Producing submicron chitosan-stabilized oil Pickering emulsion powder by an electrostatic collector-equipped spray dryer. (15th October 2022)

• Record Type: Journal Article
• Authors: Tabatabaei, Meisam; Ebrahimi, Behnam; Rajaei, Ahmad; Movahednejad, Mohamad Hadi; Rastegari, Hajar; Taghavi, Elham; Aghbashlo, Mortaza; Gupta, Vijai Kumar; Lam, Su Shiung
• Is Part Of: Carbohydrate polymers. Volume 294(2022)
• Publication Date: 2022-10-15
• Subjects: CS Chitosan -- CA Capric acid -- PA Palmitic acid -- EDC 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide -- DD Degree of deacetylation -- DA Degree of amidation -- MD Maltodextrin -- RDI Redispersibility index -- FE-SEM Field Emission Scanning Electron Microscope -- ATR-IR Total reflectance Fourier transform infrared -- EDX Energy-dispersive X-ray spectroscopy -- ANOVA Analysis of variance; Chitosan -- Hempseed oil -- Pickering emulsion -- Spray dryer -- Electrostatic collector; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2022.119791
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: Chitosan (CS) was modified with two fatty acids, i.e., capric acid (CA) and palmitic acid (PA). Particle size (315.8 nm), zeta potential (31.8 mV), and viscosity (29.4 mPa.s) of CS-PA nanogels were lower than CS-CA nanogels (793.2 nm, 53.3 mV, and 70.7 mPa.s). First, hempseed oil-in-water Pickering nanoemulsions were stabilized by CS-based particles/maltodextrin (MD). Then, the emulsions were dried using an electrostatic collector-equipped spray dryer. The D50 of re-dispersed emulsion powders with CS-PA/MD coating was 936 nm. According to the FE-SEM images, oil coated with CS-PA/MD showed higher porosity and C/O ratio at the particle surface compared to the CS-CA/MD coating leading to more oil leakage. In addition, the crystallinity of hempseed oil coated with CS-PA/MD was higher than the one coated with CS-CA/MD. These findings showed that submicron Pickering emulsion powders could be achieved by targeted modification of CS and using a spray dryer equipped with an electrostatic collector. Graphical abstract: Unlabelled Image