Repository of Research and Investigative Information

Repository of Research and Investigative Information

Hormozgan University of Medical Sciences

Identification and antioxidant of polyhydroxylated naphthoquinone pigments from sea urchin pigments of Echinometra mathaei

(2016) Identification and antioxidant of polyhydroxylated naphthoquinone pigments from sea urchin pigments of Echinometra mathaei. Med Chem Res.

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Abstract

Abstract The gonads of sea urchins are prized as a component of the highly priced sushi called ‘‘uni’’ in Japanese customary nutrition. After removal of the edible gonads, the remaining shell and spines are usually discarded. They are known to possess polyhydroxylated naphthoquinone (PHNQ) pigments that are biologically active in the calcareous skeleton of the shells and spines. The present study used the reducing power assay and 1, 1-diphenyl-2-picrylhydrazyl radical scavenging assay to assess total antioxidant capacity using standard methods. The pigments were shown to have potent DPPH radical scavenging ability. The presence of the PHNQ pigments (spinochrome B and C, echinochrome A and spinochrome A) was confirmed using a photodiode array detector and LC–ESI–MS. The findings suggest that sea urchin shell and spines, most of which are discarded as waste, may serve as a new biologically active resource.

Item Type: Article
Keywords: Polyhydroxylated naphthoquinone � Spinochrome � LC–MS � Antioxidant � Persian Gulf
Subjects: biochemistry
Divisions: Research Vice-Chancellor Department > Molecular Medicine Research Center
Depositing User: مرکز تحقیقات پزشکی مولکولی
URI: http://eprints.hums.ac.ir/id/eprint/1299

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