Utilization of natural deep eutectic solvents and ultrasound-assisted extraction as green extraction technique for the recovery of bioactive compounds from date palm (Phoenix dactylifera L.) seeds: An investigation into optimization of process parameters

Airouyuwa, Jennifer Osamede; Mostafa, Hussein; Riaz, Asad; Maqsood, Sajid

doi:10.1016/j.ultsonch.2022.106233

Cited by 36 publications

(24 citation statements)

References 76 publications

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“…The highest extraction yield of NADES1 and NADES3 can be ascribed to NADES‐polar suitability with terpenoids, tannins, and flavonoids (Xu et al ., 2019). Additionally, the acetic acid‐based NADES are more polar than citric‐ and lactic‐based ones, matching the polarity of tannins, flavonoids, and terpenoids in UTLP (Airouyuwa et al ., 2022). Additionally, the polarity of glucose, glycerol, and isopropyl alcohol are in sequence: glucose>glycerol> isopropyl alcohol; thus, NADES1 has the highest polarity among acetic acid‐based NADES, followed by NADES3 ( Glucose n.d; Glycerol n.d; Isopropyl alcohol n.d).…”

Section: Resultsmentioning

confidence: 99%

“…The application of NADES in the recovery of bioactive compounds from plant sources has been widely researched. A study by (Airouyuwa et al ., 2022) used NADES‐based (UAE) for obtaining phenolics from date palms, indicating the phenolic content of 145 mg GAE/g at optimised UAE conditions. Additionally, NADES have been efficiently used for acquiring flavonoids from Flos sophorae (Nam et al ., 2015), anthocyanin from Catharanthus roseus (Dai et al ., 2016), phenolics and flavonoids from Moringa leaves (Wu et al ., 2020), and flavonoids and organic acid from Hibiscus manihot L. flower (Liu et al ., 2022).…”

Section: Introductionmentioning

confidence: 99%

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Ultrasonic‐assisted and enzymatic‐assisted extraction to recover tannins, flavonoids, and terpenoids from used tea leaves using natural deep eutectic solvents

Vo,

Tran,

Phan

et al. 2023

Int J of Food Sci Tech

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SummaryThe conventional extraction technique using organic solvent was employed to recover bioactive compounds from plants; however, this technique showed low efficiency and caused environmental pollution. Novel extraction techniques such as ultrasound‐assisted extraction (UAE) and enzymatic‐assisted extraction (EAE) combined with natural deep eutectic solvent were developed to overcome this problem. The efficiency of a binary NADES system with sonication was evaluated based on total tannin contents (TTAC), total flavonoid content (TFC), and total terpenoid content (TTC). The NADES system with a molar ratio of acetic acid and glycerol at 2:1 showed the highest TTAC and TFC, while acetic acid and glucose at 2:1 yielded the highest TTC. The impact of UAE and EAE parameters on extraction yield was examined. Combined methods, including ultrasonic‐enzymatic assisted extraction (UEAE), enzymatic‐ultrasonic assisted extraction (EUAE), and simultaneous ultrasonic‐enzymatic assisted extraction (SUEAE), were performed using NADES. UEAE exhibited the highest extraction yield and biological activities. Scanning electron microscopy (SEM) was employed to examine the surface variations of used tea leaves before and after treatment. This study demonstrated that UEAE is a sustainable technique for recovering valuable compounds from used tea leaves.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultrasonic‐assisted and enzymatic‐assisted extraction to recover tannins, flavonoids, and terpenoids from used tea leaves using natural deep eutectic solvents

Vo,

Tran,

Phan

et al. 2023

Int J of Food Sci Tech

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“…An overview of the newest findings in the extraction of these valuable compounds from different types of plant materials using DESs is presented in Table . Several factors (the molar ratio of the HBD and HBA in DES, the method of extraction, the temperature, water addition, and the time of extraction) influencing the efficiency of the process are included. − …”

Section: The Most Interesting Bioactive Compounds Extracted With Dess...mentioning

confidence: 99%

The Most Potent Natural Pharmaceuticals, Cosmetics, and Food Ingredients Isolated from Plants with Deep Eutectic Solvents

