Low Tensile Strength Due to Fragile Points on Silkworm Cocoon Filaments

• Mase Keisuke

  National Institute of Agrobiological Sciences (NIAS)

• Okada Eiji

  National Institute of Agrobiological Sciences (NIAS)

• Iizuka Tetsuya

  National Institute of Agrobiological Sciences (NIAS)

• Miyajima Takako

  National Institute of Agrobiological Sciences (NIAS)

• Yamamoto Toshio

  National Institute of Agrobiological Sciences (NIAS)

抄録

In order to develop a new silkworm race that produces strong silk fibers, we investigated the physical properties of the cocoon filaments of our breeding strains, which includes a wide variation in filament size. Our strains showed the largest variation in tensile strength (3.31-4.46 gf/d), being dependent on filament size, with the weakest cocoon filament being that of “PCG”, which spins an ordinary size filament (3.8 denier). The tensile strength of the PCG cocoon filament correlated negatively with the sample length, suggesting many fragile points on the filament. A non-uniform shape with many thin constrictions was also observed in PCG cocoon filaments under microscopic analysis.<br>

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　Ｉｎｓｅｃｔ　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ　ａｎｄ　Ｓｅｒｉｃｏｌｏｇｙ

  Ｊｏｕｒｎａｌ　ｏｆ　Ｉｎｓｅｃｔ　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ　ａｎｄ　Ｓｅｒｉｃｏｌｏｇｙ 84 (2), 2_043-2_048, 2015

  社団法人 日本蚕糸学会

キーワード

• tensile strength
• fragile points
• silkworm cocoon filament
• interracial variation

詳細情報

• CRID: 1390282680173168256
• NII論文ID: 130005109007
• NII書誌ID: AA11558849
• DOI: 10.11416/jibs.84.2_043
• ISSN: 18847978
• ISSN: 13468073
• NDL書誌ID: 026795360
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026795360
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可