An Investigation in Microencapsulating Astaxanthin Using a Monodisperse Droplet Spray Dryer

作者：Dai Qijing; You Xiang; Che Liming^*; Yu Fei; Selomulya Cordelia; Chen Xiao Dong

来源：Drying Technology, 2013, 31(13-14): 1562-1569.

DOI：10.1080/07373937.2013.800877

• Antioxidant
• Astaxanthin
• Monodisperse droplet spray drying
• Monodisperse microparticles

Astaxanthin has stirred great interest in the research and health communities due to its antioxidant capacity and possible role in reducing the risk of some diseases. However, astaxanthin is a highly unsaturated molecule that can degrade and lose its bioactive properties during processing and storage. Microencapsulation is a possible preservation process and a product option. In this work, monodisperse astaxanthin-containing microparticles with high bioactivity retention were prepared using the monodisperse droplet drying technique. The morphology, microstructure, surface oil content, flowability, antioxidant capacity, and in vitro release properties of the microparticles were determined to test the reliability of the spray-drying technique. The results show that monodisperse astaxanthin-containing microparticles have smooth surface, low surface oil content, excellent flowability, prolonged release profile, and high antioxidant activity. The current work indicates that the monodisperse droplet spray-drying technique enhances both bioactivity retention and product properties of astaxanthin-containing microparticles.

• 出版日期2013-10-26
• 单位厦门大学