Wawoczny

Gillner

2023

J. Agric. Food Chem.

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There is growing interest in reducing the number of synthetic products or additives and replacing them with natural ones. The pharmaceutical, cosmetic, and food industries are especially focused on natural and bioactive chemicals isolated from plants or microorganisms. The main challenge here is to develop efficient and ecological methods for their isolation. According to the strategies and rules of sustainable development and green chemistry, green solvents and environmentally friendly technologies must be used. The application of deep eutectic solvents as efficient and biodegradable solvents seems to be a promising alternative to traditional methods. They are classified as being green and ecological but, most importantly, very efficient extraction media compared to organic solvents. The aim of this review is to present the recent findings on green extraction, as well as the biological activities and the possible applications of natural plant ingredients, namely, phenolics, flavonoids, terpenes, saponins, and some others. This paper thoroughly reviews modern, ecological, and efficient extraction methods with the use of deep eutectic solvents (DESs). The newest findings, as well as the factors influencing the efficiency of extraction, such as water content, and hydrogen bond donor and acceptor types, as well as the extraction systems, are also discussed. New solutions to the major problem of separating DESs from the extract and for solvent recycling are also presented.

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“…23 Airouyuwa et al reported similar tendencies of increasing the amount of phenolics extracted from date palm (Phoenix dactylifera L.) seeds by increasing ultrasound-assisted extraction time and the amount of NADES in relation to the solid. 42 Based on all of the aforementioned BBD results (i.e., the ANOVA results, the interactions between the variables in the extractions from the three matrices, the predicted versus observed values) and the TPC/TAC values obtained in the runs, the best extraction conditions were determined among those tested for each material. For the extraction of phenolics from pomegranate peels, the best conditions were the ones adopted in experiment 2 (the one with the highest TPC, of 84.00 ± 5.36 mg GAE g −1 ): temperature of 50 °C (+1), extraction time of 20 min (−1), and NADES/solid ratio of 20 w/w (0).…”

Section: Experimental Designmentioning

confidence: 99%

Green Strategies for Recovery of Bioactive Phenolic Compounds from Agro-Industrial Wastes (Pomegranate Peels, Almond Hulls, and Elderberry Pomace) Using Natural Deep Eutectic Solvents

Bertolo,

Bogusz Junior,

Mitchell

2023

ACS Food Sci. Technol.

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Natural deep eutectic solvents (NADES) based on choline chloride and organic acids were applied for the recovery of phenolic compounds from three agro-industrial residues: pomegranate peels, almond hulls, and elderberry pomace. Box–Behnken designs were conducted to reach the best extraction conditions, which were 50 °C, 20 min, and 20 w/w NADES/solid for pomegranate peels, 30 °C, 60 min, and 20 w/w NADES/solid for almond hulls, and 40 °C, 60 min, and 30 w/w NADES/solid for elderberry pomace. Punicalagin was the major phenolic in the NADES-based pomegranate extract, with a concentration about 87% higher than that found in the ethanolic extract obtained under the same conditions. The same was valid for (+)-catechin, a major phenolic in almond extracts, and cyanidin-3-sambubioside, a major anthocyanin in elderberry extracts, with concentrations around 27 and 68% higher in the NADES extracts, respectively. These findings show that the extraction of valuable compounds from agro-industrial waste using NADES was improved with accuracy during ultrasound-assisted extractions.

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Utilization of natural deep eutectic solvents and ultrasound-assisted extraction as green extraction technique for the recovery of bioactive compounds from date palm (Phoenix dactylifera L.) seeds: An investigation into optimization of process parameters

Cited by 36 publications

References 76 publications

Ultrasonic‐assisted and enzymatic‐assisted extraction to recover tannins, flavonoids, and terpenoids from used tea leaves using natural deep eutectic solvents

Ultrasonic‐assisted and enzymatic‐assisted extraction to recover tannins, flavonoids, and terpenoids from used tea leaves using natural deep eutectic solvents

The Most Potent Natural Pharmaceuticals, Cosmetics, and Food Ingredients Isolated from Plants with Deep Eutectic Solvents

Green Strategies for Recovery of Bioactive Phenolic Compounds from Agro-Industrial Wastes (Pomegranate Peels, Almond Hulls, and Elderberry Pomace) Using Natural Deep Eutectic Solvents

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