Membrane-Based Clarification and Fractionation of Red Wine Lees Aqueous Extracts

Cassano, Alfredo; Bentivenga, Antonella; Conidi, Carmela; Galiano, Francesco; Saoncella, Omar; Figoli, Alberto

doi:10.3390/polym11071089

Cited by 19 publications

(17 citation statements)

References 42 publications

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“…Membrane separation processes can be used at large scale, with three main objectives: (i) to remove suspended and colloidal matter in the extraction stage by using pressuredriven membrane techniques as microfiltration (MF 0.1-5 µm, 1-10 bar) and/or ultrafiltration (UF 0.5-100 nm, 1-10 bar); (ii) to selectively separate polyphenols from other families of compounds co-extracted in the extraction (e.g., sugars, proteins, lipids) by using pressure-driven membrane techniques as ultrafiltration (UF) and/or nanofiltration (NF) and; (iii) to reduce the volume of the polyphenols rich streams by using pressure-driven membrane techniques as nanofiltration (NF 5-10 nm, 10-30 bar) and/or reverse osmosis (RO < 0.5 nm, 35-100 bar) [20,[105][106][107][108][109][110][111][112][113].…”

Section: Conditioning Of Polyphenol Extracts: From Particulate Matter...mentioning

confidence: 99%

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Tapia-Quirós

Montenegro-Landívar

Reig

et al. 2022

Foods

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The production of olive oil and wine are two of the main agri-food economic activities in Southern Europe. They generate large amounts of solid and liquid wastes (e.g., olive pomace, olive mill wastewater, grape pomace, grape stems, wine lees, and wine processing wastewater) that represent a major environmental problem. Consequently, the management of these residues has become a big challenge for these industries, since they are harmful to the environment but rich in bioactive compounds, such as polyphenols. In recent years, the recovery of phenolic compounds has been proposed as a smart strategy for the valorization of these by-products, from a circular economy perspective. This review aims to provide a comprehensive description of the state of the art of techniques available for the analysis, extraction, and purification of polyphenols from the olive mill and winery residues. Thus, the integration and implementation of these techniques could provide a sustainable solution to the olive oil and winery sectors.

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Section: Conditioning Of Polyphenol Extracts: From Particulate Matter...mentioning

confidence: 99%

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Tapia-Quirós

Montenegro-Landívar

Reig

et al. 2022

Foods

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“…They include pressurized liquid extraction [17], sub and supercritical extraction [18], ultrasound-assisted extraction [19], microwave-assisted extraction [20] and membrane processing [21]. In particular, pressure-driven membrane processes such as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO), as well as integrated systems, have been increasingly studied over the last few years for the extraction, purification, fractionation and concentration of biologically active compounds from different agro-food products and by-products [22][23][24][25]. These processes offer several advantages over competitive methodologies since they can be operated in mild operating temperatures, thus favoring the preservation of nutrients and flavor components; additional advantages include small area-requirement, no use of chemical additives, high separation efficiency and easy scale-up.…”

Section: Introductionmentioning

confidence: 99%

Coupling Ultrafiltration-Based Processes to Concentrate Phenolic Compounds from Aqueous Goji Berry Extracts

2020

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In this work, a membrane-based process for the purification and concentration of antioxidant compounds from aqueous Goji (Lycium barbarum L.) berry extracts was investigated. The aqueous extract was previously clarified with hollow fiber ultrafiltration (UF) membranes in order to remove suspended solids and β-carotene and to produce a clarified extract enriched in phenolic compounds. Then, three UF flat sheet polyamide membranes with a molecular weight cut-off (MWCO) in the range 1000–3500 Da were tested to purify and concentrate phenolic compounds from the clarified extract. The effect of MWCO and transmembrane pressure (TMP) on the performance of selected membranes in terms of productivity and selectivity towards total dissolved solids (TDS), total phenolic compounds (TPC), total carbohydrates (TC) and total antioxidant activity (TAA) was evaluated. Experimental results indicated that the 2500 Da membrane exhibited a lower fouling index, higher cleaning efficiency, lower rejection towards carbohydrates (lower than 30%) and higher rejection towards phenolic compounds (higher than 50%) in comparison to the other investigated membranes. The inclusion of a diafiltration process in the treatment of the clarified extract with this membrane in a spiral-wound configuration improved the concentration of sugar compounds in the permeate stream and increased the purification of phenolic compounds in the retentate fraction.

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“…Retention of these compounds occurs partially due to the interaction with other specific compounds (Meija et al., 2019). Cassano et al., 2019 presented results on the clarification of aqueous extracts from red wine corks through microfiltration using a PVDF hollow fiber membrane and observed a retention of 11.12% of anthocyanins. Meija et al.…”

Section: Resultsmentioning

confidence: 99%

Performance of asymmetric spinel hollow fiber membranes for hibiscus (Hibiscus sabdariffaL.) extract clarification: Flux modeling and extract stability

Paraíso

Santos

Bessa

et al. 2020

J. Food Process. Preserv.

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This work evaluates a filtration process with and without centrifugation through asymmetric spinel hollow membranes for clarification of hibiscus extract. The centrifugation step increased the steady state flux through the membrane in 23.4%. Complete pore blockage was the main fouling mechanism and polysaccharides, proteins and phenolic compounds were mostly responsible for fouling. After sequential membrane filtration, total soluble solids, total solids and L* color coordinate (luminosity) were reduced from 5.53 to 4.03 °Brix, 47,120 to 37,780 mg/L, and 15.69 to 22.03, respectively. Seven individual bioactive compounds were identified in both extract and permeate by ultra performance liquid chromatography-mass spectrometer. The filtrated extract showed greater stability than the feed extract after 20 storage days (reduction of 43.1% in tea cream formation). The sequential centrifugation and filtration through asymmetric spinel hollow membranes can be potentially applied to produce hibiscus ready-to-drink tea with high antioxidant content. Practical applications Membrane separation process is a filtration technique based on the permeation of solute molecules through a semipermeable membrane. The ceramic membrane is widely used for the purification and clarification of food products, but the cost of material is a disadvantage for the use of filtration processes. This work demonstrated the possibility of exploring the use of asymmetric spinel hollow membrane in clarification and increased stability of teas ready for consumption. This membrane presents composition of 25 wt% of dolomite and 75 wt% of alumina, thus presenting high stability, high permeate flows and low-cost ceramic material. This filtration technology membrane can also be combined as a pre-treatment, such as centrifugation, thus improving filtration efficiency and product stability. Finally, the new membrane used was feasible to produce a hibiscus tea ready-to-drink rich in antioxidants. How to cite this article: Paraíso CM, dos Santos SS, Pereira Bessa L, et al. Performance of asymmetric spinel hollow fiber membranes for hibiscus (Hibiscus sabdariffa L.) extract clarification: Flux modeling and extract stability.

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Membrane-Based Clarification and Fractionation of Red Wine Lees Aqueous Extracts

Cited by 19 publications

References 42 publications

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Coupling Ultrafiltration-Based Processes to Concentrate Phenolic Compounds from Aqueous Goji Berry Extracts

Performance of asymmetric spinel hollow fiber membranes for hibiscus (Hibiscus sabdariffaL.) extract clarification: Flux modeling and extract stability

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