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Abboud S, Ouni A, Ben Abdallah RA, Bchir A, Ben Abdelwaheb S, Tlili D, Dbara S. Unraveling the effect of phenolic extract derived from olive mill solid wastes on agro-physiological and biochemical traits of pomegranate and its associated rhizospheric soil properties. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134234. [PMID: 38608584 DOI: 10.1016/j.jhazmat.2024.134234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 04/14/2024]
Abstract
Agricultural waste management poses a significant challenge in circular economy strategies. Olive mill wastes (OMW) contain valuable biomolecules, especially phenolic compounds, with significant agricultural potential. Our study evaluate the effects of phenolic extract (PE) derived from olive mill solid wastes (OMSW) on pomegranate agro-physiological and biochemical responses, as well as soil-related attributes. Pomegranate plants were treated with PE at doses of 100 ppm and 200 ppm via foliar spray (L100 and L200) and soil application (S100 and S200). Results showed increased biomass with PE treatments, especially with soil application (S100 and S200). Proline and soluble sugar accumulation in leaves suggested plant adaptation to PE with low-level stress. Additionally, PE application reduced malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents. Higher doses of PE (S200) significantly improved net photosynthesis (Pn), transpiration rate (E), water use efficiency (WUEi), and photosynthetic efficiency (fv/fm and PIabs). Furthermore, PE treatments enhanced levels of chlorophylls, carotenoids, polyphenols, flavonoids, and antioxidant activity. Soil application of PE also increased soil enzyme activities and microbial population. Our findings suggest the beneficial impact of PE application on pomegranate agro-physiological responses, laying the groundwork for further research across various plant species and soil types to introduce nutrient-enriched PE as an eco-friendly biostimulant.
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Affiliation(s)
- Samia Abboud
- Regional Research Centre on Horticulture and Organic Agriculture, IRESA-University of Sousse, Chott mariem-Sousse, Tunisia; LR16IO02 Laboratory of sustainability of olive and fruit growing in semi-arid and arid environments, Olive Tree Institute, University of Sfax, Tunisia.
| | - Azhar Ouni
- Regional Research Centre on Horticulture and Organic Agriculture, IRESA-University of Sousse, Chott mariem-Sousse, Tunisia
| | - Rania Aydi Ben Abdallah
- LR21AGR03-Production and Protection for a Sustainable Horticulture (2PHD), Regional Research Centre on Horticulture and Organic Agriculture, IRESA-University of Sousse, Chott mariem-Sousse, Tunisia
| | | | - Sahar Ben Abdelwaheb
- Regional Research Centre on Horticulture and Organic Agriculture, IRESA-University of Sousse, Chott mariem-Sousse, Tunisia
| | - Darine Tlili
- Regional Research Centre on Horticulture and Organic Agriculture, IRESA-University of Sousse, Chott mariem-Sousse, Tunisia
| | - Soumaya Dbara
- Regional Research Centre on Horticulture and Organic Agriculture, IRESA-University of Sousse, Chott mariem-Sousse, Tunisia; LR16IO02 Laboratory of sustainability of olive and fruit growing in semi-arid and arid environments, Olive Tree Institute, University of Sfax, Tunisia
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Zbeeb H, Baldini F, Zeaiter L, Vergani L. The Anti-Inflammatory Potential of an Ethanolic Extract from Sarcopoterium spinosum Fruits for Protection and/or Counteraction against Oxidative Stress in Dysfunctional Endothelial Cells. Int J Mol Sci 2024; 25:1601. [PMID: 38338880 PMCID: PMC10855414 DOI: 10.3390/ijms25031601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Plants and plant extracts are a relevant source of bioactive compounds widely employed as functional foods. In the Mediterranean area, the shrub Sarcopoterium spinosum is traditionally used as an herbal medicine for weight loss and a diabetes treatment. Inflammation is a protective mechanism involved in the development of many pathological conditions, including cardiovascular diseases. The present study aimed to investigate in vitro the antioxidant and cytoprotective properties of an ethanolic extract from S. spinosum fruits (SEE) in a cellular model of endothelium dysfunction. Corilagin and quercetin are two polyphenols abundant in SEE and were tested for comparison. The exposure of HECV cells for 24 h to 30 µM hydrogen peroxide (H2O2) lead to an oxidative stress condition. When HECV cells were treated with 10 µg/mL of SEE or single compounds after or before the oxidative insult, the results showed their ability to (i) decrease the reactive oxygen species (ROS) production quantified using fluorometric analysis and the lipid peroxidation measured with a spectrophotometric assay; (ii) rescue both the glutathione reduced to oxidized (GSH/GSSG) ratio and nitric oxide impair and the protein denaturation; and (iii) accelerate the wound repair measured using a T-scratch assay. Taken together, our findings indicate that the ethanolic extract from S. spinosum fruits could be a potential candidate for nutraceutical application.
