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Effect of ultrasonic treatment on the physicochemical properties and oxidative stability of phospholipids in emulsion system
Author(s) -
Jiang Xiaofei,
Zhou Shengmin,
Jiang Yuanrong,
Brenna J. Thomas,
Abbaspourrad Alireza
Publication year - 2021
Publication title -
journal of food process engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 45
eISSN - 1745-4530
pISSN - 0145-8876
DOI - 10.1111/jfpe.13606
Subject(s) - phospholipid , phosphatidylcholine , emulsion , chemistry , oxidative phosphorylation , ultrasonic sensor , peroxide value , antioxidant , ultrasound , chromatography , biochemistry , food science , membrane , medicine , radiology
This study evaluated the behavior changes of two types of phospholipid emulsions under ultrasonic treatment. The phosphatidylcholine (PC) contents for PC 50 and PC 90 were 58 and 90%, respectively. The results showed that acid value and fatty acid compositions of the two phospholipids showed no significant differences ( p > .05) before and after ultrasonic treatment. The peroxide value and volatile compounds revealed that PC 50 had stronger oxidative stability than PC 90, which indicated that the synergistic effect of PC and other phospholipids components could enhance the oxidative stability of individual phospholipids. This work suggests that appropriate ultrasonic treatment could make phospholipids finely dispersed in aqueous system and promote their contact efficiency with 2,2‐diphenyl‐1‐picrylhydrazyl, resulting in the increase in antioxidant ability of the phospholipid emulsions. However, prolonged ultrasonic treatment could induce the self‐oxidation of phospholipids, and more attention should be paid to the self‐oxidation of these phospholipids when ultrasound was applied in food processing. Practical Applications This study evaluated the behavior changes of two types of phospholipids under ultrasonic treatment. The findings of this study could be useful for guiding the future usage of phospholipids and ultrasound in the food industry.