1
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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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2
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Kabous KE, Atfaoui K, Oubihi A, Hamoutou S, Ouhssine M. The Study of the Heterogeneity of the Qualities of Argan Oils and Pomaces from Different Cooperatives in the Essaouira Region (Morocco). J Oleo Sci 2023; 72:283-293. [PMID: 36878582 DOI: 10.5650/jos.ess22222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
In this study, a comparison of the intra-regional variation in the quality of Argan oil and pomace collected from 12 cooperatives in the Essaouira region (Morocco) during the COVID-19 period was carried out. All studied Argan pomaces together with the extraction solvents showed a significant difference (p ≤ 0.05) in the total phenolic compounds, flavonoids, and tannins contents. The proteins, residual oils, total sugars, and total reducing sugars contents in the collected pomaces vary considerably among cooperatives of origin, with maximum averages of 50.45%; 30.05%; 3.82 milligrams of glucose equivalent per gram of dry matter; and 0.53 milligrams of glucose equivalent per gram of dry matter, respectively. Therefore, it is a very valuable ingredient for livestock feed and some cosmetic products that may contain it. The remaining Argan oil content in the pomace varied significantly among cooperatives, ranging from 8.74 to 30.05%. Pomace from traditional extraction recorded the highest content (30.05%), showing that the artisanal and modern extraction processes are not standardized. The measurements of acidity, peroxide value, specific extinction coefficient at 232 nm and 270 nm, and conjugated dienes were carried out in accordance with Moroccan Standard 08.5.090 in order to qualitatively classify all investigated Argan oils. Accordingly, the analyzed oils were categorized as "extra virgin Argan oil," "fine virgin Argan oil," "ordinary virgin Argan oil," and "lampante virgin Argan oil." Therefore, several factors can explain these variations in quality grades, both endogenous and exogenous. Overall, the variation observed in the obtained result allows us to deduce the most significant variables impacting the quality of Argan products and by-products.
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Affiliation(s)
- Karima El Kabous
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Khadija Atfaoui
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Asmaa Oubihi
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Souad Hamoutou
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
| | - Mohammed Ouhssine
- Laboratory of Natural Resources and Sustainable Development, Department of Biology, Faculty of Sciences, Ibn Tofaïl University
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3
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Paulo F, Tavares L, Santos L. Response Surface Modeling and Optimization of the Extraction of Phenolic Antioxidants from Olive Mill Pomace. Molecules 2022; 27:8620. [PMID: 36500712 PMCID: PMC9741320 DOI: 10.3390/molecules27238620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
Bioactive compounds from olive mill pomace (OMP) were extracted through a two-step solid-liquid extraction procedure considering four factors at five levels of a central composite rotatable response surface design. The influence of the process variables time of the primary extraction (2.0-4.0 h), solvent-to-sample ratio during the primary extraction (5.0-10.0 mL/g), time of the secondary extraction (1.0-2.0 h), and the solvent-to-sample ratio during the secondary extraction (3.0-5.0 mL/g) were examined. The content of bioactive compounds was determined spectrophotometrically, and the individual phenolic compounds were evaluated by reserved-phase high-performance liquid chromatography (RP-HPLC). The Derringer's function was used to optimize the extraction process, and the best conditions were found to be 3.2 h for the primary extraction, 10.0 mL/g for the solvent-to-sample ratio and 1.3 h for the secondary extraction associated with a solvent-to-sample ratio of 3.0 mL/g, obtaining a total phenolic content of 50.0 (expressed as mg gallic acid equivalents (GAE)/g dry weight (dw). The response surface methodology proved to be a great alternative for reducing the number of tests, allowing the optimization of the extraction of phenolic antioxidants from OMP with a reduced number of experiments, promoting reductions in cost and analysis time.