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Affiliation(s)
- Hawraa Zbeeb
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, Italy
| | - Francesca Baldini
- Nanoscopy and NIC@IIT, Istituto Italiano di Tecnologia (IIT), 16152 Genova, Italy
| | - Lama Zeaiter
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, Italy
- Nanoscopy and NIC@IIT, Istituto Italiano di Tecnologia (IIT), 16152 Genova, Italy
| | - Laura Vergani
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, Italy
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Li H, Guo X, Zhu X, Chen Y, Zhang L, Lu J, Qian Q. Effect of ultrahigh pressure processing (UHP) on physicochemical properties, antioxidant activity and anti-inflammatory activity of insoluble dietary fiber from Pholiota nameko. Food Sci Biotechnol 2024; 33:453-464. [PMID: 38222903 PMCID: PMC10786768 DOI: 10.1007/s10068-023-01342-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/27/2023] [Accepted: 05/14/2023] [Indexed: 01/16/2024] Open
Abstract
The aim of this study was to evaluate the effect of ultrahigh pressure processing (UHP) of 200, 300, 400, 500, 600 and 700 MPa for 20, 40 and 30 min on physicochemical and bioactive properties of the insoluble dietary fiber Pholiota nameko (PN-IDF). The results revealed that UHP were capable of decreasing the particle size of PN-IDF and binding phenolic content. Moreover, UHP technique had an improving effect on the bioaccessible phenolic content, the water-holding capacity, the oil-holding capacity and the nitrite ion adsorption capacity. Further, UHP technique presented a promoting effect on the antioxidant activity by scavenging ABTS or DPPH free radicals and increasing reducing power, and the anti-inflammatory activity by inhibiting carrageenan-induced paw edema on PN-IDF. Overall, this study well proved that UHP technology could improve the physicochemical and functional quality of PN-IDF, which could be used as a promising green technique for functional food ingredients processing.
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Affiliation(s)
- Haiping Li
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
| | - Xinqi Guo
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
| | - Xun Zhu
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
| | - Yina Chen
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
| | - Limin Zhang
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
| | - Jiaqi Lu
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
| | - Qiuting Qian
- Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, 300134 People’s Republic of China
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Albini A, Albini F, Corradino P, Dugo L, Calabrone L, Noonan DM. From antiquity to contemporary times: how olive oil by-products and waste water can contribute to health. Front Nutr 2023; 10:1254947. [PMID: 37908306 PMCID: PMC10615083 DOI: 10.3389/fnut.2023.1254947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/28/2023] [Indexed: 11/02/2023] Open
Abstract
Since antiquity, numerous advantages of olive oil and its by-products have been recognized in various domains, including cooking, skincare, and healthcare. Extra virgin olive oil is a crucial component of the Mediterranean diet; several of its compounds exert antioxidant, anti-proliferative, anti-angiogenic and pro-apoptotic effects against a variety of cancers, and also affect cellular metabolism, targeting cancer cells through their metabolic derangements. Numerous olive tree parts, including leaves, can contribute metabolites useful to human health. Olive mill waste water (OMWW), a dark and pungent liquid residue produced in vast amounts during olive oil extraction, contains high organic matter concentrations that may seriously contaminate the soil and surrounding waters if not managed properly. However, OMWW is a rich source of phytochemicals with various health benefits. In ancient Rome, the farmers would employ what was known as amurca, a mulch-like by-product of olive oil production, for many purposes and applications. Several studies have investigated anti-angiogenic and chemopreventive activities of OMWW extracts. The most prevalent polyphenol in OMWW extracts is hydroxytyrosol (HT). Verbascoside and oleuperin are also abundant. We assessed the impact of one such extract, A009, on endothelial cells (HUVEC) and cancer cells. A009 was anti-angiogenic in several in vitro assays (growth, migration, adhesion) and inhibited angiogenesis in vivo, outperforming HT alone. A009 inhibited cells from several tumors in vitro and in vivo and showed potential cardioprotective effects mitigating cardiotoxicity induced by chemotherapy drugs, commonly used in cancer treatment, and reducing up-regulation of pro-inflammatory markers in cardiomyocytes. Extracts from OMWW and other olive by-products have been evaluated for biological activities by various international research teams. The results obtained make them promising candidates for further development as nutraceutical and cosmeceutical agents or dietary supplement, especially in cancer prevention or even in co-treatments with anti-cancer drugs. Furthermore, their potential to offer cardioprotective benefits opens up avenues for application in the field of cardio-oncology.
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Affiliation(s)
- Adriana Albini
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), European Institute of Oncology IEO, Milan, Italy
| | - Francesca Albini
- Royal Society for the Encouragement of Arts, Manufactures and Commerce, London, United Kingdom
| | - Paola Corradino
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), European Institute of Oncology IEO, Milan, Italy
| | - Laura Dugo
- Department of Science and Technology for Sustainable Development and One Health, University Campus Bio-Medico of Rome, Roma, Italy
| | | | - Douglas M. Noonan
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
- IRCCS MultiMedica, Milan, Italy
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Cuffaro D, Bertolini A, Bertini S, Ricci C, Cascone MG, Danti S, Saba A, Macchia M, Digiacomo M. Olive Mill Wastewater as Source of Polyphenols with Nutraceutical Properties. Nutrients 2023; 15:3746. [PMID: 37686778 PMCID: PMC10489820 DOI: 10.3390/nu15173746] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Agrifood waste products are often considered rich sources of bioactive compounds that can be conveniently recovered. Due to these peculiar characteristics, the study of these waste products is attracting great interest in nutraceutical research. Olive mill wastewaters (OMWWs) are generated by extra virgin olive oil (EVOO) production, and they pose environmental challenges due to their disposal. This study aimed to characterize the polyphenolic profile and to evaluate the nutraceutical properties of OMWW extracts from two Tuscan olive cultivars, Leccino (CL) and Frantoio (CF), collected during different time points in EVOO production. METHOD After a liquid-liquid extraction, the HPLC and LC-MS/MS analysis of OMWW extracts confirmed the presence of 18 polyphenolic compounds. RESULTS The polyphenol composition varied between the cultivars and during maturation stages. Notably, oleacein was detected at remarkably high levels in CL1 and CF1 extracts (314.628 ± 19.535 and 227.273 ± 3.974 μg/mg, respectively). All samples demonstrated scavenging effects on free radicals (DPPH and ABTS assays) and an anti-inflammatory potential by inhibiting cyclooxygenase (COX) enzymes. CONCLUSIONS This study highlights the nutraceutical potential of OMWW extracts, emphasizing their antioxidant, antiradical, and anti-inflammatory activities. The results demonstrate the influence of olive cultivar, maturation stage, and extraction process on the polyphenolic composition and the bioactivity of OMWW extracts. These findings support a more profitable reuse of OMWW as an innovative, renewable, and low-cost source of dietary polyphenols with potential applications as functional ingredients in the development of dietary supplements, as well as in the pharmaceutical and cosmetics industries.
