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Moh SM, Tojo S, Teruya T, Kato-Noguchi H. Allelopathy and Identification of Five Allelochemicals in the Leaves of the Aromatic Medicinal Tree Aegle marmelos (L.) Correa. PLANTS (BASEL, SWITZERLAND) 2024; 13:559. [PMID: 38498556 PMCID: PMC10892298 DOI: 10.3390/plants13040559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 03/20/2024]
Abstract
Aegle marmelos (L.) Correa is an economically and therapeutically valuable tree. It is cultivated as a fruit plant in southeast Asian countries. In this research, we investigated the allelopathy and possible allelochemicals in the leaves of A. marmelos. Aqueous methanol extracts of A. marmelos exhibited significant inhibitory effects against the growth of Lepidium sativum, Lactuca sativa, Medicago sativa, Echinochloa crusgalli, Lolium multiflorum, and Phleum pratense. Bioassay-directed chromatographic purification of the A. marmelos extracts resulted in identifying five active compounds: umbelliferone (1), trans-ferulic acid (2), (E)-4-hydroxycinnamic acid methyl ester (3), trans-cinnamic acid (4), and methyl (E)-3'-hydroxyl-4'-methoxycinnamate (5). The hypocotyl and root growth of L. sativum were considerably suppressed by these compounds. Methyl (E)-3'-hydroxyl-4'-methoxycinnamate also suppressed the coleoptile and root growth of E. crusgalli. The concentrations of these compounds, causing 50% growth reduction (I50) of L. sativum, were in the range of 74.19-785.4 μM. The findings suggest that these isolated compounds might function in the allelopathy of A. marmelos.
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Affiliation(s)
- Seinn Moh Moh
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki 761-0795, Kagawa, Japan;
- The United Graduate School of Agricultural Sciences, Ehime University, Matsuyama 790-8566, Ehime, Japan
| | - Shunya Tojo
- Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara 903-0213, Okinawa, Japan;
| | - Toshiaki Teruya
- Faculty of Education, University of the Ryukyus, 1 Senbaru, Nishihara 903-0213, Okinawa, Japan;
| | - Hisashi Kato-Noguchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki 761-0795, Kagawa, Japan;
- The United Graduate School of Agricultural Sciences, Ehime University, Matsuyama 790-8566, Ehime, Japan
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Elayadi F, Achak M, Boumya W, Barka N, Lamy E, El Adlouni C. Olive mill wastewater treatment using natural adsorbents: phytotoxicity on durum wheat (Triticum turgidum L. var. durum) and white bean (Phaseolus vulgaris L.) seed germination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109481-109499. [PMID: 37924176 DOI: 10.1007/s11356-023-29741-w] [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: 03/10/2023] [Accepted: 09/02/2023] [Indexed: 11/06/2023]
Abstract
This research was undertaken to optimize the phenolic compound removal from Olive Mill Wastewater (OMW) by sawdust and red clay as natural adsorbents. Fractional factorial experimental design at 25-1 was used in order to optimize the experimental conditions for high removal efficiency. Statistics ANOVA analysis, Fisher's test, and Student's test suggested that the adsorbent dose has the most significant influence on polyphenol removal for both adsorbents. The maximum removal of polyphenols by sawdust reached 49.6% at 60 °C by using 60 g/L of adsorbent dose, pH 2, reaction time of 24 h, and agitation speed of 80 rpm. Whereas, for red clay, 48.08% of polyphenols removal was observed under the same conditions for sawdust except the temperature of 25 °C instead of 60 °C. In addition, the thermodynamic parameters suggested spontaneous process for both adsorbents, endothermic for the sawdust and exothermic for red clay. Furthermore, the phytotoxicity effect of OMW on durum wheat (Triticum turgidum L. var. durum) and white bean (Phaseolus vulgaris L.) seed germination was investigated. The obtained results showed that the untreated OMW inhibited the seed germination of T. turgidum and P. vulgaris seeds. OMW treatment with red clay followed by dilution (95% water) resulted in 87 and 30% germination of P. vulgaris and T. turgidum, respectively. While, the treatment of OMW with sawdust and dilution at 95% resulted in 51 and 26% germination of P. vulgaris and T. turgidum, respectively.
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Affiliation(s)
- Fatima Elayadi
- Marine Biotechnologies and Environment, Laboratory Sciences Faculty, Chouaïb Doukkali University, El Jadida, Morocco
- Science Engineer Laboratory for Energy, National School of Applied Sciences, Chouaïb Doukkali University, El Jadida, Morocco
| | - Mounia Achak
- Science Engineer Laboratory for Energy, National School of Applied Sciences, Chouaïb Doukkali University, El Jadida, Morocco.
- Chemical & Biochemical Sciences. Green Process Engineering, CBS, Mohammed VI Polytechnic University, Ben Guerir, Morocco.
| | - Wafaa Boumya
- Multidisciplinary Research and Innovation Laboratory, Sultan Moulay Slimane University of Beni Mellal, FP Khouribga, Morocco
| | - Noureddine Barka
- Multidisciplinary Research and Innovation Laboratory, Sultan Moulay Slimane University of Beni Mellal, FP Khouribga, Morocco
| | - Edvina Lamy
- Integrated Transformations of Renewable Matter (TIMR), Sorbonne University, University of Technology of Compiegne, UTC/ESCOM, EA 4297 TIMR, Compiegne, France
| | - Chakib El Adlouni
- Marine Biotechnologies and Environment, Laboratory Sciences Faculty, Chouaïb Doukkali University, El Jadida, Morocco
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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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Li S, Sheng Y, Xiao S, Liu Q, Sun K. Exolaccase Propels Humification to Decontaminate Bisphenol A and Create Humic-like Biostimulants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37470251 DOI: 10.1021/acs.jafc.3c02958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Exolaccase-propelled humification (E-PH) helps eliminate phenolic pollutants and produce macromolecular precipitates. Herein, we investigated the influencing mechanism of 12 humic precursors (HPs) on exolaccase-enabled bisphenol A (BPA) decontamination and humification. Catechol, vanillic acid, caffeic acid, and gentian acid not only expedited BPA removal but also created large amounts of copolymeric precipitates. These precipitates had rich functional groups similar to natural humic substances, which presented great aromatic and acidic characteristics. The releasing amounts of BPA monomer from four precipitates were 0.08-12.87% at pH 2.0-11.0, suggesting that BPA-HP copolymers had pH stability. More excitingly, certain copolymeric precipitates could stimulate the growth and development of radish seedlings. The radish growth-promotion mechanisms of copolymers were involved in two aspects: (1) Copolymers interacted with root exudates to accelerate nutrient uptake; (2) Copolymers released auxins to provoke radish growth. These results may provide an innovative strategy for decontaminating phenolic pollutants and yielding humic-like biostimulants in E-PH.
