Spray- or freeze-drying of casein micelles loaded with Vitamin D2: Studies on storage stability and in vitro digestibility

被引:40
|
作者
Moeller, Henrike [1 ]
Martin, Dierk [1 ]
Schrader, Katrin [1 ]
Hoffmann, Wolfgang [1 ]
Lorenzen, Peter Chr. [1 ]
机构
[1] Max Rubner Inst, Fed Res Inst Nutr & Food, Dept Safety & Qual Milk & Fish Prod, HermannWeigmann Str 1, D-24103 Kiel, Germany
关键词
Dried casein micelle; Vitamin D; Nanocarrier; Encapsulation; In vitro digestion; HYDROPHOBIC NUTRACEUTICALS; ENHANCED DISPERSIBILITY; BETA-CAROTENE; HEATED MILK; ENCAPSULATION; DELIVERY; PH; MICROENCAPSULATION; BIOAVAILABILITY; NANOPARTICLES;
D O I
10.1016/j.lwt.2018.04.003
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Casein micelles (CM) loaded with Vitamin D2 (Vit. D2) were spray- and freeze-dried at pilot scale. The powders showed constant Vit. D2 contents over four months of storage. The CM structure was retained after processing and drying. Low fat yoghurt was enriched with the spray-dried powder or with free Vit. D2. An in vitro proteolysis showed that 90% of the Vit. D2 added as an encapsulated product, e.g. dried CM, remained active compared to only 67% when Vit. D2 was supplemented as a free substance. Since all proteins were hydrolysed after in vitro proteolysis, it can be assumed that the Vit. D2 contents determined would be ultimately available in the lumen.
引用
收藏
页码:87 / 93
页数:7
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