EFFECT OF HIGH-PRESSURE TREATMENT ON THE STABILITY OF QUINOA PROTEIN-CANOLA OIL NANOEMULSIONS IN TERMS OF DROPLET SIZE AND LIPID OXIDATION

Authors : Mehmet Murat CEYLAN

Pages : 298-304

Doi:10.21597/jist.1224085

View : 55 | Download : 14

Publication Date : 2023-03-01

Article Type : Research Paper

Abstract :The stability characteristics of soluble nano-sized quinoa protein isolates prepared by different high-pressure homogenization in terms of droplet size and lipid oxidation were studied. Commercial quinoa protein isolates insert ignore into journalissuearticles values(QPI); were exposed to high-pressure homogenization insert ignore into journalissuearticles values(HPH); at various pressure insert ignore into journalissuearticles values(50, 100 and 200 MPa); and pressure cycles insert ignore into journalissuearticles values(one-cycle and two cycles);. The quinoa isolate aggregates were utilized to produce oil-in-water nanoemulsions, which demonstrated the good stabile characteristics for 28 day of storage at 4 oC. While quinoa protein / canola oil nanoemulsions insert ignore into journalissuearticles values(QPCON); produced with untreated QPI and QPI samples by other HPH treatments were shown a significant increase in terms of droplet size and lipid oxidation in 28 days of storage, QPI samples treated with HPH at 100 MPa for a cycle insert ignore into journalissuearticles values(100 MPa-1); was found as the most efficient treatment in the stability of protein aggregate sizes and less oxidation level. The sample showed a slight increase from 98 nm to 117 nm for droplet size and from 58 to 102 mmol/kg for lipid oxidation from day 0 to day 28.
Keywords : Droplet size, Quinoa protein isolate, High pressure homogenization, Lipid oxidation, Nanoemulsion

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