A comparative study between freeze-dried and spray-dried goat milk on lipid profiling and digestibility

被引：22

作者：

Zhang, Yan ^{[1
]}

Zheng, Zhaojun ^{[1
]}

Liu, Chunhuan ^{[1
]}

Tan, Chin-ping ^{[2
]}

Xie, Kui ^{[3
]}

Liu, Yuanfa ^{[1
]}

机构：

[1] Jiangnan Univ, Collaborat Innovat Ctr Food Safety & Qual Control, Sch Food Sci & Technol,State Key Lab Food Sci & T, Natl Engn Res Ctr Funct Food,Natl Engn Lab Cereal, 1800 Lihu Rd, Wuxi 214122, Jiangsu, Peoples R China

[2] Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Technol, Seri Kembangan 410500, Selangor, Malaysia

[3] Ausnutria Hyproca Nutr Co Ltd, Changsha 410011, Peoples R China

来源：

FOOD CHEMISTRY | 2022年 / 387卷

基金：

国家重点研发计划;

关键词：

Goat milk; Freeze drying; Spray drying; Lipid profiling; Lipid digestibility; IN-VITRO; INFANT FORMULAS; FAT GLOBULES; GASTRIC DIGESTION; HOMOGENIZATION; LIPOLYSIS; MODEL; ACID; BOVINE; DAIRY;

D O I：

10.1016/j.foodchem.2022.132844

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Different drying techniques impart distinguishing characteristics to goat milk, particularly to its fat globules. Here, we investigated the difference between freeze-dried and spray-dried goat milk (FGM and SGM) fat globules on lipid profiling and in vitro infant gastrointestinal digestibility. The former presented higher levels of MUFA (31.76%) and lower cholesterol content (1.20 +/- 0.02 mg/g). Some important long-chain polyunsaturated triacylglycerols such as POL (16:0/18:1/18:2), PSL (16:0/18:0/18:2), and POO (16:0/18:1/18:1), also had better preservation in FGM. Moreover, we detected more species of lysophospholipid in FGM than SGM, accounting for 2.51% and 0.71% of total phospholipids, respectively. More intriguingly, FGM, which has better membrane integrity and larger particle size, showed longer lag during gastric digestion and lower level of final lipolysis throughout gastrointestinal digestion. Therefore, our results showed the effects of different drying techniques on lipid profiling and digestibility of goat milk, providing significant insight for appropriate utilization of goat milk in infant nutrition.

引用

页数：9

共 39 条

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