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Affiliation(s)
- Shunyao Li
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Anhui University, Hefei 230601, Anhui, China
| | - Yuehui Sheng
- Suzhou Zhongsheng Environmental Remediation Co., Ltd., Suzhou 215104, Jiangsu, China
| | - Shenghua Xiao
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Qingzhu Liu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Kai Sun
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China
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Carmona I, Aguirre I, Griffith DM, García-Borrego A. Towards a circular economy in virgin olive oil production: Valorization of the olive mill waste (OMW) "alpeorujo" through polyphenol recovery with natural deep eutectic solvents (NADESs) and vermicomposting. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 872:162198. [PMID: 36791855 DOI: 10.1016/j.scitotenv.2023.162198] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Virgin olive oil (VOO) production generates large amounts of a harmful by-product, olive mill waste (OMW) or alpeorujo, which has a strong environmental impact and that must be recycled to adapt VOO production to a circular economy model. Here, the valorization of OMW was studied by considering three consecutive stages: Stage 1 involves the generation of OMW; Stage 2 the recovery of bioactive phenolic compounds from the fresh OMW using natural deep eutectic solvents (NADESs), generating a valuable phenolic extract and a new by-product, a dephenolized OMW named "alpeoNADES"; and Stage 3 involves vermicomposting alpeoNADES with Eisenia fetida earthworms. Six NADES were formulated and tested, selecting a NADES composed of citric acid and fructose (CF) derived from food grade and biodegradable substances. CF was the most effective solvent to obtain phenolic extracts for nutraceutical and agronomical purposes, extracting 3988.74 mg/kg of polyphenols from fresh OMW. This alpeoNADES is a non-palatable substrate for E. fetida earthworms, as the residual CF gives it an acidic pH (pH 2). Its palatability was improved by mixing it with horse manure and straw for vermicomposting, in a 1:1 and 3:1 dry weight ratio. When these substrates were precomposted for 3 weeks they reached pH 5.5-6 and they could then be vermicomposted for 23 weeks (using OMW as a control). The best substrate for vermicomposting was determined by the worm biomass, growth rate, carbon to nitrogen (C:N) ratio, and N and P content. AlpeoNADES and manure 3:1 produced the highest quality vermicompost in the shortest time, generating a product that complied with European standards for organic fertilizers. Hence, alpeoNADES was recycled to a low-cost, organic balanced fertilizer in Stage 3, enabling the olive oil industry to transition to sustainable production through this integrated circular economy design.
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Affiliation(s)
- Inmaculada Carmona
- EcoSs_Lab, Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, 1101608 Loja, Ecuador; Department of Agronomy, Universidad de Sevilla, Seville, Spain
| | - Itziar Aguirre
- Department of Agronomy, Universidad de Sevilla, Seville, Spain
| | - Daniel M Griffith
- EcoSs_Lab, Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, 1101608 Loja, Ecuador
| | - Aranzazu García-Borrego
- Department of Food Phytochemicals, Instituto de la Grasa, Spanish National Research Council (CSIC), Seville, Spain.
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Saf C, Gondet L, Villain-Gambier M, Belaqziz M, Trebouet D, Ouazzani N. Investigation of the agroecological applications of olive mill wastewater fractions from the ultrafiltration-nanofiltration process. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 333:117467. [PMID: 36764180 DOI: 10.1016/j.jenvman.2023.117467] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/19/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Agricultural applications of olive mill wastewater (OMW) represent a critical challenge, consistent with waste recycling and the trend towards a more sustainable pattern of agriculture. In this context, an integrated study on the agroecological applications of OMW from the ultrafiltration (UF) - nanofiltration (NF) process was carried out. This process generated three fractions: UF retentate and NF permeate, depleted in salts and phenolic compounds, were studied for their fertilization and irrigation potential, while NF retentate, enriched in these elements, was studied for its potential as a bioherbicide. The phytotoxicity of the NF retentate fraction on two crops (maize and flax) was evaluated on seedlings growth and chloroplast pigments content. In addition, the induced defense responses in maize and flax seedlings were investigated by measuring two parameters: the activity of the detoxification enzyme glutathione-S-transferase (GST) and the concentration of polyphenols, as a component of the antioxidant defense strategy in plants. Biomass, height, and chloroplast pigments content decreased progressively with increasing NF retentate concentration. Conversely, an increase in GST activity and polyphenol concentration was observed. These results highlighted the ability of OMW to induce an oxidative stress on maize and flax seedlings, triggering a defense response through GST and phenolic compounds. On the other hand, in vitro tests on the phytotoxicity of the NF retentate fraction on the common weed Sinapis arvensis were carried out. No germination was observed even with the lowest dilution applied, thus establishing the first data about the selectivity of potential OMW-derived bioherbicides. On the other hand, UF retentate and NF permeate treatments led to a significant increase in maize growth: these fractions could then be considered as a promising organic fertilizer for degraded agricultural soils, as well as an alternative water source for crops irrigation.
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Affiliation(s)
- Chaima Saf
- Laboratory of Water, Biodiversity and Climate Change, Cadi Ayyad University, Marrakech, Morocco; Université de Strasbourg, CNRS, UMR 7178, F-67000, Strasbourg, France
| | - Laurence Gondet
- Université de Strasbourg, CNRS, UMR 7178, F-67000, Strasbourg, France.
| | | | | | | | - Naaila Ouazzani
- Laboratory of Water, Biodiversity and Climate Change, Cadi Ayyad University, Marrakech, Morocco; National Center for Studies and Research on Water and Energy (CNEREE), Cadi Ayyad University, Marrakech, Morocco
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de Souza RB, de Souza CP, Guimarães JR. Environmentally realistic concentrations of eprinomectin induce phytotoxic and genotoxic effects in Allium cepa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80983-80993. [PMID: 35727508 PMCID: PMC9209316 DOI: 10.1007/s11356-022-21403-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Eprinomectin, a veterinary drug within the family of avermectins, is widely used in the agricultural sector to combat a variety of parasites, mainly nematodes. However, only 10% of the drug is metabolized in the organism, so large quantities of the drug are released into the environment through urine and/or feces. Soil is the first and main environmental compartment to be contaminated by it, and nontargeted organisms can be affected. Thus, the present study aims to evaluate the phytotoxicity (through the evaluation of germination, root development, and germination speed) and genotoxicity (through an assessment of the induction of micronuclei and chromosomal aberrations) of eprinomectin. For the analyses, Allium cepa seeds were germinated in soil contaminated with a range of concentrations of eprinomectin: from 0.5 to 62.5 μg/g for the genotoxicity test and from 0.5 to 128.0 μg/g for the phytotoxicity test. The results showed that seed germination was not affected, but root development was affected at concentrations of 0.5 μg/g, 1.0 μg/g, 4.0 μg/g, 8.0 μg/g, 64.0 μg/g, and 128.0 μg/g, and germination speed was significantly changed at concentrations of 1.0 μg/g, 4.0 μg/g, 16.0 μg/g, 32.0 μg/g, and 64.0 μg/g. Significant differences in the mitotic index and genotoxicity index were observed only at concentrations of 2.5 μg/g and 12.5 μg/g, respectively. Only the 0.5 μg/g concentration did not show significant induction of micronuclei in the meristematic cells, but the damage observed at other concentrations did not persist in F1 cells. According to the results, eprinomectin is both phytotoxic and genotoxic, so the release of eprinomectin into the environment should be minimized.