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Affiliation(s)
- Doretta Cuffaro
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
| | - Andrea Bertolini
- Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, 56126 Pisa, Italy;
| | - Simone Bertini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Claudio Ricci
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (C.R.); (M.G.C.); (S.D.)
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (C.R.); (M.G.C.); (S.D.)
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (C.R.); (M.G.C.); (S.D.)
| | - Alessandro Saba
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
- Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, 56126 Pisa, Italy;
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
| | - Maria Digiacomo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
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Foti P, Conti-Nibali S, Randazzo CL, Reina S, Romeo FV, Caggia C, De Pinto V. Protective Effect of Treated Olive Mill Wastewater on Target Bacteria and Mitochondrial Voltage-Dependent Anion-Selective Channel 1. Antioxidants (Basel) 2023; 12:antiox12020322. [PMID: 36829881 PMCID: PMC9951878 DOI: 10.3390/antiox12020322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Olive mill wastewater, a by-product of the olive oil industry, represents an important resource, rich in bioactive compounds with antioxidant activity. In this study, two strategies to concentrate the bioactive components were used: the tangential membrane filtration (ultrafiltration and reverse osmosis) and the selective resin extraction. The concentrates were evaluated for physico-chemical characteristics and antioxidant activity. Furthermore, the antimicrobial activity and the effect on the mitochondrial voltage-dependent anion selective channel 1 were evaluated. The chemical results highlighted that the highest concentration of hydroxytyrosol (as 7204 mg/L) was revealed in the sample obtained by inverse osmosis while the highest concentration of oleuropein (10005 mg/L) was detected in the sample obtained by resin extraction. The latter sample exhibited the highest antimicrobial effects against Listeria monocytogenes, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. Both samples exhibited a high impact on the electrophysiological parameters of VDAC1 activity. These results showed that both valorization techniques, which can be reproduced at industrial scale, provided phenolic concentrates with antioxidant and antimicrobial activity useful for different future perspectives.
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Affiliation(s)
- Paola Foti
- Dipartimento di Agricoltura, Alimentazione e Ambiente—Di3A, Università degli Studi di Catania, 95124 Catania, Italy
| | - Stefano Conti-Nibali
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy
| | - Cinzia L. Randazzo
- Dipartimento di Agricoltura, Alimentazione e Ambiente—Di3A, Università degli Studi di Catania, 95124 Catania, Italy
- ProBioEtna srl, Spin Off University of Catania, 95124 Catania, Italy
- CERNUT, Interdepartmental Research Centre in Nutraceuteuticals and Health Products, University of Catania, 95125 Catania, Italy
| | - Simona Reina
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy
- We.MitoBiotech S.R.L., 95129 Catania, Italy
| | - Flora V. Romeo
- Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria (CREA), Centro di Ricerca Olivicoltura, Frutticoltura e Agrumicoltura, 95024 Acireale, Italy
| | - Cinzia Caggia
- Dipartimento di Agricoltura, Alimentazione e Ambiente—Di3A, Università degli Studi di Catania, 95124 Catania, Italy
- ProBioEtna srl, Spin Off University of Catania, 95124 Catania, Italy
- CERNUT, Interdepartmental Research Centre in Nutraceuteuticals and Health Products, University of Catania, 95125 Catania, Italy
- Correspondence:
| | - Vito De Pinto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy
- CERNUT, Interdepartmental Research Centre in Nutraceuteuticals and Health Products, University of Catania, 95125 Catania, Italy
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Foti P, Occhipinti PS, Russo N, Scilimati A, Miciaccia M, Caggia C, Perrone MG, Randazzo CL, Romeo FV. Olive Mill Wastewater Fermented with Microbial Pools as a New Potential Functional Beverage. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020646. [PMID: 36677704 PMCID: PMC9866608 DOI: 10.3390/molecules28020646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/01/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Abstract
Olive mill wastewater (OMWW) represents a by-product but also a source of biologically active compounds, and their recycling is a relevant strategy to recover income and to reduce environmental impact. The objective of the present study was to obtain a new functional beverage with a health-promoting effect starting from OMWW. Fresh OMWW were pre-treated through filtration and/or microfiltration and subjected to fermentation using strains belonging to Lactiplantibacillus plantarum, Candida boidinii and Wickerhamomyces anomalus. During fermentation, phenolic content and hydroxytyrosol were monitored. Moreover, the biological assay of microfiltered fermented OMWW was detected versus tumor cell lines and as anti-inflammatory activity. The results showed that in microfiltered OMWW, fermentation was successfully conducted, with the lowest pH values reached after 21 days. In addition, in all fermented samples, an increase in phenol and organic acid contents was detected. Particularly, in samples fermented with L. plantarum and C. boidinii in single and combined cultures, the concentration of hydroxytyrosol reached values of 925.6, 902.5 and 903.5 mg/L, respectively. Moreover, biological assays highlighted that fermentation determines an increase in the antioxidant and anti-inflammatory activity of OMWW. Lastly, an increment in the active permeability on Caco-2 cell line was also revealed. In conclusion, results of the present study confirmed that the process applied here represents an effective strategy to achieve a new functional beverage.
