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Saleem I, Sheikh A, Khan AY, Ahmed S, Abbas M. Physicochemical properties of ammonium acetate / propionic acid as a novel deep eutectic solvent and its binary mixtures with water in (298.15-353.15) K range. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124144. [PMID: 38508073 DOI: 10.1016/j.saa.2024.124144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 02/13/2024] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
Emergence of deep eutectic solvents as potential replacements for volatile organic solvents has attracted interest of the scientific community in diverse fields of applications. Compared to ionic liquids, which exhibit similarity in many respects with this new class of green solvents, deep eutectic solvents (DESs) show low toxicity, and are easy to prepare from cheap and abundantly available starting materials. Knowledge of physicochemical properties of DESs is a prerequisite for their safe applications in technological fields and to understand the nature of interactions present in these systems. Although physicochemical properties of choline chloride based DESs are widely investigated, similar information on ammonium acetate based DESs is scant. In this work, a novel ammonium acetate/propionic acid deep eutectic solvent (AA/PA DES) is reported which is prepared by mixing ammonium acetate (AA) and propionic acid (PA) in the 1:3 mol ratio and characterized by FTIR, 1H and 13C NMR, TGA and DSC techniques. The density (ρ), sound velocity (u), viscosity (η) and conductivity (κ) of the pure DES and its binary mixtures with water are investigated over the entire composition range and temperatures (298.15-353.15) K. The excess properties, VmE, KSE, Δη, and ΔG*E are calculated and corelated using Redlich-Kister equation (RKE). Temperature dependence of conductivity and viscosity is satisfactorily described by the Vogel - Fulcher - Tamman (VFT) equation rather than Arrhenius equation. The pure DES shows a wide electrochemical potential window ranging from - 1000 mV to + 1000 mV, which coupled with its better solubilizing characteristics, could be exploited for electrochemical work.
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Affiliation(s)
- Iqra Saleem
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan
| | - Aafia Sheikh
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan; Department of Chemistry, Government College Women University, Sialkot, Pakistan
| | - Athar Yaseen Khan
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan.
| | - Safeer Ahmed
- Department of Chemistry, Quid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Abbas
- Department of Chemistry, Forman Christian College (A Chartered University), Lahore, Pakistan
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Kemboi D, Antonissen G, Ochieng P, Croubels S, De Baere S, Scippo ML, Okoth S, Kangethe E, Faas J, Doupovec B, Lindahl J, Gathumbi J. Efficacy of Bentonite and Fumonisin Esterase in Mitigating the Effects of Aflatoxins and Fumonisins in Two Kenyan Cattle Breeds. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2143-2151. [PMID: 36649058 DOI: 10.1021/acs.jafc.2c08217] [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: 06/17/2023]
Abstract
The objective of the study was to investigate the efficacy of bentonite and fumonisin esterase, separately or combined, in mitigating the effects of aflatoxins (AF) and fumonisins (FUM) in Boran and Friesian-Boran crossbreed cattle. These effects were studied by measuring mycotoxins, their metabolites, and biomarkers that relate to animal health, productivity, and food safety. The study was divided into three experiments each lasting for 2 weeks. Cows in experiment 1 received in random order aflatoxin B1 (AFB1) [788 μg/cow/day (69.7 μg/kg dry matter intake (DMI)) for Borans and 2,310 μg/cow/day (154 μg/kg DMI) for crossbreeds], bentonite (60 g/cow/day), or both AFB1 and bentonite. Boran cows in experiment 2 received in random order FUM (12.4 mg/cow/day (1.1 mg/kg DMI)), fumonisin esterase (120 U/cow/day), or both FUM and fumonisin esterase. Boran cows in experiment 3 received in random order AFB1 (952 μg/cow/day (84.2 μg/kg DMI)) + FUM (30.4 mg/cow/day (2.7 mg/kg DMI)), bentonite (60 g/cow/day) + fumonisin esterase (120 U/cow/day), or both AFB1 + FUM and bentonite + fumonisin esterase. Feeding AFB1 and/or FUM contaminated feed with or without the addition of the detoxifiers for 14 days did not affect DMI, milk composition, hematology, and blood biochemical parameters. The addition of bentonite in a diet contaminated with AFB1 led to a decrease in milk aflatoxin M1 (AFM1) concentration of 30% and 43%, with the carry-over subsequently decreasing from 0.35% to 0.20% and 0.08% to 0.06% for crosses and Borans, respectively. No significant change was observed in the sphinganine/sphingosine (Sa/So) ratio following feeding with FUM alone or in combination with fumonisin esterase; however, the ability of fumonisin esterase to hydrolyze FUM into less toxic fully hydrolyzed FUM and partially hydrolyzed FUM was evident in the rumen fluid and feces. These results indicate bentonite was effective in decreasing AFM1 concentration in milk, and AFB1 and AFM1 in plasma, while fumonisin esterase can convert FUM into less toxic metabolites and can be a suitable addition to feed cocontaminated with AFB1 and FUM.
