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Nutritional Evaluation in Five Species of Tuna

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dc.contributor.author Karunarathna, K.A.A.U.
dc.contributor.author Attygalle, M.V.E.
dc.date.accessioned 2013-04-24T03:51:23Z
dc.date.available 2013-04-24T03:51:23Z
dc.date.issued 2010
dc.identifier.citation Karunarathna, K.A.A.U., & Attygalle, M.V.E. (2010). Nutritional Evaluation in Five Species of Tuna. Vidyodaya Journal of Science, 15(1&2), 7-16. en-US
dc.identifier.uri http://dr.lib.sjp.ac.lk/handle/123456789/1012
dc.description.abstract Proximate composition was determined in different body parts (skin, white muscle, red muscle, head muscle and belly flap) of five species of tuna; Katsuwonus pelamis (skipjack, balaya,) , Thunnus albacares (yellow fin tuna, kellawalla), Auxis rochei (Bullet, tuna, ragoduwa), Auxis thazard (frigate tuna, alagoduwa) and Euthynnus affinis (kawakawa, attawalla.) obtained from the Negombo fish landing site. Fatty acid profiles were also analyzed in the skin, red and white muscle of the five species. No significant differences between the tuna species were observed with respect to protein, total fat, and moisture contents. The ash content in Frigate tuna and Kawakawa were significantly higher than the other species. The muscle tissue in all the species was rich in protein (20-25%) and low in fat «2%). The skin of all the species recorded high protein (27-32%) and lipid (6-8%) levels. The moisture content was low in the skin compared to the other tissues. All five species of tuna studied here recorded less SFA (11-33%) and more PUFA (50-74%) in the muscle tissues. The MUF A content in muscle tissue ranged from 8-25% and all the species contained both EPA (eicosapentaenoic acid, C20:5n-3) (2- 19.7%) and DHA (docosahexaenoic acid, C22:6n-3) (4-42%) in varying amounts. en_US
dc.language.iso en en_US
dc.subject Tuna en_US
dc.subject Proximate composition, en_US
dc.subject n-3 fatty acids en_US
dc.subject n-6 fatty acids en_US
dc.subject EPA en_US
dc.subject DHA en_US
dc.title Nutritional Evaluation in Five Species of Tuna en_US
dc.type Article en_US
dc.date.published 2010


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