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Affiliation(s)
- Paola Foti
- Department of Agriculture, Food and Environment (Di3 A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
| | - Paride S. Occhipinti
- Department of Agriculture, Food and Environment (Di3 A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
| | - Nunziatina Russo
- Department of Agriculture, Food and Environment (Di3 A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
- ProBioEtna srl, Spin-Off of University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
| | - Antonio Scilimati
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari “Aldo Moro”, Via E. Orabona 4, 70125 Bari, Italy
| | - Morena Miciaccia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari “Aldo Moro”, Via E. Orabona 4, 70125 Bari, Italy
| | - Cinzia Caggia
- Department of Agriculture, Food and Environment (Di3 A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
- ProBioEtna srl, Spin-Off of University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
- CERNUT (Interdepartmental Research Centre in Nutraceuticals and Health Products), University of Catania, Via le A. Doria 6, 95125 Catania, Italy
- Correspondence:
| | - Maria Grazia Perrone
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari “Aldo Moro”, Via E. Orabona 4, 70125 Bari, Italy
| | - Cinzia L. Randazzo
- Department of Agriculture, Food and Environment (Di3 A), University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
- ProBioEtna srl, Spin-Off of University of Catania, Via Santa Sofia 100, 95123 Catania, Italy
- CERNUT (Interdepartmental Research Centre in Nutraceuticals and Health Products), University of Catania, Via le A. Doria 6, 95125 Catania, Italy
| | - Flora V. Romeo
- Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria (CREA), Centro di Ricerca Olivico-Tura, Frutticoltura e Agrumicoltura, Corso Savoia 190, 95024 Acireale, Italy
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8
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Oleszek M, Kowalska I, Bertuzzi T, Oleszek W. Phytochemicals Derived from Agricultural Residues and Their Valuable Properties and Applications. Molecules 2023; 28:342. [PMID: 36615534 PMCID: PMC9823944 DOI: 10.3390/molecules28010342] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/21/2022] [Accepted: 12/25/2022] [Indexed: 01/04/2023] Open
Abstract
Billions of tons of agro-industrial residues are produced worldwide. This is associated with the risk of pollution as well as management and economic problems. Simultaneously, non-edible portions of many crops are rich in bioactive compounds with valuable properties. For this reason, developing various methods for utilizing agro-industrial residues as a source of high-value by-products is very important. The main objective of the paper is a review of the newest studies on biologically active compounds included in non-edible parts of crops with the highest amount of waste generated annually in the world. The review also provides the newest data on the chemical and biological properties, as well as the potential application of phytochemicals from such waste. The review shows that, in 2020, there were above 6 billion tonnes of residues only from the most popular crops. The greatest amount is generated during sugar, oil, and flour production. All described residues contain valuable phytochemicals that exhibit antioxidant, antimicrobial and very often anti-cancer activity. Many studies show interesting applications, mainly in pharmaceuticals and food production, but also in agriculture and wastewater remediation, as well as metal and steel industries.
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Affiliation(s)
- Marta Oleszek
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Puławy, Poland
| | - Iwona Kowalska
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Puławy, Poland
| | - Terenzio Bertuzzi
- DIANA, Department of Animal Science, Food and Nutrition, Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, Via E. Parmense, 84, 29122 Piacenza, Italy
| | - Wiesław Oleszek
- Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute, 24-100 Puławy, Poland
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9
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Agri-Food By-Products in Cancer: New Targets and Strategies. Cancers (Basel) 2022; 14:cancers14225517. [PMID: 36428610 PMCID: PMC9688227 DOI: 10.3390/cancers14225517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/27/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
The globalization and the changes in consumer lifestyles are forcing us to face a deep transformation in food demand and in the organization of the entire food production system. In this new era, the food-loss and food-waste security nexus is relevant in the global debate and avoiding unsustainable waste in agri-food systems as well as the supply chain is a big challenge. "Food waste" is useful for the recovery of its valuable components, thus it can assume the connotation of a "food by-product". Sustainable utilization of agri-food waste by-products provides a great opportunity. Increasing evidence shows that agri-food by-products are a source of different bioactive molecules that lower the inflammatory state and, hence, the aggressiveness of several proliferative diseases. This review aims to summarize the effects of agri-food by-products derivatives, already recognized as promising therapeutics in human diseases, including different cancer types, such as breast, prostate, and colorectal cancer. Here, we examine products modulating or interfering in the signaling mediated by the epidermal growth factor receptor.
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10
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Olive Pomace Phenolic Compounds: From an Agro-Industrial By-Product to a Promising Ocular Surface Protection for Dry Eye Disease. J Clin Med 2022; 11:jcm11164703. [PMID: 36012942 PMCID: PMC9409789 DOI: 10.3390/jcm11164703] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/29/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Dry eye (DED) is a prevalent disease with immune-mediated inflammation as the principal pathophysiological etiology. Olive pomace, the major by-product of the olive oil industry, is rich in high-value polyphenols. Their anti-inflammatory and immunomodulatory activities were determined on human CD4+ T cells (hTCD4+) and in a DED animal model. The viability of hTCD4+ cells isolated from peripheral blood and activated with phytohemagglutinin-M was evaluated after treatment for 48 h with an olive pomace extract (OPT3, 0.10–0.40 mg/mL) and its major compound, hydroxytyrosol (25–100 μM). Regarding the DED animal model, 100 μM hydroxytyrosol, 0.20 mg/mL OPT3, or vehicle (borate buffer) were topically administered to 14 days-desiccating stress-exposed (constant airflow/scopolamine administration) C57BL/6 mice. Tear volume, corneal fluorescein staining (CFS), CD4+, and CD8+ T cell count in lymph nodes (flow cytometry), and IP-10 and TNF-α gene expression (qRT-PCR) in the cornea, conjunctiva, and lacrimal glands were evaluated. OPT3 (0.2–0.4 mg/mL) and hydroxytyrosol (100 μM) significantly reduced hTCD4+ proliferation. In mice, both treatments reduced lacrimal gland IP-10 gene expression. OPT3 also decreased CFS, and conjunctival IP-10 and corneal TNF-α gene expression. In lymph nodes, hydroxytyrosol reduced CD3+, OPT3, and CD8+ count. Thus, a high-value application as a promising DED protection was proposed for olive pomace.