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Affiliation(s)
- David Kemboi
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
- Department of Veterinary Pathology, Microbiology, and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O Box 29053, Nairobi 00100, Kenya
- Department of Animal Science, Chuka University, P.O Box 109-00625, Chuka 00625, Kenya
| | - Gunther Antonissen
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
- Chair Poultry Health Sciences, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
| | - Phillis Ochieng
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
- Department of Food Sciences, Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem 10, Liège 4000, Belgium
| | - Siska Croubels
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
| | - Siegrid De Baere
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium
| | - Marie-Louise Scippo
- Department of Food Sciences, Faculty of Veterinary Medicine, University of Liège, Avenue de Cureghem 10, Liège 4000, Belgium
| | - Sheila Okoth
- Department of Biology, Faculty of Science and Technology, University of Nairobi, P.O Box 30197 Nairobi 00100, Kenya
| | | | - Johannes Faas
- DSM-BIOMIN Research Center, Technopark 1, Tulln 3430, Austria
| | | | - Johanna Lindahl
- International Livestock Research Institute (ILRI), P.O Box 30709, Nairobi 00100, Kenya
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala SE-751 05, Sweden
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala SE-750 07, Sweden
| | - James Gathumbi
- Department of Veterinary Pathology, Microbiology, and Parasitology, Faculty of Veterinary Medicine, University of Nairobi, P.O Box 29053, Nairobi 00100, Kenya
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Damato A, Vianello F, Novelli E, Balzan S, Gianesella M, Giaretta E, Gabai G. Comprehensive Review on the Interactions of Clay Minerals With Animal Physiology and Production. Front Vet Sci 2022; 9:889612. [PMID: 35619608 PMCID: PMC9127995 DOI: 10.3389/fvets.2022.889612] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Clay minerals are naturally occurring rock and soil materials primarily composed of fine-grained aluminosilicate minerals, characterized by high hygroscopicity. In animal production, clays are often mixed with feed and, due to their high binding capacity towards organic molecules, used to limit animal absorption of feed contaminants, such as mycotoxins and other toxicants. Binding capacity of clays is not specific and these minerals can form complexes with different compounds, such as nutrients and pharmaceuticals, thus possibly affecting the intestinal absorption of important substances. Indeed, clays cannot be considered a completely inert feed additive, as they can interfere with gastro-intestinal (GI) metabolism, with possible consequences on animal physiology. Moreover, clays may contain impurities, constituted of inorganic micronutrients and/or toxic trace elements, and their ingestion can affect animal health. Furthermore, clays may also have effects on the GI mucosa, possibly modifying nutrient digestibility and animal microbiome. Finally, clays may directly interact with GI cells and, depending on their mineral grain size, shape, superficial charge and hydrophilicity, can elicit an inflammatory response. As in the near future due to climate change the presence of mycotoxins in feedstuffs will probably become a major problem, the use of clays in feedstuff, given their physico-chemical properties, low cost, apparent low toxicity and eco-compatibility, is expected to increase. The present review focuses on the characteristics and properties of clays as feed additives, evidencing pros and cons. Aims of future studies are suggested, evidencing that, in particular, possible interferences of these minerals with animal microbiome, nutrient absorption and drug delivery should be assessed. Finally, the fate of clay particles during their transit within the GI system and their long-term administration/accumulation should be clarified.
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Affiliation(s)
- Anna Damato
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
| | - Fabio Vianello
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
| | - Enrico Novelli
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
| | - Stefania Balzan
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
| | - Matteo Gianesella
- Department of Animal Medicine, Production and Health, University of Padua, Padua, Italy
| | - Elisa Giaretta
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
- *Correspondence: Elisa Giaretta
| | - Gianfranco Gabai
- Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
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Mantovani A, Aquilina G, Cubadda F, Marcon F. Risk-Benefit Assessment of Feed Additives in the One Health Perspective. Front Nutr 2022; 9:843124. [PMID: 35223963 PMCID: PMC8866873 DOI: 10.3389/fnut.2022.843124] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/19/2022] [Indexed: 02/03/2023] Open
Abstract
Safety and sustainability of animal feeds is a pillar of the safety of the entire food chain. Feed additive assessment incorporates consumer safety as well as animal health and welfare, which, in turn, can affect productivity and hence food security. The safety of feed users and the environment are other important components of the assessment process which, therefore, builds on a One Health perspective. In several instances the assessment entails a balanced assessment of benefits and risks for humans, animals and/or the environment. Three case studies are selected to discuss issues for a consistent framework on Risk-Benefit Assessment (RBA) of feed additives, based on EFSA opinions and literature: (a) Supplementation of feeds with trace elements with recognized human toxicity (cobalt, iodine) - RBA question: can use levels, hence human exposure, be reduced without increasing the risk of deficiency in animals?; (b) Aflatoxin binders in dairy animals - RBA question: can the use reduce the risk for human health due to aflatoxin M1, without unexpected adverse effects for animals or humans?; (c) Use of formaldehyde as preservative in feedstuffs to prevent microbial contamination - RBA question: is the reduction of microbiological risks outweighed by risks for the consumers, farmed animals or the workers? The case studies indicate that the safety of use of feed additives can involve RBA considerations which fit into a One Health perspective. As in other RBA circumstances, the main issues are defining the question and finding "metrics" that allow a R/B comparison; in the case of feed additives, R and B may concern different species (farm animals and humans). A robust assessment of animal requirements, together with sustainability considerations, might be a significant driving force for a RBA leading to a safe and effective use.
