Interfacial Behavior of Fatty-Acylated Sericin Prepared by Lipase-Catalyzed Solid-Phase Synthesis

• OGINO Masato

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology

• TANAKA Rie

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology

• HATTORI Makoto

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology

• YOSHIDA Tadashi

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology

• YOKOTE Yoshiko

  Department of Chemistry, Faculty of Science, Josai University

• TAKAHASHI Koji

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology

抄録

Fatty-acylated sericin {1:0.7 molar ratio of sericin (M_r 18,700) to oleic acid} was prepared by lipase-catalyzed solid-phase synthesis in n-hexane containing oleic acid to endow sericin with interfacial properties. Acylation with oleic acid was confirmed by ¹H-NMR. The fatty-acylated sericin exhibited superior emulsifying activity index and emulsion stability in the presence of 0–0.5 M NaCl, in a temperature range of 30–80 °C and pH range of 2–7, as compared with the control sericin. The fatty-acylated sericin (1:0.4 molar ratio) prepared by using low-molecular-weight sericin (M_r 5,000) also exhibited superior emulsifying properties. The affinity of the fatty-acylated sericin to a hydrophobic surface as evaluated by a biomolecular interaction analyzer was about twice as much as that of the control sericin. The fatty-acylated sericin showed retarded water vaporization, similar to the control sericin, indicating good retention of moistness, and was adsorbed four times as much to defatted wool with little desorption as compared with the control sericin.

収録刊行物

• Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ

  Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ 70 (1), 66-75, 2006

  公益社団法人 日本農芸化学会

キーワード

• sericin
• acylation with lipase
• interfacial behavior
• emulsifying ability
• moistness

詳細情報

• CRID: 1390001206475432832
• NII論文ID: 10018535067
• NII書誌ID: AA10824164
• DOI: 10.1271/bbb.70.66
• COI: 1:CAS:528:DC%2BD28XhsVGmt7c%3D
• ISSN: 13476947
• ISSN: 09168451
• NDL書誌ID: 7791224
• PubMed: 16428822
• Web Site: http://libir.josai.ac.jp/il/meta_pub/G0000284repository_JOS-09168451_70_66
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7791224
• Web Site: http://www.tandfonline.com/doi/pdf/10.1271/bbb.70.66
• 本文言語コード: en
• データソース種別:
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  • IRDB
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  • Crossref
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