Title :

Improved Hydrotropic Extraction of Carnosic Acid from Rosemary and Sage with Short-Chain Monoalkyl Glycerol Ethers

Author(s) :

Mazaud, Agathe [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lebeuf, Raphael [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Laguerre, Mickaël [Auteur]
Nardello-Rataj, Véronique [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

ACS Sustainable Chemistry & Engineering

Abbreviated title :

ACS Sustainable Chem. Eng.

Volume number :

10

Pages :

3673-3681

Publisher :

American Chemical Society (ACS)

Publication date :

2022-03-10

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

Hydrotropic extraction in water with biobased amphiphiles is considered as an interesting alternative to conventional extraction with organic solvents. In this study, butyl, isoamyl, and pentyl glycerol ethers (C4Gly, ...
Show more >Hydrotropic extraction in water with biobased amphiphiles is considered as an interesting alternative to conventional extraction with organic solvents. In this study, butyl, isoamyl, and pentyl glycerol ethers (C4Gly, iC5Gly, and C5Gly, respectively) are investigated for the extraction from rosemary (Rosmarinus officinalis) and sage (Salvia officinalis) of carnosic acid (CA), a powerful natural antioxidant used as an alternative to synthetic ones in food and cosmetic industries. First, interactions between CA and hydrotropes are studied to set the extraction conditions, resulting in the measurement of the solubility curves and miscibility of CA in the hydrotropic solutions. Then, C5Gly is shown to have the highest efficiency to extract CA, which is rationalized with a molecular model previously established for an alkyl polyethylene glycol ether (CiEj) series of amphiphiles based on their log P and molecular volume. Additionally, measurement of the contact angles of the hydrotropic solutions on rosemary leaves indicates that the efficiency of the hydrotrope is also dependent on the interfacial tension.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Colloïdes catalyse oxydation (CÏSCO)

Submission date :

2024-04-03T10:39:14Z