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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Nam-Ho (Departments of Food Science and Technology, Chungnam National University) Jung, Seung-Hun (Departments of Food Science and Technology, Chungnam National University) Kim, Jaehan (Departments of Food and Nutrition, Chungnam National University) Kim, Su-Hee (Graduate School of Analytical Science and Technology, Chungnam National University) Ahn, Hyun-Joo (Graduate School of Analytical Science and Technology, Chungnam National University) Song, Kyung Bin (Departments of Food Science and Technology, Chungnam National University)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제57권 제1호
발행연도
2014.1
수록면
91 - 95 (5page)

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Iron-chelating peptide was purified from spirulina protein hydrolysates. Spirulina protein was hydrolyzed using Alcalase and Flavourzyme, and the degree of hydrolysis was determined using a trinitrobenzene sulfonic acid assay and sodium dodecyl sulfate polyacrylamide gel electrophoresis. The spirulina protein hydrolysates were ultra-filtered to isolate the components below 3 kDa, which were then fractionated by Q-Sepharose fast flow and Sephadex G-15 columns. The iron-chelating activity of each fraction was determined, and the peptide with the highest activity was isolated and identified by matrix-assisted laser desorption/ionization-time of flight/time of flight mass spectrometry. Amino acid sequence of the iron-chelating peptide was identified to be Thr-Asp-Pro-Ile(Leu)-Ala-Ala-Cys-Ile(Leu), which has a molecular weight of 802 Da. Moreover, due to its ability to chelate iron, the isolated peptide could be used as an iron supplement.

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