섬유

Surface Layer of Wool. II. Dityrosine in Wool.

  • 출판일1999.02
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 439
Research on the surface layer of wool determined dityrosine concentration in wool and in its morphological components, the cortex and cuticle. Dityrosine sites include the tyrosine-rich proteins. Within the cuticle, dityrosine occur in the intercellular cement and the A-layer. Within the cortex, dityrosine occur in the intermicrofibrillar matrix where the tyrosine-rich proteins are located. Dityrosine is not an artifact of acid hydrolysis but a natural component of wool. Experiments on the in vitro formation of dityrosine in wool fibers showed that its concentration increased on oxidation with hydrogen peroxide or by ultraviolet irradiation. Dityrosine may be involved in the yellowing of bleached wool fibers. Fluorescence studies showed that wool fibers had a natural blue fluorescence when excited at 365 nanometers for which dityrosine was probably not responsible. 54 refs.
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