Enzymatic Method for Assessing Hair Damage with Reduction and Subsequent Oxidation

  • Yamauchi Chikara
    Arimino Co. Ltd., Higashi Matsuyama Factory, Saitama 355-0812, Japan
  • Okazaki Wataru
    Department of Life Sciences, Toyo University, Gunma 374-0193, Japan
  • Inoue Kiyoshi
    Arimino Co. Ltd., Administrative Pharmacy Section, Tokyo 161-0033, Japan
  • Sakaino Atsushi
    Arimino Co. Ltd., Higashi Matsuyama Factory, Saitama 355-0812, Japan

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抄録

The effect of the p ermanent wave treatment on hair was assessed u sing an enzymatic method. Morphologically only n egligible difference was observed between untreated hair and p ermed hair. After protease treatment, the degradation o f p ermed hair was accelerated and a significant d ifference was observed between untreated and p ermed hair in morphology. There was a high correlation b etween the extent o f d egradation and the h air d amage. The d egradation g radually advanced from the hair surface to i nner h air fiber with increase in h air d amage. Furthermore, the structural change from Alpha-helix to random coil was found to advance from surface to inner h air fiber with an increase in hair damage. The degradation o f d amaged hair with protease appears to be closely related to the d enaturation of Alpha-helical region.

収録刊行物

  • 繊維学会誌

    繊維学会誌 63 (2), 33-38, 2007

    社団法人 繊維学会

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