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Affiliation(s)
- Filipa Paulo
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Loleny Tavares
- ESAN—School of Design, Management and Production Technologies Northern Aveiro, University of Aveiro, Estrada do Cercal 449, Oliveira de Azeméis, 3720-509 Santiago de Riba-Ul, Portugal
| | - Lúcia Santos
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Sánchez CJ, Barrero-Domínguez B, Martínez-Miró S, Madrid J, Baños A, Aguinaga MA, López S, Hernández F. Use of Olive Pulp for Gestating Iberian Sow Feeding: Influence on Performance, Health Status Indicators, and Fecal Microbiota. Animals (Basel) 2022; 12:ani12223178. [PMID: 36428405 PMCID: PMC9686466 DOI: 10.3390/ani12223178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Olive pulp (Olea europaea) inclusion in the diet of Iberian sows (Sus scrofa) is interesting due to fiber and bioactive compounds content and because both productions are located in the same area. The aim of this trial was to study the effect of olive pulp inclusion at 100 g/kg in Iberian sow’s diet on performance, immunoglobulin and serum parameters, antioxidant status, and fecal microbiota. Forty multiparous Iberian sows (body weight (BW) = 149.6 ± 20.2 kg) were assigned either a control diet (CON) or an experimental diet (PUL) with olive pulp at 100 g/kg. The BW and backfat thickness in sows were measured at post-insemination days 42 and 107, and litter performance was measured on the farrowing day. Blood and fecal samples were collected at gestation day 107. In piglets, blood was sampled when they were 10 days old for immunoglobulin analysis. Albumin, total protein, triglyceride, creatinine, urea, glucose, and Trolox equivalent antioxidant capacity in serum were higher (p < 0.05) in PUL sows than in CON sows. The Enterobacteriaceae, Bifidobacterium spp., and Lactobacillus spp. fecal counts were increased (p < 0.05) with olive pulp supplementation compared with the CON sow group. Olive pulp added to gestating Iberian sow’s diet at 100 g/kg has beneficial effects on the fecal microbiota and antioxidant status, without penalizing other gestation parameters.
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Affiliation(s)
- Cristian Jesús Sánchez
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Murcia, Spain
- Correspondence: ; Tel.: +34-622-540-243
| | | | - Silvia Martínez-Miró
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Murcia, Spain
| | - Josefa Madrid
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Murcia, Spain
| | - Alberto Baños
- DMC Research Center, Camino de Jayena, 82, 18620 Alhendín, Granada, Spain
| | | | - Silvia López
- Dcoop Sociedad Cooperativa Andaluza, Carretera Córdoba S/N, 29200 Antequera, Málaga, Spain
| | - Fuensanta Hernández
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Murcia, Spain
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Selim S, Albqmi M, Al-Sanea MM, Alnusaire TS, Almuhayawi MS, AbdElgawad H, Al Jaouni SK, Elkelish A, Hussein S, Warrad M, El-Saadony MT. Valorizing the usage of olive leaves, bioactive compounds, biological activities, and food applications: A comprehensive review. Front Nutr 2022; 9:1008349. [PMID: 36424930 PMCID: PMC9678927 DOI: 10.3389/fnut.2022.1008349] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 10/04/2022] [Indexed: 11/10/2022] Open
Abstract
Olive oil production is a significant source of economic profit for Mediterranean nations, accounting for around 98 percent of global output. Olive oil usage has increased dramatically in recent years, owing to its organoleptic characteristics and rising knowledge of its health advantages. The culture of olive trees and the manufacture of industrial and table olive oil produces enormous volumes of solid waste and dark liquid effluents, involving olive leaves, pomace, and olive oil mill wastewaters. These by-products cause an economic issue for manufacturers and pose major environmental concerns. As a result, partial reuse, like other agronomical production wastes, is a goal to be achieved. Because these by-products are high in bioactive chemicals, which, if isolated, might denote components with significant added value for the food, cosmetic, and nutraceutical sectors, indeed, they include significant amounts of beneficial organic acids, carbohydrates, proteins, fibers, and phenolic materials, which are distributed differently between the various wastes depending on the olive oil production method and table olive agronomical techniques. However, the extraction and recovery of bioactive materials from chosen by-products is a significant problem of their reasonable value, and rigorous detection and quantification are required. The primary aims of this review in this context are to outline the vital bioactive chemicals in olive by-products, evaluate the main developments in extraction, purification, and identification, and study their uses in food packaging systems and safety problems.
