Improving Polyphenol Extraction from Lemon Residues by Pulsed Electric Fields

Peiró, Sara; Luengo, Elisa; Segovia, Francisco; Raso, Javier; Pablos, María Pilar Almajano

doi:10.1007/s12649-017-0116-6

Cited by 66 publications

(26 citation statements)

References 37 publications

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“…Contrary to lower electric fields (≈13 kV/cm), high-voltage electric discharges such as 40 kV/cm produce a greater fragmentation of solids like mango peels due to a process of cavitation and bubble explosion, achieving higher degree of extraction [ 192 ]. However, extraction yields are related to optimum values of electric field strength [ 198 ].…”

Section: Electrical Force Methodsmentioning

confidence: 99%

“…These indexes are strongly related to electric field strength, and for the same number of pulses, increasing the electric field strength increases the index of disintegration [ 198 ]. Peiró et al exposed lemon residues to PEF as pretreatment and found that less than 5 kV/cm did not show significant cell damage ( Z c < 0.2) whilst values of 7 kV/cm increased the index to 0.5.…”

Section: Electrical Force Methodsmentioning

confidence: 99%

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Environmentally Friendly Methods for Flavonoid Extraction from Plant Material: Impact of Their Operating Conditions on Yield and Antioxidant Properties

Luna

Ramírez-Garza

Saldivar

2020

The Scientific World Journal

158

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The flavonoids are compounds synthesized by plants, and they have properties such as antioxidant, anticancer, anti-inflammatory, and antibacterial, among others. One of the most important bioactive properties of flavonoids is their antioxidant effect. Synthetic antioxidants have side toxic effects whilst natural antioxidants, such as flavonoids from natural sources, have relatively low toxicity. Therefore, it is important to incorporate flavonoids derived from natural sources in several products such as foods, cosmetics, and drugs. For this reason, there is currently a need to extract flavonoids from plant resources. In this review are described the most important parameters involved in the extraction of flavonoids by unconventional methods such as ultrasound, pressurized liquid extraction, mechanochemical, high hydrostatic pressure, supercritical fluid, negative pressure cavitation, intensification of vaporization by decompression to the vacuum, microwave, infrared, pulsed electric field, high-voltage electrical discharges, and enzyme-assisted extraction. There are no unified operation conditions to achieve high yields and purity. Notwithstanding, progress has been achieved in the development of more advanced and environmentally friendly methods of extraction. Although in literature are found important advances, a complete understanding of the extraction process in each of the unconventional techniques is needed to determine the thermodynamic and kinetic mechanisms that govern each of the techniques.

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Section: Electrical Force Methodsmentioning

confidence: 99%

Section: Electrical Force Methodsmentioning

confidence: 99%

Environmentally Friendly Methods for Flavonoid Extraction from Plant Material: Impact of Their Operating Conditions on Yield and Antioxidant Properties

Luna

Ramírez-Garza

Saldivar

2020

The Scientific World Journal

158

View full text Add to dashboard Cite

show abstract

“…The conventional extraction methods, such as maceration and Soxhlet extraction, consume large volumes of organic solvent and long extraction time, providing lower efficiency (Poojary et al, 2017). To overcome the shortcoming, pressurized liquid extraction (PLE) (Corazza et al, 2018), microwave-assisted extraction (MAE) (Asofiei, Calinescu, Trifan, David, & Gavrila, 2016), ultrasound-assisted extraction (UAE) (Kumari, Tiwari, Hossain, Rai, & Brunton, 2017), pulsed electric field-assisted extraction (PEF) (Peiró, Luengo, Segovia, Raso, & Almajano, 2017), and supercritical-fluid extraction (Porto & Natolino, 2017) have been studied for polyphenol extraction, but most of them are rarely applied in industry due to various reasons. Among the extraction methods, compared to MAE and PLE, UAE is more reliable and practical for industry.…”

Section: Extraction Of Polyphenol From Stevia Re-baudiana (Bertoni) Lmentioning

confidence: 99%

Polyphenols from Stevia rebaudiana (Bertoni) leaves and their functional properties

Myint

Xia

et al. 2020

Journal of Food Science

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The major polyphenol components from Stevia rebaudiana (Bertoni) leaves (PPS) are chlorogenic acids, a polyphenol family of esters, including hydroxycinnamic acids with quinic acid, which possesses excellent hydrophilic antioxidant activity and other therapeutic properties. As an abundant byproduct during production of steviol glycosides, the PPS would be a new antioxidantive food resource or additives applied in foods and drugs with antidiabetic function. Extracting PPS from S. rebaudiana (Bertoni) leaves together with steviol glycosides would be an economic process, which will change most operation process in current Stevia factories. The quantification of PPS needs to be unified for regulation. In view of the current regulation status of polyphenols and extracts from Stevia, the PPS would be ready to go to the market with few regulation barriers in the near future. This review will summarize the analysis, extraction, and some functional properties of PPS, such as antioxidant, antidiabetic, antimicrobial, anti-inflammatory, and anticancer.

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“…Conditions of PEF treatment played an important role in the change of cellular disintegration index ( Zp ), which was used to determine the effect of PEF conditions to permeabilize samples. In the case of lemon peels, Zp values increased to a highest value of 0.55, when the electric field strength and treatment time increased (up to 9 kV/cm, 30 pulses of 3 µs) [ 144 ].…”

Section: Drying and Extraction In Fvw By-products Processingmentioning

confidence: 99%

Fate of Residual Pesticides in Fruit and Vegetable Waste (FVW) Processing

Nguyen

Rosello

Bélanger

et al. 2020

Foods

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Plants need to be protected against pests and diseases, so as to assure an adequate production, and therefore to contribute to food security. However, some of the used pesticides are harmful compounds, and thus the right balance between the need to increase food production with the need to ensure the safety of people, food and the environment must be struck. In particular, when dealing with fruit and vegetable wastes, their content in agrochemicals should be monitored, especially in peel and skins, and eventually minimized before or during further processing to separate or concentrate bioactive compounds from it. The general objective of this review is to investigate initial levels of pesticide residues and their potential reduction through further processing for some of the most contaminated fruit and vegetable wastes. Focus will be placed on extraction and drying processes being amid the main processing steps used in the recuperation of bioactive compounds from fruit and vegetable wastes.

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Improving Polyphenol Extraction from Lemon Residues by Pulsed Electric Fields

Cited by 66 publications

References 37 publications

Environmentally Friendly Methods for Flavonoid Extraction from Plant Material: Impact of Their Operating Conditions on Yield and Antioxidant Properties

Environmentally Friendly Methods for Flavonoid Extraction from Plant Material: Impact of Their Operating Conditions on Yield and Antioxidant Properties

Polyphenols from Stevia rebaudiana (Bertoni) leaves and their functional properties

Fate of Residual Pesticides in Fruit and Vegetable Waste (FVW) Processing

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