한국인 모유의 지방산 조성과 타우린 농도의 상관관계에 관한 연구

Taurine Concentrations Are Closely Associated with Fatty Acids Concentrations in Breast Milk from Koreans

  • 박태선 (연세대학교 생활대학 식품영양학과)
  • 발행 : 1998.01.01

초록

Kong chain $\omega$3 & $\omega$6 fatty acids and taurine have been suggested to have structural and /or functional roles in the brain. The purpose of this study was to evaluate the changes in the percentage of fatty acids and taurine concentration in human milk obtained from Korean mothers(n=37) as lactation proceeds from birth to 5wks postpartum , and to determine the correlation between taurine concentration and fatty acid composition in breast milk. Level of fatty acids and taurine in breast milk were measured by GLC and HPLC, respectively. The percentages of medium -chain saturated fatty acids(10 : 0, 12 : 0 & 14: 0) were increased significantly , while percentages of long-chain saturated fatty acids(22 :0 & 24 : 0), and most of the long chain $\omega$6 and $\omega$3 fatty acids(20 : 3$\omega$6 , 20 :4$\omega$6, 22 :4$\omega$6 , 22 :5$\omega$6, 22 :5$\omega$3 & 22 : 6$\omega$3) were decreased significantly in mature milk (5 wks postpartum ) as compared to the colostrum. Taurine concentrations in colostrum and mature milk from Korean mothers were 549 $\pm$58 and 233 $\pm$41nmol/ml , respectively. Taurine concentrations in human milk was negatively correlated with the percentages of medium -chain saturated fatty acids ( 10 : 0 &12 : 0), and positively correlated with the percentages of long-chain saturated fatty acids( 16 :0, 20 : 0, 22 : 0& 24 : 0) and long-chain monounsaturated fatty acids( 20 : 1, 22 : 1 & 24 ; 1). Taurine concentration in human milk was positively correlated with elongation indices of both $\omega$6 and $\omega$3 fatty acids, and negatively correlated with the desaturation index of $\omega$6 fatty acids. These close relationships between fatty acids compositions and taurine level in human milk are worth pursing further investigation, especially with regard to their common roles in retina and brain development.

키워드

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