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Genotoxic Assessment of Nutraceuticals Obtained from Agricultural Biowaste: Where Do We " AMES"? Antioxidants (Basel) 2022; 11:antiox11061197. [PMID: 35740094 PMCID: PMC9230180 DOI: 10.3390/antiox11061197] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 01/27/2023] Open
Abstract
Several pharmaceutical companies are nowadays considering the use of agri-food waste as alternative raw material for the extraction of bioactive compounds to include in nutraceuticals and food supplements. This recycling activity is encountering the support of authorities, which are alarmed by air, soil and water pollution generated by agricultural waste disposal. Waste reuse has several economic advantages: (i) its low cost; (ii) its abundance; (iii) the high content of bioactive molecule (antioxidants, minerals, fibers, fatty acids); as well as (iv) the financial support received by governments eager to promote eco-compatible and pollution-reducing practices. While nutraceuticals produced from biowaste are becoming popular, products that have been risk-assessed in terms of safety are quite rare. This despite waste biomass, in virtue of its chemical complexity, could, in many cases, mine the overall safety of the final nutraceutical product. In this review, we summarize the scientific results published on genotoxicity risk-assessment of bioactive compounds extracted from agricultural waste. The review depicts a scenario where the risk-assessment of biowaste derived products is still scarcely diffuse, but when available, it confirms the safety of these products, and lets us envisage their future inclusion in the list of botanicals allowed for formulation intended for human consumption.
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Tawfik A, Ismail S, Elsayed M, Qyyum MA, Rehan M. Sustainable microalgal biomass valorization to bioenergy: Key challenges and future perspectives. CHEMOSPHERE 2022; 296:133812. [PMID: 35149012 DOI: 10.1016/j.chemosphere.2022.133812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/19/2022] [Accepted: 01/28/2022] [Indexed: 05/16/2023]
Abstract
The global trend is shifting toward circular economy systems. It is a sustainable environmental approach that sustains economic growth from the use of resources while minimizing environmental impacts. The multiple industrial use of microalgal biomass has received great attention due to its high content of essential nutrients and elements. Nevertheless, low biomass productivity, unbalanced carbon to nitrogen (C/N) ratio, resistant cellular constituents, and the high cost of microalgal harvesting represent the major obstacles for valorization of algal biomass. In recent years, microalgae biomass has been a candidate as a potential feedstock for different bioenergy generation processes with simultaneous treating wastewater and CO2 capture. An overview of the appealing features and needed advancements is urgently essential for microalgae-derived bioenergy generation. The present review provides a timely outlook and evaluation of biomethane production from microalgal biomass and related challenges. Moreover, the biogas recovery potential from microalgal biomass through different pretreatments and synergistic anaerobic co-digestion (AcoD) with other biowastes are evaluated. In addition, the removal of micropollutants and heavy metals by microalgal cells via adsorption and bioaccumulation in their biomass is discussed. Herein, a comprehensive review is presented about a successive high-throughput for anaerobic digestion (AD) of the microalgal biomass in order to achieve for sustainable energy source. Lastly, the valorization of the digestate from AD of microalgae for agricultural reuse is highlighted.
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Affiliation(s)
- Ahmed Tawfik
- Water Pollution Research Department, National Research Centre, Giza, 12622, Egypt.
| | - Sherif Ismail
- Environmental Engineering Department, Zagazig University, Zagazig, 44519, Egypt
| | - Mahdy Elsayed
- Agricultural Engineering Department, Faculty of Agriculture, Cairo University, 12613, Giza, Egypt
| | - Muhammad Abdul Qyyum
- Department of Petroleum & Chemical Engineering, Sultan Qaboos University, Muscat, Oman.
| | - Mohammad Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
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Zahi MR, Zam W, El Hattab M. State of knowledge on chemical, biological and nutritional properties of olive mill wastewater. Food Chem 2022; 381:132238. [PMID: 35114626 DOI: 10.1016/j.foodchem.2022.132238] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 12/19/2022]
Abstract
The Mediterranean olive oil industries are producing annually a massive quantity of olive mill wastewater (OMWW). Unfortunately, the OMWW is released arbitrarily in the nature without any pretreatment. Thus, it exhibits a high toxicity against the whole natural ecosystem including, microorganisms, plants and animals. In order to eliminate or reduce its pollution, OMWW must be properly treated prior to its release in the nature. In this regard, different treatment methods have been developed by researchers, but some of them were costly and others were inappropriate. Thus, more efforts should be made to save the nature from this pollutant. In the light of that, the current work summaries the state of knowledge regarding the OMWW from a chemical, biological, nutraceutical point of view, and the treatment methods that were used to eliminate its risk of pollution.
