Publication
Contents of conjugated linoleic acid isomers in ruminant-derived foods and estimation of their contribution to daily intake in Portugal
| dc.contributor.author | Martins, Susana V. | |
| dc.contributor.author | Lopes, Paula A. | |
| dc.contributor.author | Alfaia, Cristina M. | |
| dc.contributor.author | Ribeiro, Veronica S. | |
| dc.contributor.author | Guerreiro, Teresa V. | |
| dc.contributor.author | Fontes, Carlos M. G. A. | |
| dc.contributor.author | Castro, Matilde F. | |
| dc.contributor.author | Soveral, Graca | |
| dc.contributor.author | Prates, Jose A. M. | |
| dc.date.accessioned | 2015-12-30T10:18:01Z | |
| dc.date.available | 2015-12-30T10:18:01Z | |
| dc.date.issued | 2007 | |
| dc.description.abstract | The present study provides a detailed overview of the contents of conjugated linoleic acid (CLA) isomers in the most consumed Portuguese CLA-rich foods (milk, butter, yoghurt, cheese, beef and lamb meat), by using silver ion-HPLC. In addition, the contribution of these ruminant-derived foods to the daily intake of CLA isomers was estimated based on Portuguese consumption habits. The total CLA concentration in milk and dairy products ranged from 4.00 mg/g fat in yoghurt to 7.22 mg/g fat in butter, and, regarding meats, from 4-45 mg/g fat in intensively produced beef to 11.29 mg/g fat in lamb meat. The predominant CLA isomers identified in these products were cis-9,trans-11 (59.89-79.21 %) and trans-7,cis-9 (8.04-20.20%). The average estimated total CLA intake for the Portuguese population was 73.70mg/d. Milk and cheese are probably the two products with the highest contribution to the final CLA intake, as a result of their high fat content and consumption values. The results also suggested that cis-9,trans-11 and trans-7,cis-9 are the isomers most represented, with, respectively, 76.10 and 12.56 % of the total CLA intake. Being the first detailed report on the contents of total and individual CLA isomers in Portuguese commercial ruminant-derived foods, we further discuss the implication of the results for diet characteristics and human health. | |
| dc.format | application/pdf | |
| dc.identifier.citation | BRITISH JOURNAL OF NUTRITION. - Vol. 98, n. 6 (DEC 2007), p. 1206-1213 | |
| dc.identifier.doi | http://dx.doi.org/10.1017/S0007114507781448 | |
| dc.identifier.issn | 0007-1145 | |
| dc.identifier.uri | http://hdl.handle.net/10451/21367 | |
| dc.language.iso | eng | |
| dc.publisher | CAMBRIDGE UNIV PRESS | |
| dc.subject | Nutrition & Dietetics | |
| dc.title | Contents of conjugated linoleic acid isomers in ruminant-derived foods and estimation of their contribution to daily intake in Portugal | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 1213 | por |
| oaire.citation.startPage | 1206 | por |
| oaire.citation.title | BRITISH JOURNAL OF NUTRITION | por |
| oaire.citation.volume | Vol. 98 | por |
| rcaap.rights | restrictedAccess | |
| rcaap.type | article |