Boyle F G, Yuhas R J, Lien E L
Wyeth-Ayerst Laboratories, Philadelphia, Pa. USA.
Ann Nutr Metab. 1996;40(4):234-42. doi: 10.1159/000177927.
Soy oil or corn oil may be employed to provide essential fatty acids in infant formulas. Both of these sources are high in linoleic acid; soy oil contains modest levels of alpha-linolenic acid, while corn oil contains very low levels of this essential omega 3 fatty acid. We examined the omega 3 long-chain polyunsaturated fatty acid (LCP) accretion in red blood cells, liver, and brain phospholipids of rats on diets containing infant formula fat blends with essential fatty acids provided from soy and/or corn oil. Although modest alterations occurred in the red blood cell omega 3 LCP fatty acid status, substantially larger changes were noted in liver LCP profiles. Due to the relatively mature nature of the rats employed in this experiment, no alterations were noted in brain fatty acid profiles. In conclusion, we have observed substantial tissue differences in animals fed soy or corn oil containing diets. It appears that corn oil is inappropriate for use in infant formulas.
大豆油或玉米油可用于在婴儿配方奶粉中提供必需脂肪酸。这两种来源的亚油酸含量都很高；大豆油含有适量的α-亚麻酸，而玉米油中这种必需的ω-3脂肪酸含量极低。我们研究了在含有由大豆油和/或玉米油提供必需脂肪酸的婴儿配方奶粉脂肪混合物的饮食中，大鼠红细胞、肝脏和脑磷脂中ω-3长链多不饱和脂肪酸（LCP）的蓄积情况。尽管红细胞ω-3 LCP脂肪酸状态发生了适度变化，但肝脏LCP谱中出现了更大的变化。由于本实验中使用的大鼠相对成熟，脑脂肪酸谱未观察到变化。总之，我们观察到喂食含大豆油或玉米油饮食的动物存在显著的组织差异。看来玉米油不适用于婴儿配方奶粉。
