Kinetics and thermodynamics of the solid-liquid extraction process of total polyphenols, antioxidants and extraction yield from Asteraceae plants

Tušek, Ana Jurinjak; Benković, Maja; Cvitanović, Ana Belščak; Valinger, Davor; Jurina, Tamara; Kljusurić, Jasenka Gajdoš

doi:10.1016/j.indcrop.2016.07.015

Cited by 84 publications

(36 citation statements)

References 20 publications

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“…Significant ( p < 0.01) negative changes (Table , AB coefficient) were observed in the TEY with the simultaneous increase in extraction temperature and time (Figure a); this parameter significantly ( p < 0.01) increased with the increase in L/S ratio during the process period (Figure b), or in all extraction temperatures (Figure c) when the other factor was held constant. This was in agreement with the results obtained from study of Jurinjak Tusek () with dandelion, chamomile, marigold, and yarrow extracts.…”

Section: Resultssupporting

confidence: 92%

“…Jurinjak Tusek et al () investigated the kinetics of the solid–liquid extraction process of total polyphenols and extraction yield from Asteraceae family plants, including chamomile, dandelion, marigold, and yarrow at temperatures of 40 to 80°C during 90 min extraction period. Their results were in the line with our findings as they reported that the highest total polyphenol contents and extraction yield achieved at 80°C.…”

Section: Resultsmentioning

confidence: 99%

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Optimization of heat- and ultrasound-assisted extraction of polyphenols from dried rosemary leaves using response surface methodology

Hosseini

Bolourian

Hamgini

et al. 2018

J Food Process Preserv

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The conditions used in heat‐ and ultrasound‐assisted extraction (HAE and UAE, respectively) of polyphenols from rosemary leaves were optimized using response surface methodology. The optimum HAE conditions included an extraction time of 132.80 min, temperature of 70°C, and 20:1 liquid‐to‐solid ratio, resulting in the maximum total extraction yield (TEY, 17.80%) or total polyphenol content (TPC, 147.56 mg GAE/g of extract DW), and minimum IC50 (994.68 μg/ml); the maximum TEY (20.82%) or TPC (185.16 mg GAE/g of extract DW), and minimum IC50 (805.84 μg/ml) in the UAE process were obtained using optimum conditions, including time of 12.60 min, power of 200 W, and ethanol concentration of 56.26%. The lowest IC50 (787.70 μg/ml) was recorded using a solvent mixture of water and ethanol (56%) in the HAE procedure similar to the amount determined for the BHT antioxidant (714.79 μg/ml), thus confirming the efficiency of the extraction procedure. Practical applications The antioxidant properties of rosemary leaves are well characterized; hence, this plant’s extract is approved as the only accepted natural food antioxidant in the EU. Generally, the extraction of active compounds from rosemary leaves is performed by the HAE method. However, it is recommended to use sustainable technologies, such as UAE. The optimization of both conventional and UAE of polyphenols from rosemary leaves has not been studied in the literature. Therefore, the purpose of the present study was to introduce the optimal conditions of the HAE and UAE methods required to obtain maximum extraction efficiency of polyphenol compounds from rosemary leaves, and then was to compare possible procedures so that a comprehensive method to be developed.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Optimization of heat- and ultrasound-assisted extraction of polyphenols from dried rosemary leaves using response surface methodology

Hosseini

Bolourian

Hamgini

et al. 2018

J Food Process Preserv

View full text Add to dashboard Cite

show abstract

“…The guidelines described by M., Mulas and M.R., Cani [47] were applied to characterize the morphology of both, leaves and berries, to confirm that the samples had been collected from different ecotypes. The samples were subjected to a pretreatment to improve the contact surface with the solvent [51]. First, the seeds were separated from the pulp.…”

Section: Methodsmentioning

confidence: 99%

Alternative Ultrasound-Assisted Method for the Extraction of the Bioactive Compounds Present in Myrtle (Myrtus communis L.)

