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Chemical composition of shells from red (Strongylocentrotus franciscanum) and green (Strongylocentrotus droeba-chiensis) sea urchin
Abstract
The shells from red and green sea urchins accounted for 47.9 and 40.7% of their body weights, respectively. The red and green sea urchin shells contained 91.08 and 90.77% minerals and 4.06 and 4.99% proteins, respectively. The shells did not contain any chitin. Sea urchin shells had a relatively large amount of naphthoquinone pigments, 121 mg per 100 g in red and 163 mg per 100 g in green species. The small quantities of glucosamine detected (20 mg/g in red and 25 mg/g in green sea urchins) originated from mucopolysaccharides present in a layer of connective tissues attached to the shells. Using EI–MS spinochromes A, B, C, and D were found in fractions of naphthoquinone pigments separated from shells of green sea urchin by Sephadex LH-20 column chromatography. The presence of the molecular ion of spinochrome D in its mass spectrum of well separated fractions V–VII may suggest that this compound can appear as a complex with organic compounds and could be a derivative of benzene dicarboxylic acid.
Authors (3)
-
Ryszard Amarowicz
- Polish Academy of Sciences Institute of Animal Reproduction and Food Research
-
Fereidoon Shahidi
- Memorial University of Newfoundland Department of Biochemistry
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
FOOD CHEMISTRY
no. 133,
edition 3,
pages 822 - 826,
ISSN: 0308-8146 - Language:
- English
- Publication year:
- 2012
- Bibliographic description:
- Amarowicz R., Synowiecki J., Shahidi F.: Chemical composition of shells from red (Strongylocentrotus franciscanum) and green (Strongylocentrotus droeba-chiensis) sea urchin// FOOD CHEMISTRY. -Vol. 133, iss. 3 (2012), s.822-826
- Verified by:
- Gdańsk University of Technology
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