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Affiliation(s)
- Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
- Olive Research Center, Jouf University, Sakaka, Saudi Arabia
- *Correspondence: Samy Selim,
| | - Mha Albqmi
- Olive Research Center, Jouf University, Sakaka, Saudi Arabia
- Department of Chemistry, College of Science and Arts, Jouf University, Al Qurayyat, Saudi Arabia
| | - Mohammad M. Al-Sanea
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
| | | | - Mohammed S. Almuhayawi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hamada AbdElgawad
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Soad K. Al Jaouni
- Department of Hematology and Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Amr Elkelish
- Department of Botany and Microbiology, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Shaimaa Hussein
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
| | - Mona Warrad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences at Al-Quriat, Jouf University, Al Qurayyat, Saudi Arabia
| | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
- Mohamed T. El-Saadony,
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6
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Paulo F, Tavares L, Santos L. In vitro digestion, bioaccessibility, and release kinetics studies of encapsulated bioactive compounds obtained from olive mill pomace. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01579-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Balbinot Filho CA, Teixeira RF, Azevedo ML, Gautério FGA. Obtaining and characterization of olive (
Olea europaea
L.) pomace flour: an investigation on its applicability in gluten‐free cake formulations added with xanthan. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.17046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Clóvis A. Balbinot Filho
- Faculdade de Engenharia de Alimentos, Universidade Federal do Pampa, 96460‐000 Bagé RS Brazil
- Present address: Departamento de Engenharia Química e de Alimentos, EQA, Universidade Federal de Santa Catarina, 88040‐900 Florianópolis SC Brazil
| | - Renata F. Teixeira
- Faculdade de Engenharia de Alimentos, Universidade Federal do Pampa, 96460‐000 Bagé RS Brazil
- Present address: Departamento de Engenharia Química e de Alimentos, EQA, Universidade Federal de Santa Catarina, 88040‐900 Florianópolis SC Brazil
| | - Miriane L. Azevedo
- Faculdade de Engenharia de Alimentos, Universidade Federal do Pampa, 96460‐000 Bagé RS Brazil
| | - Fernanda G. A. Gautério
- Faculdade de Engenharia de Alimentos, Universidade Federal do Pampa, 96460‐000 Bagé RS Brazil
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8
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Virginia de Almeida Pontes P, Czaikoski A, Aparecida Almeida N, Fraga S, de Oliveira Rocha L, Lopes Cunha R, José Maximo G, Augusto Caldas Batista E. Extraction optimization, biological activities, and application in O/W emulsion of deep eutectic solvents-based phenolic extracts from olive pomace. Food Res Int 2022; 161:111753. [DOI: 10.1016/j.foodres.2022.111753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/12/2022] [Accepted: 07/26/2022] [Indexed: 11/04/2022]
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9
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Cravotto C, Fabiano-Tixier AS, Claux O, Rapinel V, Tomao V, Stathopoulos P, Skaltsounis AL, Tabasso S, Jacques L, Chemat F. Higher Yield and Polyphenol Content in Olive Pomace Extracts Using 2-Methyloxolane as Bio-Based Solvent. Foods 2022; 11:1357. [PMID: 35564082 PMCID: PMC9104984 DOI: 10.3390/foods11091357] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 12/04/2022] Open
Abstract
Despite its severe toxicity and negative environmental impact, hexane remain the solvent of choice for the extraction of vegetable oils. This is in contrast with the constantly growing demand for sustainable and green extraction processes. In recent years a variety of alternatives to hexane have been reported, among them 2-methyloxolane (2-MeOx), which has emerged as a promising bio-based alternative. This study evaluates the possibility of replacing hexane, in the extraction of olive pomace (OP), with 2-MeOx, both dry and saturated with water (4.5%), the latter of which is called 2-MeOx 95.5%. The three solvents have been compared in terms of extraction yield and quality, as well as the lipid and polyphenol profiles of the extracts. The work concluded that both dry 2-MeOx and 2-MeOx 95.5% can replace hexane in OP extraction, resulting in higher yields and extracts richer in phenolic compounds. This study should open the road to further semi-industrial scale investigations toward more sustainable production processes.
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Affiliation(s)
- Christian Cravotto
- GREEN Extraction Team, INRAE, UMR 408, Avignon Université, F-84000 Avignon, France; (C.C.); (O.C.); (F.C.)
| | - Anne Sylvie Fabiano-Tixier
- GREEN Extraction Team, INRAE, UMR 408, Avignon Université, F-84000 Avignon, France; (C.C.); (O.C.); (F.C.)
| | - Ombéline Claux
- GREEN Extraction Team, INRAE, UMR 408, Avignon Université, F-84000 Avignon, France; (C.C.); (O.C.); (F.C.)
| | - Vincent Rapinel
- Pennakem Europa, 224 Avenue de la Dordogne, F-59640 Dunkerque, France; (V.R.); (L.J.)
| | - Valérie Tomao
- MicroNut Team, INRAE, UMR 408, Avignon Université, F-84000 Avignon, France;
| | - Panagiotis Stathopoulos
- Department of Pharmacognosy, School of Pharmacy, University of Athens, Panepistimioupolis, 15571 Zografou, Greece; (P.S.); (A.L.S.)
| | - Alexios Leandros Skaltsounis
- Department of Pharmacognosy, School of Pharmacy, University of Athens, Panepistimioupolis, 15571 Zografou, Greece; (P.S.); (A.L.S.)
| | - Silvia Tabasso
- Department of Chemistry, University of Turin, Via P. Giuria 7, 10125 Turin, Italy;
| | - Laurence Jacques
- Pennakem Europa, 224 Avenue de la Dordogne, F-59640 Dunkerque, France; (V.R.); (L.J.)
| | - Farid Chemat
- GREEN Extraction Team, INRAE, UMR 408, Avignon Université, F-84000 Avignon, France; (C.C.); (O.C.); (F.C.)
