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Kolackova I, Smolkova B, Skladanka J, Kouril P, Hrudova E. Epiphytic microflora and mycotoxin content in meadows-Is plant biodiversity affecting fungal contamination? PLoS One 2023; 18:e0288397. [PMID: 37708181 PMCID: PMC10501618 DOI: 10.1371/journal.pone.0288397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 06/23/2023] [Indexed: 09/16/2023] Open
Abstract
Ecosystem services are an important aspect of grasslands utilization; however, they are often contradictory to their main purpose, which is a production of good quality and safe feed. In this study, we evaluated the difference between grass monocultures and species-rich mixtures in terms of epiphytic microflora and mycotoxin contamination levels. We hypothesized that higher species diversity would lead to higher microbial counts, which could lead to higher mycotoxin contamination risk. Differences in epiphytic fungal, yeast and total amount of microorganisms (CFU g -1) depending on the species diversity in the field has been evaluated by cultivation method. Concentration of deoxynivalenol (DON), zearalenone (ZEN) and aflatoxin B1 (AFB1) was measured by ELISA. Results are suggesting that higher total amount of microorganisms were found in monocultures, however, fungal and yeast counts were higher in species-rich mixtures. Higher species diversity of grasses was related to higher total microbial count (TMC) and yeast colonization of phyllosphere. Our results suggest higher risk of fungal phyllosphere colonization of species-rich mixtures with higher biodiversity and therefore higher risk of mycotoxin contamination of such feed.
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Affiliation(s)
- Ivana Kolackova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Barbora Smolkova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Petr Kouril
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Eva Hrudova
- Department of Crop Science, Breeding and Plant Medicine, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
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Horky P, Nevrkla P, Kopec T, Bano I, Skoric M, Skladanka J, Skalickova S. Correction to: Is a new generation of mycotoxin clay adsorbents safe in a pig's diet? Porcine Health Manag 2022; 8:33. [PMID: 35879781 PMCID: PMC9316725 DOI: 10.1186/s40813-022-00276-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Pavel Nevrkla
- Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Tomas Kopec
- Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Iqra Bano
- Department of Physiology and Biochemistry, Faculty of Bio-Sciences, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, 67210, Sindh, Pakistan
| | - Misa Skoric
- Department of Pathological Morphology and Parasitology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho trida 1946/1, Brno, 61200, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.
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Horky P, Nevrka P, Kopec T, Bano I, Skoric M, Skladanka J, Skalickova S. Is a new generation of mycotoxin clay adsorbents safe in a pig's diet? Porcine Health Manag 2022; 8:31. [PMID: 35787737 PMCID: PMC9254414 DOI: 10.1186/s40813-022-00275-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 06/20/2022] [Indexed: 01/04/2023] Open
Abstract
Background Bentonites, as a clay mineral, serve in pig farms as adsorbents of toxic substances. They are mainly used to reduce the negative impact of mycotoxins to maintain the performance and health status of animals. The new genotypes of pigs are highly sensitive to a range of antinutrients, including mycotoxins. Currently, attention is focused on more effective adsorbents of mycotoxins with a higher adsorption capacity. Such materials are in great demand among feed manufacturers. However, there is a concern that these new materials may also adsorb too many essential nutrients and decrease animal performance. The aim of the experiment was to evaluate the effect of the new generation of purified bentonites on the efficiency and health status of the pigs. Results Forty-eight slaughtered pigs with an average weight of 31.2 ± 2.6 kg were included in the experiment. The pigs were divided into two groups (2 × 24 pigs). Pigs were slaughtered at an average weight of 66.3 ± 5.2. The first group had a diet without clay (control—C). The second group (treatment—T) was fed a diet with a clay additive (purified bentonite) of 1.5 kg/t. Animals were fed the experimental diet for 35 days. In group T, a higher daily weight gain (by 4.8%) and feed intake (by 2.9%) was observed while the feed conversion decreased by 1.9%. There were no significant differences between the groups of pigs during observation in the evaluation of hematological, biochemical parameters of the blood. Morpho-pathological analysis of the jejunum showed similar signs of moderate lymphoplasmacytic infiltrate in the mucosa in the groups C and T, contained similar number of goblet cells. Conclusion Taken together, the addition of the new generation of bentonite clays did not negatively influence the health status and the performance of pigs.
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Affiliation(s)
- Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Pavel Nevrka
- Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Tomas Kopec
- Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Iqra Bano
- Department of Physiology and Biochemistry, Faculty of Bio-Sciences, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, 67210, Sindh, Pakistan
| | - Misa Skoric
- Department of Pathological Morphology and Parasitology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho trida 1946/1, Brno, 61200, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.