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Affiliation(s)
| | | | - Francesco Cubadda
- Istituto Superiore di Sanità - National Institute of Health, Rome, Italy
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Kihal A, Rodríguez-Prado ME, Cristofol C, Calsamiglia S. Short Communication: Quantification of the Effect of Mycotoxin Binders on the Bioavailability of Fat-Soluble Vitamins In Vitro. Animals (Basel) 2021; 11:2251. [PMID: 34438709 PMCID: PMC8388354 DOI: 10.3390/ani11082251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/22/2021] [Accepted: 07/27/2021] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to determine the capacity of six mycotoxin binders (MTBs) to adsorb vitamins A, D and E in an in vitro system that simulates gastric and intestinal digestion. Experiment 1 evaluated the recovery rate of vitamins A, D and E in the incubation conditions. In Experiment 2, the main factors were the MTB (bentonite, clinoptilolite, sepiolite, montmorillonite, active carbon and yeast cell walls), vitamins (A, D and E) and incubation type (vitamins incubated separately or together). The recovery was high for vitamin D (83%) and E (93%), but low for vitamin A (23%), for which no further analyses were conducted. When incubated separately, vitamin D was only adsorbed by yeast cell wall (20.2%). Vitamin E adsorption was highest with bentonite (54.5%) and montmorillonite (46.3%) and lowest with sepiolite (16.6%) and active carbon (18.5%). When incubated together, vitamin D was not adsorbed by any MTB. Vitamin E adsorption was highest in bentonite (61.8%) and montmorillonite (50.7%) and lowest in sepiolite (15.4%). Results indicate that the bioavailability of vitamin E, but not that of vitamin D, may be reduced in the presence of MTBs.
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Affiliation(s)
- Abdelhacib Kihal
- Animal Nutrition and Welfare Service, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (A.K.); (M.E.R.-P.)
| | - María Ercilda Rodríguez-Prado
- Animal Nutrition and Welfare Service, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (A.K.); (M.E.R.-P.)
| | - Carles Cristofol
- Servei d’Analisi de Fàrmacs, Departament de Farmacologia, de Terapèutica i de Toxicologia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain;
| | - Sergio Calsamiglia
- Animal Nutrition and Welfare Service, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (A.K.); (M.E.R.-P.)
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Sun Z, Lian C, Li C, Zheng S. Investigations on organo-montmorillonites modified by binary nonionic/zwitterionic surfactant mixtures for simultaneous adsorption of aflatoxin B 1 and zearalenone. J Colloid Interface Sci 2020; 565:11-22. [PMID: 31931295 DOI: 10.1016/j.jcis.2020.01.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/30/2019] [Accepted: 01/04/2020] [Indexed: 11/16/2022]
Abstract
To solve the problem of simultaneous adsorption of polar and weak polar mycotoxins, organo-montmorillonites modified by binary surfactant mixtures (NZMts), including polyoxyethylene ether (OP-10) and lauramidopropyl betaine (LAB-35), were synthesized for the simultaneous removal of aflatoxin B1 (AFB1) and zearalenone (ZER). The microstructure, interface and pore structure characteristics of NZMts were investigated through different technologies. The results show that the obtained NZMts modified by binary surfactant mixtures have different structural configurations, higher carbon content and stronger hydrophobicity compared with organo-montmorillonites modified by single surfactant. More importantly, the obtained adsorbents show significant improvements on the detoxification efficiency of both AFB1 and ZER. The pH has less effect on the adsorption of NZMts compared with the control samples modified by single surfactant, suggesting that NZMts are more stable in different pH environments. In addition, the adsorption mechanisms of NZMts to AFB1 and ZER were proposed based on the characterizations and adsorption isotherms. It is indicated that NZMts combines with AFB1 mainly through the hydrophobic interaction and ion dipole action, while with ZER mainly through hydrophobic interaction. The as-received NZMts with more hydrophobic property effectively enhance the adsorption capacities of weak polar and non-polar mycotoxins, providing a new orientation for multifunctional mycotoxin adsorbents.
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Affiliation(s)
- Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China
| | - Chi Lian
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China
| | - Chunquan Li
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China.
| | - Shuilin Zheng
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China
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Elliott CT, Connolly L, Kolawole O. Potential adverse effects on animal health and performance caused by the addition of mineral adsorbents to feeds to reduce mycotoxin exposure. Mycotoxin Res 2020; 36:115-126. [PMID: 31515765 PMCID: PMC6971152 DOI: 10.1007/s12550-019-00375-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/02/2019] [Accepted: 09/04/2019] [Indexed: 12/29/2022]
Abstract
The contamination of feed with mycotoxins is a continuing feed quality and safety issue, leading to significant losses in livestock production and potential human health risks. Consequently, various methods have been developed to reduce the occurrence of mycotoxins in feed; however, feed supplementation with clay minerals or mineral adsorbents is the most prominent approach widely practiced by farmers and the feed industry. Due to a negatively charged and high surface area, pore volume, swelling ability, and high cation exchange capacity, mineral adsorbents including bentonite, zeolite, montmorillonite, and hydrated sodium calcium aluminosilicate can bind or adsorb mycotoxins to their interlayer spaces, external surface, and edges. Several studies have shown these substances to be partly or fully effective in counteracting toxic effects of mycotoxins in farm animals fed contaminated diets and thus are extensively used in livestock production to reduce the risk of mycotoxin exposure. Nevertheless, a considerable number of studies have indicated that these agents may also cause undesirable effects in farm animals. The current work aims to review published reports regarding adverse effects that may arise in farm animals (with a focus on pig and poultry) and potential interaction with veterinary substances and nutrients in feeds, when mineral adsorbents are utilized as a technological feed additive. Furthermore, results of in vitro toxicity studies of both natural and modified mineral adsorbents on different cell lines are reported. Supplementation of mycotoxin-contaminated feed with mineral adsorbents must be carefully considered by farmers and feed industry.
