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Title

Carotenoid Profile in Maternal/Cord Plasma and Changes in Breast Milk along Lactation and Its Association with Dietary Intake: A Longitudinal Study in a Coastal City in Southern China.

Authors

Dai, Xinyao; Yin, Huanhuan; Zhang, Jing; Tian, Fang; Cai, Xiaokun; Mao, Yingyi; Sun, Hanxiao; Wang, He; Li, Xiang; Zhu, Hui-Lian; Zhang, Lishi; Chen, Jinyao; Zhao, Yanrong

Abstract

In this study, changes of carotenoids in breast milk were observed longitudinally for up to one year. Our study aimed to analyze the profile of carotenoids in breast milk and maternal/cord plasma and its correlation with dietary intake in Guangzhou. Plasma and breast milk samples of five stages during lactation (i.e., colostrum; transitional milk; and early, medium, and late mature milk) were collected from lactating mothers. The food frequency questionnaire (FFQ) was used for collecting data on dietary intake in the corresponding stages. Levels of lutein, zeaxanthin, β-cryptoxanthin, β-carotene, and lycopene were analyzed by high-performance liquid chromatography. We found that the total carotenoid level decreased gradually with the extension of lactation and eventually stabilized. Among them, the content of lutein increased from colostrum to transitional milk and decreased thereafter until it plateaued in the mature milk. Furthermore, lutein was reported as the dominant nutrient in maternal plasma, cord plasma, transitional milk, and mature milk at up to 400 days postpartum, while beta-carotene was predominant in colostrum. The content of β-carotenoid in middle and late mature breast milk was related to dietary intake (r = 1.690, p < 0.05). Carotenoid level in cord blood was lower than that in the mother's plasma and was related to the carotenoid intake in the mother's diet. Correlation of carotenoids between maternal and umbilical cord blood, breast milk, and maternal blood could well reflect the transport of carotenoids. These findings may help to guide mothers' diets during breastfeeding.

Subjects

CHINA; CAROTENOID analysis; MOTHERS; LACTATION; BETA carotene; HIGH performance liquid chromatography; BREAST milk; CRYPTOXANTHIN; LUTEIN; CAROTENOIDS; CORD blood; ZEAXANTHIN; LYCOPENE; COLOSTRUM; QUESTIONNAIRES; LONGITUDINAL method

Publication

Nutrients, 2022, Vol 14, Issue 9, p1989

ISSN

2072-6643

Publication type

Academic Journal

DOI

10.3390/nu14091989

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