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Baholet D, Skalickova S, Batik A, Malyugina S, Skladanka J, Horky P. Importance of Zinc Nanoparticles for the Intestinal Microbiome of Weaned Piglets. Front Vet Sci 2022; 9:852085. [PMID: 35720843 PMCID: PMC9201420 DOI: 10.3389/fvets.2022.852085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/18/2022] [Indexed: 11/13/2022] Open
Abstract
The scientific community is closely monitoring the replacement of antibiotics with doses of ZnO in weaned piglets. Since 2022, the use of zinc in medical doses has been banned in the European Union. Therefore, pig farmers are looking for other solutions. Some studies have suggested that zinc nanoparticles might replace ZnO for the prevention of diarrhea in weaning piglets. Like ZnO, zinc nanoparticles are effective against pathogenic microorganisms, e.g., Enterobacteriaceae family in vitro and in vivo. However, the effect on probiotic Lactobacillaceae appears to differ for ZnO and zinc nanoparticles. While ZnO increases their numbers, zinc nanoparticles act in the opposite way. These phenomena have been also confirmed by in vitro studies that reported a strong antimicrobial effect of zinc nanoparticles against Lactobacillales order. Contradictory evidence makes this topic still controversial, however. In addition, zinc nanoparticles vary in their morphology and properties based on the method of their synthesis. This makes it difficult to understand the effect of zinc nanoparticles on the intestinal microbiome. This review is aimed at clarifying many circumstances that may affect the action of nanoparticles on the weaning piglets' microbiome, including a comprehensive overview of the zinc nanoparticles in vitro effects on bacterial species occurring in the digestive tract of weaned piglets.
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Affiliation(s)
- Daria Baholet
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czechia
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czechia
| | - Andrej Batik
- Department of Animal Morphology, Physiology and Genetics, Mendel University in Brno, Brno, Czechia
| | - Svetlana Malyugina
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czechia
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czechia
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czechia
- *Correspondence: Pavel Horky
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Skalickova S, Ridoskova A, Slama P, Skladanka J, Skarpa P, Smykalova I, Horacek J, Dostalova R, Horky P. Effect of Lactic Fermentation and Cooking on Nutrient and Mineral Digestibility of Peas. Front Nutr 2022; 9:838963. [PMID: 35284457 PMCID: PMC8908447 DOI: 10.3389/fnut.2022.838963] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 01/25/2022] [Indexed: 12/21/2022] Open
Abstract
Peas are prospectively beneficial legumes in the human diet, and especially in a vegan and vegetarian diet, due to their high content of proteins and starch. Their frequent lack of appeal in human nutrition can be caused by their bloating effect and the content of some antinutritional compounds inhibiting the absorption of important nutrients. This study brings a comprehensive comparison of the nutrient content of pea flour after cooking and lactic fermentation before and after digestion in vitro. As a control sample, raw pea flour was used (sample 1). Raw pea flour was cooked for 10 min (sample 2) and 120 min (sample 3) at 100°C or it was fermented by Lactobacillus plantarum (sample 4) and cooked for 10 min at 100°C (sample 5). The samples were analyzed for protein and amino acids content, maltose, glucose, raffinose, total polyphenols, phytic acid, phytase, and mineral composition (P, Mg, Mn, Fe, Cu, Zn) before and after in vitro digestion. The results showed a significant (p < 0.05) increase in the protein digestibility of samples 3, 4 and 5. In the fermented samples were observed a higher concentration of Cys, Met, and Gln when compared to non-fermented samples. The fermentation of pea flour resulted in a significant (p < 0.05) decrease in glucose, maltose, and raffinose content. Cooking of pea flour for 10 and 120 min, but not fermenting, significantly (p < 0.05) decreased the polyphenols content. Cooking and fermentation together did not affect phytic acid concentration and phytase activity. Mg, Mn, Fe, Cu and, Zn concentration in pea flour was significantly (p < 0.05) decreased by cooking. On the other hand, fermentation significantly (p<0.05) improved the bioaccessibility of Mn and Fe. These findings suggest that lactic fermentation of pea flour is a promising culinary preparation that can improve the digestibility of peas.
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Affiliation(s)
- Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Petr Skarpa
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | | | | | | | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
- *Correspondence: Pavel Horky
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Horky P, Gruberova HA, Aulichova T, Malyugina S, Slama P, Pavlik A, Skladanka J, Skoric M, Skalickova S. Protective effect of a new generation of activated and purified bentonite in combination with yeast and phytogenic substances on mycotoxin challenge in pigs. PLoS One 2021; 16:e0259132. [PMID: 34705867 PMCID: PMC8550360 DOI: 10.1371/journal.pone.0259132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 10/13/2021] [Indexed: 01/17/2023] Open
Abstract
The study aimed to investigate the efficacy of new mycotoxin adsorbents based on purified and activated bentonites combined with yeast and phytogenic compounds in fattening pigs. The experiment involved 96 pigs (31.2±2.4 kg). Control (C) group was fed a diet naturally contaminated with mycotoxins (5 mg/kg deoxynivalenol, DON) without an adsorbent. Treated groups received the feed with mycotoxin adsorbents: purified and activated bentonite (T1), purified and activated bentonite, yeast derivatives, phytogenic substances (T2), and purified, activated, and sulphurated bentonite with phytogenic substances (T3). Evaluated parameters involved growth performance, organ weight, small intestine and liver histopathology, complete blood count, serum biochemistry, antioxidant status of the organism and total and free DON content in urine. In all treated groups, an significant increase in intestinal GSH and GSH/GSSG ratio was observed when compared to C. No significant effects on liver and kidney weight, complete blood count, serum or intestinal malondialdehyde concentration, or total/free DON content in urine were observed. All adsorbents improved histopathological findings in the liver when compared to C. Moreover, T1, and T2 groups showed no presence of inflammatory reaction or necrotic changes in the livers. Although, mycotoxin adsorbents investigated in this study had no significant impact on pig growth performance, they reduced the oxidative stress, and on the tissue level they protected the jejunal tissue and liver parenchyma under deoxynivalenol challenge.
