Microwave-assisted extraction of peppermint polyphenols – Artificial neural networks approach

Pavlić, Branimir; Kaplan, Muammer; Bera, Oskar; Olgun, Elmas Öktem; Canlı, Oltan; Milosavljević, Nemanja; Antić, B; Zeković, Zoran

doi:10.1016/j.fbp.2019.09.016

Cited by 43 publications

(29 citation statements)

References 35 publications

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“…In certain cases, like in the present study, the highest values of two responses are achieved under a different set of experimental conditions ( Table 3 ). Somewhat similar conclusions were reported in the study related to extraction of peppermint polyphenols although using microwave-assisted extraction and ethanol as solvent [ 34 ]. Authors reported that a wide range of extraction time (~3–17 min) and liquid/solid ratio (~13–19 mL/g) could be used in a series of optimal process conditions, whereas the certain set of process parameters favors total phenol content but disfavors antioxidant activity determined by ABTS assay.…”

Section: Resultssupporting

confidence: 84%

Simultaneous Hydrolysis of Ellagitannins and Extraction of Ellagic Acid from Defatted Raspberry Seeds Using Natural Deep Eutectic Solvents (NADES)

et al. 2022

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Defatted raspberry seeds were used as an alternative source of antioxidants and ellagic acid (EA) extracted using Natural deep eutectic solvents (NADES). In the preliminary study, the best NADES combination (citric acid-betaine) and the most influential variables (temperature, time, and NADES/plant ratio) were selected for the further optimization process. All samples were analyzed in terms of total polyphenol, EA content, and antioxidant activity. Two sets of optimal conditions were generated by response surface methodology. The first set (Opt1) was designed for higher conversion of ellagitannins to EA while the latter set (Opt2) for higher EA content/100 g extract. Opt1 and Opt2 had higher values for all investigated responses compared to 80% ethanolic extract but had a lower conversion rate of ellagitannins to EA compared to acidified methanol extract. The third set of parameters (Opt3) selected beyond the initial experimental domain was used to obtain a sample with the highest EA content/100 g extract. Due to their nature, NADES extracts are ready to use and could have various technological roles in products since they are antioxidants, acidifiers, and colorants. NADES raspberry extracts exhibited higher anti-proliferative activity compared to ethanolic extracts in terms of EC50 values. However, the main contributor of anti-cancer activity in NADES raspberry extracts were individual NADES compounds and/or their newly formed NADES structure.

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Section: Resultssupporting

confidence: 84%

Simultaneous Hydrolysis of Ellagitannins and Extraction of Ellagic Acid from Defatted Raspberry Seeds Using Natural Deep Eutectic Solvents (NADES)

et al. 2022

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“…The effect of this parameter was attributed to the possibility that the reduced mixture density attained as a result of the higher solvent-to-material ratio increased the ultrasound wave propagation speed while reducing the effect of attenuation of ultrasounds and increasing the transfer of energy/distance covered by wave/time [27,28]. Our findings were in agreement with those reported by Setyaningsih et al [29] for the extraction of polyphenols from rice grains, De Oliveira et al [30] for the extraction of hibalactone in Hydrocotyle umbellata subterraneous parts and Pavlic et al [31] for the extraction of polyphenols from peppermint.…”

Section: Influence Of Solid/liquid Ratiosupporting

confidence: 92%

Ultrasound-Assisted Extraction of Polyphenols from Crude Pollen

2020

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The aim of this study was to evaluate the extraction efficiency of polyphenols from crude pollen by an ultrasonic process. Prior to the polyphenols extraction, the crude pollen was defatted. The extraction from defatted pollen was carried out by varying four extraction parameters: ultrasonic amplitude (20%, 60% and 100%), solid/liquid ratio (10 g/L, 20 g/L and 30 g/L), temperature (35, 50 and 65 °C) and time (10, 20 and 30 min). The extracts were analyzed in terms of extraction yield (%), total phenolic content (TPC) and total flavones content (TFC). The extracted oil was analyzed in terms of fatty acids composition; myristic acid (159.1 µg × g−1) and cis-14-pentadecenoic acid (106.6 µg·g−1) were found in the highest amount in the pollen oil. The optimum conditions of extraction were determined and were, as follows: 100% amplitude of ultrasonic treatment, 30 g/L solid/liquid ratio, 40.85 °C and 14.30 min, which led to the extraction of 366.1 mg GAE/L of TPC and 592.2 mg QE/g of TFC, and also to an extraction yield of 1.92%.

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“…An external calibration for mass accuracy was performed before the analysis. The same method was described in detail by Pavlić et al [ 37 ].…”

Section: Methodsmentioning

confidence: 99%

Pressurized-Liquid Extraction as an Efficient Method for Valorization of Thymus serpyllum Herbal Dust towards Sustainable Production of Antioxidants

et al. 2021

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The aim of this study was to valorize Thymus serpyllum herbal dust, a particular fraction distinguished as an industrial waste from filter-tea production. Pressurized liquid extraction (PLE) was used with the aim of overcoming certain obstacles of conventional extraction techniques in terms of shortening extraction time, reducing solvent consumption and energy costs, using “green” solvents and obtaining high yield and quality products. In order to optimize PLE of T. serpyllum herbal dust, the preliminary screening of the independent variables in order to define the most influential parameters and their domain was done first. After the screening, the optimization study using the face-centered central composite experimental design (CCD) with response surface methodology (RSM) was implemented. Additionally, taking into account the high awareness of the positive influence of antioxidants on the human health and associating it with high content of polyphenolic compounds in various members of Lamiaceae family, PLE has proven to be a great approach for antioxidants recovery from T. serpyllum herbal dust.

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Microwave-assisted extraction of peppermint polyphenols – Artificial neural networks approach

Cited by 43 publications

References 35 publications

Simultaneous Hydrolysis of Ellagitannins and Extraction of Ellagic Acid from Defatted Raspberry Seeds Using Natural Deep Eutectic Solvents (NADES)

Simultaneous Hydrolysis of Ellagitannins and Extraction of Ellagic Acid from Defatted Raspberry Seeds Using Natural Deep Eutectic Solvents (NADES)

Ultrasound-Assisted Extraction of Polyphenols from Crude Pollen

Pressurized-Liquid Extraction as an Efficient Method for Valorization of Thymus serpyllum Herbal Dust towards Sustainable Production of Antioxidants

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