Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Technical Papers
Production Method for Cyclic Dipeptide Derived from Native Collagen
Fumitaka HayasakaShoko YamamotoYasuo Sakai
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2016 Volume 22 Issue 4 Pages 477-483

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Abstract

In this study, a new method for producing cyclo(-Gly-Pro) using collagen as a raw material was examined. First, collagen was enzymatically hydrolysed and purified to obtain collagen tripeptide (CTP), rich in “Gly-X-Y” tripeptides. After heating this product under atmospheric pressure in an aqueous solution at 95°C for 24 h, purification was achieved by reverse-phase column chromatography. The isolated component was confirmed to be cyclo(-Gly-Pro) through structural analysis by MS and NMR spectroscopies. Purity was determined to be 93.6%, and the recovery rate from CTP was 22%, indicating that much Gly-Pro-Y in CTP contributed to cyclization. The cyclization rate from Gly-Pro-Hyp or Gly-Pro-Ala was much higher than that of Gly-Pro, suggesting that cyclo(-Gly-Pro) was efficiently generated from the Gly-Pro-Y sequence. In summary, this is a simple, practical manufacturing method for producing cyclo(-Gly-Pro) from collagen at low cost with high efficiency.

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© 2016 by Japanese Society for Food Science and Technology
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