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Affiliation(s)
- Raphael B de Souza
- School of Civil Engineering, Architecture and Urban Design, University of Campinas, Campinas, Brazil.
| | | | - José Roberto Guimarães
- School of Civil Engineering, Architecture and Urban Design, University of Campinas, Campinas, Brazil
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Kypritidou Z, El-Bassi L, Jellali S, Kinigopoulou V, Tziritis E, Akrout H, Jeguirim M, Doulgeris C. Lead removal from aqueous solutions by olive mill wastes derived biochar: Batch experiments and geochemical modelling. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115562. [PMID: 35764000 DOI: 10.1016/j.jenvman.2022.115562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/14/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
In this study, lead removal from aqueous solutions using biochar derived from olive mill solid and liquid wastes has been investigated by applying batch experiments and geochemical modelling. The batch adsorption experiments included the assessment of several key parameters such as the contact time (kinetic), initial concentration (isotherm), pH, adsorbent dose, and the presence of competitive cations, whilst the geochemical modelling focused on the involved adsorption mechanisms using the PHREEQC code. The kinetic studies showed that lead adsorption is a relatively fast process, where intraparticle diffusion is the rate-limiting step. Biochar dose, solution pH and the presence of competitive ions significantly affected the Pb adsorption effectiveness by the biochar. Especially the higher Pb removal percentages were observed in mono-elemental solutions with high biochar dose at mildly acidic solution pH values. The maximum Pb adsorption capacity of biochar was estimated as 40.8 mg g-1 which is higher than various biochars derived from sludge, lignocellulosic and animal biomasses. On the other hand, the geochemical modelling employing the PHREEQC code showed that ion exchange and Pb precipitation are the main reactions controlling its removal from aqueous solutions, whilst surface complexation is insignificant, mainly due to the low surface functional groups on the used biochar.
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Affiliation(s)
- Zacharenia Kypritidou
- Dept. of Economic Geology and Geochemistry, Faculty of Geology and Geo-environment, National & Kapodistrian University of Athens, 15784, Athens, Greece
| | - Leila El-Bassi
- Wastewaters and Environment Laboratory, Water Research and Technologies Center (CERTE), Technopark Borj Cedria, University of Carthage, P.O.Box 273, Soliman, 8020, Tunisia
| | - Salah Jellali
- Center for Environmental Studies and Research, Sultan Qaboos University, Al-Khoud 123, Muscat, Oman
| | - Vasiliki Kinigopoulou
- Soil and Water Resources Institute (SWRI), Hellenic Agricultural Organisation, 574 00, Sindos, Greece
| | - Evangelos Tziritis
- Soil and Water Resources Institute (SWRI), Hellenic Agricultural Organisation, 574 00, Sindos, Greece
| | - Hanene Akrout
- Wastewaters and Environment Laboratory, Water Research and Technologies Center (CERTE), Technopark Borj Cedria, University of Carthage, P.O.Box 273, Soliman, 8020, Tunisia
| | - Mejdi Jeguirim
- Université de Haute-Alsace, CNRS, Institut de Science des Matériaux de Mulhouse (IS2M) UMR 7361, F-68100, Mulhouse, France
| | - Charalampos Doulgeris
- Soil and Water Resources Institute (SWRI), Hellenic Agricultural Organisation, 574 00, Sindos, Greece.
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Campos L, Seixas L, Dias S, Peres AM, Veloso ACA, Henriques M. Effect of Extraction Method on the Bioactive Composition, Antimicrobial Activity and Phytotoxicity of Pomegranate By-Products. Foods 2022; 11:foods11070992. [PMID: 35407079 PMCID: PMC8997943 DOI: 10.3390/foods11070992] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/25/2022] [Accepted: 03/26/2022] [Indexed: 12/13/2022] Open
Abstract
Pomegranate by-products can be an asset to the food industry due to the richness in bioactive and antimicrobial compounds. This work studied the influence of conventional solvent and sonication-assisted extraction methods on the bioactive profile, antimicrobial properties, and phytotoxicity effect of the peels and seeds extracts from Acco, Big Full, and Wonderful pomegranate cultivars. The bioactive composition of the extracts was evaluated for the content of total phenolics, total flavonoids, and antioxidant activity (expressed as the half-maximal inhibitory concentration—IC50) by spectrophotometric methods, while the tannins were determined by titration and the anthocyanins were estimated by the pH-differential method. For the evaluation of the antimicrobial activity, the disk diffusion method of Kirby-Bauer was adapted through inhibition halos against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus, and Yarrowia lipolytica. The extracts’ phytotoxicity was evaluated in vitro on garden-cress seeds. Extracts from conventional extraction were richer in total phenolics, expressed as gallic acid equivalents (0.16–0.73 mg GAE/mg extract), while those from sonication-assisted extraction had higher contents of total flavonoids, expressed as catechin equivalents (0.019–0.068 mg CATE/mg extract); anthocyanins, expressed as cyanidin-3-glucoside (0.06–0.60 µg C3G/mg, dry basis); and antioxidant activity (IC50, 0.01–0.20 mg/mL). All extracts were more effective against Gram-positive bacteria and yeasts than Gram-negative bacteria. In general, the sonication-assisted extracts led to higher inhibition halos (8.7 to 11.4 mm). All extracts presented phytotoxicity against garden-cress seeds in the tested concentrations. Only the lowest concentration (0.003 mg/mL) enabled the germination of seeds and root growth, and the sonication-assisted extracts showed the highest Munoo-Liisa vitality index (51.3%). Overall, sonication-assisted extraction obtained extracts with greater bioactive and antimicrobial potential and less phytotoxicity.
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Affiliation(s)
- Lara Campos
- Polytechnic Institute of Coimbra, Coimbra Agriculture School, Bencanta, 3045-601 Coimbra, Portugal; (S.D.); (M.H.)
- CERNAS, Research Centre for Natural Resources, Environment and Society, Coimbra Agriculture School, Bencanta, 3045-601 Coimbra, Portugal
- Correspondence:
| | - Luana Seixas
- Polytechnic Institute of Coimbra, ISEC, DEQB, Rua Pedro Nunes—Quinta da Nora, 3030-199 Coimbra, Portugal; (L.S.); (A.C.A.V.)
| | - Susana Dias
- Polytechnic Institute of Coimbra, Coimbra Agriculture School, Bencanta, 3045-601 Coimbra, Portugal; (S.D.); (M.H.)
- CERNAS, Research Centre for Natural Resources, Environment and Society, Coimbra Agriculture School, Bencanta, 3045-601 Coimbra, Portugal
| | - António M. Peres
- Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
| | - Ana C. A. Veloso
- Polytechnic Institute of Coimbra, ISEC, DEQB, Rua Pedro Nunes—Quinta da Nora, 3030-199 Coimbra, Portugal; (L.S.); (A.C.A.V.)
- CEB—Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4715-057 Braga, Portugal
- LABBELS—Associate Laboratory, Braga/Guimarães, Portugal
| | - Marta Henriques
- Polytechnic Institute of Coimbra, Coimbra Agriculture School, Bencanta, 3045-601 Coimbra, Portugal; (S.D.); (M.H.)
- CERNAS, Research Centre for Natural Resources, Environment and Society, Coimbra Agriculture School, Bencanta, 3045-601 Coimbra, Portugal
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Influence of genetic and interannual factors on bioactive compounds of olive pomace determined through a germplasm survey. Food Chem 2022; 378:132107. [PMID: 35032800 DOI: 10.1016/j.foodchem.2022.132107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/16/2021] [Accepted: 01/05/2022] [Indexed: 11/22/2022]
Abstract
Olive mill wastes, generated in the extraction of virgin olive oil (VOO), are of important concern for the industry owing to the produced volume and polluting load, mainly associated with the presence of organic compounds. Among them, it is worth mentioning bioactive compounds, mainly phenols and triterpenes, which could be potentially isolated for further use in the cosmetic, pharmaceutical, or food industries. This research analyzed the olive pomace after extraction of VOO from fruits harvested of 43 international olive cultivars during three consecutive seasons. The cultivar was identified as the most determinant factor to explain the variability in the relative concentration of phenols and terpenic acids in the extracts. In addition, the characterization of olive pomace extracts allowed clustering cultivars according to the profile of bioactive compounds. Finally, we identified the components responsible for the observed discrimination that was explained according to biosynthetic metabolic pathways.