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Affiliation(s)
- Pavel Horky
- Faculty of AgriSciences, Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Hana Abigail Gruberova
- Faculty of AgriSciences, Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Tereza Aulichova
- Faculty of AgriSciences, Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Svetlana Malyugina
- Faculty of AgriSciences, Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Petr Slama
- Faculty of AgriSciences, Department of Animal Morphology, Physiology and Genetics, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Ales Pavlik
- Faculty of AgriSciences, Department of Animal Morphology, Physiology and Genetics, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Jiri Skladanka
- Faculty of AgriSciences, Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic, European Union
| | - Misa Skoric
- Faculty of Veterinary Medicine, Department of Pathological Morphology and Parasitology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic, European Union
| | - Sylvie Skalickova
- Faculty of AgriSciences, Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic, European Union
- * E-mail:
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Kolackova I, Gruberova HA, Kratochvil O, Baholet D, Skladanka J, Jancar J, Skarpa P. Effect of Foliar Copper-Containing Superabsorbent Polymers on Nutritional Characteristics and Mycotoxin Contamination of Wheat Kernel. Acta Univ Agric Silvic Mendelianae Brun 2021. [DOI: 10.11118/actaun.2021.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Urbankova L, Skalickova S, Pribilova M, Ridoskova A, Pelcova P, Skladanka J, Horky P. Effects of Sub-Lethal Doses of Selenium Nanoparticles on the Health Status of Rats. Toxics 2021; 9:toxics9020028. [PMID: 33546233 PMCID: PMC7913318 DOI: 10.3390/toxics9020028] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 11/30/2022]
Abstract
Selenium nanoparticles (SeNPs) are fast becoming a key instrument in several applications such as medicine or nutrition. Questions have been raised about the safety of their use. Male rats were fed for 28 days on a monodiet containing 0.5, 1.5, 3.0 and 5.0 mg Se/kg. Se content in blood and liver, liver panel tests, blood glucose, total antioxidant capacity (TAC), the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx) were analysed. Liver and duodenum were subjected to histopathology examination. The weight gain of rats showed no differences between tested groups. Se content in blood was higher in all treated groups compared to the control group. The liver concentration of Se in the treated groups varied in the range from 222 to 238 ng/g. No differences were observed in the activity of AST (aspartate aminotransferase), ALP (alkaline phosphatase) and TAS (total antioxidant status). A significant decrease in ALT activity compared to the control group was observed in the treated groups. GPx activity varied from 80 to 88 U/mL through tested groups. SOD activity in liver was decreased in the SeNP-treated group with 5 mg Se/kg (929 ± 103 U/mL). Histopathological examination showed damage to the liver parenchyma and intestinal epithelium in a dose-dependent manner. This study suggests that short-term SeNP supplementation can be safe and beneficial in Se deficiency or specific treatment.
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Affiliation(s)
- Lenka Urbankova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
- Correspondence:
| | - Magdalena Pribilova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (A.R.); (P.P.)
- CEITEC-Central European Institute of Technology, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Pavlina Pelcova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (A.R.); (P.P.)
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (L.U.); (M.P.); (J.S.); (P.H.)
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Skalickova S, Horky P, Mlejnkova V, Skladanka J, Hosnedlova B, Ruttkay‐Nedecky B, Fernandez C, Kizek R. Theranostic Approach for the Protein Corona of Polysaccharide Nanoparticles. CHEM REC 2020; 21:17-28. [DOI: 10.1002/tcr.202000042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 10/22/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Sylvie Skalickova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy Masaryk University Palackeho 1946/1 612 00 Brno Czech Republic
- Department of Animal Nutrition and Forage Production Mendel University in Brno Zemedelska 1 613 00 Brno Czech Republic
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production Mendel University in Brno Zemedelska 1 613 00 Brno Czech Republic
| | - Veronika Mlejnkova
- Department of Animal Nutrition and Forage Production Mendel University in Brno Zemedelska 1 613 00 Brno Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production Mendel University in Brno Zemedelska 1 613 00 Brno Czech Republic
| | - Bozena Hosnedlova
- Department of Research and Development Prevention Medicals Tovarni 342 742 13 Studenka-Butovice Czech Republic
- Department of Viticulture and Enology, Faculty of Horticulture Mendel University in Brno Valticka 337 CZ-691 44 Lednice Czech Republic
| | - Branislav Ruttkay‐Nedecky
- Department of Research and Development Prevention Medicals Tovarni 342 742 13 Studenka-Butovice Czech Republic
- Department of Viticulture and Enology, Faculty of Horticulture Mendel University in Brno Valticka 337 CZ-691 44 Lednice Czech Republic
- Department of Molecular Pharmacy, Faculty of Pharmacy Masaryk University Palackeho 1946/1 612 00 Brno Czech Republic
| | - Carlos Fernandez
- School of Pharmacy and Life Sciences Robert Gordon University Garthdee Road AB10 7QB Aberdeen UK
