Characterization of Ultrasonically Prepared Flaxseed oil Enriched Beverage/Carrot Juice Emulsions and Process-Induced Changes to the Functional Properties of Carrot Juice
Akalya Shanmugam, Muthupandian Ashokkumar
FOOD AND BIOPROCESS TECHNOLOGY | SPRINGER | Published : 2015
This study reports on the formation of stable emulsion of flaxseed oil (1 % v/v) in carrot juice (CJFO) using 20-kHz ultrasound (US) at 176 W and 4 min of processing time. The shear forces generated by acoustic cavitation are responsible for the production of emulsion droplets of size 0.6 μm. Pectin acted as an emulsifier providing stability by creating electrostatic repulsion (ζ potential −30 mV) between emulsion droplets and the emulsions were stable up to 8 days at 4 ± 2 °C. The viscosity of the emulsion remained unchanged with sonication time (up to 8 min) and upon storage. The unaffected flow behavior of emulsions was an advantage to adapt it to existing pipelines in food industries. So..View full abstract
Akalya Shanmugam acknowledges financial support-Melbourne International Research Scholarship and Melbourne International Fee Remission Scholarship provided by University of Melbourne, Australia. Authors also thank Stoney Creek Oil Products Pty Ltd, Australia, for providing flaxseed oil as a gift sample for research.