Stability and Processing Characteristics of Microencapsulated Squid Liver Oil by Fluidized Bed Coating

• Published in: Korean Journal of Food Science and Technology Vol. 40; no. 6
• Main Authors: Hwang, S.H. (Catholic University of Daegu, Gyungsan, Republic of Korea), Youn, K.S. (Catholic University of Daegu, Gyungsan, Republic of Korea), E-mail: ksyoun@cu.ac.kr
• Format: Journal Article
• Language: Korean
• Published: 01.12.2008
• Subjects: fluidized bed coating; MICROENCAPSULACION; MICROENCAPSULATION; squid liver oil
• ISSN: 0367-6293

Squid oil is an abundant source of polyunsaturated fatty acids. This is particularly true for eicosapentaenoic acid and docosahexaenoic acid. The principal objective of this study was to extend the stability and improve the process aptitude of squid liver oil. Fluidized bed coatings were employed for coating with microencapsulated oil. The efficiency of the fluidized bed coating of the microencapsulated powder was over 90%. The apparent density with zein-DP was 0.6 g/mL, thereby indicating that flow ability had been improved as the result of an increase in specific gravity. The solubility of artificial gastric and enteric fluids with HPMC-FCC was 59.9 and 0%, respectively, whereas with zein-DP solubility was 0 and 31.0%, respectively. Polyunsaturated fatty acid retention results demonstrated that zein-DP coating was higher than HPMC-FCC, followed by the microencapsulated squid liver oil method. These results demonstrated that the application of microencapsulation and fluidized bed micro-coating techniques improved the stability and processing compatibility of squid liver oil.