Rational Design of Sustainable Liquid Microcapsules for Spontaneous Fragrance Encapsulation

Murgia S.;
2021

Abstract

The high volatility, water-immiscibility, and light/oxygen-sensitivity of most aroma compounds represent a challenge to their incorporation in liquid consumer products. Current encapsulation methods entail the use of petroleum-based materials, initiators, and crosslinkers as well as mixing, heating, and purification steps. Hence, more efficient and eco-friendly approaches to encapsulation must be sought. Herein, we propose a simple method by making use of a pre-formed amphiphilic polymer and employing the Hansen Solubility Parameters approach to determine which fragrances could be encapsulated by spontaneous coacervation in water. The coacervates do not precipitate as solids but they remain suspended as colloidally stable liquid microcapsules, as demonstrated by fluorescence correlation spectroscopy. The effective encapsulation of fragrance is proven through confocal Raman spectroscopy, while the structure of the capsules is investigated by means of cryo FIB/SEM, confocal laser scanning microscopy, and small-angle X-ray scattering.
eng
60
44
23849
23857
9
Esperti anonimi
internazionale
Scientifica
Fragrance; Microencapsulation; Microplastic; Raman microspectroscopy; Spontaneous phenomena
si
Mamusa, M.; Mastrangelo, R.; Glen, T.; Murgia, S.; Palazzo, G.; Smets, J.; Baglioni, P.
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
7
open
Files in This Item:
File Size Format  
Murgia_AngewChemIntEd 2021.pdf

accesso aperto

Type: versione editoriale
Size 2.4 MB
Format Adobe PDF
2.4 MB Adobe PDF View/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Questionnaire and social

Share on:
Impostazioni cookie