Study on Separation and Purification of Resveratrol in Wine Grape Residue with Aqueous Two Phase Extraction Method

Wang, Biao; Zhuang, Yan; Lu, Yu

doi:10.4028/www.scientific.net/amr.550-553.1743

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…These small variations are thought to be due to slight oxidation and/or hydrolysis of RVT. In literature, ATPSs based on alcohols 48,49 were reported to yield promising extraction performance indicators, but the most common techniques relied on classical LLEs using, for example, ionic liquids, which attained high extraction efficiencies (E > 97%). 50−52 Therefore, the systems studied in this work provided similar results and are thought to convey more biocompatible extractive media compared to alcohol-and ionic-liquid-containing systems given their denaturing activity and larger ionic strength, respectively.…”

Section: Liquid−liquid Extractionmentioning

confidence: 99%

Partition Studies of Resveratrol in Low-Impact ATPS for Food Supplementation

Rebelo,

Velho,

Macedo

2023

Ind. Eng. Chem. Res.

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Antioxidant-rich food supplements can effectively address widespread nutritional deficiencies in the human diet and simultaneously reduce the concentration of reactive oxygen species (ROS) due to the free radical scavenging activity of antioxidants, minimizing inflammation and oxidative stress. Resveratrol (RVT) is a very important antioxidant which can be extracted from food industry byproducts such as grape skins, contributing to a more circular economy and reducing the environmental impact of the extraction processes. In this work, RVT was successfully extracted in the aqueous two-phase systems (ATPSs) {ethyl lactate (1) + Na 3 Citrate or K 3 Citrate or Na 2 Succinate or NaKTartrate (2) + water (3)} at 298.15 K and 0.1 MPa, which provided biocompatible and sustainable extractive media. The studied ATPS yielded partition coefficients (K) above unity, indicating a preference for the top phase (rich in ethyl lactate), which hints at a successful extraction of this phenolic compound. Larger tie-lines generally resulted in larger partition coefficients (K) and larger extraction efficiencies (E), favoring solute migration to the top phase. The most promising partition coefficients (K = 40 ± 6 and 41 ± 9) and extraction efficiencies (E/% = 98 ± 1 and 95.0 ± 0.6) were obtained for the longest tie-lines (TLL = 77.66 and 70.73 m%) for {ethyl lactate (1) + K 3 Citrate (2) + water (3)} and {ethyl lactate (1) + NaKTartrate (2) + water (3)}, respectively. Additionally, the effect of pH on the UV−vis absorbance spectrum of RVT was studied to minimize errors in solute quantification, resulting in low antioxidant mass losses (<5%).

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Section: Liquid−liquid Extractionmentioning

confidence: 99%

Partition Studies of Resveratrol in Low-Impact ATPS for Food Supplementation

Rebelo,

Velho,

Macedo

2023

Ind. Eng. Chem. Res.

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“…To clarify the relationship between the compounds' mechanisms of action and their concentrations, researchers tried to synthesize 7 or extract resveratrol and polydatin from raw plant tissues 8–12 . Extraction methods include ultrasonic‐assisted extraction, 12 liquid–liquid extraction 13 and macroporous resin adsorption 11 . However, artificial synthesis is time consuming and laborious, while the extraction methods mentioned above are not efficient enough.…”

Section: Introductionmentioning

confidence: 99%

“…Extraction methods include ultrasonic-assisted extraction, 12 liquidliquid extraction 13 and macroporous resin adsorption. 11 However, artificial synthesis is time consuming and laborious, while the extraction methods mentioned above are not efficient enough.…”

mentioning

confidence: 99%

Conductive polymer sorbent for extraction and determination of resveratrol and polydatin in Polygonum cuspidatum root samples

Xue

Deng

Ge³

et al. 2022

Phytochemical Analysis

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Introduction The quantitative analysis of trace resveratrol and polydatin in plant tissues is suitable for elucidation of the compounds' mechanisms of action. Objectives The main objective of this work was to develop a feasible and effective sample pretreatment method to measure the concentrations of resveratrol and polydatin in complex samples. Methodology A polymer sorbent, poly(2‐mercaptobenzimidazole), was electrochemically prepared and utilized for selective extraction, while resveratrol and polydatin were used as target analytes. The sorbent was characterized by cyclic voltammetry, scanning electron microscopy and Fourier transform infrared spectroscopy. After extraction and elution, the analytes were analyzed by a Thermo U3000 HPLC system. Several affecting parameters, including the volume of elution solution, sample pH value, sample flow rate and sample volume, were evaluated and optimized. Results The proposed method showed good linearity with low limits of detection (from 0.5 to 0.8 ng·mL−1) and ideal accuracy with spiked recoveries from 81.30% to 99.16%. A good enrichment factor (more than 200‐fold) together with good sensitivity was obtained with this method. Analysis of resveratrol and polydatin in Polygonum cuspidatum samples by this method is efficient. Conclusion The method developed in this work exhibits several significant merits, including easy operation and high extraction efficiency, indicating that electrochemically prepared polymer sorbent is useful for sample pretreatment and analysis of traditional Chinese medicine samples.

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Preliminary separation and purification of resveratrol from extract of peanut (Arachis hypogaea) sprouts by macroporous adsorption resins

Xiong

Zhang

et al. 2014

Food Chemistry

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Study on Separation and Purification of Resveratrol in Wine Grape Residue with Aqueous Two Phase Extraction Method

Cited by 5 publications

References 3 publications

Partition Studies of Resveratrol in Low-Impact ATPS for Food Supplementation

Partition Studies of Resveratrol in Low-Impact ATPS for Food Supplementation

Conductive polymer sorbent for extraction and determination of resveratrol and polydatin in Polygonum cuspidatum root samples

Preliminary separation and purification of resveratrol from extract of peanut (Arachis hypogaea) sprouts by macroporous adsorption resins

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