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STUDY ON VITAMIN E LEVEL IN BREAST MILK OF DIFFERENT STAGES

Zhao SX1, Zhu CL2, Jiang M1

1 The 2nd Hospital of China Medical University, Shenyang, China

2 The Affiliated Hospital of Chengde Medical College, Chengde, China

 

Objective: To study the concentration of α-tocopherol during the three stages of colostrum, transition milk and mature milk, and investigate the relationship among them.

Methods: The concentration of α-tocopherol during the three stages of colostrum, transition milk and mature milk of 40 breast-feeding women in North China was measured with High Performance Liquid Chromatograph (HPLC). Then correlation analysis between any 2 of these 3 concentrations was performed.

Results: In the 3 phase of colostrum, transition and mature milk, concentration of α-tocopherol decreased, there were statistically significant difference between colostrum and transition milk (P<0.01), between colostrum and mature milk (P<0.01) and between transition and mature milk (P<0.05). There were positive correlation between transition milk and colostrum and between mature and transition milk (r=0.436 and 0.606, respectively, P<0.01).

Conclusion: The concentration of α-tocopherol in colostrum is the tiptop, it is 2 and 2.7 times higher than that in transition milk and in mature milk respectively. The concentration of α-tocopherol in colostrum may affect that in transition milk and vice versa.