| | - Rene Kizek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy Masaryk University Palackeho 1946/1 612 00 Brno Czech Republic
- Department of Research and Development Prevention Medicals Tovarni 342 742 13 Studenka-Butovice Czech Republic
- Department of Viticulture and Enology, Faculty of Horticulture Mendel University in Brno Valticka 337 CZ-691 44 Lednice Czech Republic
- Department of Biomedical and Environmental Analyses, Faculty of Pharmacy with Division of Laboratory Medicine Wroclaw Medical University Borowska 211 50-556 Wroclaw Poland
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Horky P, Venusova E, Aulichova T, Ridoskova A, Skladanka J, Skalickova S. Usability of graphene oxide as a mycotoxin binder: In vitro study. PLoS One 2020; 15:e0239479. [PMID: 32966310 PMCID: PMC7510967 DOI: 10.1371/journal.pone.0239479] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/07/2020] [Indexed: 12/18/2022] Open
Abstract
Mycotoxin management in agriculture is an essential challenge for maintaining the health of both animals and humans. Choosing the right adsorbent is still a question for many breeders and an important criterion for feed manufacturers. New adsorbents are still being sought. Graphene oxide is a promising material in the field of nanotechnology, which excels in its adsorption properties. Presented in vitro study investigates graphene oxide for the binding of mycotoxins from crushed wheat. The results show that graphene oxide has an adsorption capacity for aflatoxin 0.045 mg/g, zearalenone 0.53 mg/g and deoxynivalenol 1.69 mg/g at 37° C. In vitro simulation of crushed wheat digestion showed rapid adsorption during the gastric phase. Of the minerals, Mg, Cu and Zn were the most adsorbed. The applied dose of graphene oxide of 10 mg/g caused only a slight inhibition of the digestive enzymes α-amylase and trypsin compared to pepsin and gastric lipase. In vitro results indicated the suitability of graphene oxide in the adsorption of the aflatoxin, zearalenone and deoxynivalenol.
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Affiliation(s)
- Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska, Brno, Czech Republic
| | - Eva Venusova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska, Brno, Czech Republic
| | - Tereza Aulichova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska, Brno, Czech Republic
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Zemedelska, Brno, Czech Republic
- CEITEC—Central European Institute of Technology, Mendel University in Brno, Zemedelska, Brno, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska, Brno, Czech Republic
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska, Brno, Czech Republic
- * E-mail:
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Kociova S, Dolezelikova K, Horky P, Skalickova S, Baholet D, Bozdechova L, Vaclavkova E, Belkova J, Nevrkla P, Skladanka J, Do T, Zitka O, Haddad Y, Kopel P, Zurek L, Adam V, Smerkova K. Zinc phosphate-based nanoparticles as alternatives to zinc oxide in diet of weaned piglets. J Anim Sci Biotechnol 2020; 11:59. [PMID: 32528676 PMCID: PMC7282173 DOI: 10.1186/s40104-020-00458-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/08/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The high doses of zinc oxide (ZnO) administered orally to piglets for the prevention of diarrhea and increase of growth rate can contaminate pig farms and the surrounding environment. Therefore, there is a need to find a replacement of high doses of dietary ZnO with an equally effective alternative. In the present study, the effect of two formulations of zinc phosphate-based nanoparticles (ZnA and ZnC NPs) on growth performance, intestinal microbiota, antioxidant status, and intestinal and liver morphology was evaluated. A total of 100 weaned piglets were randomly divided into 10 equal groups with the base diet (control) or the base diet supplemented with ZnA, ZnC, or ZnO at concentrations 500, 1000, and 2000 mg Zn per kilogram of diet. Supplements were given to animals for 10 days. Fecal samples were collected on day 0, 5, 10 and 20. At the end of the treatment (day 10), three piglets from each group were sacrificed and analyzed. RESULTS Comparing to that of control, the significantly higher piglet weight gain was observed in all piglet groups fed with ZnA (P < 0.05). Differences in the total aerobic bacteria and coliform counts in piglet feces after NPs supplementation compared to that of control and ZnO groups were also found (P < 0.05). The majority of aerobic culturable bacteria from the feces represented Escherichia (28.57-47.62%), Enterococcus (3.85-35.71%), and Streptococcus (3.70-42.31%) spp. A total of 542 Escherichia coli isolates were screened for the virulence genes STa, STb, Stx2, F4, and F18. The substantial occurrence of E. coli virulence factors was found on day 5, mainly in fimbrillary antigen and thermostable toxins, except for piglets fed by ZnC. Zn treatment decreased Zn blood levels in piglets fed with ZnO and ZnA (500 mg/kg) and increased in ZnC (2000 mg/kg) compared to that of control (P < 0.05). The antioxidant status of piglets was affected only by ZnA. While some changes in the liver and the intestinal morphology of piglets with NPs were observed, none were serious as reflected by the normal health status and increased weigh gain performance. CONCLUSIONS Our results indicate that ZnA NPs have a positive effect on the piglet growth performance even at the lowest concentration. The prevalence of E. coli virulence factors was lowest in pigs supplemented with ZnC. Zinc phosphate-based nanoparticles may be an effective alternative to ZnO.
