Extraction of phenolic compounds from olive pomace by using natural deep eutectic solvents and innovative extraction techniques

Chanioti, Sofia; Tzia, Constantina

doi:10.1016/j.ifset.2018.07.001

Cited by 231 publications

(153 citation statements)

References 41 publications

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“…DESs/NADESs have important advantages over conventionally used organic solvents, such as no or low toxicity, biodegradability, low cost and easy preparation [24]. While the efficiency of classical extraction processes can be significantly improved by applying UAE [35,36], a combination of UAE and NADESs can be also effective [33,[37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Choline Chloride Based Natural Deep Eutectic Solvents as Extraction Media for Extracting Phenolic Compounds from Chokeberry (Aronia melanocarpa)

et al. 2020

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For the isolation of selected phenolic compounds from dried chokeberries, natural deep eutectic solvents (NADESs) were investigated as a green alternative to conventionally used extraction solvents. Four types of NADESs were synthesised, with choline chloride as the hydrogen bond acceptor in combination with different hydrogen bond donors (sugars, organic acid and urea). Ultrasound-assisted extraction was used to improve the extractability of the phenolic compounds and the results were compared to those obtained with 80% methanol as the extraction media. The highest values of total phenols and total flavonoids were found in the extract obtained with choline chloride–fructose NADES (36.15 ± 3.39 mg gallic acid g−1 dry weight (DW) and 4.71 ± 0.33 mg rutin g−1 DW, respectively). The extraction recoveries for the individual phenolic compounds depended strongly on the phenolic compound’s structure, with relative mean values between 70% and 97%.

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Section: Introductionmentioning

confidence: 99%

Choline Chloride Based Natural Deep Eutectic Solvents as Extraction Media for Extracting Phenolic Compounds from Chokeberry (Aronia melanocarpa)

et al. 2020

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“…Moreover, several parameters can affect the efficiency of the extraction process, namely the type and the concentration of the solvent, solvent/solid ratio, time of the extraction and temperature (Ballesteros et al, 2014). Many solvents can be used for the extraction of phenolic compounds, such as methanol, ethanol, acetone, water or their mixtures with water (Chanioti & Tzia, 2018;Manousi et al, 2019). The recovery of the phenolic compounds depends on the type of solvent used, its polarity and the solubility of phenolic compounds in the extraction solvent.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of phenolic and antioxidant properties of strawberry as a function of extraction conditions

Guiné

Correia

Ferrão

et al. 2020

Braz. J. Food Technol.

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We studied the extraction of antioxidant phenolic compounds, anthocyanins and the evaluation of antioxidant activity of strawberries in different extraction conditions, varying the type of solvent (ethanol:water (50%) and acetone:water (60%), the extraction time (15 and 60 min) and the solvent volume to sample mass ratio (5 mL/g and 20 mL/g). In addition, we performed principal component analysis and cluster analysis. The results showed that, although the two solvents tested had similar influence on total phenolic compounds extraction and antioxidant activity, the 60 minutes of extraction and the use of the solvent volume/sample mass ratio of 20 mL/g were the best extraction conditions, both for the 1st and 2nd recovered extracts. However, the solvent had a marked effect on anthocyanins’ extraction, so that acetone/water extracted almost the double as compared to ethanol/water, for the same extraction conditions. Finally, factor analysis allowed identifying a grouping structure of two components, which was confirmed by the dendogram obtained from cluster analysis.

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“…Particular attention has been recently devoted to optimize nonconventional extraction procedures able to produce high‐quality phytocomplexes by using nontoxic solvents. These protocols are usually assisted by ultrasound, microwave, or supercritical fluid extraction (SFE) using carbon dioxide as solvent (Chanioti & Tzia, ; Herrero, Pilar Sánchez‐Camargo, Cifuentes, & Ibáñez, ; Xie et al, ). Several studies also indicate the possibility to increase the stability and the bioavailability of antioxidant and natural bioactive molecules using new carrier systems, like liposomes or polymeric micelles’ formulations (Bonechi et al, ; Leone et al, , ; Zhang, Huang, & Li, ).…”

Section: Introductionmentioning

confidence: 99%

Chemical characterization and antioxidant properties of products and by‐products from Olea europaea L.

Tamasi

Baratto

Bonechi

et al. 2019

Food Science & Nutrition

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The products and by‐products of Olea europaea L.: olive fruits (primary agricultural product), oils (primary agro‐industrial product), pomaces (agro‐industrial processing by‐product), and leaves (agricultural practices by‐product), are promising sources of bioactive compounds. In the present study, qualitative and quantitative analyses of selected bioactive components in olive fruits, oils, and pomaces were performed. Total polyphenol content and antioxidant activity were analyzed in all samples (humid pomaces 2015: TPP, 26.0 ± 1.5–43.7 ± 3.0 g(GAEq)/kg DW; TEAC/ABTS, 189.5 ± 3.7–388.1 ± 12.0 mmol(Trx)kg DW). Radical (DPPH) quenching potential was analyzed via photometric and EPR methods, obtaining Vis/EPR signal ratio by 1.05 ± 0.45 and 1.66 ± 0.39 for fruits and pomaces, respectively. Through HPLC‐UV and HPLC‐MS/MS techniques, oleuropein and hydroxytyrosol, as well as selected hydroxycinnamic acids and flavonoids, were identified and quantified in olive fruits and pomaces. The main components were rutin, luteolin, and chlorogenic acid. Cytotoxic assay on fibroblast cells revealed toxic effects for selected extracts at highest tested concentrations (5%).

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Extraction of phenolic compounds from olive pomace by using natural deep eutectic solvents and innovative extraction techniques

Cited by 231 publications

References 41 publications

Choline Chloride Based Natural Deep Eutectic Solvents as Extraction Media for Extracting Phenolic Compounds from Chokeberry (Aronia melanocarpa)

Choline Chloride Based Natural Deep Eutectic Solvents as Extraction Media for Extracting Phenolic Compounds from Chokeberry (Aronia melanocarpa)

Evaluation of phenolic and antioxidant properties of strawberry as a function of extraction conditions

Chemical characterization and antioxidant properties of products and by‐products from Olea europaea L.

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