当前位置: X-MOL 学术Int. Dairy J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Impact of γ-irradiation or heat pasteurisation treatment on nutritional and immunological properties of human milk
International Dairy Journal ( IF 3.1 ) Pub Date : 2021-08-10 , DOI: 10.1016/j.idairyj.2021.105178
Valerie Robichaud 1 , Blanca R. Aguilar-Uscanga 2 , Mathieu Millette 3 , Zahra Allahdad 1 , Monique Lacroix 1
Affiliation  

The nutritional and microbiological quality of human milk (HM) before and after spray drying was compared. The results showed that the atomisation of untreated-HM did not significantly change protein, lactose and fat content. The immunoglobulins showed a retention from 70 to 82% for IgA, IgG and IgM. γ-Irradiation (3, 5 and 10 kGy) of frozen and powdered milk as well as Holder pasteurisation (HoP; 62.5 °C for 30 min) of liquid milk were used to decontaminate milk. A dose of 5 kGy irradiation resulted in 99.7% destruction of the total aerobic flora in the powdered milk and in the frozen milk, while it was 95.1% for HoP-treated milk. Macronutrients and bioactive compounds (lysozyme and amylase) present in atomised HM were not affected by γ-irradiation even at a dose of 10 kGy. Despite a slight increase in malondialdehyde, treatment with irradiation at 10 kGy did not alter the antioxidant potential.



中文翻译:

γ-辐照或热巴氏杀菌处理对母乳营养和免疫学特性的影响

比较了喷雾干燥前后人乳(HM)的营养和微生物质量。结果表明,未经处理的 HM 的雾化不会显着改变蛋白质、乳糖和脂肪含量。免疫球蛋白对 IgA、IgG 和 IgM 的保留率为 70% 至 82%。冷冻和奶粉的γ-辐照(3、5 和10 kGy)以及液态奶的Holder 巴氏杀菌(HoP;62.5 °C 持续30 分钟)用于净化牛奶。5 kGy 的辐射剂量导致奶粉和冷冻牛奶中的总需氧菌群被破坏 99.7%,而经 HoP 处理的牛奶破坏了 95.1%。即使在 10 kGy 的剂量下,存在于雾化 HM 中的常量营养素和生物活性化合物(溶菌酶和淀粉酶)也不受 γ 辐射的影响。尽管丙二醛略有增加,

更新日期:2021-08-21
down
wechat
bug