International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Effect of wet treatment on the structure of various silkworm strain cocoons with different rearing seasons

  • Lee, Hye Gyeoung (Department of Biofibers and Biomaterials Science, Kyungpook National University) ;
  • Bae, Do Gyu (Department of Biofibers and Biomaterials Science, Kyungpook National University) ;
  • Um, In Chul (Department of Biofibers and Biomaterials Science, Kyungpook National University)
  • Received : 2022.01.04
  • Accepted : 2022.01.21
  • Published : 2022.03.31
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Abstract

In this study, cocoons from different silkworm strains and rearing seasons were collected and immersed in water at elevated temperatures to investigate the effect of a wet treatment on their morphology and crystallinity. Untreated cocoons exhibited different crystallinities depending on the silkworm strain and rearing season; however, no distinct changes in their morphological structure were observed. Furthermore, after wet treatment, the differences in the crystallinities of cocoons disappeared. In addition, wet treatment of degummed silk (i.e., fibroin) did not change its crystallinity. These results indicate that different crystallinities of the untreated cocoons collected from various silkworm strains and rearing seasons are due to the different characteristics of sericin in the cocoons.

Keywords

Acknowledgement

This study was performed with the support of the Research Program for Agricultural Science & Technology Development (PJ016130), National Academy of Agricultural Science, Rural Development Administration, Republic of Korea.

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