실크섬유의 방사과정에서 실크 세리신의 역할에 관한 고찰(Ⅰ) −실크 세리신 존재 하에서 실크 피브로인의 결정화 및 겔화 거동에 관한 연구− (The Role of Silk Sericin during the Spinning Process of Silk FiberⅠ) −The Effect of Silk Sericin on the Crystallization and Gelation of Silk Fibroin−)

서지정보

· 발행기관 : 한국섬유공학회
· 수록지 정보 : 한국섬유공학회지 / 46권 / 5호 / 289 ~ 294페이지
· 저자명 : 오한진, 김무곤, 이지영, 이기훈

초록

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.

영어초록

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.

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