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11
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Almeida PV, Rodrigues RP, Gaspar MC, Braga MEM, Quina MJ. Integrated management of residues from tomato production: Recovery of value-added compounds and biogas production in the biorefinery context. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 299:113505. [PMID: 34454202 DOI: 10.1016/j.jenvman.2021.113505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 07/30/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
The biorefinery approach must be boosted in the management of agro-residues in the future. The present study aims to investigate the valorization of tomato production residues, namely rotten tomato (unfit for consumption - RT), green tomato (GT), and tomato branches (TB). The assessment involves the recovery of value-added compounds through the extraction process followed by biogas production through anaerobic digestion. A thorough characterization of the three residues (RT, GT, and TB) was carried out, including the identification of volatile compounds by solid-phase microextraction (SPME) and gas chromatography/mass spectrometry (GC/MS). The volatiles analysis revealed the presence of flavor enhancer compounds and molecules with insecticidal properties. A solid-liquid extraction with ethanol allowed the recovery of value-added compounds in the extracts, in particular phenolic compounds, β-carotene, and lycopene, which contributed to the antioxidant activity. RT and TB extracts were found to be richer in total phenolic compounds (~27 mg GAE/gdb dry basis) and exhibited higher antioxidant activity (IC50 = 0.911 and 0.745 mg/mL). The tomato branches extract had the highest concentration of carotenoids with 37.23 and 3.08 mg/kgdb of β-carotene and lycopene, respectively. The biochemical methane potential (BMP) was assessed in sealed reactors operating in anaerobic conditions for all the raw (RT, GT, and TB) and extracted substrates waste (RTe, GTe, and TBe). While the BMP of RT and GT was in the range of 232-285 mL CH4/g VS, a lower value of 141 mL CH4/g VS was obtained for TB. The methane production for each pair of raw and extracted substrates (RT/RTe, GT/GTe, and TB/TBe) was considered statistically similar at a 95 % confidence level. Overall, the value-added compounds recovery through ethanolic extraction did not compromise the methane production of the materials.
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Affiliation(s)
- P V Almeida
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - R P Rodrigues
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - M C Gaspar
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - M E M Braga
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal.
| | - M J Quina
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal.
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12
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Simsek M, Süfer Ö. Olive pomace from olive oil processing as partial flour substitute in breadsticks: Bioactive, textural, sensorial and nutritional properties. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Meric Simsek
- Department of Food Engineering Osmaniye Korkut Ata University Osmaniye Turkey
| | - Özge Süfer
- Department of Food Engineering Osmaniye Korkut Ata University Osmaniye Turkey
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13
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Klisović D, Novoselić A, Režek Jambrak A, Brkić Bubola K. The utilisation solutions of olive mill by‐products in the terms of sustainable olive oil production: a review. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Dora Klisović
- Institute of Agriculture and Tourism Karla Huguesa 8 Porec\̌ Croatia
| | - Anja Novoselić
- Institute of Agriculture and Tourism Karla Huguesa 8 Porec\̌ Croatia
| | - Anet Režek Jambrak
- Faculty of Food Technology and Biotechnology Pierottijeva 6 Zagreb Croatia
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14
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Identification and Application of Bioactive Compounds from Garcinia xanthochymus Hook. for Weed Management. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11052264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The allelopathic potential of plant species and their related compounds has been increasingly reported to be biological tools for weed control. The allelopathic potential of Garcinia xanthochymus was assessed against several test plant species: lettuce, rapeseed, Italian ryegrass, and timothy. The extracts of G. xanthochymus leaves significantly inhibited all the test plants in a concentration- and species-specific manner. Therefore, to identify the specific compounds involved in the allelopathic activity of the G. xanthochymus extracts, assay-guided purification was carried out and two allelopathic compounds were isolated and identified as methyl phloretate {3-(4-hydroxyphenyl) propionic acid methyl ester} and vanillic acid (4-hydroxy-3-methoxybenzoic acid). Both of the substances significantly arrested the cress and timothy seedlings growth. I50 values (concentrations required for 50% inhibition) for shoots and roots growth of the cress and timothy were 113.6–104.6 and 53.3–40.5 μM, respectively, for methyl phloretate, and 331.6–314.7 and 118.8–107.4 μM, respectively, for vanillic acid, which implied that methyl phloretate was close to 3- and 2-fold more effective than vanillic acid against cress and timothy, respectively. This report is the first on the presence of methyl phloretate in a plant and its phytotoxic property. These observations suggest that methyl phloretate and vanillic acid might participate in the phytotoxicity of G. xanthochymus extract.
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15
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From Green Technology to Functional Olive Oils: Assessing the Best Combination of Olive Tree-Related Extracts with Complementary Bioactivities. Antioxidants (Basel) 2021; 10:antiox10020202. [PMID: 33573339 PMCID: PMC7912092 DOI: 10.3390/antiox10020202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 01/11/2023] Open
Abstract
Our aim was to assess the combination of olive tree-related extracts with the most favorable profile of in vitro bioactive properties. We tested the antioxidant (increment of low-density lipoprotein resistance against oxidation), vasoactive (promotion of nitric oxide release and decrease of endothelin-1 production in human umbilical vein endothelial cells), anti-inflammatory (decrease of the endothelial production of vascular cell adhesion molecule-1), and antithrombotic (reduction of the endothelial release of plasminogen activator inhibitor-1) capacities of six phenolic extracts and three triterpenic acid solutions (Ps and Ts, respectively). We tested extracts alone and in combination, at nutritional (Ps: 0.05–0.5 μmol/L; Ts: 0.001–0.1 μmol/L) and nutraceutical doses (Ps: 1–10 μmol/L; Ts: 0.25–10 μmol/L). The combination of Ps rich in 3,4-dihydroxyphenylglycol (76%, P2), hydroxytyrosol (95%, P3), and oleuropein (70%, P4) (final nutritional concentration: 0.15 μmol/L; final nutraceutical concentration: 3 μmol/L) was the best in order to prepare functional products and nutraceuticals with cardioprotective properties, despite the fact that the isolated extract with the greatest in vitro properties was P5 (75% oleocanthal), suggesting a potential synergistic effect among different olive components.
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16
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Technologies and Extraction Methods of Polyphenolic Compounds Derived from Pomegranate (Punica granatum) Peels. A Mini Review. Processes (Basel) 2021. [DOI: 10.3390/pr9020236] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The interest in using plant by-product extracts as functional ingredients is continuously rising due to environmental and financial prospects. The development of new technologies has led to the achievement of aqueous extracts with high bioactivity that is preferable due to organic solvents nonuse. Recently, widely applied and emerging technologies, such as Simple Stirring, Pressure-Applied Extraction, Enzymatic Extraction, Ultrasound-Assisted Extraction, Pulsed Electric Fields, High Hydrostatic Pressure, Ohmic Heating, Microwave Assistant Extraction and the use of “green” solvents such as the deep eutectic solvents, have been investigated in order to contribute to the minimization of disadvantages on the extraction of bioactive compounds. This review is focused on bioactive compounds derived from pomegranate (Punica granatum) peels and highlighted the most attractive extraction methods. It is believed that these findings could be a useful tool for the pomegranate juices industry to apply an effective and economically viable extraction process, transforming a by-product to a high added value functional product.
