Liquid chromatographic fractionation of small peptides from wine |
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| Authors: | Desportes C Charpentier M Duteurtre B Maujean A Duchiron F |
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| Institution: | Laboratoire d 'Oenologie, Université de Reims Champagne Ardennes, Moulin de la Housse, Reims, France. |
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| Abstract: | Peptides are difficult to isolate from wine because they are present in a complex mixture together with non-peptidic compounds. A method for the isolation, separation and purity assessing of small peptides is proposed. Small peptides (Mr<3000) were isolated from wine by hollow fibre ultrafiltration followed by column chromatography using the gel matrix Sephadex LH20. Fractions obtained by gel filtration on Sephadex LH20 were subjected to HPLC on a porous graphitic carbon column in order to isolate small peptides. Peak purity was then analysed by capillary electrophoresis. |
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