Effect of storage process on nutritive properties of preterm human milk

IF 1 4区 工程技术 Q4 CHEMISTRY, APPLIED
N. Lugonja, V. Marinković, B. Miličić, J. Avdalović, M. Vrvić, S. Spasić
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引用次数: 0

Abstract

Freeze storage and pasteurization of human milk are common treatments in milk banks. Thermal treatment changes the quality of milk for preterm infants? nutrition, and the aim of this paper was to examine the nutritional profile and antioxidant potential of preterm human milk after storage and pasteurization, and also after supplementation with fortifier. The effects of storage processes were estimated on mature preterm milk of 30 breastfeeding women. Total proteins, lipids and lactose were determined after thermal processing and supplementation of mature preterm milk with fortifier. The antioxidant capacity was determined using the ferric reducing antioxidant potential method and lipid peroxidation inhibition assay. Protein concentration decreased after frozen storage and pasteurization (p<0.05). Pasteurization further reduced the lipid concentration after freezing. The ferric reducing antioxidant potential decreased after thermal treatments (p<0.05). Supplementation of mature milk with fortifier increased the concentration of proteins, lipids and lactose. Our findings demonstrated that storage and pasteurization processes affect the basic nutritional composition and antioxidant capacity of preterm human milk. In order to ensure adequate nutrition for preterm infants with preterm human milk, supplementation, especially with high concentrations of proteins and lipids, is necessary after thermal treatments.
储存过程对早产儿母乳营养特性的影响
母乳冷冻储存和巴氏消毒是母乳库中常见的处理方法。热处理会改变早产儿奶的质量吗?本文的目的是研究早产儿母乳在储存和巴氏灭菌以及添加强化剂后的营养状况和抗氧化潜力。对30名母乳喂养妇女的成熟早产儿乳汁进行了储存过程的影响评估。对成熟早产儿乳进行热处理和添加强化剂后的总蛋白、脂质和乳糖进行测定。采用铁还原抗氧化电位法和脂质过氧化抑制法测定其抗氧化能力。冷冻和巴氏灭菌后蛋白质浓度降低(p<0.05)。巴氏灭菌进一步降低了冷冻后的脂质浓度。热处理后铁还原抗氧化能力降低(p<0.05)。在成熟乳中添加强化剂可提高蛋白质、脂质和乳糖的浓度。我们的研究结果表明,储存和巴氏灭菌过程会影响早产儿母乳的基本营养成分和抗氧化能力。为了确保早产儿有足够的营养,早产儿母乳,补充,特别是高浓度的蛋白质和脂质,是必要的,在热处理后。
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来源期刊
Chemical Industry & Chemical Engineering Quarterly
Chemical Industry & Chemical Engineering Quarterly CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL
CiteScore
2.10
自引率
0.00%
发文量
24
审稿时长
3.3 months
期刊介绍: The Journal invites contributions to the following two main areas: • Applied Chemistry dealing with the application of basic chemical sciences to industry • Chemical Engineering dealing with the chemical and biochemical conversion of raw materials into different products as well as the design and operation of plants and equipment. The Journal welcomes contributions focused on: Chemical and Biochemical Engineering [...] Process Systems Engineering[...] Environmental Chemical and Process Engineering[...] Materials Synthesis and Processing[...] Food and Bioproducts Processing[...] Process Technology[...]
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