Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

The Role of Silk Sericin during the Spinning Process of Silk Fiber(I) - The Effect of Silk Sericin on the Crystallization and Gelation of Silk Fibroin -

실크섬유의 방사과정에서 실크 세리신의 역할에 관한 고찰(I) - 실크 세리신 존재 하에서 실크 피브로인의 결정화 및 겔화 거동에 관한 연구 -

  • Oh, Han-Jin (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Kim, Moo-Kon (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University) ;
  • Lee, Ji-Young (National Instrumentation Center for Environmental Management, Seoul National University) ;
  • Lee, Ki-Hoon (Department of Biosystems & Biomaterials Science and Engineering, Seoul National University)
  • 오한진 (서울대학교 바이오시스템.소재학부) ;
  • 김무곤 (서울대학교 바이오시스템.소재학부) ;
  • 이지영 (서울대학교 농생명과학공동기기원) ;
  • 이기훈 (서울대학교 바이오시스템.소재학부)
  • Published : 2009.10.31
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Abstract

The effect of sericin on the crystallization and gelation of fibroin was studied. We used urea-mercaptoethanol for extraction of sericin from silkworm cocoons. The degradation of sericin during extraction could be minimized and the molecular weight of sericin was in the range of 10-400 kDa. Based on the result of time-resolved FTIR-ATR spectra, the crystallization of fibroin was retarded in the presence of urea-mercaptoethanol extracted sericin like as previously reported hot-water extracted sericin. The gelation time of fibroin was also delayed in the presence of sericin. Interestingly same delaying effect could be also observed when fibroin and sericin were immiscible. These results show that sericin might have more active role in the spinning process of silk fiber.

Keywords

References

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