2024/03/03 by Necla Ozdemir‐Orhan, Necla Özdemır
Agricultural and Biological Sciences · #Polysaccharides Composition and Applications #Microencapsulation and Drying Processes #Food Chemistry and Fat Analysis
paper · pdf · doi:10.1111/ijfs.17036
Summary In this study, microwave (MW)‐assisted extraction was used to obtain mucilage from Camelina sativa seeds. MW pretreatment was applied for 0, 2.5, 5 and 7.5 min and then conventional heating was conducted (55 °C for 2 h). The extracted mucilage was spray dried. The MW‐assisted extraction method (2.02%–2.50%) had higher extraction yield for camelina seed mucilage than the conventional heating method (1.91%) ( P < 0.05). The emulsifying properties of the mucilages were compared with those of gum Arabic and all emulsions displayed shear thinning behaviour (pseudoplastic, n < 1). The apparent viscosity of the conventional, 2.5, 5 and 7.5 min MW mucilage emulsions were 15.83, 14.48, 7.91 and 7.56 cP, respectively, at 10 s −1 . MW pretreatment improved physical stability and resulted in a reduction in the droplet size of mucilage‐stabilised emulsions with increasing process time. The highest droplet size belonged to the conventional mucilage emulsion (d 32 , 4.43 μm), while the lowest belonged to the 7.5 min MW mucilage emulsion (d 32 , 2.08 μm) ( P < 0.05). The results highlight the advantages of using MW pretreatment for mucilage extraction and the potential of using camelina seed mucilage as a natural emulsifier.