General characteristics of Antheraea yamamai silkworm cocoon cultured in Korea
2015
Lee, K.G., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Chung, D.E., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Kim, K.Y., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Jo, Y.Y., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Kim, H., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Kim, S.K., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea | Kweon, H.Y., National Academy of Agricultural Science, RDA, Wanju, Republic of Korea
Antheraea yamamai silkworm cocoon is considered as a natural biocompatible materials, but can not be used as medical resources due to its difficult processability. In this study, we examined the general characteristics including cocoon shell weight and structural and thermal properties of Antheraea yamamai silkworm cocoon. The cocoon shell weight and thickness of wild silkworm cocoon was 0.528 g and 0.424 mm, respectively. The cocoon has yellow-green color in outside cocoon but white in inner layer cocoon. Amino acid analysis showed that the main amino acid of Antheraea yamamai cocoon is alanine, glycine, serine, aspartic acid, tyrosine and arginine. X-ray diffractometry showed that strong diffraction peaks at 2¥è = 16.8o, 20.4o, corresponded to beta-sheet structure and sharp diffraction peaks at 2¥è = 15.0o, 24.3o, 30.0o due to the presence of calcium oxalate on cocoon surface. Antheraea yamamai cocoon was degraded at 370oC These results might be used as basic information for development of non-textile materials using Anthereae yamamai silkworm cocoon.
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