Is it possible to substitute hexane with green solvents for extraction of carotenoids? A theoretical versus experimental solubility study
Data de publicació2016
Fabiano-Tixier, A. S.
MetadadesMostra el registre d'unitat complet
The present study was designed to evaluate five green solvents, i.e. 2-methyltetrahydrofuran (2-MeTHF), dimethyl carbonate (DMC), cyclopentyl methyl ether (CPME), isopropyl alcohol (IPA) and ethyl acetate, for the substitution of n-hexane in the extraction of carotenoids from carrots. Initially, solvent selection was made through the theoretical physicochemical solvent properties and solubility results obtained using two simulation programs, Hansen Solubility Parameters (HSPs) and Conductor-like Screening Model for Realistic Solvation (COSMO-RS) which use a statistical thermodynamics approach based on the result of quantum chemical calculation, for comprehension of the dissolving mechanism. On the basis of the HSPs analysis, non-polar or slightly polar solvents were the most suitable solvents for extraction of carotenoids. COSMO-RS analysis showed a higher probability of solubility for all the carotenoids from carrot in CPME, 2-MeTHF and ethyl acetate compared with n-hexane. The experimental results using a conventional solid–liquid extraction by maceration showed that the best green solvents were CPME, 2-MeTHF and ethyl acetate in accordance with the predictive results from COSMO-RS. The highest carotenoid content (78.4 mg 100 g−1 DM) was observed in CPME where 66% was represented by β-carotene and 34% was α-carotene. These results support the potential of CPME and 2-MeTHF as alternative green solvents for extraction of carotenoids.
És part deRSC Advances, 2016, vol. 6, núm. 33, p. 27750-27759
Projectes de recerca europeus
Mostrant elements relacionats per títol, autor i matèria.
Vegetable oils as alternative solvents for green oleo-extraction, purification and formulation of food and natural products Yara Varón, Edinson; Li, Ying; Balcells Fluvià, Mercè; Canela i Garayoa, Ramon; Fabiano-Tixier, A. S.; Chemat, F. (MDPI, 2017)Since solvents of petroleum origin are now strictly regulated worldwide, there is a growing demand for using greener, bio-based and renewable solvents for extraction, purification and formulation of natural and food products. ...
Torregrosa García, Rubén; Yara Varón, Edinson; Balcells Fluvià, Mercè; Torres i Grifo, Mercè; Canela i Garayoa, Ramon (Académie des SciencesElsevier, 2016)Solvent-free reactions are the systems of choice in green chemistry. In addition to contributing to lowering the environmental impact of chemical processes, solvent-free systems can reduce production costs, reaction times, ...
Synthesis of poly(ethyl acrylate-co-allyl acrylates) from acrylate mixtures prepared by a continuous solvent-free enzymatic process Yara Varón, Edinson; Eras i Joli, Jordi; Balcells Fluvià, Mercè; Torres i Grifo, Mercè; Canela i Garayoa, Ramon (Royal Society of Chemistry, 2012)A miniaturized, packed-bed, continuous-flow reactor to carry out the enzymatic interesterification of ethyl acrylate with diverse allyl aliphatic esters is described. CALB (lipase B from Candida antarctica immobilized on ...