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10
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Ribeiro TB, Voss GB, Coelho MC, Pintado ME. Food waste and by-product valorization as an integrated approach with zero waste: Future challenges. FUTURE FOODS 2022. [DOI: 10.1016/b978-0-323-91001-9.00017-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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11
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Ribeiro TB, Oliveira A, Coelho M, Veiga M, Costa EM, Silva S, Nunes J, Vicente AA, Pintado M. Are olive pomace powders a safe source of bioactives and nutrients? JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:1963-1978. [PMID: 32914435 DOI: 10.1002/jsfa.10812] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 07/22/2020] [Accepted: 09/10/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The olive oil industry generates significant amounts of semi-solid wastes, namely olive pomace. Olive pomace is a by-product rich in high-value compounds (e.g. dietary fibre, unsaturated fatty acids, polyphenols) widely explored to obtain new food ingredients. However, conventional extraction methods frequently use organic solvents, while novel eco-friendly techniques have high operational costs. The development of powdered products without any extraction step has been proposed as a more feasible and sustainable approach. RESULTS The present study fractionated and valorized the liquid and pulp fraction of olive pomace obtaining two stable and safe powdered ingredients, namely a liquid-enriched powder (LOPP) and a pulp-enriched powder (POPP). These powders were characterized chemically, and their bioactivity was assessed. LOPP exhibited a significant amount of mannitol (141 g kg-1 ), potassium (54 g kg-1 ) and hydroxytyrosol derivatives (5 mg g-1 ). POPP exhibited a high amount of dietary fibre (620 g kg-1 ) associated with a significant amount of bound phenolics (7.41 mg GAE g-1 fibre DW) with substantial antioxidant activity. POPP also contained an unsaturated fatty acid composition similar to that of olive oil (76% of total fatty acids) and showed potential as a reasonable source of protein (12%). Their functional properties (solubility, water-holding and oil-holding capacity), antioxidant capacity and antimicrobial activity were also assessed, and their biological safety was verified. CONCLUSIONS The development of olive pomace powders for application in the food industry could be a suitable strategy to add value to olive pomace and obtain safe multifunctional ingredients with higher health-promoting effects than dietary fibre and polyphenols. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Tânia Bragança Ribeiro
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
- Association BLC3, Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, Portugal
| | - Ana Oliveira
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
| | - Marta Coelho
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
| | - Mariana Veiga
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
| | - Eduardo M Costa
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
| | - Sara Silva
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
| | - João Nunes
- Association BLC3, Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, Portugal
| | - António A Vicente
- CEB - Centre of Biological Engineering, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Manuela Pintado
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Universidade Católica Portuguesa, Escola Superior de Biotecnologia, Porto, Portugal
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Olive Mill Wastes: A Source of Bioactive Molecules for Plant Growth and Protection against Pathogens. BIOLOGY 2020; 9:biology9120450. [PMID: 33291288 PMCID: PMC7762183 DOI: 10.3390/biology9120450] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/28/2022]
Abstract
Simple Summary Olive oil is the most common vegetable oil used for human nutrition, and its production represents a major economic sector in Mediterranean countries. The milling industry generates large amounts of liquid and solid residues, whose disposal is complicated and costly due to their polluting properties. However, olive mill waste (OMW) may also be seen as a source of valuable biomolecules including plant nutrients, anthocyanins, flavonoids, polysaccharides, and phenolic compounds. This review describes recent advances and multidisciplinary approaches in the identification and isolation of valuable natural OMW-derived bioactive molecules. Such natural compounds may be potentially used in numerous sustainable applications in agriculture such as fertilizers, biostimulants, and biopesticides in alternative to synthetic substances that have a negative impact on the environment and are harmful to human health. Abstract Olive oil production generates high amounts of liquid and solid wastes. For a long time, such complex matrices were considered only as an environmental issue, due to their polluting properties. On the other hand, olive mill wastes (OMWs) exert a positive effect on plant growth when applied to soil due to the high content of organic matter and mineral nutrients. Moreover, OMWs also exhibit antimicrobial activity and protective properties against plant pathogens possibly due to the presence of bioactive molecules including phenols and polysaccharides. This review covers the recent advances made in the identification, isolation, and characterization of OMW-derived bioactive molecules able to influence important plant processes such as plant growth and defend against pathogens. Such studies are relevant from different points of view. First, basic research in plant biology may benefit from the isolation and characterization of new biomolecules to be potentially applied in crop growth and protection against diseases. Moreover, the valorization of waste materials is necessary for the development of a circular economy, which is foreseen to drive the future development of a more sustainable agriculture.