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Affiliation(s)
- Silvia Kociova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Kristyna Dolezelikova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Daria Baholet
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Lucie Bozdechova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Eva Vaclavkova
- Institute of Animal Science, Pratelstvi 815, CZ-104 00 Praha Uhrineves, Czech Republic
| | - Jaroslava Belkova
- Institute of Animal Science, Pratelstvi 815, CZ-104 00 Praha Uhrineves, Czech Republic
| | - Pavel Nevrkla
- Department of Animal Breeding, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Tomas Do
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Department of Inorganic Chemistry, Faculty of Science, Palacky University, 17. listopadu 12, CZ-771 46 Olomouc, Czech Republic
| | - Ludek Zurek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Center for Zoonoses, University of Veterinary and Pharmaceutical Sciences, Brno, Palackeho 1946/1, CZ-612 42 Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Kristyna Smerkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
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Skalickova S, Aulichova T, Venusova E, Skladanka J, Horky P. Development of pH-Responsive Biopolymeric Nanocapsule for Antibacterial Essential Oils. Int J Mol Sci 2020; 21:ijms21051799. [PMID: 32151081 PMCID: PMC7084736 DOI: 10.3390/ijms21051799] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/23/2020] [Accepted: 03/02/2020] [Indexed: 11/28/2022] Open
Abstract
It is generally believed that antibacterial essential oils have the potential to become one of the alternatives in preventing diarrheal diseases of monogastric animals. The disadvantage is their low efficiency per oral due to easy degradation during digestion in the stomach. This study compares the efficacy of chitosan, alginate-chitosan, guar gum-chitosan, xanthan gum-chitosan and pectin-chitosan nanocapsules to the synthesis of pH-responsive biopolymeric nanocapsule for Thymus vulgaris, Rosmarinus officinalis and Syzygium aromaticum essential oils. Using spectrophotometric approach and gas chromatography, release kinetics were determined in pH 3, 5.6 and 7.4. The growth rates of S. aureus and E. coli, as well as minimal inhibition concentration of essential oils were studied. The average encapsulation efficiency was 60%, and the loading efficiency was 70%. The size of the nanocapsules ranged from 100 nm to 500 nm. Results showed that chitosan-guar gum and chitosan-pectin nanocapsules released 30% of essential oils (EOs) at pH 3 and 80% at pH 7.4 during 3 h. Similar release kinetics were confirmed for thymol, eugenol and α-pinene. Minimal inhibition concentrations of Thymus vulgaris and Syzygium aromaticum essential oils ranged from 0.025 to 0.5%. Findings of this study suggest that the suitable pH-responsive nanocapsule for release, low toxicity and antibacterial activity is based on chitosan-guar gum structure.
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Horky P, Skalickova S, Smerkova K, Skladanka J. Essential Oils as a Feed Additives: Pharmacokinetics and Potential Toxicity in Monogastric Animals. Animals (Basel) 2019; 9:E352. [PMID: 31200591 PMCID: PMC6617186 DOI: 10.3390/ani9060352] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/05/2019] [Accepted: 06/09/2019] [Indexed: 01/28/2023] Open
Abstract
Essential oils (EOs) are now a hot topic in finding modern substitutes for antibiotics. Many studies have shown positive results and confirmed their high antibacterial activity both in vitro and in vivo. Deservedly, there is an attempt to use EOs as a substitute for antibiotics, which are currently limited by legislation in animal breeding. Given the potential of EOs, studies on their fate in the body need to be summarized. The content of EO's active substances varies depending on growing conditions and consequently on processing and storage. Their content also changes dynamically during the passage through the gastrointestinal tract and their effective concentration can be noticeably diluted at their place of action (small intestine and colon). Based on the solubility of the individual EO's active substances, they are eliminated from the body at different rates. Despite a strong antimicrobial effect, some oils can be toxic to the body and cause damage to the liver, kidneys, or gastrointestinal tissues. Reproductive toxicity has been reported for Origanum vulgare and Mentha arvensis. Several publications also address the effect on the genome. It has been observed that EOs can show both genoprotective effects (Syzygium aromaticum) and genotoxicity, as is the case of Cinnamomum camphor. This review shows that although oils are mainly studied as promising antimicrobials, it is also important to assess animal safety.
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Affiliation(s)
- Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
| | - Kristyna Smerkova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.