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Affiliation(s)
- Christopher T Elliott
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast, UK.
| | - Lisa Connolly
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast, UK
| | - Oluwatobi Kolawole
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Belfast, UK
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Taszkun I, Tomaszewska E, Dobrowolski P, Żmuda A, Sitkowski W, Muszyński S. Evaluation of Collagen and Elastin Content in Skin of Multiparous Minks Receiving Feed Contaminated with Deoxynivalenol (DON, Vomitoxin) with or without Bentonite Supplementation. Animals (Basel) 2019; 9:ani9121081. [PMID: 31817218 PMCID: PMC6940999 DOI: 10.3390/ani9121081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/25/2019] [Accepted: 12/01/2019] [Indexed: 12/26/2022] Open
Abstract
Simple Summary The presence of mycotoxins in products intended for consumption is harmful to the health of both people and animals. One of the most abundant mycotoxins in mink’s feed, often contaminating cereal grains, is a mycotoxin produced by the fungi Fusarium spp. deoxynivalenol (DON). The aim of the study was to investigate whether and how the long-term supply of this mycotoxin in feed influences the skin of adult female minks. An additional objective was to assess the effects of the bentonite additive to feed contaminated by DON, which has the ability to reduce the impact of mycotoxins. The scrapes of the skin were collected from animals after euthanasia and before pelting. After preparing histological slides, samples were examined microscopically. The thickness of the epidermis and dermis was investigated and the presence of elastin and collagen. These parameters determine the quality of the fur skins and economic aspect of this animal husbandry. The results showed that DON causes a decrease in the presence of total collagen and absence of immature collagen, thus reducing the elasticity and flexibility of the skin. The addition the bentonite to feed stimulates the production of collagen, restoring the proper relationship between the tested parameters in mink’s skin. Abstract Deoxynivalenol (DON, vomitoxin) is considered one of the most dangerous mycotoxins contaminating cereal products for food and feed. One of the protective methods against the adverse effect of DON on mink health is to use a component such as bentonite as a feed supplement to allow toxins absorption. The aim of this study was to determine the effect of DON, administered alone or with bentonite, on the histological structure of the skin and the content of collagen and elastin. A multiparous minks from control group (not exposed to DON) and a study groups receiving fed with DON-containing wheat for seven months: I: at a concentration of 1.1 mg/kg of feed, II: at a concentration of 3.7 mg/kg, III: DON at a concentration of 3.7 mg/kg and bentonite at a concentration of 0.5 kg/1000 kg of feed (0.05%) and IV: DON at a concentration of 3.7 mg/kg and bentonite at a concentration 2 kg/1000 kg (0.2%). After performing euthanasia and before pelting, skin samples of 2 cm in diameter were drawn from the multiparous minks from the lateral surface of the right anterior limb. Our obtained results clearly indicate that DON administered for a period of seven months at a dose of 1.1 mg/kg significantly changes the thickness of skin of a multiparous mink. It causes an increase in the percentage of elastin from 5.9% to 9.4% and a decrease in immature collagen, which results in a change in the collagen/elastin ratio from 10/1 to 5/1. A dose of 3.7 mg/kg DON in feed without or with 0.05% bentonite causes the absence of immature collagen in the dermis, but the addition of 0.2% bentonite in the feed reveals the presence of immature collagen and increase the percentage of the elastin.
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Affiliation(s)
- Iwona Taszkun
- Sub-Department of Clinical Diagnostics and Veterinary Dermatology, Department and Clinic of Animal Internal Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka St. 30, 20-612 Lublin, Poland;
- Correspondence: ; Tel.: +48-81-528-46-11
| | - Ewa Tomaszewska
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka St. 12, 20-950 Lublin, Poland;
| | - Piotr Dobrowolski
- Department of Functional Anatomy and Cytobiology, Maria Curie-Sklodowska University, Akademicka St. 19, 20-033 Lublin, Poland;
| | - Andrzej Żmuda
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka St. 30, 20-612 Lublin, Poland;
| | - Wiesław Sitkowski
- Sub-Department of Clinical Diagnostics and Veterinary Dermatology, Department and Clinic of Animal Internal Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka St. 30, 20-612 Lublin, Poland;
| | - Siemowit Muszyński
- Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland;
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Bampidis V, Azimonti G, Bastos MDL, Christensen H, Dusemund B, Kouba M, Kos Durjava M, López-Alonso M, López Puente S, Marcon F, Mayo B, Pechová A, Petkova M, Ramos F, Sanz Y, Villa RE, Woutersen R, Chesson A, Gropp J, Martelli G, Renshaw D, López-Gálvez G, Mantovani A. Efficacy of a preparation of algae interspaced bentonite as a feed additive for all animal species. EFSA J 2019; 17:e05604. [PMID: 32626228 PMCID: PMC7009273 DOI: 10.2903/j.efsa.2019.5604] [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] [Indexed: 11/11/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP Panel) was asked to deliver a scientific opinion on the efficacy of a preparation of algae interspaced bentonite when used as aflatoxin B1 (AfB1) binder for all animal species; the additive is composed of bentonite feed grade and algae belonging to Ulva spp. The European Commission request follows an opinion of the FEEDAP Panel published in 2016; in that opinion, the FEEDAP Panel could not conclude on the efficacy of the additive. The applicant has submitted additional information to allow the FEEDAP Panel to complete its assessment; these additional data, related to the efficacy of the additive, are the subject of this opinion. In the efficacy study provided, the use of the additive reduced the AfM1 in milk, although this effect seemed to be not consistent over time; this study presented some weaknesses and limitations (incomplete data analysis, reporting and lack of determination of the active substance of the additive in feed) which do not allow the FEEDAP Panel to draw any conclusion on the efficacy of the additive. Due to insufficient evidence, the FEEDAP Panel cannot conclude on the efficacy of the algae interspaced bentonite as a technological feed additive for all animal species.
