Purification and Characterization of Antioxidant Peptides from Oyster (Saccostrea cucullata) Hydrolysate and the Anticancer Activity of Hydrolysate on Human Colon Cancer Cell Lines

  • S. Umayaparvathi
  • M. Arumugam
  • S. Meenakshi
  • Gerald Dräger
  • Andreas Kirschning
  • T. Balasubramanian


The focus of the study was to investigate antioxidant activity and characterize antioxidant peptides from oyster (Saccostrea cucullata) protein hydrolysate. The protease hydrolysate of oyster exhibited strong potential to donate hydrogen and was able to scavenge Hydrogen peroxide, Hydroxyl and DPPH radicals. Due to the high antioxidant potential, hydrolysate was purified in Sephadex G-25 gel filtration chromatography. The active peptide fraction was further purified by UPLC-MS. Totally seven antioxidant peptides were collected. Among seven peptides (SCAP 1–7), three peptides (SCAP 1, 3 and 7) had highest scavenging ability on DPPH radicals. The amino acid sequence and molecular mass of purified antioxidant peptides (SCAP1, SCAP3 and SCAP7) were determined by Q-TOF ESI mass spectroscopy and structures of the peptides were Leu-Ala-Asn-Ala-Lys (MW = 515.29 Da), Pro-Ser-Leu-Val-Gly-Arg-Pro–Pro-Val-Gly-Lys-Leu-Thr-Leu (MW = 1,432.89 Da) and Val-Lys-Val-Leu-Leu-Glu-His-Pro-Val-Leu (MW = 1,145.75 Da), respectively. The oyster hydrolysate was tested for cell cytotoxicity on Vero (kidney epithelial cells of the African Green Monkey) and HT-29 (human colon carcinoma) cell lines. It was found that the hydrolysate did not show any cytotoxic effect for Vero cell lines and exerted a significant cytotoxic effect on HT-29 cell lines. We thus conclude that the anticancer and antioxidative hydrolysate from oyster (S. cucullata) may be useful ingredients in food and nutraceutical applications.


Oyster Saccostrea cucullata Enzymatic hydrolysis Protein hydrolysate Antioxidant peptide DPPH Electrospray ionization mass spectrometry 



The authors would like to thank Ministry Of Earth Sciences for financial support, under the “Drugs from sea” programme and the authors are grateful to the authorities of Annamalai University for providing the necessary facilities.

Conflict of interest

S. Umayaparvathi, M. Arumugam, S. Meenakshi, G. Draeger, A. Kirschning and T. Balasubramanian declare that they have no conflict of interest.

Statement of informed consent/Human and animal rights

This article does not contain any studies with human or animal subjects performed by the any of the authors.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • S. Umayaparvathi
    • 1
  • M. Arumugam
    • 1
  • S. Meenakshi
    • 1
  • Gerald Dräger
    • 2
  • Andreas Kirschning
    • 2
  • T. Balasubramanian
    • 1
  1. 1.Centre of Advanced Study in Marine Biology, Faculty of Marine SciencesAnnamalai UniversityParangipettaiIndia
  2. 2.Institute of Organic ChemistryUniversity of HannoverHannoverGermany

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