Recovery of phenolic compounds from wine lees using green processing: Identifying target molecules and assessing membrane ultrafiltration performance

Mir-Cerdà, Aina; Carretero, Iris; Coves, José Rubén; Pedrouso, Alba; Castro-Barros, Celia María; Alvarino, T.; Cortina, José Luis; Saurina, Javier; Granados, Mercè; Sentellas, Sònia

doi:10.1016/j.scitotenv.2022.159623

Cited by 28 publications

(12 citation statements)

References 35 publications

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“…Beyond ethyl gallate, the methyl derivative has also previously been detected in grape byproducts (seed, stem, and pomace) . However, to date, only one study performed by Mir-Cerdá et al recovered ethyl gallate from winery lees at the average concentration of 2.10 μg/g dw, close to that found in this work (3.85 μg/g dw in freeze-dried samples) (Table ). Nonetheless, to date, no comprehensive information on all alkyl gallates monitored in the present work has been described in the literature (e.g., regarding butyl and lauryl gallates) that limits significantly the scope of the discussion on this issue.…”

Section: Resultssupporting

confidence: 85%

New anti-α-Glucosidase and Antioxidant Ingredients from Winery Byproducts: Contribution of Alkyl Gallates

Domínguez-Perles,

García-Viguera,

Medina

2023

J. Agric. Food Chem.

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Wine-making activity entails the production of solid and semisolid byproducts (grape stems and pomace and wine lees) that negatively impact the environment and industrial sustainability. Their features as sources of bioactive compounds support valorization procedures for functional and healthy ingredients. This work uncovers the quantitative alkyl gallates (gallic acid esters, C1−C12) profile of fresh (freeze-dried) materials and the effect of oven-drying on their stability by UHPLC-ESI-QqQ-MS/MS. The functionality was established concerning DPPH • scavenging and antihyperglycemic power. Wine lees exerted the highest high-free concentration of galloyl derivatives, ethyl gallate being the most abundant ester (3472.62 ng/g dw, on average). About the impact of the stabilization process, although as a general trend, the thermal treatment reduced the concentration, the reduction dimensions depended on the compound/matrix, remaining in valuable concentrations. Concerning radical scavenging, ze-dried stems and pomace displayed the highest capacity (24.11 and 18.46 mg TE/g dw, respectively), being correlated with propyl gallate (r 2 = 0.690), butyl gallate (r 2 = 0.686), and octyl gallate (r 2 = 0.514). These two matrices exerted α-glucosidase inhibitory activity (1.58 and 1.46 units/L) equivalent to that of acarbose (a recognized α-glucosidase inhibitor). The newly described bioactive phytochemicals in winery residues (galloyl esters) and their correlation with functional traits allow for envisioning valorization alternatives.

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Section: Resultssupporting

confidence: 85%

New anti-α-Glucosidase and Antioxidant Ingredients from Winery Byproducts: Contribution of Alkyl Gallates

Domínguez-Perles,

García-Viguera,

Medina

2023

J. Agric. Food Chem.

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“…Regarding the winemaking industry, the use of membrane technology to extract polyphenols from biproducts has been widely studied, including the purification of grape marc phenolic compounds using a sequential UF and NF process [23]. However, the most significant residues come from pomace, grape seeds and lees [24], which represent the residues on which UF and NF processes can be implemented most effectively and which have been intensively studied by other authors [25][26][27][28]. Due to the nature of wine lees, they do not require the use of any solvents to be directly suitable for membrane filtration, thereby resulting in lower costs for industries.…”

Section: Membrane Technology For Polyphenol Extractionmentioning

confidence: 99%

Experimental Study of a Sequential Membrane Process of Ultrafiltration and Nanofiltration for Efficient Polyphenol Extraction from Wine Lees

Reig-Valor,

Rozas-Martínez,

López-Borrell

et al. 2024

Membranes

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The wine industry is a sector of great importance in the Spanish economy, contributing substantial annual revenues. However, one challenge facing the industry is the amount of waste generated, reaching millions of tons annually. These residues consist of organic matter of industrial interest, such as polyphenols. These substances are characterised by their excellent antioxidant properties, making them ideal for use in the food, cosmetic, and pharmaceutical industries. Modern techniques, such as membrane technology, are explored for their extraction based on separating compounds according to size. This work studies a sequential filtration process using ultrafiltration (UF) and nanofiltration (NF) membranes at different operating conditions (2 bar and 9.5 bar for UF and NF, respectively, at 20 °C) to extract polyphenols from wine lees. The results show a total polyphenols rejection rate for each process of 54% for UF and 90% for NF. Pore blocking models have been studied for the UF process and an intermediate pore blocking of the membrane upon wine lees filtration has been identified. A mathematical model that justifies the behavior of a polymeric NF membrane with the filtration of pre-treated vinasse residues has been validated. This study shows a viable process for extracting polyphenols from wine lees with sequential membrane technology.

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“…1 and 2): sample number (sample depth, m): 2.1(0-1,5), 2.2 (1,5-3,0), 2.3 (3,0-4,0), 2.4 (4,0-6,0), 2.5 (6,0-7,5), 2.6 (7,5-9,0), 2.7 (9,0-12,0), 2.8 (12,0-15,0), 2.9 (15,0-18,0), 2.10 (18,0-21,0), 2.11 (21,0-24,0), 2.12 (24,0-27,0), 2. спектре ([M-H] ae 163 m/z) -транс-п-кумаровая кислота и её цис-изомер [22].…”

Section: результаты и обсуждениеunclassified

Comprehensive study of the content of biologically active substances in the destruction products of bark-wood waste generated during long-term storage

Shirshova,

Beshley,

Ufimtsev

2023

TaAE

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The study of the content of biologically active substances in the samples of the bark-wood waste destruction products (BWW) was continued. BWW were taken at a depth of 1 to 27 meters of the bark dump of OJSC Syktyvkar LDK, located in the Forestry microdistrict of Syktyvkar. The hexane-soluble substances content is in ranges from 0.78 to 1.89% of the dry mass of BWW. The minimum content was found in the first (0.24%) and last samples (0.21%) at the minimum and maximum depth, the maximum – in samples at a depth of 3 to 9 m (1.66–1.89%). The variation of the hexane extract (HE) content in BWW’s dry mass depending on the depth of occurrence is not clear. The HE content in the dry ethyl acetate extract is mainly within 50%. The minimum content was found in the first sample at a depth of up to 1.5 m (34.9%), the maximum in the last sample at a depth of 27.0 m, where it reaches 66% of the dry weight of the ethyl acetate extract. The analysis of the obtained hexane extracts by thin-layer chromatography showed that the HE contains substances with a mobility coefficient of 0.61, which coincide with dihydroquercetin and some phenolic acids previously detected in ethyl acetate extracts. Six phenolic compounds were detected by high-performance liquid chromatography in hexane extracts. Protocatechic acid, vanillic acid, trans-p-coumaric acid and its cis isomer were identified by chromatographic and spectral characteristics.

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Recovery of phenolic compounds from wine lees using green processing: Identifying target molecules and assessing membrane ultrafiltration performance

Cited by 28 publications

References 35 publications

New anti-α-Glucosidase and Antioxidant Ingredients from Winery Byproducts: Contribution of Alkyl Gallates

New anti-α-Glucosidase and Antioxidant Ingredients from Winery Byproducts: Contribution of Alkyl Gallates

Experimental Study of a Sequential Membrane Process of Ultrafiltration and Nanofiltration for Efficient Polyphenol Extraction from Wine Lees

Comprehensive study of the content of biologically active substances in the destruction products of bark-wood waste generated during long-term storage

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