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13
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Ross KA, DeLury N, Fukumoto L, Diarra MS. Dried berry pomace as a source of high value-added bioproduct: drying kinetics and bioactive quality indices. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1847144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- K. A. Ross
- Summerland Research and Development Centre, Agriculture and Agri-Food Canada, Summerland, BC, Canada
| | - N. DeLury
- Summerland Research and Development Centre, Agriculture and Agri-Food Canada, Summerland, BC, Canada
| | - L. Fukumoto
- Summerland Research and Development Centre, Agriculture and Agri-Food Canada, Summerland, BC, Canada
| | - M. S. Diarra
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, ON, Canada
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14
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Nutritional and organoleptic properties of murta (Ugni molinae Turcz) berries impregnated with Lactobacillus casei var. rhamnosus and dehydrated by different methods. Food Chem 2019; 299:125117. [DOI: 10.1016/j.foodchem.2019.125117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/27/2019] [Accepted: 07/01/2019] [Indexed: 11/24/2022]
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15
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Ultrasound-Assisted Extraction as a First Step in a Biorefinery Strategy for Valorisation of Extracted Olive Pomace. ENERGIES 2019. [DOI: 10.3390/en12142679] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Currently, interest in finding new feedstock as sources of natural food antioxidants is growing. The extracted olive pomace (EOP), which is an agro-industrial residue from the olive pomace extracting industries, is generated yearly in big amounts, mainly in the Mediterranean countries. EOP was subjected to an ultrasound assisted extraction with ethanol-water mixtures. The effect of main parameters, such as ethanol concentration (30–70% v/v), ultrasound amplitude (20–80%), and extraction time (5–15 min), on the extraction of antioxidant compounds was evaluated according to a Box–Behnken experimental design. The antioxidant capacity of the resulting extracts was determined by measuring their content in total phenolic compounds (TPC) and flavonoids (TFC), as well as their antioxidant activity by DPPH, ferric reducing antioxidant power (FRAP), and ABTS assays. Considering the simultaneous maximization of these five responses, the optimal conditions were found to be 43.2% ethanol concentration, 70% amplitude, and 15 min. The ultrasound assisted extraction of EOP under these optimized conditions yielded an extract with a phenolic and flavonoid content (per gram of EOP) of 57.5 mg gallic acid equivalent (GAE) and 126.9 mg rutin equivalent (RE), respectively. Likewise, the values for DPPH, ABTS, and FRAP assay (per gram of EOP) of 56.7, 139.1, and 64.9 mg Trolox equivalent, respectively were determined in the optimized extract.
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Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization. Processes (Basel) 2019. [DOI: 10.3390/pr7050249] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The Powder-Activated Carbon (PAC) under optimum conditions from a new low-cost precursor Date Palm Fibre (DPF) biomass through a carbonization followed by KOH activation has been synthesized by response surface methodology (RSM) combined with central composite design (CCD). The special effects of activation temperature, time, and impregnation ratio on bio-PAC Aluminum (Al3+) removal and uptake capacity were examined. The optimum conditions for synthesized bio-PAC were found to be 99.4% and 9.94 mg·g−1 for Al3+ removal and uptake capacity, respectively at activation temperature 650 °C, activation time 1h and impregnation ratio 1. The optimum bio-PAC was characterized and analyzed using FESEM, FTIR, XRD, TGA, BET, and Zeta potential. RSM-CCD experimental design was used to optimize removal and uptake capacity of Al3+ on bio-PAC. Optimum conditions were found to be at bio-PAC dose of 5 mg with pH 9.48 and contact time of 117 min. Furthermore, at optimized conditions of Al3+ removal, kinetic, and isotherm models were investigated. The results reveal the feasibility of DPF biomass to be used as a potential and cost-effective precursor for synthesized bio-PAC for Al3+ removal.
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Araújo M, Pimentel FB, Alves RC, Oliveira MBP. Phenolic compounds from olive mill wastes: Health effects, analytical approach and application as food antioxidants. Trends Food Sci Technol 2015. [DOI: 10.1016/j.tifs.2015.06.010] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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