Development and optimization of spray‐dried functional oil microcapsules: Oxidation stability and release kinetics

Abstract

This study aimed to optimize the microencapsulation method for a functional oil using high amylose corn starch (HACS) and assessed its structure and antioxidant capacity. The results showed that the optimal microencapsulation condition is achieved by using 28.5% of functional oil, 15.75% of HACS, and 57.86% of proportion of monoglyceride in emulsifier with 94.86% microencapsulation efficiency. Scanning electron microscopy and particle size measurement showed that the functional oil microcapsules were uniform size, smooth surface, spherical shape, and without cracks in the wall of the capsules. In vitro oil release of microencapsulates results showed that microencapsulated functional oil containing HACS has a better sustained release effect. The microcapsules containing HACS exhibited a lower lipid oxidation rate during storage. In conclusion, microencapsulation of HACS as wall material improved the stability of functional oil and this formulation of microcapsules was satisfactorily applied in powdered food for diabetic patients.

Preparation, Characterization, and Antioxidant Properties of Phycocyanin Complexes Based on Sodium Alginate and Lysozyme

“…The PC-SLC complex shows an irregular spherical structure and the spheres are clustered together. Yue et al ( 27 ) showed that the ideal structure to form a complex is one with a uniform, smooth spherical surface with fewer cracks and collapses in the walls. It has also been shown that complex with rough surfaces are more sensitive to oxidation reactions due to the large surface area they possess, while complex with smooth surfaces are less susceptible to oxidation reactions ( 28 ).…”

Microencapsulación de aceites vegetales mediante secado por aspersión

“…La fórmula óptima para la preparación de microcápsulas de aceite funcional (aceite de semillas de chíamaní-oliva) fue de 28,5 % de aceite funcional, 15,75 % de almidón de maíz con alto contenido de amilosa y 57,86 % de monoglicérido como emulsificador 43 .…”

“…Los valores publicados para el secado por aspersión de aceites fueron 10 y 5 mL/min para pulpa de aguacate 54,55 ; 1,32 mL/min para semillas de java brucea 49 ; 15 a 25 mL/min y 40 mL/min para ajonjolí 42,44 ; 475 cm 3 /h y 9 mL/min para girasol 56,57 ; entre 65 y 288 mL/h para calabaza 34,35 ; 0.6 L/h para calabaza moscada 36 ; 2 mL/min para burití 53 ; 5 ml/min para chía-maní-oliva 43 ; 55 mL/ min para sacha inchi 58 y 1 L/h para salvado de arroz 59 .…”

Performance of spray‐dried Ziziphus jujuba extract using insoluble fraction of Persian gum–sodium alginate and whey protein: Microstructural and physicochemical attributes of micro‐ and nano‐capsules

“…Researchers have emphasized that it is an important source of antioxidants, flavonoids, and polyphenols (Badejo et al., 2020 ), and its valuable properties include lowering blood pressure, antibacterial, anticancer, antioxidant, and antidiabetic (Wu et al., 2011 ). To reduce the damage to jujube extract, a spray dryer is used to turn it into a powder (Yue et al., 2020 ), which is the aim of this research (Baltrusch et al., 2022 ; Khoshdouni Farahani et al., 2022b ).…”