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17
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Estrella-González MJ, Suárez-Estrella F, Jurado MM, López MJ, López-González JA, Siles-Castellano AB, Muñoz-Mérida A, Moreno J. Uncovering new indicators to predict stability, maturity and biodiversity of compost on an industrial scale. BIORESOURCE TECHNOLOGY 2020; 313:123557. [PMID: 32512428 DOI: 10.1016/j.biortech.2020.123557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/15/2020] [Accepted: 05/17/2020] [Indexed: 06/11/2023]
Abstract
Currently, the metagenomic study of the composting process has gained great importance since it has allowed the identification of the existence of microorganisms that, until now, had not been isolated during the process by traditional techniques. However, it is still complex to determine which bioindicators could reveal the degree of maturity and stability of a particular compost. Thereby, the main objective of this work was to demonstrate the possible correlation between traditional parameters of maturity and stability of compost, with other indicators of biodiversity in products highly heterogeneous from composting processes on an industrial scale. The results demonstrated the enormous influence of the raw materials in characterizing the products obtained. Even so, important relationships were established between the Chao1 and Shannon indexes, and certain parameters related to the maturity, stability and toxicity of the samples, such as nitrification index, humification rate, phenolic content, germination index or oxygen consumption.
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Affiliation(s)
- M J Estrella-González
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain
| | - F Suárez-Estrella
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain.
| | - M M Jurado
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain
| | - M J López
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain
| | - J A López-González
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain
| | - A B Siles-Castellano
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain
| | - A Muñoz-Mérida
- CIBIO-InBIO, Universidade do Porto, Campus de Vairão, Rua Padre Armando Quintas, 4485-661 Vairão, Portugal
| | - J Moreno
- Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, 04120, CIAIMBITAL, Almería, Spain
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18
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Rob MM, Iwasaki A, Suenaga K, Ozaki K, Teruya T, Kato-Noguchi H. Potential use of Schumannianthus dichotomus waste: the phytotoxic activity of the waste and its identified compounds. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2020; 55:1099-1105. [PMID: 32964781 DOI: 10.1080/03601234.2020.1822716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The phytotoxic potential of the leaves and twigs of Schumannianthus dichotomus, discarded in the mat-making industry against four test plants (lettuce (Lactuca sativa L.), rapeseed (Brassica napus L.), foxtail fescue (Vulpia myuros (L.) C.C. Gmel.) and timothy (Phleum pratense L.)) was investigated and found strong phytotoxic activity. An assay-guided fractionation of S. dichotomus extarcts against cress (Lepidium sativum L.) through a series of column chromatography steps yielded two compounds, 8-(5-oxo-2,5-dihydrofuran-2-yl) octanoic acid (ODFO) and (E)-6-hydroxy-2,6-dimethylocta-2,7-dienoic acid (8-carboxylinalool). ODFO and 8-carboxylinalool showed strong phytotoxic activity against cress and timothy. The concentrations required for 50% growth inhibition (I50 value) of the seedlings of cress and timothy were 111.94-128.01 and 36.30-91.75 µM, respectively, for ODFO, but the values were much higher at 315.98-379.13 and 107.92-148.41 µM, respectively, for 8-carboxylinalool, indicating the stronger phytotoxic activity of ODFO. This study is the first to isolate ODFO and 8-carboxylinalool from S. dichotomus and their phytotoxic potential while ODFO is firstly encountered from any natural source. The growth inhibitory activity of the identified compounds may explain their role in the phytotoxic activity of S. dichotomus, which suggests the possible use of its leaves and twigs or its active constituents as natural bioherbicides.
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Affiliation(s)
- Md Mahfuzur Rob
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Japan
- The United Graduate School of Agricultural Sciences, Ehime University, Matsuyama, Japan
| | - Arihiro Iwasaki
- Department of Chemistry, Faculty of Science and Technology, Keio University, Kohoku, Japan
| | - Kiyotake Suenaga
- Department of Chemistry, Faculty of Science and Technology, Keio University, Kohoku, Japan
| | - Kaori Ozaki
- Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Japan
| | - Toshiaki Teruya
- Faculty of Education, University of the Ryukyus, Nishihara, Japan
| | - Hisashi Kato-Noguchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Japan
- The United Graduate School of Agricultural Sciences, Ehime University, Matsuyama, Japan
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19
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Bandarra BS, Gomes LA, Pereira JL, Gonçalves FJM, Martins RC, Quina MJ. Assessment of hazardous property HP 14 using ecotoxicological tests: a case study of weathered coal fly ash. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:20972-20983. [PMID: 32253696 DOI: 10.1007/s11356-020-08515-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
The classification of wastes regarding hazardous property HP 14 (ecotoxicity) is essential for proper waste management. In the EU, HP 14 has been estimated based on waste chemical composition rather than using biotests, and guidelines for experimental assessment are still lacking. This study aims at evaluating the potential ecotoxicological impacts of weathered coal fly ash (CFA) from a landfill, as a case study to assess the current EU methodology used to classify wastes regarding HP 14. A large amount of CFA is still landfilled, but its valorisation would be of interest. The analysis was based on the chemical composition of CFA (in ClassifyMyWaste software), and on a battery of five biotests applied to eluates, with Lepidium sativum, Aliivibrio fischeri, Raphidocelis subcapitata, Lemna minor and Daphnia magna. Through chemical analysis, most of the simulations with data from the literature indicated "Possible Hazard", including the sample of this work. Biotests revealed low impairment for most endpoints. D. magna was the most sensitive organism, but the inhibitory effect was significantly reduced after pH adjustment of the eluate. The test with A. fischeri does not seem to be adequate to assess CFA due to the high variability observed in results. The methodology involving a simple battery of bioassays was proven to be enlightening, providing relevant results for HP 14 assessment. The chosen battery of biotests (excluding the A. fischeri test) may be a good starting point to represent the aquatic environment in this context. In short, it seems that weathered CFA can be considered non-hazardous, and therefore the material under analysis could be valorised in practical applications without significant ecotoxic effect on the environment.
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Affiliation(s)
- Beatriz S Bandarra
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Luciano A Gomes
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal
- IFB - Federal Institute of Education, Science and Technology of Brasília - IFB, Campus Ceilandia, Brasilia, Federal District, Brazil
| | - Joana L Pereira
- Department of Biology, CESAM - Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Fernando J M Gonçalves
- Department of Biology, CESAM - Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Rui C Martins
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Margarida J Quina
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal.
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20
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Gomes LA, Santos AF, Góis JC, Quina MJ. Thermal dehydration of urban biosolids with green liquor dregs from pulp and paper mill. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 261:109944. [PMID: 32148252 DOI: 10.1016/j.jenvman.2019.109944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/19/2019] [Accepted: 11/28/2019] [Indexed: 06/10/2023]
Abstract
This study aims to investigate the sewage sludge (SS) drying process by incorporating a by-product formed in the pulp and paper industry (green liquor dregs - GLD) as drying adjuvant. Through an innovative approach, the drying kinetics was modelled, and the final dried product was tested for soil applications. After the characterization phase, small cylinders of SS without and with 0.15 g GLD g SS-1wb (SS_GLD) were dried in isothermal conditions at 70, 100, and 130 °C. The experimental data were fitted by Fick's second law and thin-layer models, and good results were achieved in both cases (R2 > 0.98 and RMSE <0.05). Although only a slight improvement was observed, the best conditions for drying biosolids were found with the addition of GLD at 130 °C, where the drying rate was 30.88 gH2O kg-1 SSwb min-1. In this condition, a decrease of 8% in the energy required for moisture evaporation was observed. Regarding the phytotoxicity tests with Lepidium sativum L. (garden cress), 60% improvement in EC50 was noticed for the sample with GLD when compared to the raw SS. The dried product SS_GLD complied with the regulations for soil applications regarding the potentially toxic metals (Cr, Ni, Cu, Pb, Zn, and Cd), and promoted an increase in soil organic matter and pH. However, further and in-depth studies should be conducted to assess the potential of SS_GLD application in agricultural soil.
