TY - JOUR
T1 - Producing submicron chitosan-stabilized oil Pickering emulsion powder by an electrostatic collector-equipped spray dryer
AU - Tabatabaei, Meisam
AU - Ebrahimi, Behnam
AU - Rajaei, Ahmad
AU - Movahednejad, Mohamad Hadi
AU - Rastegari, Hajar
AU - Taghavi, Elham
AU - Aghbashlo, Mortaza
AU - Gupta, Vijai Kumar
AU - Lam, Su Shiung
N1 - Copyright © 2022. Published by Elsevier Ltd.
PY - 2022/10/15
Y1 - 2022/10/15
N2 - 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.
AB - 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.
KW - Chitosan
KW - Electrostatic collector
KW - Hempseed oil
KW - Pickering emulsion
KW - Spray dryer
UR - http://www.scopus.com/inward/record.url?scp=85133223554&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2022.119791
DO - 10.1016/j.carbpol.2022.119791
M3 - Article
C2 - 35868798
AN - SCOPUS:85133223554
SN - 0144-8617
VL - 294
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
M1 - 119791
ER -