1968 Volume 24 Issue 7 Pages 330-335
This paper deals with the relation between the destructing degree of destruction due to oxidation and the pelicular depression phenomena of silk fibroin of Bombyx mori.
Silk fibroin of Bombyx mori was oxidized in textural form with 2 mol hydrogen peroxide solution for the different length of time (2_??_12 hours) at 70°C and then the observation of the surface was done mainly on the peculiar depression phenomena with the electron microscope.
The results obtained are are follows;
In the Oxidation Bombyx mori under the previous treatments a peculiar depression phenomenon was observed, but not seen papers6, 7, 8, 9, 10).
Due to the oxidation with hydrogen peroxide, destruction and degradation develop accompanied by many dotted hollows, linear or circular and rectangular depression and growth of fissures.
Judging from the above results and variation of the physical properties, it may be conceived that those peculiar depression phenomena become significant with advancing of the oxidation and are related to tyrosine in silk fibroin.
