文章基本信息

标题：Acidos grasos omega-3 en la nutrición ¿como aportarlos?
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作者：Alfonso Valenzuela B. ; Rodrigo Valenzuela B.
期刊名称：Revista Chilena de Nutrición
印刷版ISSN：0716-1549
电子版ISSN：0717-7518
出版年度：2014
卷号：41
期号：2
页码：205-211
语种：Spanish
出版社：Sociedad Chilena de Nutrición, Bromatología y Toxicología
摘要：...
其他摘要：The benefits derived from the consumption of omega-3 fatty acids EPA and DHA are strongly documented existing recommendations for their intake. Marine products, specifically fish, are the most obvious recommendation. However, the availability of this resou - rce is at present increasingly limited. Marine oils rich in omega-3 fatty acids are also increasingly scarce and very expensive. Fish oil, which is highly susceptible to oxidation, can be protected by procedures of encapsulation, microencapsulation o nanoencap - sulation, but the amount of omega-3 fatty acids provided by the last two technologies is very small, and capsules are not well tolerated by everyone. Marine algae and krill oil are another two alternatives for omega-3 availability and consumption. However, algae culture is expensive and krill oil is scarce and of high cost. The possibility to obtain residual phospholipids from fish meal is a technological alternative now under experimental investigation. The harvesting of terrestrial vegetables which produces fruits and/ or seeds with a high content of alpha linolenic acid (ALA), the metabolic precursor of EPA and DHA, is a novel interesting alter - native to provide omega-3 fatty acids. However, it is necessary to demonstrate how effective the metabolic bioconversion of ALA into EPA and DHA is before encouraging the harvest and produc - tion of these vegetables oils, this being a pending challenge. The present work critically reviews the alternatives at present available to incorporate omega-3 fatty acid in our diet.
关键词：Omega-3 fatty acids; availability of omega-3 fatty acids; procedures to obtain omega-3 fatty acids; new sources of omega-3 fatty acids