アルカリ処理コラーゲン繊維のアミノ酸分析値に基づく水分収着特性

概要

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Experimentally measured water vapor sorption isotherms (SIe) of alkaliprocessed collagen fibers C-20 and C-30 were compared with the theoretical isotherms (SIt) to elucidate the change of the microporous structure caused by the alkali-treatment during 20 and 30 d. The amino acid compositions of the collagen fibers were analyzed, then SIts were calculated from multiplying the degree of hydrophilicity of the sorption site. The amounts of sorbed water of SIe were greater than those of SIt in the range of the water activity higher than 13%. The great difference was observed at C-20 rather than C-30. The difference between SIe and SIt was attributed to the large amount of sorbed water in the micropores. This result confirms that the change of collagen fiber during alkali process is explained by the microporous structure, not by the stability of the triple-helix structure.
社団法人日本薬学会の論文
1997-04-25