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Horky P, Skalickova S, Urbankova L, Baholet D, Kociova S, Bytesnikova Z, Kabourkova E, Lackova Z, Cernei N, Gagic M, Milosavljevic V, Smolikova V, Vaclavkova E, Nevrkla P, Knot P, Krystofova O, Hynek D, Kopel P, Skladanka J, Adam V, Smerkova K. Zinc phosphate-based nanoparticles as a novel antibacterial agent: in vivo study on rats after dietary exposure. J Anim Sci Biotechnol 2019; 10:17. [PMID: 30805185 PMCID: PMC6373129 DOI: 10.1186/s40104-019-0319-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 01/09/2019] [Indexed: 11/10/2022] Open
Abstract
Background Development of new nanomaterials that inhibit or kill bacteria is an important and timely research topic. For example, financial losses due to infectious diseases, such as diarrhea, are a major concern in livestock productions around the world. Antimicrobial nanoparticles (NPs) represent a promising alternative to antibiotics and may lower antibiotic use and consequently spread of antibiotic resistance traits among bacteria, including pathogens. Results Four formulations of zinc nanoparticles (ZnA, ZnB, ZnC, and ZnD) based on phosphates with spherical (ZnA, ZnB) or irregular (ZnC, ZnD) morphology were prepared. The highest in vitro inhibitory effect of our NPs was observed against Staphylococcus aureus (inhibitory concentration values, IC50, ranged from 0.5 to 1.6 mmol/L), followed by Escherichia coli (IC50 0.8-1.5 mmol/L). In contrast, methicillin resistant S. aureus (IC50 1.2-4.7 mmol/L) was least affected and this was similar to inhibitory patterns of commercial ZnO-based NPs and ZnO. After the successful in vitro testing, the in vivo study with rats based on dietary supplementation with zinc NPs was conducted. Four groups of rats were treated by 2,000 mg Zn/kg diet of ZnA, ZnB, ZnC, and ZnD, for comparison two groups were supplemented by 2,000 mg Zn/kg diet of ZnO-N and ZnO, and one group (control) was fed only by basal diet. The significantly higher (P < 0.05) Zn level in liver and kidney of all treated groups was found, nevertheless Zn NPs did not greatly influence antioxidant status of rats. However, the total aerobic and coliform bacterial population in rat feces significantly decreased (P < 0.05) in all zinc groups after 30 d of the treatment. Furthermore, when compared to the ZnO group, ZnA and ZnC nanoparticles reduced coliforms significantly more (P < 0.05). Conclusions Our results demonstrate that phosphate-based zinc nanoparticles have the potential to act as antibiotic agents.
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Affiliation(s)
- Pavel Horky
- 1Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Sylvie Skalickova
- 1Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Lenka Urbankova
- 1Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Daria Baholet
- 1Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Silvia Kociova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Zuzana Bytesnikova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Eliska Kabourkova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Zuzana Lackova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Natalia Cernei
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Milica Gagic
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Vedran Milosavljevic
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Vendula Smolikova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Eva Vaclavkova
- 4Institute of Animal Science, Komenskeho 1239, CZ-517 41 Kostelec nad Orlici, Czech Republic
| | - Pavel Nevrkla
- 5Department of Animal Breeding, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Pavel Knot
- 1Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Olga Krystofova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - David Hynek
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Pavel Kopel
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Jiri Skladanka
- 1Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Vojtech Adam
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Kristyna Smerkova
- 2Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic.,3Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
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Horky P, Skalickova S, Baholet D, Skladanka J. Nanoparticles as a Solution for Eliminating the Risk of Mycotoxins. Nanomaterials (Basel) 2018; 8:E727. [PMID: 30223519 PMCID: PMC6164963 DOI: 10.3390/nano8090727] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 12/21/2022]
Abstract
Mycotoxins are toxic secondary metabolites produced by certain filamentous fungi. The occurrence of mycotoxins in food and feed causes negative health impacts on both humans and animals. Clay binders, yeast cell walls, or antioxidant additives are the most widely used products for mycotoxin elimination to reduce their impact. Although conventional methods are constantly improving, current research trends are looking for innovative solutions. Nanotechnology approaches seem to be a promising, effective, and low-cost way to minimize the health effects of mycotoxins. This review aims to shed light on the critical knowledge gap in mycotoxin elimination by nanotechnology. There are three main strategies: mold inhibition, mycotoxin adsorption, and reducing the toxic effect via nanoparticles. One of the most promising methods is the use of carbon-based nanomaterials. Graphene has been shown to have a huge surface and high binding capacity for mycotoxins. Attention has also been drawn to polymeric nanoparticles; they could substitute adsorbents or enclose any substance, which would improve the health status of the organism. In light of these findings, this review gives new insights into possible future research that might overcome challenges associated with nanotechnology utilization for mycotoxin elimination from agricultural products.
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Affiliation(s)
- Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University, 61300 Brno, Czech Republic.
| | - Sylvie Skalickova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University, 61300 Brno, Czech Republic.
| | - Daria Baholet
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University, 61300 Brno, Czech Republic.
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University, 61300 Brno, Czech Republic.
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Urbankova L, Horky P, Skladanka J, Pribilova M, Smolikova V, Nevrkla P, Cernei N, Lackova Z, Hedbavny J, Ridoskova A, Adam V, Kopel P. Antioxidant status of rats' blood and liver affected by sodium selenite and selenium nanoparticles. PeerJ 2018; 6:e4862. [PMID: 29868274 PMCID: PMC5978387 DOI: 10.7717/peerj.4862] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/07/2018] [Indexed: 01/05/2023] Open
Abstract
Background Selenium is an essential element; however, at higher doses, it can be toxic. Therefore, alternative nanotechnological solutions are required to overcome toxicological issues, rather than conventional alternatives. Nanoparticles show new and promising properties that may be able to suppress toxicity while maintaining the positive effects of selenium on an organism. The aim of the experiment was to determine the influence of sodium selenite and selenium nanoparticles (SeNPs) on the antioxidant status of rats. Methods The males of the outbreed rat strain Wistar albino were selected as a model organism. Animals were fed different forms of selenium. The control group was given a mixture without selenium addition, whereas other groups were fed a mixture containing sodium selenite, Se-49, and Se-100 SeNPs respectively. The duration of the trial was 30 days. Results Analysis of blood and liver was performed where the concentration of reduced (GSH) and oxidised (GSSG) glutathione, and total selenium content were measured. In the liver, a significant reduction in GSSG was found for all experiment groups. Blood samples showed a significant reduction in GSH and an increase in GSSG. Discussion These results show that SeNPs may be an alternative to dietary selenium for animal organisms.
