Ionic liquid associated with ultrasonic-assisted extraction: A new approach to obtain carotenoids from orange peel

Murador, Daniella Carisa; Braga, Anna Rafaela Cavalcante; Martins, Paula Larangeira Garcia; Mercadante, Adriana Zerlotti; Rosso, Veridiana Vera de

doi:10.1016/j.foodres.2019.108653

Cited by 85 publications

(46 citation statements)

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“…Figure 5 shows a comparison between the chromatograms of the native carotenoids extract (nonsaponified), and the saponified carotenoids extract, obtained by HPLC-DAD, under the same analitical conditions. At the same retention time (range 7.5-7.6 min), the unidentified compound named as 1, was detected in the non-saponified sample, while in the saponified one, it was not noted; the peak eluted at 7.53 min presented a UV/vis spectra probably correspondent to (all-E)luteoxanthin, previously identified by Murador et al [27], in the same saponified orange extract. Figure 5 shows a comparison between the chromatograms of the native carotenoids extract (non-saponified), and the saponified carotenoids extract, obtained by HPLC-DAD, under the same analitical conditions.…”

Section: Nmr Analysissupporting

confidence: 66%

“…The carotenoids from orange peel were also extracted using an ionic liquid: 1-butyl-3methylimidazolium chloride ([C 4 mim]Cl) via ultrasonic-assisted extraction according to Murador et al [27]. The extraction was performed by mixing 5.0 g of freeze-dried sample, followed by 1:3 solid-liquid ratio (R (S/L) ) and 1:2 co-solvent ratio (R (IL/E) ) with ethanol applied as co-solvent.…”

Section: Ionic Liquid Extraction With [C 4 Mim]clmentioning

confidence: 99%

“…The extraction was performed by mixing 5.0 g of freeze-dried sample, followed by 1:3 solid-liquid ratio (R (S/L) ) and 1:2 co-solvent ratio (R (IL/E) ) with ethanol applied as co-solvent. The homogenization was performed with an ultrasound probe (Unique, model DES500, Ultronique, Indaiatuba, Brazil) of 20 kHz and 200 W, at 80% amplitude, under an ice bath, for 5 min, followed by vacuum filtration; the process was repeated six times [27].…”

Section: Ionic Liquid Extraction With [C 4 Mim]clmentioning

confidence: 99%

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Green Extraction Approaches for Carotenoids and Esters: Characterization of Native Composition from Orange Peel

et al. 2019

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Orange peel is a by-product produced in large amounts that acts as a source of natural pigments such as carotenoids. Xanthophylls, the main carotenoid class found in citrus fruit, can be present in its free form or esterified with fatty acids, forming esters. This esterification modifies the compound’s chemical properties, affecting their bioavailability in the human body, and making it important to characterize the native carotenoid composition of food matrices. We aimed to evaluate the non-saponified carotenoid extracts of orange peel (cv. Pera) obtained using alternative green approaches: extraction with ionic liquid (IL), analyzed by high performance liquid chromatography coupled to a diode array detector with atmospheric pressure chemical ionization and mass spectrometry HPLC-DAD-APCI-MS, and supercritical fluid extraction (SFE), followed by supercritical fluid chromatography with atmospheric pressure chemical ionization and triple quadrupole mass spectrometry detection (SFC-APCI/QqQ/MS) in an online system. Both alternative green methods were successfully applied, allowing the total identification of five free carotenoids, one apocarotenoid, seven monoesters, and 11 diesters in the extract obtained with IL and analyzed by HPLC-DAD-APCI-MS, and nine free carotenoids, six carotenoids esters, 19 apocarotenoids, and eight apo-esters with the SFE-SFC-APCI/QqQ/MS approach, including several free apocarotenoids and apocarotenoid esters identified for the first time in oranges, and particularly in the Pera variety, which could be used as a fruit authenticity parameter.

