Ultrasound versus microwave as green processes for extraction of rosmarinic, carnosic and ursolic acids from rosemary

Jacotet-Navarro, Magali; Rombaut, Natacha; Fabiano‐Tixier, Anne‐Sylvie; Danguien, M.; Bily, Antoine; Chémat, Farid

doi:10.1016/j.ultsonch.2015.05.006

Cited by 106 publications

(56 citation statements)

References 39 publications

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“…Beyond the alternative solvents available for natural products extraction, hydro‐alcoholic mixtures are good candidates since they are rather few selective and scanned a wide range of polarities regarding the compounds to be extracted. Surprisingly, most extractions using hydro‐alcoholic mixtures are performed by default with high amount of ethanol (between 70 and 90% ethanol) . This is particularly exemplified with rosemary extracts which are currently used as antioxidants in the food sector.…”

Section: Introductionmentioning

confidence: 99%

What is the best ethanol‐water ratio for the extraction of antioxidants from rosemary? Impact of the solvent on yield, composition, and activity of the extracts

et al. 2018

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Extracts rich in antioxidants, such as rosemary extracts, are currently obtained by extraction of the plant material using hydro-alcoholic mixtures with high ethanol content. As this ratio is generally chosen by default and scarcely optimized, we intended to investigate the impact of the hydro-alcoholic composition on extract characteristics such as extraction yield, composition profile in selected compounds, and antioxidant/reducing activity such as Folin-Ciocalteu, DPPH, and ORAC. A theoretical determination of rosmarinic (RA) and carnosic (CA) acid solubilities in ethanol:water mixtures was also performed using COSMO-RS and was confronted to experiments. While the best solubilizing solvent (100% ethanol) was also the best extracting solvent for CA, it was not the case with RA since pure ethanol appeared as a poor solvent compared to 30% ethanol which was optimal. Finally, the best antioxidant activities were obtained with 30% ethanol.

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Section: Introductionmentioning

confidence: 99%

What is the best ethanol‐water ratio for the extraction of antioxidants from rosemary? Impact of the solvent on yield, composition, and activity of the extracts

et al. 2018

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“…Due to the difference in dipole moment of this compound, as shown via the QSAR modelling, terpinen‐4‐ol being polar, interacts more energetically with water. Jacotet‐Navarro et al previously determined an ideal theoretical solubility for ethanol water mixtures using COSMO‐RS comparing their calculations with experimental results. In their study they found a different ethanol concentration for rosmaric and carnosic acid.…”

Section: Resultsmentioning

confidence: 99%

Influence of distillation parameters on the extraction of Juniperus communis L . in vapour infused gin

2020

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The influence of distillation parameters on the extraction of flavour compounds from the gin botanical Juniperus communis L. using vapour infusion was investigated. The optimum mix of conditions to extract the highest levels of certain compounds was established using a 3 3 -factorial design. Quantification using solid-phase microextraction and gas chromatography coupled mass spectrometry, was performed measuring nine common flavour compounds. The greatest influence was the botanical ratio, whilst the least influential parameter was ethanol concentration for all compounds except terpinen-4-ol. Density functional theory calculations of quantitative structure-activity relationship properties for the flavour compounds were also undertaken to test for molecular influence on solvent extraction. The quantitative structure-activity relationship model showed the highest dipole moment for terpinen-4-ol and the lowest for γ-terpinene.

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“…Rosemary is native to the Mediterranean region. It possesses needle-like leaves which contain a powerful fragrance 2 . It is used as a food flavoring agent, and well known medicinally for its powerful antitumor, antibacterial, antifungal and antioxidant activity [3][4][5][6][7] .Rosemary essential oil composition and the ratio between different oil constituents plays a role in its bioactivity 8 .…”

Section: Rosemary (Rosmarinus Officinalis L) Is Amentioning

confidence: 99%

Supercritical Fluid Extraction as a Technique to Obtain Essential Oil from Rosmarinus officinalis L.

Khalili¹,

Mazloomifar²,

Larijani³

et al. 2017

Orient. J. Chem

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The aim of this study was the comparison of essential oil of one herb from lamiaceae family namely Rosemary, via supercritical fluid extraction (SFE) and hydrodistillation (HD). The essential oils were analyzed by gas chromatography-quadrupole mass spectrometry (GC-MS). The compounds identified in higher relative abundance were,α-pinene (HD: 30.42%, SFE: 0.47%), 1,8-cineole (HD: 15.46%, SFE: 25.05%),Verbenone (HD: 13.09%, SFE: 5.17%), Camphor (HD: 8.97%, SFE:15.69%), Borneol (HD: 7.16%, SFE: 9.15%) and β∋-Caryophyllene (SFE: 6.85%).

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Ultrasound versus microwave as green processes for extraction of rosmarinic, carnosic and ursolic acids from rosemary

Cited by 106 publications

References 39 publications

What is the best ethanol‐water ratio for the extraction of antioxidants from rosemary? Impact of the solvent on yield, composition, and activity of the extracts

What is the best ethanol‐water ratio for the extraction of antioxidants from rosemary? Impact of the solvent on yield, composition, and activity of the extracts

Influence of distillation parameters on the extraction of Juniperus communis L . in vapour infused gin

Supercritical Fluid Extraction as a Technique to Obtain Essential Oil from Rosmarinus officinalis L.

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