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Eskola M, Altieri A, Galobart J. Overview of the activities of the European Food Safety Authority on mycotoxins in food and feed. WORLD MYCOTOXIN J 2018. [DOI: 10.3920/wmj2017.2270] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mycotoxins are widely occurring in foods and feeds and dietary exposure to them can induce various types of adverse health effects in humans and animals. Since its establishment in 2002, the European Food Safety Authority (EFSA) has assessed risks of dietary exposure to mycotoxins for public health and for the health of farm and companion animals on the request of the European Commission and has assessed safety and efficacy of feed additives for the reduction of contamination of feed by mycotoxins within the European Union authorisation process for feed additives. Over 40 scientific opinions on risks of mycotoxins for human and animal health and other reports on mycotoxins have been issued by the authority for the use of the European risk managers. Mycotoxins belong to one of the important areas of the EFSA work. Occurrence data on mycotoxins submitted to EFSA by the European national food safety bodies and research institutions have been collected in the EFSA databases and have informed its scientific opinions and reports on mycotoxins. Similarly, many EFSA-funded projects conducted by the European research organisations, not only to generate data on occurrence, but also data on toxicity of mycotoxins, have provided valuable information for the risk assessments of EFSA. Aflatoxin and deoxynivalenol are the mycotoxins, for which EFSA has delivered most of its scientific mycotoxin opinions. Very recently also modified forms of mycotoxins have been included in the EFSA risk assessments. In this review paper an overview of many different EFSA activities on mycotoxins is given. It also includes a brief description how EFSA develops its scientific opinions and works.
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Affiliation(s)
- M. Eskola
- Center for Analytical Chemistry, BOKU-University of Natural Resources and Life Sciences Vienna, Department IFA-Tulln, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - A. Altieri
- Evidence Management Unit, European Food Safety Authority EFSA, Via Carlo Magno 1A, 43126 Parma, Italy
| | - J. Galobart
- Feed Unit, European Food Safety Authority EFSA, Via Carlo Magno 1A, 43126 Parma, Italy
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11
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Rychen G, Aquilina G, Azimonti G, Bampidis V, de Lourdes Bastos M, Bories G, Chesson A, Cocconcelli PS, Flachowsky G, Gropp J, Kolar B, Kouba M, López‐Alonso M, Mantovani A, Mayo B, Ramos F, Saarela M, Villa RE, Wallace RJ, Wester P, Martelli G, Renshaw D, López Puente S. Safety and efficacy of a preparation of algae interspaced bentonite as a feed additive for all animal species. EFSA J 2016. [DOI: 10.2903/j.efsa.2016.4623] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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12
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Tomaszewska E, Muszyński S, Dobrowolski P, Kostro K, Taszkun I, Żmuda A, Blicharski T, Kędzia P. Bentonite diminishes DON-induced changes in bone development in mink dams. J Vet Res 2016. [DOI: 10.1515/jvetres-2016-0033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Introduction: The aim of this study was to determine the effect of deoxynivalenol (DON), given alone or with bentonite (which eliminates mycotoxicity) in the diet of mink dams throughout mating, pregnancy, and lactation period to pelt harvesting, on the mechanical properties and geometry of their long bones.
Material and Methods: The minks were randomly assigned into two groups: a control group (not supplemented with DON, n = 15) and a group fed naturally DON-contaminated wheat and divided into three sub-groups (each sub-group n = 15), depending on bentonite dose: 0 M – sub-group fed naturally DON-contaminated wheat at a concentration of 3.7 mg kg−1 alone; 2 M – sub-group fed naturally DON-contaminated wheat at a concentration of 3.7 mg kg−1 and bentonite at a concentration of 2 kg 1000 kg−1; 0.5 M – sub-group fed naturally DON-contaminated wheat at a concentration of 3.7 mg kg−1 and bentonite at a concentration of 0.5 kg 1000 kg−1.
Results: The DON treatment reduced the length of the femur compared to the control group and reduced the bone weight dependently on the amount of bentonite supplementation. However, DON treatment reduced the MRWT and CI of the femur, irrespective of the bentonite supplementation, compared to the control. The total BTD and BMC decreased in all DON-treated groups (irrespective of the bentonite supplementation). Furthermore, the densitometric analysis showed that the main changes in BMD and BMC indicated bone loss in the proximal and distal parts of bone covering the trabecular bone; whereas when bentonite was given at the dose of 2 kg 1000 kg−1 an increase in the whole BMD and BMC was observed in the femoral midshaft.
Conclusion: Analysis of the geometrical parameters seems to indicate that endosteal resorption was delayed after bentonite supplementation. The addition of bentonite diminished the DON action on bone homeostasis in the mink dams. Thus bentonite could prevent DON-induced bone loss in a dose-dependent manner.
