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Radiation degradation of silk protein

Abstract

Silk fibroin fiber from the domesticated silkworm Bombyx mori was irradiated using an electron beam accelerator to investigate the application of the radiation degradation technique as a means to solubilize fibroin. The irradiation caused a significant degradation of the fiber. The tensile strength of fibroin fiber irradiated up to 2500 kGy decreased rapidly with increasing dose. The presence of oxygen in the irradiation atmosphere enhanced degradation of the tensile strength. The solubilization of irradiated fibroin fiber was evaluated using the following three kinds of solutions: a calcium chloride solution(CaCl{sub 2}/C{sub 2}H{sub 5}OH/H{sub 2}O=1:2:8 in mole ratio), a hydrochloric acid (0.5 N) and a distilled water. Dissolution of fibroin fiber into these solutions was significantly enhanced by irradiation. Especially, an appreciable amount of water soluble proteins was extracted by a distilled water. (author)
Authors:
Pewlong, W; Sudatis, B; [1]  Takeshita, Hidefumi; Yoshii, Fumio; Kume, Tamikazu [2] 
  1. Office of Atomic Energy for Peace, Bangkok (Thailand)
  2. Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment
Publication Date:
Mar 01, 2000
Product Type:
Conference
Report Number:
JAERI-Conf-2000-003
Reference Number:
EDB-01:011469
Resource Relation:
Conference: Takasaki workshop on bilateral cooperations. Radiation processing of natural polymers, Takasaki, Gunma (Japan), 1-2 Nov 1999; Other Information: 14 refs., 5 figs.; PBD: Mar 2000; Related Information: In: Proceedings of the Takasaki workshop on bilateral cooperations. Radiation Processing of natural polymers, by Kume, Tamikazu; Maekawa, Yasunari [eds.], 184 pages.
Subject:
07 ISOTOPES AND RADIATION SOURCES; FIBERS; IRRADIATION; ELECTRON BEAMS; SILKWORM; RADIOLYSIS; PROTEINS; DISSOLUTION; TENSILE PROPERTIES; OXYGEN; AEROBIC CONDITIONS; OXYGEN ENHANCEMENT RATIO; AQUEOUS SOLUTIONS
OSTI ID:
20128299
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
TRN: JP0050703
Availability:
INIS
Submitting Site:
JPN
Size:
page(s) 146-152
Announcement Date:

Citation Formats

Pewlong, W, Sudatis, B, Takeshita, Hidefumi, Yoshii, Fumio, and Kume, Tamikazu. Radiation degradation of silk protein. Japan: N. p., 2000. Web.
Pewlong, W, Sudatis, B, Takeshita, Hidefumi, Yoshii, Fumio, & Kume, Tamikazu. Radiation degradation of silk protein. Japan.
Pewlong, W, Sudatis, B, Takeshita, Hidefumi, Yoshii, Fumio, and Kume, Tamikazu. 2000. "Radiation degradation of silk protein." Japan.
@misc{etde_20128299,
title = {Radiation degradation of silk protein}
author = {Pewlong, W, Sudatis, B, Takeshita, Hidefumi, Yoshii, Fumio, and Kume, Tamikazu}
abstractNote = {Silk fibroin fiber from the domesticated silkworm Bombyx mori was irradiated using an electron beam accelerator to investigate the application of the radiation degradation technique as a means to solubilize fibroin. The irradiation caused a significant degradation of the fiber. The tensile strength of fibroin fiber irradiated up to 2500 kGy decreased rapidly with increasing dose. The presence of oxygen in the irradiation atmosphere enhanced degradation of the tensile strength. The solubilization of irradiated fibroin fiber was evaluated using the following three kinds of solutions: a calcium chloride solution(CaCl{sub 2}/C{sub 2}H{sub 5}OH/H{sub 2}O=1:2:8 in mole ratio), a hydrochloric acid (0.5 N) and a distilled water. Dissolution of fibroin fiber into these solutions was significantly enhanced by irradiation. Especially, an appreciable amount of water soluble proteins was extracted by a distilled water. (author)}
place = {Japan}
year = {2000}
month = {Mar}
}