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首页> 外文期刊>Food & Function >Fatty acid positional distribution in colostrum and mature milk of women living in Inner Mongolia, North Jiangsu and Guangxi of China
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Fatty acid positional distribution in colostrum and mature milk of women living in Inner Mongolia, North Jiangsu and Guangxi of China

机译：粮食脂肪酸位置分布在内蒙古内蒙古妇女初乳和成熟牛奶中

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摘要

In order to investigate the fatty acid composition and distribution in colostrum and mature milk, breast milk samples and 24 h food records were obtained from 65 lactating women across three regions in China (Inner Mongolia, North Jiangsu and Guangxi). Fatty acid methyl esters were prepared by standard methods and separated and identified by gas chromatography. Compared with the Chinese breast milk fatty acid data 10 years ago, SFA and trans fatty acids (TFA) in breast milk decreased, while PUFA increased in the present study. Most SFA (C16:0, C15:0, C14:0), cis-C16:1 and several LC-PUFA (C22:5n-3 and C22:6n-3) were predominantly acylated at the sn-2 position. The cis-C17:1 and C22:6n-3 were distributed equally in three positions of triacylglycerol (TAG). Whereas, TFA, conjugated linoleic acids (CLA), cis-C18:1, C18:2n-6, C18:3n-3 and C20:5n-3 were acylated at the sn-1, 3 positions of TAG in human milk. The composition of fatty acids in breast milk was closely related to the diet of lactating mothers. PUFA in breast milk was negatively correlated with the intake of protein, fat and meat, but positively correlated with the intake of carbohydrates. MUFA of human milk was negatively correlated with the intake of dairy products, eggs, fish and shrimp. SFA in breast milk was positively correlated with the maternal intake of meat. In addition, the present results showed that the composition of total fatty acids and sn-2 fatty acids in breast milk varied with the lactation period and the geographical regions in China; however, the regiospecific fatty acid profile seemed not to be affected by the lactation time and regions, although the quantities at each position could be changed.
机译：为了探讨脂肪酸组成和初乳和成熟乳的分布，在中国三个地区（内蒙古，江苏和广西内蒙古）的65名哺乳期妇女中获得母乳样品和24小时食物记录。通过标准方法制备脂肪酸甲酯并通过气相色谱分离并鉴定。与中国母乳脂肪酸数据相比，10年前，SFA和反式脂肪酸（TFA）在母乳中降低，而PUFA在本研究中增加。大多数SFA（C16：0，C15：0，C14：0），CIS-C16：1和几种LC-PUFA（C22：5N-3和C22：6N-3）主要在Sn-2位置酰化。 CIS-C17：1和C22：6N-3同样地分布在三酰基甘油（标签）的三个位置。然而，TFA，缀合的亚油酸（CLA），CIS-C18：1，C18：2N-6，C18：3N-3和C20：5N-3在SN-1中酰化人乳的3个标签位置。母乳中脂肪酸的组成与哺乳母亲的饮食密切相关。母乳中的PUFA与蛋白质，脂肪和肉的摄入量呈负相关，但与碳水化合物的摄入量呈正相关。与乳制品，鸡蛋，鱼和虾的摄入量负相关，人乳的MUFA呈负相关。母乳中的SFA与母亲的肉类呈正相关。此外，本结果表明，母乳中总脂肪酸和Sn-2脂肪酸的组成随着哺乳期和中国的地理区域而变化;然而，降温脂肪酸谱似乎不受哺乳期和区域的影响，尽管可以改变每个位置的数量。

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  • 来源
    《Food & Function》 |2018年第8期|共12页
  • 作者

    Deng Long; Zou Qian; Liu Biao; Ye Wenhui; Zhuo Chengfei; Chen Li; Deng Ze-Yuan; Fan Ya-Wei; Li Jing;

  • 作者单位

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

    Yili Grp Milk Powder Div Res &

    Dev Hohhot 010080 Inner Mongolia Peoples R China;

    Yili Grp Milk Powder Div Res &

    Dev Hohhot 010080 Inner Mongolia Peoples R China;

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

    Nanchang Univ State Key Lab Food Sci &

    Technol Nanchang 330047 Jiangxi Peoples R China;

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  • 正文语种 eng
  • 中图分类 食品工业;
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