnology
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：25
• 期：1
• 页码：283-291
• 全文大小：481 KB
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• 作者单位：Soo-Yun Park (1)
  So Young Lee (1)
  Jung Wook Yang (2)
  Joon-Seol Lee (2)
  Sung-Dug Oh (1)
  Seonwoo Oh (1)
  Si Myung Lee (1)
  Myung-Ho Lim (1)
  Soon Ki Park (3)
  Jae-Seon Jang (4)
  Hyun Suk Cho (1)
  Yunsoo Yeo (1)
  
  1. National Academy of Agricultural Science, Rural Development Administration, Jeonju, Jeonbuk, 54874, Korea
  2. Bioenergy Crop Research Institute, Rural Development Administration, Muan, Jeonnam, 58545, Korea
  3. School of Applied Biosciences, Kyungpook National University, Daegu, 41566, Korea
  4. Department of Food & Nutrition, Gachon University, Seongnam, Gyeonggi, 13120, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nutrition
  Food Science
  
• 出版者：The Korean Society of Food Science and Technology in co-publication with Springer
• ISSN：2092-6456

文摘

We determined the phytochemical diversity, including carotenoids, flavonoids, anthocyanins, and phenolic acids, in sweet potatoes (Ipomoea batatas L.) with distinctive flesh colors (white, orange, and purple) and identified hydrophilic primary metabolites. Carotenoid content was considerably higher in orange-fleshed sweet potatoes, wherein β-carotene was the most plentiful, and anthocyanins were detected only in purple-fleshed sweet potatoes. The levels of phenolic acids and flavonoids were relatively higher in purple-fleshed sweet potatoes than those in the other two varieties. Forty-one primary and 18 secondary metabolite profiles were subjected to multivariate statistical analyses, which fully distinguished among the varieties and separated orange- and purple-fleshed sweet potatoes from white-fleshed sweet potatoes based on the high levels of sugars, sugar alcohols, and secondary metabolites. This is the first study to determine comprehensive metabolic differences among different color-fleshed sweet potatoes and provides useful information for genetic manipulation of sweet potatoes to influence primary and secondary metabolism.