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Affiliation(s)
- Ewa Tomaszewska
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences, 20-950 Lublin, Poland
| | - Siemowit Muszyński
- Department of Physics, Faculty of Production Engineering, University of Life Sciences, 20-950 Lublin, Poland
| | - Piotr Dobrowolski
- Department of Comparative Anatomy and Anthropology, Maria Curie-Skłodowska University, 20-950 Lublin, Poland
| | - Krzysztof Kostro
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences, 20-950 Lublin, Poland
| | - Iwona Taszkun
- Sub-department of Clinical Diagnostics and Veterinary Dermatology, Department and Clinic of Internal Medicine, Faculty of Veterinary Medicine, University of Life Sciences, 20-950 Lublin, Poland
| | - Andrzej Żmuda
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences, 20-950 Lublin, Poland
| | - Tomasz Blicharski
- Chair and Department of Rehabilitation and Orthopaedics, Medical University in Lublin, 20-090 Lublin, Poland
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13
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Ramales-Valderrama RA, Vázquez-Durán A, Méndez-Albores A. Biosorption of B-aflatoxins Using Biomasses Obtained from Formosa Firethorn [Pyracantha koidzumii (Hayata) Rehder]. Toxins (Basel) 2016; 8:E218. [PMID: 27420096 PMCID: PMC4963850 DOI: 10.3390/toxins8070218] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 12/03/2022] Open
Abstract
Mycotoxin adsorption onto biomaterials is considered as a promising alternative for decontamination without harmful chemicals. In this research, the adsorption of B-aflatoxins (AFB₁ and AFB₂) using Pyracantha koidzumii biomasses (leaves, berries and the mixture of leaves/berries) from aqueous solutions was explored. The biosorbent was used at 0.5% (w/v) in samples spiked with 100 ng/mL of B-aflatoxin standards and incubated at 40 °C for up to 24 h. A standard biosorption methodology was employed and aflatoxins were quantified by an immunoaffinity column and UPLC methodologies. The biosorbent-aflatoxin interaction mechanism was investigated from a combination of zeta potential (ζ), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The highest aflatoxin uptakes were 86% and 82% at 6 h using leaves and the mixture of leaves/berries biomasses, respectively. A moderate biosorption of 46% was attained when using berries biomass. From kinetic studies, the biosorption process is described using the first order adsorption model. Evidence from FTIR spectra suggests the participation of hydroxyl, amine, carboxyl, amide, phosphate and ketone groups in the biosorption and the mechanism was proposed to be dominated by the electrostatic interaction between the negatively charged functional groups and the positively charged aflatoxin molecules. Biosorption by P. koidzumii biomasses has been demonstrated to be an alternative to conventional systems for B-aflatoxins removal.
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Affiliation(s)
| | - Alma Vázquez-Durán
- UNAM-FESC, Campus 4. Multidisciplinary Research Unit L14 (Food, Mycotoxins and Mycotoxicosis), Cuautitlan Izcalli 54714, Mexico.
| | - Abraham Méndez-Albores
- UNAM-FESC, Campus 4. Multidisciplinary Research Unit L14 (Food, Mycotoxins and Mycotoxicosis), Cuautitlan Izcalli 54714, Mexico.
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14
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Liu X, Shen Z, Wang P, Liu C, Yao G, Zhou Z, Liu D. Enantioselective Characteristics and Montmorillonite-Mediated Removal Effects of α-Hexachlorocyclohexane in Laying Hens. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:5695-5701. [PMID: 27163366 DOI: 10.1021/acs.est.6b01111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
α-Hexachlorocyclohexane (α-HCH) is a chiral organochlorine pesticide that is often ubiquitously detected in various environmental matrices and may be absorbed by the human body via food consumption, with serious detriments to human health. In this study, enantioselective degradation kinetics and residues of α-HCH in laying hens were investigated after a single dose of exposure to the pesticide, whereas enantioselectivity and residues of α-HCH in eggs, droppings, and various tissues were investigated after long-term exposure. Meanwhile, montmorillonite (MMT), a feed additive with high capacity of adsorption, was investigated for its ability to remove α-HCH from laying hens. Most non-brain tissues enantioselectively accumulated (-)-α-HCH, while (+)-α-HCH was preferentially accumulated in the brain. The enantiomer fractions (EFs) in most tissues gradually decreased, implying continuous depletion of (+)-α-HCH in laying hens. After 30 days of exposure and 31 days of elimination, the concentration of α-HCH in eggs and tissues of laying hens with MMT-containing feed was lower than that with MMT-free feed, indicating the removal effects of MMT for α-HCH in laying hens. The findings presented herein suggest that modified MMT may potentially be useful in reducing the enrichment of α-HCH in laying hens and eggs, thus lowering the risk of human intake of α-HCH.
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Affiliation(s)
- Xueke Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
| | - Zhigang Shen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
| | - Peng Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
| | - Chang Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
| | - Guojun Yao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
| | - Donghui Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing 100193, People's Republic of China
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15
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Wielogórska E, MacDonald S, Elliott C. A review of the efficacy of mycotoxin detoxifying agents used in feed in light of changing global environment and legislation. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2015.1919] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In the recent years, mycotoxins have undoubtedly gained a keen interest of the scientific community studying food safety. The main reason is their profound impact on both human and animal health. International surveys reveal a low percentage of feed samples being contaminated above permitted/guideline levels, developed to protect consumers of animal derived products. However, the deleterious impact of feed co-contaminated at low levels with numerous both known and regulated as well as novel mycotoxins on producing animals has been described. Associated effects on agro-economics world-wide include substantial pecuniary losses which are borne by the society as a whole. Even though good agronomic practice is thought to be the most effective way of preventing animal feed contamination, the EC have recognised the need to introduce an additional means of management of feed already contaminated with low-levels of mycotoxins to alleviate detrimental effects on agricultural production efficiency. This review discusses types of feed detoxifying agents described in scientific literature, their reported efficacy in both in vitro and in vivo systems, and comparison with available commercial formulations in the light of increasing knowledge regarding mycotoxin prevalence in the changing global environment.
