Characterization of tyrosine-rich Antheraea pernyi silk fibroin hydrolysate

Antheraea pernyi silk fibroin (SF) hydrolysate were characterized using UV–VIS spectrometer, amino acid composition and heavy metal contents to explore its potential sources for food or cosmetic additives. The hydrolyzed A. pernyi SF was separated into two parts: (a) SFA, alanine-rich fraction and (...

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Bibliographic Details
Published in:International journal of biological macromolecules 2011, Vol.48 (1), p.223-226
Main Authors: Lee, Kwang-gill, Kweon, HaeYong, Yeo, Joo-hong, Woo, SoonOk, Han, SangMi, Kim, Jong-Ho
Format: Article
Language:English
Subjects:
Animals
Antheraea pernyi
Chromatography, Gel
Fibroins - analysis
Fibroins - chemistry
Heavy metal contents
Hydrolysis
Metals, Heavy - analysis
Moths - chemistry
Silk fibroin
Spectrophotometry, Ultraviolet
Tyrosine
Tyrosine - chemistry
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Summary:Antheraea pernyi silk fibroin (SF) hydrolysate were characterized using UV–VIS spectrometer, amino acid composition and heavy metal contents to explore its potential sources for food or cosmetic additives. The hydrolyzed A. pernyi SF was separated into two parts: (a) SFA, alanine-rich fraction and (b) SFB, tyrosine-rich fraction. SFB exhibited strong absorption peaks at 210 and 280 nm due to the presence of the tyrosine. Heavy metal analysis showed that arsenic and mercury did not detect. Other heavy metals, which includes lead, cadmium, etc., were recorded only a trace amount. Therefore, A. pernyi SF hydrolysate could be safely used as sources of food, cosmetic and pharmaceuticals.
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2010.09.020