Red blood cell trans-18:1 isomeric profile correlates with subcutaneous fat and muscle profiles in beef cattle

详细信息	查看全文 | 推荐本文 |

• 作者：Noelia Aldai^a ; Michael E.R. Dugan^b ; ^{Mike.Dugan@agr.gc.ca} ; David C. Rolland^b ; Jennifer L. Aalhus^b
• 关键词：Beef ; Trans fatty acids ; Red blood cells ; Subcutaneous fat ; Muscle ; Correlation
• 刊名：Meat Science
• 出版年：2012
• 期刊代码：78_03091740
• 类别：abs
• 出版时间：June, 2012
• 卷：91
• 期：2
• 页码：203-206
• 文件大小：441 K

摘要

Due to significant variation in polyunsaturated fatty acid biohydrogenation products in beef it would be useful to determine if levels of trans-18:1 isomers in samples collected ante-mortem are correlated with those collected post-mortem. Beef blood (RBC), subcutaneous fat (SC) and muscle (intramuscular fat; IM) samples were collected from an experiment with dietary vitamin E with/without flaxseed (n = 80) and fatty acids analyzed. Across treatments, correlation analysis of total and individual trans-18:1 isomers were performed between tissues. Correlations between SC and IM were highly significant for all individual and total trans-18:1. RBC trans-18:1 were also well correlated with other tissues except for vaccenic acid. Levels of 10t-, 12t- and 13t/14t- were amongst the best correlated between RBC and SC and IM profiles. Levels of 6t/7t/8t-, 9t-, and 15t-18:1 showed significant but lower correlation factors particularly between RBC and SC. These results confirm the possibility of utilizing blood as a non-destructive sample to predict the total and isomeric profile of trans-18:1 in beef.