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Affiliation(s)
- E. Wielogórska
- Institute for Global Food Security, Queen’s University Belfast, 18-30 Malone Road, Belfast BT9 5BN, United Kingdom
| | - S. MacDonald
- Food and Environment Research Agency, Sand Hutton, York YO41 1LZ, United Kingdom
| | - C.T. Elliott
- Institute for Global Food Security, Queen’s University Belfast, 18-30 Malone Road, Belfast BT9 5BN, United Kingdom
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16
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Vekiru E, Fruhauf S, Rodrigues I, Ottner F, Krska R, Schatzmayr G, Ledoux D, Rottinghaus G, Bermudez A. In vitro binding assessment and in vivo efficacy of several adsorbents against aflatoxin B1. WORLD MYCOTOXIN J 2015. [DOI: 10.3920/wmj2014.1800] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Aflatoxins are a class of mycotoxins that impair poultry health and performance. Some clays have the ability to adsorb aflatoxins. In our study, mineralogical composition of the tested clays was confirmed by powder X-ray diffraction and simultaneous thermal analysis and their properties like pH, electrical conductivity, exchangeable cations, cation exchange capacity and clay content were determined. For their in vitro assessment regarding aflatoxin B1 (AFB1) adsorption, adsorption tests under ‘intensified conditions’ (low adsorbent and high toxin concentration) were carried out in buffers at various pH values and in real gastric juice followed by isothermal analysis in phosphate buffer. In vivo we used a completely randomised design with 4 replicate pens of 5 chicks assigned to each dietary treatment from hatch to 21 days. Dietary treatments included a negative and a positive control diet (2 mg/kg AFB1), and treatment groups receiving 2 mg/kg AFB1 and 0.5% of one of 8 adsorbents. Results of in vitro experiments ranked the adsorbents as ‘good’ (R, MB, B7, M32, M34, M5; 6 bentonites containing a cis-vacant smectite), ‘average’ (bentonite C2 containing a trans-vacant smectite) or ‘poor’ (zeolite Z08, containing clinoptilolite). The addition of AFB1 significantly reduced feed intake and/or body weight gain of the chicks compared to the negative control and to the treatment groups, except for C2 and Z08. Except Z08, all adsorbents numerically decreased the liver weight compared to the AFB1-fed group. Kidney weights were significantly increased by the addition of AFB1 compared to the control and most adsorbents, except C2 and Z08. Similarly, ‘good’ adsorbents significantly prevented the decrease in serum albumin and serum total protein. The ability of adsorbents to ameliorate AFB1 toxicity in poultry basically correlated with the in vitro findings meaning that ‘poor’ and ‘average’ adsorbents did not (Z08) or only partially (C2) protect against AFB1 in vivo.
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Affiliation(s)
- E. Vekiru
- Christian Doppler Laboratory for Mycotoxin Research, Center for Analytical Chemistry, Department for Agrobiotechnology (IFA Tulln), University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Str. 20, 3430 Tulln, Austria
| | - S. Fruhauf
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria
| | - I. Rodrigues
- BIOMIN Holding GmbH, Industriestrasse 21, 3130 Herzogenburg, Austria
| | - F. Ottner
- University of Natural Resources and Life Sciences, Vienna, Institute of Applied Geology, Peter-Jordan-Straβe 70, 1190 Wien, Austria
| | - R. Krska
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria
| | - G. Schatzmayr
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria
| | - D.R. Ledoux
- Fusarium/Poultry Research Laboratory, University of Missouri, Columbia, MO 65211, USA
| | - G.E. Rottinghaus
- Fusarium/Poultry Research Laboratory, University of Missouri, Columbia, MO 65211, USA
| | - A.J. Bermudez
- Fusarium/Poultry Research Laboratory, University of Missouri, Columbia, MO 65211, USA
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17
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Zhang H, Lv X, Zhang X, Wang H, Deng H, Li Y, Xu X, Huang R, Li X. Antibacterial and hemostatic performance of chitosan–organic rectorite/alginate composite sponge. RSC Adv 2015. [DOI: 10.1039/c5ra08569a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We fabricate a novel chitosan–OREC/SA composite sponge and study the antibacterial and hemostatic performances.