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Affiliation(s)
- Mohamed Reda Zahi
- Laboratory of Natural Products Chemistry and Biomolecules, Faculty of Sciences, Saad Dahlab University of Blida, 1- POB 270, Soumaa Road, Blida, Algeria.
| | - Wissam Zam
- Department of Analytical and Food Chemistry, Faculty of Pharmacy, Tartous University, Syria
| | - Mohamed El Hattab
- Laboratory of Natural Products Chemistry and Biomolecules, Faculty of Sciences, Saad Dahlab University of Blida, 1- POB 270, Soumaa Road, Blida, Algeria
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Peeters K, Miklavčič Višnjevec A, Esakkimuthu ES, Schwarzkopf M, Tavzes Č. The Valorisation of Olive Mill Wastewater from Slovenian Istria by Fe 3O 4 Particles to Recover Polyphenolic Compounds for the Chemical Specialties Sector. Molecules 2021; 26:6946. [PMID: 34834035 PMCID: PMC8622678 DOI: 10.3390/molecules26226946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 11/16/2022] Open
Abstract
Olive oil production using three-phase decanter systems creates olive oil and two by-products: olive mill wastewater (OMWW) and pomace. These by-products contain the highest share of polyphenolic compounds that are known to be associated with beneficial effects on human health. Therefore, they are an attractive source of phenolic compounds for further industrial use in the cosmetic, pharmaceutical and food industries. The use of these phenolics is limited due to difficulties in recovery, high reactivity, complexity of the OMWW matrix and different physiochemical properties of phenolic compounds. This research, focused on OMWW, was performed in two phases. First, different polyphenol extraction methods were compared to obtain the method that yields the highest polyphenol concentration. Twenty-five phenolic compounds and their isomers were determined. Acidifying OMWW, followed by five minutes of ultrasonication, resulted in the highest measured polyphenol content of 27 mg/L. Second, the collection of polyphenolic compounds from OMWW via adsorption on unmodified iron (II, III) oxide particles was investigated. Although low yields were obtained for removed polyphenolic compounds in one removal cycle, the process has a high capability to be repeated.
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Affiliation(s)
- Kelly Peeters
- InnoRenew CoE, Livade 6, 6310 Izola, Slovenia; (E.S.E.); (M.S.); (Č.T.)
- Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia
| | - Ana Miklavčič Višnjevec
- Faculty of Mathematics, University of Primorska, Natural Sciences and Information Technologies, Glagoljaška 8, 6000 Koper, Slovenia;
| | | | - Matthew Schwarzkopf
- InnoRenew CoE, Livade 6, 6310 Izola, Slovenia; (E.S.E.); (M.S.); (Č.T.)
- Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia
| | - Črtomir Tavzes
- InnoRenew CoE, Livade 6, 6310 Izola, Slovenia; (E.S.E.); (M.S.); (Č.T.)
- Andrej Marušič Institute, University of Primorska, Muzejski trg 2, 6000 Koper, Slovenia
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Olive Pomace Phenolic Compounds Stability and Safety Evaluation: From Raw Material to Future Ophthalmic Applications. Molecules 2021; 26:molecules26196002. [PMID: 34641545 PMCID: PMC8512844 DOI: 10.3390/molecules26196002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 11/17/2022] Open
Abstract
Nowadays, increasing interest in olive pomace (OP) valorization aims to improve olive's industry sustainability. Interestingly, several studies propose a high-value application for OP extracts containing its main phenolic compounds, hydroxytyrosol and oleuropein, as therapy for ocular surface diseases. In this work, the stability and accessibility of OP total phenolic and flavonoid content, main representative compounds, and antioxidant activity were assessed under different pretreatment conditions. Among them, lyophilization and supercritical CO2 extraction were found to increase significantly most responses measured in the produced extracts. Two selected extracts (CONV and OPT3) were obtained by different techniques (conventional and pressurized liquid extraction); Their aqueous solutions were characterized by HPLC-DAD-MS/MS. Additionally, their safety and stability were evaluated according to EMA requirements towards their approval as ophthalmic products: their genotoxic effect on ocular surface cells and their 6-months storage stability at 4 different temperature/moisture conditions (CPMP/ICH/2736/99), together with pure hydroxytyrosol and oleuropein solutions. The concentration of hydroxytyrosol and oleuropein in pure or extract solutions was tracked, and possible degradation products were putatively identified by HPLC-DAD-MS/MS. Hydroxytyrosol and oleuropein had different stability as standard or extract solutions, with oleuropein also showing different degradation profile. All compounds/extracts were safe for ophthalmic use at the concentrations tested.
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Katsinas N, Rodríguez-Rojo S, Enríquez-de-Salamanca A. Olive Pomace Phenolic Compounds and Extracts Can Inhibit Inflammatory- and Oxidative-Related Diseases of Human Ocular Surface Epithelium. Antioxidants (Basel) 2021; 10:antiox10071150. [PMID: 34356385 PMCID: PMC8301198 DOI: 10.3390/antiox10071150] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/07/2021] [Accepted: 07/17/2021] [Indexed: 11/16/2022] Open
Abstract
Oxidative- and inflammatory-related ocular surface diseases have high prevalence and are an emerging issue in ophthalmology. Olive pomace (OP) is the olive oil's industry main by-product, and is potentially environmentally hazardous. Nevertheless, it contains phenolic compounds with important bioactivities, like oleuropein (OL) and hydroxytyrosol (HT). The antioxidant and anti-inflammatory effects of four OP extracts (CONV, OPT(1-3)), pure OL and HT, and mixtures thereof were screened on human corneal (HCE) and conjunctival epithelial (IM-ConjEpi) cells. CONV was conventionally extracted, while OPT(1-3) were produced by pressurized liquid extraction. Thanks to their improved activity, CONV and OPT3 (HT-enriched) were selected for dose-dependent studies. Cells were stimulated with tumor necrosis factor-α or ultraviolet-B radiation, measuring interleukin (IL)-1β, IL-6, IL-8, and IL-17A as well as interferon γ-induced protein [IP]-10 secretion or intracellular ROS production, respectively. On HCE, both extracts and HT inhibited the secretion of most measured ILs, demonstrating a strong anti-inflammatory effect; while in IM-ConjEpi, all samples decreased IP-10 secretion. Moreover, HT, OL, and both extracts showed strong dose-dependent antioxidant activity in both cell lines. Compared with CONV, OPT3 was active at lower concentrations, demonstrating that intensified extraction techniques are selective towards targeted biomarkers. Hence, a high-value application as potential ocular surface therapy was proposed for the OP valorization.