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Section: Nmr Analysissupporting

confidence: 66%

Section: Ionic Liquid Extraction With [C 4 Mim]clmentioning

confidence: 99%

Section: Ionic Liquid Extraction With [C 4 Mim]clmentioning

confidence: 99%

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Green Extraction Approaches for Carotenoids and Esters: Characterization of Native Composition from Orange Peel

et al. 2019

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“…A new alternative to the use of traditional solvents was proposed by Murador et al [ 57 ]. They published a method to extract carotenoids from orange peel by UAE using ionic liquids (ILs) as solvents.…”

Section: Principal Non-conventional Technologies To Extract High Bmentioning

confidence: 99%

High Biological Value Compounds Extraction from Citrus Waste with Non-Conventional Methods

Anticona

Blesa

Frígola

et al. 2020

Foods

115

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Citrus fruits are extensively grown and much consumed around the world. Eighteen percent of total citrus cultivars are destined for industrial processes, and as a consequence, large amounts of waste are generated. Citrus waste is a potential source of high biological value compounds, which can be used in the food, pharmaceutical, and cosmetic industries but whose final disposal may pose a problem due to economic and environmental factors. At the same time, the emerging need to reduce the environmental impact of citrus waste and its responsible management has increased. For these reasons, the study of the use of non-conventional methods to extract high biological value compounds such as carotenoids, polyphenols, essential oils, and pectins from this type of waste has become more urgent in recent years. In this review, the effectiveness of technologies such as ultrasound assisted extraction, microwave assisted extraction, supercritical fluid extraction, pressurized water extraction, pulsed electric field, high-voltage electric discharges, and high hydrostatic pressures is described and assessed. A wide range of information concerning the principal non-conventional methods employed to obtain high-biological-value compounds from citrus waste as well as the most influencing factors about each technology are considered.

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“…Ionic liquids (ILs) are composed of organic cations and anions, and liquid at room temperature (Murador et al 2019). The structure of zwitterion determines the variety and number of ionic liquids.…”

Section: Responsible Editor: Tito Roberto Cadaval Jrmentioning

confidence: 99%

Carbon material–immobilized ionic liquids were applied on absorption of Hg2+ from water phase

Sun

Wang

et al. 2020

Environ Sci Pollut Res

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In this study, several immobilized ionic liquid adsorbents on carbon materials were synthesized with impregnation method. The carrier materials were activated carbon and three kinds of multi-walled carbon nanotubes. And the synthetic adsorbents immobilized different kinds of ionic liquids were characterized by Boehm titration, FT-IR, XPS, TG, and BET analysis, respectively. Finally, carbon materials after [C4mim]HSO 4 immobilization were selected as adsorbent to remove Hg 2+ from water phase. The optimum conditions of adsorption test of ionic liquid immobilized by multi-walled carbon nanotubes were as follows: the initial concentration of Hg 2+ was 400 mg/L, the adsorbent addition amount was 40 mg, the temperature was 20°C, the reaction time was 200 min, the removal rate of Hg 2+ peaked at 62.95%, the adsorption capacity was reached 79.00 mg/g. The optimum conditions of adsorption test of ionic liquid immobilized by activated carbon were as follows: the initial concentration of Hg 2+ was 300 mg/L, the adsorbent addition amount was 0.2 g, the temperature was 20°C, pH was 2.0, the reaction time was 100 min, the removal rate of Hg 2+ was more than 99%, the adsorption capacity was 118.65 mg/g. The adsorption isotherm fitting study found that the adsorption of adsorbent on Hg 2+ was more in line with the Langmuir model, and the adsorption kinetics study shows that the adsorption process is consistent with the pseudo-second-order kinetic equation. The results of kinetic analysis are further verified by thermodynamic analysis.

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Ionic liquid associated with ultrasonic-assisted extraction: A new approach to obtain carotenoids from orange peel

Cited by 85 publications

References 50 publications

Green Extraction Approaches for Carotenoids and Esters: Characterization of Native Composition from Orange Peel

Green Extraction Approaches for Carotenoids and Esters: Characterization of Native Composition from Orange Peel

High Biological Value Compounds Extraction from Citrus Waste with Non-Conventional Methods

Carbon material–immobilized ionic liquids were applied on absorption of Hg2+ from water phase

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