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Affiliation(s)
- Honghui Zhang
- Department of Plastic Surgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi’an 710038
- China
| | - Xiaoxing Lv
- Department of Plastic Surgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi’an 710038
- China
| | - Xinping Zhang
- Department of General Surgery
- the General Hospital of Shenyang Military
- Shenyang 110015
- China
| | - Hongjun Wang
- Department of Chemistry
- Chemical Biology and Biomedical Engineering
- Stevens Institute of Technology
- Hoboken
- USA
| | - Hongbing Deng
- School of Resource and Environmental Science
- Wuhan University
- Wuhan 430079
- China
| | - Yuejun Li
- Department of Plastic Surgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi’an 710038
- China
| | - Xiaoli Xu
- Department of Plastic Surgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi’an 710038
- China
| | - Rong Huang
- Department of Plastic Surgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi’an 710038
- China
| | - Xueyong Li
- Department of Plastic Surgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi’an 710038
- China
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18
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Zhan Y, Zeng W, Jiang G, Wang Q, Shi X, Zhou Z, Deng H, Du Y. Construction of lysozyme exfoliated rectorite-based electrospun nanofibrous membranes for bacterial inhibition. J Appl Polym Sci 2014. [DOI: 10.1002/app.41496] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yingfei Zhan
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
- Hubei-MOST KLOS & KLOBME; Wuhan University Stomatological Hospital, Wuhan University; Wuhan 430079 China
| | - Wen Zeng
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
| | - Guoxia Jiang
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
| | - Qun Wang
- Department of Chemical and Biological Engineering; Iowa State University; Ames Iowa 50014
- Department of Civil; Construction and Environmental Engineering, Iowa State University; Ames Iowa 50014
| | - Xiaowen Shi
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
| | - Zhehao Zhou
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
| | - Hongbing Deng
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
| | - Yumin Du
- Department of Environmental Science; School of Resource and Environmental Science, Wuhan University; Wuhan 430079 China
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19
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Li W, Li X, Wang Q, Pan Y, Wang T, Wang H, Song R, Deng H. Antibacterial activity of nanofibrous mats coated with lysozyme-layered silicate composites via electrospraying. Carbohydr Polym 2014; 99:218-25. [DOI: 10.1016/j.carbpol.2013.07.055] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 07/10/2013] [Accepted: 07/23/2013] [Indexed: 01/30/2023]
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20
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Liu X, Wang X, Zhang J, Wang X, Lu Y, Tu H, Deng H, Jiang L. Protein–polymer co-induced exfoliated layered silicate structure based nanofibrous mats and their cytotoxicity. RSC Adv 2014. [DOI: 10.1039/c3ra45344h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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21
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Nanofibrous mats coated by homocharged biopolymer-layered silicate nanoparticles and their antitumor activity. Colloids Surf B Biointerfaces 2013; 105:137-43. [DOI: 10.1016/j.colsurfb.2012.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 11/28/2012] [Accepted: 12/10/2012] [Indexed: 11/22/2022]
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22
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An in vitro model using the IPEC-J2 cell line for efficacy and drug interaction testing of mycotoxin detoxifying agents. Toxicol In Vitro 2013; 27:157-63. [DOI: 10.1016/j.tiv.2012.09.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Revised: 09/26/2012] [Accepted: 09/27/2012] [Indexed: 11/21/2022]
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23
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Li W, Li X, Chen Y, Li X, Deng H, Wang T, Huang R, Fan G. Poly(vinyl alcohol)/sodium alginate/layered silicate based nanofibrous mats for bacterial inhibition. Carbohydr Polym 2012; 92:2232-8. [PMID: 23399282 DOI: 10.1016/j.carbpol.2012.12.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 09/23/2012] [Accepted: 12/03/2012] [Indexed: 11/24/2022]
Abstract
Poly(vinyl alcohol) (PVA)/sodium alginate (ALG)/organic rectorite (OREC) composite nanofibrous mats are fabricated by electrospinning aqueous solutions with different mixing ratios. Both good fiber shape and three-dimensional structure of nanofibrous mats can be observed by Field Emission Scanning Electron Microscopy. Energy-dispersive X-ray spectroscopy shows the existence of OREC in the as-spun composite mats. In addition, small-angle X-ray diffraction confirms that the interlayer of OREC is intercalated by ALG/PVA chains, and the distance between OREC interlayers is increased from 4.50 to 4.74 nm. Wide angle X-ray diffraction and Fourier transform infrared spectra further verify the intercalation is between polymers and layered silicate. Moreover, the thermal gravimetric analysis shows that the addition of OREC has only a small effect on the thermal stability of composites. Furthermore, the antibacterial experiments illustrate that OREC can enhance the bacterial inhibition ability of nanofibrous mats against Escherichia coli and Staphylococcus aureus.
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Affiliation(s)
- Wei Li
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
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24
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Devreese M, Osselaere A, Goossens J, Vandenbroucke V, De Baere S, De Backer P, Croubels S. Interaction between tylosin and bentonite clay from a pharmacokinetic perspective. Vet J 2012; 194:437-9. [DOI: 10.1016/j.tvjl.2012.05.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 04/23/2012] [Accepted: 05/19/2012] [Indexed: 11/25/2022]
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25
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Quaternized chitosan–organic rectorite intercalated composites based nanoparticles for protein controlled release. Int J Pharm 2012; 438:258-65. [DOI: 10.1016/j.ijpharm.2012.09.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 08/27/2012] [Accepted: 09/06/2012] [Indexed: 12/18/2022]
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26
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Huang R, Li Y, Zhou X, Zhang Q, Jin H, Zhao J, Pan S, Deng H. LBL fabricated biopolymer-layered silicate based nanofibrous mats and their cell compatibility studies. Carbohydr Polym 2012; 90:957-66. [DOI: 10.1016/j.carbpol.2012.06.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 06/07/2012] [Accepted: 06/11/2012] [Indexed: 11/29/2022]
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27
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Huang W, Xu H, Xue Y, Huang R, Deng H, Pan S. Layer-by-layer immobilization of lysozyme–chitosan–organic rectorite composites on electrospun nanofibrous mats for pork preservation. Food Res Int 2012. [DOI: 10.1016/j.foodres.2012.06.026] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Quaternized chitosan-layered silicate intercalated composites based nanofibrous mats and their antibacterial activity. Carbohydr Polym 2012; 89:307-13. [DOI: 10.1016/j.carbpol.2012.02.009] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Revised: 01/30/2012] [Accepted: 02/04/2012] [Indexed: 11/20/2022]
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29
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Scientific Opinion on the efficacy of Bentonite (dioctahedral montmorillonite) for all species. EFSA J 2011. [DOI: 10.2903/j.efsa.2011.2276] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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