期刊
POWDER TECHNOLOGY
卷 347, 期 -, 页码 179-185出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.powtec.2019.03.010
关键词
Microencapsulation; Spray drying; Freeze drying; Fluid bed; Stability; Strawberry flavour
资金
- Creaciones Aromaticas Industriales (CARINSA) [CFE-CARINSA/02/12]
- Universidad Catolica de Murcia through grant Plan Propio de Investigacion
The protection and stability of flavours is the great importance in the food industry in order to produce high-quality products. For this reason, the main goal of this paper was. to study the stability of a microencapsulated strawberry flavour using different encapsulating agents and drying techniques: spray drying, freeze drying and fluid bed. According to the quantification of volatile compounds, the blend MDs/Hi-Cap (9/1) at a fixed concentration of CDs (1.7%) was the most appropriate for microencapsulating the strawberry flavour. The best drying yield was observed in the case of freeze drying. In the case of the moisture content, spray drying samples presented the lowest values, followed by freeze drying and fluid bed. The study of stability at different temperatures and times revealed that the presence of CDs in the blend enabled a higher presence of volatile compounds in the powder than in its absence. Microphotographs showed smooth spherical particles in the case of spray drying, whereas the structure of the powder was amorphous, like glass, with freeze drying and irregular in the case of fluid bed. (C) 2019 Elsevier B.V. All rights reserved.
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