Author, as appears in the article.: Ammendola, Mario; Rodrigo Gomez, Raul; Garcia Valls, Ricard;

Department: Enginyeria Química

URV's Author/s: Garcia Valls, Ricard

Keywords: Vips Sustainable Performance Membrane formation Fragrance Encapsulation Cellulose-acetate Cellulose acetate Biodegradation

Abstract: In this study we explored the implementation of the vapor induced phase separation (VIPS) to produce cellulose acetate microcapsules for the encapsulation of a complex mix of fragrances. VIPS is a technique used for membrane preparation, but barely mentioned for microencapsulation. We compared the products from VIPS and a more common microencapsulation process, the immersion precipitation technique (IPS). The capsules prepared via VIPS show a core-shell structure with a thin polymeric shell surrounding the internally empty space, conversely to those produced via IPS, showing an incomplete spherical morphology. This can be attributed to a better control of the precipitation rate of the encapsulation material in the non-solvent thanks to the longer exposition time to the vapor. The activity and encapsulation efficiency of the capsules, obtained through TGA analysis, reached a maximum of approximate to 75% and approximate to 90%, respectively. Moreover, a growing trend between the initial active concentration and the encapsulation efficiency is noticed.

Thematic Areas: Process chemistry and technology Engineering, chemical Engenharias ii Ciências biológicas ii Chemical engineering (miscellaneous) Bioengineering

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 22279717

Author's mail: ricard.garcia@urv.cat

Author identifier: 0000-0002-3945-0434

Record's date: 2023-02-18

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.mdpi.com/2227-9717/7/12/865

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Processes. 7 (12):

APA: Ammendola, Mario; Rodrigo Gomez, Raul; Garcia Valls, Ricard; (2019). Perfume Encapsulation via Vapor Induced Phase Separation. Processes, 7(12), -. DOI: 10.3390/pr7120865

Article's DOI: 10.3390/pr7120865

Entity: Universitat Rovira i Virgili

Journal publication year: 2019

Publication Type: Journal Publications