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Affiliation(s)
- Luciano A Gomes
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal; IFB - Federal Institute of Education, Science, and Technology of Brasília - IFB, Campus Ceilândia Brasília - Federal District, Brazil.
| | - Andreia F Santos
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal
| | - José C Góis
- Association for the Development of Industrial Aerodynamics, Department of Mechanical Engineering, University of Coimbra, Coimbra, Portugal
| | - Margarida J Quina
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal
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21
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Enaime G, Baçaoui A, Yaacoubi A, Belaqziz M, Wichern M, Lübken M. Phytotoxicity assessment of olive mill wastewater treated by different technologies: effect on seed germination of maize and tomato. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:8034-8045. [PMID: 31897978 DOI: 10.1007/s11356-019-06672-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 10/01/2019] [Indexed: 06/10/2023]
Abstract
The phytotoxicity effect of olive mill wastewater (OMWW) treated in a combined system regrouping pretreatment by filtration on olive stones and coagulation-flocculation, and anaerobic digestion (AD) on seed germination of maize and tomato was evaluated through germination tests in petri dishes and growth tests in pots. Three samples, referenced as AD-40, AD-60, and AD-80, were collected from the anaerobic reactor operating with an influent at 40, 60, and 80% OMWW/water (% v/v). Concentrations between 25 and 100% were used for maize and between 5 and 25% were used for tomato using raw and pretreated samples, while anaerobic samples were used without dilution. For maize, 100% and 75% OMWW were very phytotoxic and completely prohibited seed germination, while phytotoxicity was decreased following dilution at 25% and 50% OMWW. Maize germinability was found highly enhanced when watered with anaerobic samples. For tomato, high dilution was required to reduce the phytotoxicity of raw and pretreated OMWW and a high relative germination percentage was registered at 5, 10, and 15% OMWW, while for samples anaerobically treated, a high phytotoxicity is still observed. Growth tests, showed more favorable results for maize watered with raw and pretreated samples at 25% OMWW and with biological samples. For tomato and with the exception of 25% OMWW and AD-80, seeds respond positively to all samples. It was concluded that if the OMWW will be used for irrigating maize, it could be directly used after anaerobic digestion, while for tomato further dilution is required. The phenolic profile analysis of the tested samples coupled with the results of the germination tests showed that the OMWW phytotoxicity appears to be determined by not only the monomeric phenols but also by other toxic components unaffected by the applied treatments.
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Affiliation(s)
- Ghizlane Enaime
- Laboratory of Applied Chemistry, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P 2390, Marrakech, Morocco.
| | - Abdelaziz Baçaoui
- Laboratory of Applied Chemistry, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P 2390, Marrakech, Morocco
| | - Abdelrani Yaacoubi
- Laboratory of Applied Chemistry, Unity of Methodology and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, B.P 2390, Marrakech, Morocco
| | - Majdouline Belaqziz
- Polyvalent Laboratory of Research and Development, Polydisciplinary Faculty, Sultan Moulay Slimane University, Béni Mellal, Morocco
| | - Marc Wichern
- Institute of Urban Water Management and Environmental Engineering, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Manfred Lübken
- Institute of Urban Water Management and Environmental Engineering, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany
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22
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Phytotoxic Activity and Identification of Phytotoxic Substances from Schumannianthus dichotomus. PLANTS 2020; 9:plants9010102. [PMID: 31947649 PMCID: PMC7020185 DOI: 10.3390/plants9010102] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 11/16/2022]
Abstract
The phytotoxic potential of plants and their constituents against other plants is being increasingly investigated as a possible alternative to synthetic herbicides to control weeds in crop fields. In this study, we explored the phytotoxicity and phytotoxic substances of Schumannianthus dichotomus, a perennial wetland shrub native to Bangladesh, India, and Myanmar. Leaf extracts of S. dichotomus exerted strong phytotoxicity against two dicot species, alfalfa and cress, and two monocot species, barnyard grass and Italian ryegrass. A bioassay-driven purification process yielded two phenolic derivatives, syringic acid and methyl syringate. Both constituents significantly inhibited the growth of cress and Italian ryegrass in a concentration-dependent manner. The concentrations required for 50% growth inhibition (I50 value) of the shoot and root growth of cress were 75.8 and 61.3 μM, respectively, for syringic acid, compared with 43.2 and 31.5 μM, respectively, for methyl syringate. Similarly, to suppress the shoot and root growth of Italian rye grass, a greater amount of syringic acid (I50 = 213.7 and 175.9 μM) was needed than methyl syringate (I50 = 140.4 to 130.8 μM). Methyl syringate showed higher phytotoxic potential than syringic acid, and cress showed higher sensitivity to both substances. This study is the first to report on the phytotoxic potential of S. dichotomus and to identify phytotoxic substances from this plant material.
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23
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Jimenez-Lopez C, Fraga-Corral M, Carpena M, García-Oliveira P, Echave J, Pereira AG, Lourenço-Lopes C, Prieto MA, Simal-Gandara J. Agriculture waste valorisation as a source of antioxidant phenolic compounds within a circular and sustainable bioeconomy. Food Funct 2020; 11:4853-4877. [DOI: 10.1039/d0fo00937g] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Agro-food industrial waste is currently being accumulated, pushing scientists to find recovery strategies to obtain bioactive compounds within a circular bioeconomy. Target phenolic compounds have shown market potential by means of optimization extraction techniques.
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Affiliation(s)
- C. Jimenez-Lopez
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - M. Fraga-Corral
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - M. Carpena
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - P. García-Oliveira
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - J. Echave
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - A. G. Pereira
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - C. Lourenço-Lopes
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - M. A. Prieto
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - J. Simal-Gandara
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
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Hong N, Liu A, Zhu P, Zhan Y, Yang M, Zhang Z, Yang B, Guan Y. Comparative toxicity of organic mixture attached to road deposited sediments: Inadequacy of conventionally using individual pollutants to assess comprehensive hazard effects. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:357-365. [PMID: 31102843 DOI: 10.1016/j.ecoenv.2019.05.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/07/2019] [Accepted: 05/09/2019] [Indexed: 06/09/2023]
Abstract
Organic pollutants attached on road deposited sediments (RDS) during dry days can be washed-off into stormwater runoff during rainfall events, undermining stormwater reuse safety. Previous research studies commonly utilized individual pollutant groups and their quantity to evaluate the hazard effect of pollutants attached to RDS in terms of stormwater reuse. Since many types of organic pollutants are present together rather than individually, conventional approaches might not permit a comprehensive understanding of how appropriately the RDS polluted stormwater can be reused. This study undertook a toxicity test of organic pollutants attached to RDS using Chinese hamster ovary cells (CHO), testing a hypothesis that solely focusing on individual pollutant groups are not adequate to represent hazard effects of resulting stormwater and hence their adequacy for reuse. It is noted that comparative toxicity of RDS is not strongly related to total solids (commonly seen as the key carrier of pollutants) and chemical oxygen demand (COD, representing organic matters). Additionally, the comparison results of spatial distributions of toxicity (in this study) and individual pollutants in previous studies did not show a similar trend. These results imply that toxicity should be also used to indicate how stormwater can be safely reused while solely investigating individual pollutants can not adequately show a comprehensive hazard effect in terms of ensuring stormwater reuse safety. Based on study outcomes, a new assessment approach considering both pollutant and toxicity were proposed. This will assist on effective stormwater reuse and ensuring their reuse safety.