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Affiliation(s)
- Lenka Urbankova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Magdalena Pribilova
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Vendula Smolikova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Pavel Nevrkla
- Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Zuzana Lackova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Josef Hedbavny
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
| | - Pavel Kopel
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic.,Central European Institute of Technology, Technical University of Brno, Brno, Czech Republic
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Skladanka J, Adam V, Zitka O, Mlejnkova V, Kalhotka L, Horky P, Konecna K, Hodulikova L, Knotova D, Balabanova M, Slama P, Skarpa P. Comparison of Biogenic Amines and Mycotoxins in Alfalfa and Red Clover Fodder Depending on Additives. Int J Environ Res Public Health 2017; 14:ijerph14040418. [PMID: 28420109 PMCID: PMC5409619 DOI: 10.3390/ijerph14040418] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/09/2017] [Accepted: 04/10/2017] [Indexed: 01/28/2023]
Abstract
In the production of fermented feed, each crop can be contaminated with a variety of microorganisms that may produce natural pollutants. Biogenic amines, mycotoxins, and undesirable organic acids can decrease health feed safety. The aim of this study was to compare the counts of microorganisms, levels of biogenic amines, and the mycotoxins in forage legumes, and also to compare the occurrence of microorganisms and levels of mycotoxins in green fodder and subsequently produced silage and the influence of additives on the content of natural harmful substances in silage. The experimental plot was located in Troubsko and Vatín, in the Czech Republic. Two varieties of Medicago sativa and one variety of Trifolium pratense were compared. Green fodder and subsequently produced silage reaching up to 23% of dry matter were evaluated and prepared using a bio-enzymatic additive and a chemical additive. Green fodder of Medicago sativa was more contaminated by Enterococci than Trifolium pratense fodder. The obvious difference was determined by the quality of silage leachate. The silage prepared from Medicago sativa fodder was more contaminated with butyric acid. Fungi were present in higher counts in the anaerobic environment of green fodder and contaminated it with zearalenone and deoxynivalenol. Lower counts of fungi were found in silage, although the zearalenone content did not change. Lower content of deoxynivalenol was detected in silage, compared with green fodder. Silages treated with a chemical additive were found not to contain butyric acid. Lower ethanol content was determined, and the tendency to reduce the risk of biogenic amines occurrence was evident. The additives proved to have no influence on the content of mycotoxins.
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Affiliation(s)
- Jiri Skladanka
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Vojtech Adam
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Ondrej Zitka
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Veronika Mlejnkova
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Libor Kalhotka
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Pavel Horky
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Klara Konecna
- Research Institute for Fodder Crops, Ltd. Troubsko, Zahradni 1, 66441 Troubsko, Czech Republic.
| | - Lucia Hodulikova
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Daniela Knotova
- Research Institute for Fodder Crops, Ltd. Troubsko, Zahradni 1, 66441 Troubsko, Czech Republic.
| | - Marie Balabanova
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Petr Slama
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Petr Skarpa
- Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
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Cernei N, Lackova Z, Guran R, Hynek D, Skladanka J, Horky P, Zitka O, Adam V. Determination of Histamine in Silages Using Nanomaghemite Core (γ-Fe₂O₃)-Titanium Dioxide Shell Nanoparticles Off-Line Coupled with Ion Exchange Chromatography. Int J Environ Res Public Health 2016; 13:ijerph13090904. [PMID: 27626434 PMCID: PMC5036737 DOI: 10.3390/ijerph13090904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/19/2016] [Accepted: 09/05/2016] [Indexed: 12/26/2022]
Abstract
The presence of biogenic amines is a hallmark of degraded food and its products. Herein, we focused on the utilization of magnetic nanoparticles off-line coupled with ion exchange chromatography with post-column ninhydrin derivatization and Vis detection for histamine (Him) separation and detection. Primarily, we described the synthesis of magnetic nanoparticles with nanomaghemite core (γ-Fe2O3) functionalized with titanium dioxide and, then, applied these particles to specific isolation of Him. To obtain further insight into interactions between paramagnetic particles’ (PMP) surface and Him, a scanning electron microscope was employed. It was shown that binding of histamine causes an increase of relative current response of deprotonated PMPs, which confirmed formation of Him-PMPs clusters. The recovery of the isolation showed that titanium dioxide-based particles were able to bind and preconcentrate Him with recovery exceeding 90%. Finally, we successfully carried out the analyses of real samples obtained from silage. We can conclude that our modified particles are suitable for Him isolation, and thus may serve as the first isolation step of Him from biological samples, as it is demonstrated on alfalfa seed variety Tereza silage.
