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題 名 | Composition of Two Seaweed-oligosaccharide-lysates Derived from Agarase AS-Ⅱ and Their Ferrous-chelating Antioxidant Power |
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作 者 | Wang, Fu-jin; Kang, Sheen-kye; Pan, Chorng-liang; Wu, Shao-chi; | 書刊名 | Journal of Marine Science and Technology |
卷 期 | 19:5 2011.10[民100.10] |
頁 次 | 頁557-564 |
分類號 | 346.2 |
關鍵詞 | β-agarase; Antioxidative activity; Neoagarohexaose; Neoagarotetraose; |
語 文 | 英文(English) |
英文摘要 | Seaweed-oligosaccharide-lysates (SwOSLys) Gra-C108, Mon-C108, Gra-AS-II, or Mon-AS-II are seaweed polysaccharide extracts (SwPSExts) Gra or Mon, which are digested by either Aeromonas (A.) salmonicida MAEF108 crude agarases or Agarase AS-II that was produced from marine bacteria A. salmonicida MAEF108. High-performance liquid chromatography revealed that there were neoagarohexaose and neoagarotetraose in both Gra-C108 and Gra-AS-II and that neoagarooligosaccharide was absent in both Mon-C108 and Mon-AS-II. The polyphenol content of SwOSLys was higher than that of SwPSExts, though without significant difference (p < 0.05) on lysates, as digested by crude MAEF108-agarases or Agarase AS-II. Comparison of the chelating effects of Gra-C108 and Gra-AS-II on Fe2+ shows that not only do the polyphenolic compound but also the neoagarooligosaccharide show antioxidative properties. |
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