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Affiliation(s)
- Nian Hong
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060, Shenzhen, China
| | - An Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060, Shenzhen, China.
| | - Panfeng Zhu
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China
| | - Yuting Zhan
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060, Shenzhen, China
| | - Mengting Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060, Shenzhen, China.
| | - Zhenxuan Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060, Shenzhen, China
| | - Bo Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, 518060, Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060, Shenzhen, China
| | - Yuntao Guan
- Guangdong Provincial Engineering Technology Research Centre for Urban Water Cycle and Water Environment Safety, Graduate School at Shenzhen, Tsinghua University, 518055, Shenzhen, China
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Fregolente LG, Miguel TBAR, de Castro Miguel E, de Almeida Melo C, Moreira AB, Ferreira OP, Bisinoti MC. Toxicity evaluation of process water from hydrothermal carbonization of sugarcane industry by-products. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:27579-27589. [PMID: 29594880 DOI: 10.1007/s11356-018-1771-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
Hydrothermal carbonization (HTC) is a thermochemical process carried out in an aqueous medium. It is capable of converting biomass into a solid, carbon-rich material (hydrochar), and producing a liquid phase (process water) which contains the unreactive feedstock and/or chemical intermediates from the carbonization reaction. The aim of this study was to evaluate the characteristics of process water generated by HTC from vinasse and sugarcane bagasse produced by sugarcane industry and to evaluate its toxicity to both marine (using Artemia salina as a model organism) and the terrestrial environment (through seed germination studies of maize, lettuce, and tomato). The experiments showed that concentrated process water completely inhibited germination of maize, lettuce, and tomato seeds. On the other hand, diluted process water was able to stimulate seedlings of maize and tomato and enhance root and shoot growth. For Artemia, the LC50 indicated that the process water is practically non-toxic; however, morphological changes, especially damages to the digestive tube and antennas of Artemia, were observed for the concentration of 1000 mg C L-1.
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Affiliation(s)
- Laís Gomes Fregolente
- Departamento de Química e Ciências Ambientais, Laboratório de Estudos em Ciências Ambientais, Instituto de Biociências, Letras e Ciências Exatas, UNESP, Universidade Estadual Paulista, Campus São José do Rio Preto, Cristóvão Colombo Street, 2256, São José do Rio Preto, São Paulo State, 15054-000, Brazil
| | - Thaiz Batista Azevedo Rangel Miguel
- Laboratório de Materiais Funcionais Avançados (LaMFA), Departamento de Física, Universidade Federal do Ceará, P.O. Box 6030, Fortaleza, Ceará State, 60455-900, Brazil
| | - Emilio de Castro Miguel
- Central Analítica, Universidade Federal do Ceará, P.O. Box 6030, Fortaleza, Ceará State, 60455-900, Brazil
| | - Camila de Almeida Melo
- Departamento de Química e Ciências Ambientais, Laboratório de Estudos em Ciências Ambientais, Instituto de Biociências, Letras e Ciências Exatas, UNESP, Universidade Estadual Paulista, Campus São José do Rio Preto, Cristóvão Colombo Street, 2256, São José do Rio Preto, São Paulo State, 15054-000, Brazil
| | - Altair Benedito Moreira
- Departamento de Química e Ciências Ambientais, Laboratório de Estudos em Ciências Ambientais, Instituto de Biociências, Letras e Ciências Exatas, UNESP, Universidade Estadual Paulista, Campus São José do Rio Preto, Cristóvão Colombo Street, 2256, São José do Rio Preto, São Paulo State, 15054-000, Brazil
| | - Odair Pastor Ferreira
- Laboratório de Materiais Funcionais Avançados (LaMFA), Departamento de Física, Universidade Federal do Ceará, P.O. Box 6030, Fortaleza, Ceará State, 60455-900, Brazil
| | - Márcia Cristina Bisinoti
- Departamento de Química e Ciências Ambientais, Laboratório de Estudos em Ciências Ambientais, Instituto de Biociências, Letras e Ciências Exatas, UNESP, Universidade Estadual Paulista, Campus São José do Rio Preto, Cristóvão Colombo Street, 2256, São José do Rio Preto, São Paulo State, 15054-000, Brazil.
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Gomes LA, Gabriel N, Gando-Ferreira LM, Góis JC, Quina MJ. Analysis of potentially toxic metal constraints to apply sewage sludge in Portuguese agricultural soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:26000-26014. [PMID: 31273658 DOI: 10.1007/s11356-019-05796-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 06/19/2019] [Indexed: 06/09/2023]
Abstract
The application of sewage sludge (SS) in the soil can be a valuable way to increase its content of organic matter. However, the concentration of potentially toxic metal (PTM) in both SS and soil can hinder this route of management. Thus, the main objective of this work was to evaluate the compliance with the restrictions related to PTM contained in SS from wastewater treatment plants (WWTP) for agricultural land application. The regulatory constraints associated with SS and soil in respect to PTM (Cd, Cr, Cu, Ni, Pb, and Zn) were analyzed. These metals showed a deleterious effect on germination of Lepidium sativum seeds, and their phytotoxicity may be ranked as Cd > Cu > Cr(VI) > Cr(III) ~ Zn ~ Ni > Pb. Portuguese SS samples from different WWTP, from a national sludge management operator, and from the literature were considered. The results revealed that the content of these metals, in general, complies with the regulatory threshold values. The content of PTM in the soil is not restrictive to receive SS in at least 90% of the national territory. The assessment of ecological risk based on the geoaccumulation index (Igeo), pollution index (PI), and potential ecological risk index (PERI) showed low risk for all metals. The exception was Igeo of Cd, Cu, and Zn, which presented moderate to high level of pollution. According to the state of the art, no significant negative impacts have been detected on human health and the environment due to SS applications in the soil. Thus, in a country with low carbon content in the land and whenever compliance with regulations is achieved, the main route for SS management may be agricultural soil.
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Affiliation(s)
- Luciano A Gomes
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal
- IFB - Federal Institute of Education, Science and Technology of Brasília - IFB, Campus Ceilândia, Brasília, Federal District, Brazil
| | - Nuno Gabriel
- SS Bioenergias, Carvalhais, Figueira da Foz, Portugal
| | - Licínio M Gando-Ferreira
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal
| | - José C Góis
- Association for the Development of Industrial Aerodynamics, Department of Mechanical Engineering, University of Coimbra, Coimbra, Portugal
| | - Margarida J Quina
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal.
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Chiarelotto M, Damaceno FM, Lorin HEF, Tonial LMS, de Mendonça Costa LA, Bustamante MA, Moral R, Marhuenda-Egea FC, Costa MSSM. Reducing the composting time of broiler agro-industrial wastes: The effect of process monitoring parameters and agronomic quality. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 96:25-35. [PMID: 31376967 DOI: 10.1016/j.wasman.2019.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 06/16/2019] [Accepted: 07/05/2019] [Indexed: 06/10/2023]
Abstract
The aim of this study was to evaluate the effect of considering different composting times on compost quality before the end of the bio-oxidative phase and after the maturation and storage phases. This study may provide useful information to optimize the composting process and increase the economic feasibility of the technology and its adoption without decreasing the quality of the end-product. In this study, three composts were prepared using chicken meat processing wastes mixed with urban tree trimmings, serving as a bulking agent, to evaluate the effect of reducing the durations of the bio-oxidative phase and the maturity stage on the different physico-chemical properties. Specifically, we evaluate water-soluble organic matter transformations by using excitation-emission matrix (EEM) fluorescence spectroscopy. The obtained results have shown that a composting time of 35 days combined with eight turnings was efficient for achieving the standard process control parameters for agro-industrial waste composting in the studied conditions and allowed for the production of stable and mature compost that is suitable for agricultural use.