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Affiliation(s)
- Nikolaos Katsinas
- Institute of Applied Ophthalmobiology (IOBA), Campus Miguel Delibes, University of Valladolid (UVa), Paseo de Belén 17, 47011 Valladolid, Spain;
- High Pressure Processes Group, Department of Chemical Engineering and Environmental Technology, School of Engineering, University of Valladolid (UVa), Dr. Mergelina str., 47011 Valladolid, Spain;
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain
| | - Soraya Rodríguez-Rojo
- High Pressure Processes Group, Department of Chemical Engineering and Environmental Technology, School of Engineering, University of Valladolid (UVa), Dr. Mergelina str., 47011 Valladolid, Spain;
| | - Amalia Enríquez-de-Salamanca
- Institute of Applied Ophthalmobiology (IOBA), Campus Miguel Delibes, University of Valladolid (UVa), Paseo de Belén 17, 47011 Valladolid, Spain;
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Av. Monforte de Lemos, 3-5, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-983-186-369
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Caban M, Owczarek K, Chojnacka K, Lewandowska U. Overview of Polyphenols and Polyphenol-rich Extracts as Modulators of Inflammatory Response in Dry Eye Syndrome. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1874412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Miłosz Caban
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Owczarek
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Chojnacka
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Urszula Lewandowska
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
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Badolati N, Masselli R, Maisto M, Di Minno A, Tenore GC, Stornaiuolo M, Novellino E. Genotoxicity Assessment of Three Nutraceuticals Containing Natural Antioxidants Extracted from Agri-Food Waste Biomasses. Foods 2020; 9:E1461. [PMID: 33066494 PMCID: PMC7602140 DOI: 10.3390/foods9101461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/04/2020] [Accepted: 10/12/2020] [Indexed: 12/11/2022] Open
Abstract
Grapes and apples are the most cultivated fruits in the Mediterranean basin and their agricultural processing is responsible for the production of a large amount of bio-waste. The reuse of this food biomass would increase the volume of recyclable/renewable biomaterial and lower the environmental impact due to the increasing demand for these biological products. To this purpose, agri-food waste from grape and apple processing have become an important source of phytochemicals, and many pharmaceutical industries are using it as starting material to produce dietary supplements, functional foods, and food additives for human consumption. In virtue of the chemical diversity and complexity of agri-food biowaste, developers and producers of nutraceuticals are advised to assess the safety of their final nutraceutical products, in compliance with European Food Safety Authority regulation. Here, we use the Ames test to assess the mutagenicity of three nutraceuticals obtained from agri-food waste biomasses: Taurisolo® from grape pomace of Vitis vinifera L. cv 'Aglianico', AnnurComplex® from Malus pumila M. cv 'Annurca' and Limoncella Apple Extract from Malus domestica B. cv 'Limoncella'. The results showed that all three nutraceuticals were non-mutagenic.
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Affiliation(s)
| | | | | | | | | | - Mariano Stornaiuolo
- Department of Pharmacy, University of Naples Federico II, Via Montesano 49, 80131 Naples, Italy; (N.B.); (R.M.); (M.M.); (A.D.M.); (G.C.T.); (E.N.)
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19
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Non-Extractable Polyphenols from Food By-Products: Current Knowledge on Recovery, Characterisation, and Potential Applications. Processes (Basel) 2020. [DOI: 10.3390/pr8080925] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Non-extractable polyphenols (NEPs), or bound polyphenols, are a significant fraction of polyphenols that are retained in the extraction residues after conventional aqueous organic solvent extraction. They include both high molecular weight polymeric polyphenols and low molecular weight phenolics attached to macromolecules. Current knowledge proved that these bioactive compounds possess high antioxidant, antidiabetic, and other biological activities. Plant-based food by-products, such as peels, pomace, and seeds, possess high amount of NEPs. The recovery of these valuable compounds is considered an effective way to recycle food by-products and mitigate pollution, bad manufacturing practice, and economic loss caused by the residues management. The current challenge to valorise NEPs from plant-based by-products is to increase the extraction efficiency with proper techniques, choose appropriate characterising methods, and explore potential functions to use in some products. Based on this scenario, the present review aims to summarise the extraction procedure and technologies applied to recover NEPs from plant-based by-products. Furthermore, it also describes the main techniques used for the characterisation of NEPs and outlines their potential food, pharmaceutical, nutraceutical, and cosmetic applications.