et al. 2019

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The bioactive compounds in myrtle berries, such as phenolic compounds and anthocyanins, have shown a potentially positive effect on human health. Efficient extraction methods are to be used to obtain maximum amounts of such beneficial compounds from myrtle. For that reason, this study evaluates the effectiveness of a rapid ultrasound-assisted method (UAE) to extract anthocyanins and phenolic compounds from myrtle berries. The influence of solvent composition, as well as pH, temperature, ultrasound amplitude, cycle and solvent-sample ratio on the total phenolic compounds and anthocyanins content in the extracts obtained were evaluated. The response variables were optimized by means of a Box-Behnken design. It was found that the double interaction of the methanol composition and the cycle, the interaction between methanol composition and temperature, and the interaction between the cycle and solvent-sample ratio were the most influential variables on the extraction of total phenolic compounds (92.8% methanol in water, 0.2 s of cycle, 60 °C and 10:0.5 mL:g). The methanol composition and the interaction between methanol composition and pH were the most influential variables on the extraction of anthocyanins (74.1% methanol in water at pH 7). The methods that have been developed presented high repeatability and intermediate precision (RSD < 5%) and the bioactive compounds show a high recovery with short extraction times. Both methods were used to analyze the composition of the bioactive compounds in myrtle berries collected from different locations in the province of Cadiz (Spain). The results obtained by UAE were compared to those achieved in a previous study where microwave-assisted extraction (MAE) methods were employed. Similar extraction yields were obtained for phenolic compounds and anthocyanins by MAE and UAE under optimal conditions. However, UAE presents the advantage of using milder conditions for the extraction of anthocyanins from myrtle, which makes of this a more suitable method for the extraction of these degradable compounds.

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“…The fitting mathematical model is a useful engineering tool for the optimization, simulation, design and control of processes and contributes to better use of energy, time and solvents. The phenomenological, pseudo-second order and power law model listed in Table 1 have modeled the solid-liquid extraction process for natural products from plant materials [42][43][44]46,47]. The extraction kinetics of flavonoids (mg/g) from Mairei Yew for HRE, UAE and UHRE were investigated according to three models listed in Table 1.…”

Section: Extraction Kinetics For Flavonoidsmentioning

confidence: 99%

Coupling Ultrasound with Heat-Reflux to Improve the Extraction of Quercetin, Kaempferol, Ginkgetin and Sciadopitysin from Mairei Yew Leaves

Zhao

Ren

et al. 2019

Applied Sciences

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The coupling of ultrasound and heat–reflux extraction (UHRE) was developed for separation for quercetin (QU), kaempferol (KA), ginkgetin (GI) and sciadopitysin (SC) from Mairei Yew leaves. The Box–Behnken design was used to optimize the UHRE conditions for obtaining the maximum yield of flavonoids. The optimal extraction conditions were as follows: boiling 80% methanol (V/V) for extraction solvent, 20 min for the extraction time, 200 W for the ultrasonic power and 26 mL/g for the liquid–solid ratio. By UHRE, the yields of QU, KA, GI and SC were, respectively, 0.109, 0.406, 0.031 and 0.355 mg/g, and total yield of four flavonoids was 0.901 mg/g, which were, respectively, 1.25-fold and 1.23-fold higher than those by using ultrasonic-assisted extraction (UAE) and heating reflux extraction (HRE). Moreover, the extraction time for the equilibrium yields of flavonoids using UHRE was 83.3% and 27.8%, respectively, less than the corresponding time using UAE and HRE. Compared with HRE and UAE, UHRE showed the increase of cell disruption degree as observed by scanning electron microscopy, which may be the reason for high yield and rapid extraction of target compounds.

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Kinetics and thermodynamics of the solid-liquid extraction process of total polyphenols, antioxidants and extraction yield from Asteraceae plants

Cited by 84 publications

References 20 publications

Optimization of heat- and ultrasound-assisted extraction of polyphenols from dried rosemary leaves using response surface methodology

Optimization of heat- and ultrasound-assisted extraction of polyphenols from dried rosemary leaves using response surface methodology

Alternative Ultrasound-Assisted Method for the Extraction of the Bioactive Compounds Present in Myrtle (Myrtus communis L.)

Coupling Ultrasound with Heat-Reflux to Improve the Extraction of Quercetin, Kaempferol, Ginkgetin and Sciadopitysin from Mairei Yew Leaves

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