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Affiliation(s)
- M Chiarelotto
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Cascavel, Paraná, Brazil
| | - F M Damaceno
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Cascavel, Paraná, Brazil
| | - H E F Lorin
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Cascavel, Paraná, Brazil
| | - L M S Tonial
- Academic Department of Chemistry, Federal Technological University of Paraná (UTFPR), Pato Branco, Paraná, Brazil
| | - L A de Mendonça Costa
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Cascavel, Paraná, Brazil
| | - M A Bustamante
- Department of Agrochemistry and Environment, Miguel Hernandez University, EPS-Orihuela, ctra Beniel Km 3.2, 03312 Orihuela, Alicante, Spain.
| | - R Moral
- Department of Agrochemistry and Environment, Miguel Hernandez University, EPS-Orihuela, ctra Beniel Km 3.2, 03312 Orihuela, Alicante, Spain.
| | - F C Marhuenda-Egea
- Department of Agrochemistry and Biochemistry, University of Alicante, P.O.Box 99, E-03080 Alicante, Spain.
| | - M S S M Costa
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Cascavel, Paraná, Brazil.
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28
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Catalytic Efficiency of Red Mud for the Degradation of Olive Mill Wastewater through Heterogeneous Fenton’s Process. WATER 2019. [DOI: 10.3390/w11061183] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Olive mill wastewater is a challenging effluent, especially due to its toxicity related to the presence of phenolic compounds. Fenton’s process was analysed on the abatement of phenolic acids typically found in this kind of effluents. To overcome the main drawback of Fenton’s process, a waste from the aluminium industry commonly called red mud was used as a heterogeneous source of iron. The adsorption of simulated effluent on the red mud was negligible. Therefore, the degradation of phenolic acids during Fenton’s process was due to oxidation by hydroxyl radicals. The amount of red mud and hydrogen peroxide were optimized regarding phenolic acids degradation. The optimal conditions leading to the highest removal of contaminants (100% of phenolic acids degradation and 25% of mineralization after 60 min of reaction) were 1 g/L of catalyst and 100 mg/L of hydrogen peroxide. The possibility of recovering treated water for agricultural purposes was evaluated by assessing the toxic impact over a wide range of species. The toxicity observed for the treated samples was mainly related to the residual hydrogen peroxide remaining after treatment.
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Leiva AM, Albarrán A, López D, Vidal G. Evaluation of phytotoxicity of effluents from activated sludge and constructed wetland system for wastewater reuse. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 79:656-667. [PMID: 30975932 DOI: 10.2166/wst.2019.093] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The aim of this study was to evaluate the phytotoxicity of wastewater treated with horizontal subsurface flow (HSSF) constructed wetlands (CWs) and activated sludge (AS) system using disinfection treatment such chlorination and ultraviolet (UV) system. To assess the impact of the reuse of different effluents (HSSF-Cl, HSSF-UV, AS-Cl and AS-UV), bioassays using seeds of Raphanus sativus (R. sativus) and Triticum aestivum (T. aestivum), were performed on both Petri dishes and soil. Different treated wastewater concentrations were varied (6.25%, 12.5%, 25%, 50% and 100%) and the percentage of germination inhibition (PGI), percentage of epicotyl elongation (PEE) and germination index (GI) were determined. Positive effects (PGI and PEE <0% and GI >80%) of HSSF-Cl, HSSF-UV, AS-Cl and AS-UV effluents on germination and epicotyl elongation of R. sativus and T. aestivum were observed in Petri dishes bioassays. However, toxic effects of HSSF-Cl, HSSF-UV and AS-Cl on seeds germination and epicotyl elongation of both plant species were detected in soil samples (PGI and PEE >0% and GI <80%). Only R. sativus seeds to be irrigated with AS-UV achieved GI values above 86% for all concentrations evaluated. These results indicated that AS-UV effluent had a positive effect on seeds germination and can be recommended for treated wastewater reuse in agricultural irrigation.
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Affiliation(s)
- Ana María Leiva
- Engineering and Environmental Biotechnology Group, Environmental Science Faculty & EULA-Chile Center, Universidad de Concepción, Concepción, Chile E-mail:
| | - Adrián Albarrán
- Engineering and Environmental Biotechnology Group, Environmental Science Faculty & EULA-Chile Center, Universidad de Concepción, Concepción, Chile E-mail:
| | - Daniela López
- Engineering and Environmental Biotechnology Group, Environmental Science Faculty & EULA-Chile Center, Universidad de Concepción, Concepción, Chile E-mail:
| | - Gladys Vidal
- Engineering and Environmental Biotechnology Group, Environmental Science Faculty & EULA-Chile Center, Universidad de Concepción, Concepción, Chile E-mail:
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Abstract
Olive mill wastewaters (OMW) constitute an environmental problem affecting mainly Mediterranean Sea area countries where the olive mill industry is a very important economic sector. The strong impact and management issues of these effluents are mainly due to their seasonality, localized production, and high organic load with high toxic features and low biodegradability. As the olive oil industry is highly water demanding, the search for suitable water recovery strategies requires the development and optimization of advanced treatment technologies. The classical Fenton’s process is an interesting alternative, as it operates at room conditions of pressure and temperature. However, it shows some drawbacks, such as the generation of iron sludges, which require further management. Nevertheless, because of its features that make it industrially desirable, overcoming these limitations has been the focus of researchers in the last years. Bearing this in mind, this paper focuses on the recent research regarding OMW treatment using Fenton’s process. The use of Fenton’s peroxidation treatment at homogenous, heterogeneous, and photo-aided conditions is analysed. The use of solid catalysts may be an interesting way to avoid sludge formation. Light-driven Fenton can also reduce the amount of iron needed for effective degradation. Moreover, Fenton’s process integration in combined treatment schemes is discussed. Finally, remarks regarding its application at full scale are given.
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Zhang Z, Zhao Y, Wang R, Lu Q, Wu J, Zhang D, Nie Z, Wei Z. Effect of the addition of exogenous precursors on humic substance formation during composting. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 79:462-471. [PMID: 30343776 DOI: 10.1016/j.wasman.2018.08.025] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
The aim of this work was to explore the effect of the addition of exogenous precursors on humic substance (HS) formation during composting. HS formation is a complex biochemical process that occurs during composting. In addition, HS precursors and bacterial communities were recognized as the key factors that affect HS formation. The addition of exogenous precursors can promote the humification process during composting, but few studies have explored the potential relationships between the proportion of additional exogenous precursors, the bacterial community and HS formation. Jointly adding benzoic acid (BA) and soybean residue after extracted oil (SR) treatment can promote HS formation, especially humic acid formation. In addition, the increase in the proportion of exogenous precursors added could strengthen the relationship among different precursors, thereby changing the bacterial community composition and further promoting the humification process during composting. In addition, a structural equation model (SEM) showed that precursors were the key factors to regulate HS formation and certain bacteria as the direct drivers to affect HS formation. This model provides more possibilities to regulate HS formation during composting and enhances its potential applicability under real conditions.
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Affiliation(s)
- Zhechao Zhang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yue Zhao
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Ruoxi Wang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Qian Lu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Junqiu Wu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Duoying Zhang
- School of Civil Engineering, Heilongjiang University, Harbin 150080, China
| | - Zhuanfang Nie
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Zimin Wei
- College of Life Science, Northeast Agricultural University, Harbin 150030, China.
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