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20
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Investigation of Total Phenolic Content and Antioxidant Activities of Spruce Bark Extracts Isolated by Deep Eutectic Solvents. CRYSTALS 2020. [DOI: 10.3390/cryst10050402] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Extracts from spruce bark obtained using different deep eutectic solvents were screened for their total phenolic content (TPC) and antioxidant activities. Water containing choline chloride-based deep eutectic solvents (DESs) with lactic acid and 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, and 1,5-pentanediol, with different molar ratios, were used as extractants. Basic characteristics of the DESs (density, viscosity, conductivity, and refractive index) were determined. All the DESs used behave as Newtonian liquids. The extractions were performed for 2 h at 60 °C under continuous stirring. TPC was determined spectrophotometrically, using the Folin-Ciocalteu reagent, and expressed as gallic acid equivalent (GAE). The antioxidant activity was determined spectrophotometrically by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. The TPC varied from 233.6 to 596.2 mg GAE/100 g dry bark; radical scavenging activity (RSA) ranged between 81.4% and 95%. This study demonstrated that deep eutectic solvents are suitable solvents for extracting phenolic compounds from spruce bark.
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Ji M, Gong X, Li X, Wang C, Li M. Advanced Research on the Antioxidant Activity and Mechanism of Polyphenols from Hippophae Species-A Review. Molecules 2020; 25:E917. [PMID: 32092874 PMCID: PMC7071004 DOI: 10.3390/molecules25040917] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/16/2020] [Accepted: 02/18/2020] [Indexed: 01/23/2023] Open
Abstract
Oxidation is a normal consequence of metabolism in biological organisms. The result is the formation of detrimental reactive oxygen species (ROS) and reactive nitrogen species (RNS). A large number of studies have shown that polyphenolic compounds have good antioxidant properties. Hippophae species plants have high polyphenolic content and are widely used in food, medicinal, or the cosmetic field. The main polyphenols in Hippophae species are flavonoids, phenolic acids and tannins, which have multiple effects. However, there is a limited number of studies on polyphenols in Hippophae species plants. This review systematically summarizes the polyphenols compounds and antioxidant activity of Hippophae species plants, and it is noteworthy that the main mechanisms of the polyphenols of Hippophae with antioxidant activity have been summarized as follows: regulating enzyme activity, affect the antioxidant reaction of cells, and others. This review provides useful information for the further study and application of Hippophae species polyphenols and their antioxidant activity.
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Affiliation(s)
- Mingyue Ji
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
| | - Xue Gong
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
| | - Xue Li
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot 010110, China;
| | - Congcong Wang
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
| | - Minhui Li
- Department of Pharmacy, Baotou Medical College, Baotou 014060, China; (M.J.); (X.G.); (C.W.)
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot 010110, China;
- Qiqihar Medical University, Qiqihar 161006, China
- Pharmaceutical Laboratory, Inner Mongolia Autonomous Region Academy of Chinese Medicine, Hohhot 010020, China
- Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Baotou Medical College, Baotou 014060, China
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Antiproliferative, Antimicrobial, and Antifungal Activities of Polyphenol Extracts from Ferocactus Species. Processes (Basel) 2020. [DOI: 10.3390/pr8020138] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Polyphenols, obtained from natural resources, may possess important pharmacological effects. The polyphenolic profiles of the stem extracts of six Ferocactus species (sp.): F. gracilis, F. pottsii, F. herrerae, F. horridus, F. glaucescens, and F. emoryi, were measured using high-performance liquid chromatography (HPLC) with diode-array detection (DAD). Additionally, anticancer, antibacterial, and antifungal activities were examined. Results showed the presence of high to moderate amounts of polyphenols in the extracts (phenolic acids: Protocatechuic acid, 3,4-dihydroxyphenylacetic acid, caffeic acid, and vanillic acid; flavonoids: Rutoside and quercitrin). The highest amounts of 3,4-dihydroxyphenylacetic acid were found in F. glaucescens ((132.09 mg 100 g−1 dry weight (DW)), F. pottsii (75.71 mg 100 g−1 DW), and F. emoryi (69.14 mg 100 g−1 DW) while rutoside content was highest in F. glaucescens (107.66 mg 100 g−1 DW). Maximum antiproliferative activities were observed against HeLa and Jurkat cancer cells, with F. glaucescens, F. emoryi, and F. pottsii showing the highest anticancer activity. Most bacteria were sensitive to Ferocactus sp. stem extracts. Escherichia coli and Staphylococcus aureus were the most sensitive. Excellent antifungal effects were observed against Aspergillus ochraceus and A. niger. However, Penicillium funiculosum, P. ochrochloron, and Candida albicans were relatively resistant. This is the first study reporting novel sources of polyphenols in Ferocactus sp. with anticancer and antimicrobial activities.
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Polyphenolic Antioxidants from Agri-Food Waste Biomass. Antioxidants (Basel) 2019; 8:antiox8120624. [PMID: 31817614 PMCID: PMC6943438 DOI: 10.3390/antiox8120624] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022] Open
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Polyphenolic Profile and Antioxidant Activity of Juglans regia L. Leaves and Husk Extracts. FORESTS 2019. [DOI: 10.3390/f10110988] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The aim of this study is to characterize the antioxidant capacity and establish the profile of polyphenolic compounds in walnut extracts (different extracts prepared from walnut leaf and green husks). The correlation between bioingredients of the product tested and their ability to scavenge free radicals and reduce them by chelating various metal ions were examined. Research technology combining TG (thermogravimetry), FTIR (Fourier-transform infrared spectroscopy), high-performance liquid chromatography system (HPLC) with electrochemical methods (cyclic and differential pulse voltammetry) and spectrophotometric methods (ABTS, FRAP, and DPPH assays) was used to rate the potential oxidation-reduction components of walnut extracts. A high affinity for scavenging free radicals ABTS and DPPH was found for natural substances present in leaves and green husks. The walnut is beneficial to health as it contains alpha-linolenic acid in its lipid fraction and, as demonstrated in this study, its husks are rich in polyphenolics with high antioxidant capacity.
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