| Full text | |
| Author(s): |
Dias Meirelles, Aureliano Agostinho
[1]
;
Rodrigues Costa, Ana Leticia
[1, 2]
;
Michelon, Mariano
[3, 4]
;
Vigano, Juliane
[5]
;
Carvalho, Marcio S.
[4]
;
Cunha, Rosiane Lopes
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Campinas, Sch Food Engn, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Chem Engn, Dept Mat & Bioproc Engn, Av Albert Einstein 500, BR-13083852 Campinas, SP - Brazil
[3] Fed Univ Rio Grande FURG, Sch Chem & Food, Rio Grande, RS - Brazil
[4] Pontificia Univ Catolica Rio de Janeiro, Dept Mech Engn, Lab Microhydrodynam & Flow Porous Media, Rio De Janeiro, RJ - Brazil
[5] Univ Estadual Campinas, Sch Appl Sci FCA, Multidisciplinary Lab Food & Hlth LabMAS, Rua Pedro Zaccaria 1300, BR-13484350 Sao Paulo, Limeira - Brazil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Journal of Food Engineering; v. 315, FEB 2022. |
| Web of Science Citations: | 0 |
| Abstract | |
Carrying lipophilic compounds protection within alginate microgels is a challenge, mainly due to the necessary oil-core matrix. Based on this demand, this study aimed to evaluate the use of glass microfluidic devices to produce emulsion-filled alginate microgels and understand the effect of process variables on microgels size and polydispersity. Firstly, stable and monodisperse size-distributed oil microdroplets were formed by preparing an oil-in-water (O/W) emulsion using high shear followed by ultrasound. The continuous aqueous phase was composed of Na-alginate, cellulose nanocrystals and ultrafine calcium carbonate. Sunflower oil composed the emulsion oil phase (10%, w/w). Secondly, oil-in-water-in-oil (O/W/O) emulsions were formed within microfluidics devices to obtain emulsion-filled hydrogel particles. The previously produced O/W emulsion was introduced as the dispersed phase into a continuous phase containing sunflower oil, PGPR and acetic acid. The aqueous phase was gelled by internal gelation, promoting the alginate network. Monodisperse particle size distribution was observed, with a coefficient of variation lower than 6% and mean size ranging from 259 to 526 mu m. Microgels size was influenced by the viscosity of O/W emulsion and the phases flow rates. Our results show the potential of microfluidic processes for producing microgels and filled microgels to encapsulate lipophilic compounds. (AU) | |
| FAPESP's process: | 19/07744-1 - Use of microfluidic devices to evaluate emulsion stability |
| Grantee: | Rosiane Lopes da Cunha |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 07/58017-5 - Micro e nano emulsoes alimenticias: estudo reo-optico e de estabilidade. |
| Grantee: | Rosiane Lopes da Cunha |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/18109-0 - Development of an emulsion stability analyzer from microfluidics |
| Grantee: | Tatiana Porto dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 20/15774-5 - Development of methods of extraction, separation and two-dimensional analysis of phenolic compounds in natural products |
| Grantee: | Juliane Viganó |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 20/02313-0 - Microfluidic and 3D bioprinting routes for the development of macrophage encapsulation systems based on hybrid gellan and fibrin hydrogels |
| Grantee: | Ana Leticia Rodrigues Costa Lelis |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 11/06083-0 - Emulsification by microchannels |
| Grantee: | Rosiane Lopes da Cunha |
| Support Opportunities: | Regular Research Grants |