Thermal Behavior of Fowl Feather Keratin

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概要

• 論文の詳細を見る

• Differential scanning calorimetry (DSC) was applied to elucidate the thermal behavior of fowl feather keratins (barbs, rachis, and calamus) with different morphological features. The DSC curves exhibited a clear and relatively large endothermic peak at about 110–160 °C in the wet condition. A considerable decrease in transition temperature with urea and its helical structure content estimated by Fourier transform infrared spectroscopy (FT-IR), and the disappearance of one of the diffraction peaks with heating at 160 °C for 30 min, indicated that DSC could be used to evaluate the thermal behavior of keratin. Barbs showed a lower denaturation temperature than rachis and calamus. The pulverized samples showed a slightly higher denaturation temperature than the native samples. In the dry condition, thermal transition occurred in a markedly higher temperature region close to 170–200 °C. It is hence concluded that fowl feather keratins have very high thermal stability, and that the elimination of water brings about even greater thermal stability.

• 社団法人 日本農芸化学会の論文
• 2004-09-23

著者

• TAKAHASHI Koji

  Department of Pediatrics, Nihon Kokan Hospital

• Yokote Yoshiko

  Department Of Chemistry Faculty Of Science Josai University

• Takahashi K

  School Of Life Sciences Tokyo Univ. Of Pharmacy And Life Sciences

• HATTORI Makoto

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture an

• YAMAMOTO Hirosaburo

  Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture an

• Yamamoto H

  Department Of Applied Biological Science Faculty Of Agriculture Tokyo University Of Agriculture And

• Hattori M

  Department Of Applied Biological Science Faculty Of Agriculture Tokyo University Of Agriculture And

• Yamamoto Hirosaburo

  Department Of Applied Biological Science Faculty Of Agriculture Tokyo University Of Agriculture And

• Takahashi K

  Dep. Of Applied Biological Sci. Fac. Of Agriculture Tokyo Univ. Of Agriculture And Technol.

• Hattori Makoto

  Department Of Applied Biological Science Tokyo University Of Agriculture And Technology

• Takahashi Koji

  Department Of Chemistry And Chemical Engineering Yamagata University

• Hattori Makoto

  Department Of Agricultural Chemistry The University Of Tokyo

• Takahashi Koji

  Department Of Aeronautics And Astronautics Kyushu University

• TAKAHASHI Koji

  Departent of Materials Science and Engineering,Faculty of Engineering,Yamagata University

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