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Affiliation(s)
- Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Zuzana Lackova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Roman Guran
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - David Hynek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, 61600 Brno, Czech Republic.
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Horký P, Skladanka J, Nevrkla P, Slama P. 16. Effect of Diet Supplemented with Antioxidants (Selenium, Copper, Vitamins E and C) on Antioxidant Status and Ejaculate Quality of Breeding Boars. Annals of Animal Science 2016. [DOI: 10.1515/aoas-2015-0085] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The aim of the experiment was to determine the effect of selected antioxidants (selenium, copper, vitamins E and C) on the antioxidant status of breeding boar ejaculate and ejaculate quality. In the first control group of boars (n = 10), the amount of antioxidants was not increased in feed. The second experimental group (n = 10) received the addition of selenium (0.5 mg/kg of diet), copper (10 mg/kg of diet), vitamin C (350 mg/kg of diet) and vitamin E (70 mg/kg of diet) in feed. The experiment lasted for 90 days. The addition of antioxidants increased GPx (by 28%), selenium content (by 49%; P<0.05), SOD (by 9%; P<0.05) and level of copper (by 63%; P<0.05) in the experimental group of boars. In the control group, the decrease of sperm motility (by 22%; P<0.05) was found at the end of the experiment. Other measured parameters such as ABTS antioxidant capacity, levels of MDA, metallothionein, zinc, ejaculate volume, concentration, total count of sperm and percentage of abnormal sperm cells were not significantly affected. The above mentioned results show that the addition of antioxidants does not increase the ejaculate quality but their lack can damage the quality indicators of boar ejaculate.
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Affiliation(s)
- Pavel Horký
- Department of Animal Nutrition and Forage Production
| | | | | | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
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Horky P, Sochor J, Skladanka J, Klusonova I, Nevrkla P. Effect of selenium, vitamins E and C on antioxidant potential and quality of boar ejaculate. J Anim Feed Sci 2016. [DOI: 10.22358/jafs/65584/2016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mlejnkova V, Horky P, Kominkova M, Skladanka J, Hodulikova L, Adam V, Mlcek J, Jurikova T, Sochor J. Biogenic amines and hygienic quality of lucerne silage. Open Life Sci 2016. [DOI: 10.1515/biol-2016-0037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis experiment examined the influence of two different silage additives of biological (Lactococcus lactis, Lactobacillus plantarum, Enterococcus faecium, enzyme xylanase) and chemical (43% formic acid, 30% ammonium formate, 10% propionic acid, 2% benzoic acid) types on biogenic amines concentration, nutrient content, fermentation process, and microbiologic indicators in lucerne (Medicago sativa) silage after 90 days of fermentation. The biological additive significantly (P < 0.05) increased putrescine (+51%), lactic acid (+11%) and protein content (+11%) in comparison with control silage. It significantly decreased cadaverine (−29%), histamine (−57%), spermidine (−15%), spermine (−55%), acetic acid (−40%), ethanol (−55%), ammonium (−25%) and ash (−9%). After the chemical-additive treatment, greater amounts of histamine and tyramine were recorded. Significant decrease was observed in the concentrations of putrescine (−18%), cadaverine (−55%), spermidine (−47%), spermine (−45%), lactic acid (−16%), acetic acid (−46%), ammonium (−59%), ash (−13%) and fat (−24%). Populations of bacteria associated with lactic acid fermentation, moulds, yeasts, enterobacteria and total microorganisms count were also influenced. Both biological and chemical additives can be highly recommended for producing high-quality silages meeting hygienic requirements. In lucerne silage, the chemical preservative showed a stronger effect in achieving the health safety of silage compared to the biological inoculant.
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Affiliation(s)
- Veronika Mlejnkova
- 1Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Pavel Horky
- 1Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Marketa Kominkova
- 2Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
- 3Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Jiri Skladanka
- 1Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Lucia Hodulikova
- 1Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Vojtech Adam
- 2Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic
| | - Jiri Mlcek
- 4Tomas Bata University in Zlin, Faculty of Technology, Department of Food Analysis and Chemistry, T.G.Masaryk Sq. 275, 762 72 Zlin, Czech Republic
| | - Tunde Jurikova
- 5Constantine the Philosopher University in Nitra, Faculty of Central European Studies, Institute for Teachers Training, Drazovska 4, SK-949 74 Nitra, Slovak Republic
| | - Jiri Sochor
- 6Department of Viticulture and Enology, Faculty of Horticulture, Mendel University in Brno, Valtická 337, CZ-691 44 Lednice, Czech Republic
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Skladanka J, Adam V, Dolezal P, Nedelnik J, Kizek R, Linduskova H, Alba Mejia JE, Nawrath A. How do grass species, season and ensiling influence mycotoxin content in forage? Int J Environ Res Public Health 2013; 10:6084-95. [PMID: 24225645 PMCID: PMC3863888 DOI: 10.3390/ijerph10116084] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 10/31/2013] [Accepted: 11/01/2013] [Indexed: 12/03/2022]
Abstract
Mycotoxins are secondary metabolites produced by fungal species that have harmful effects on mammals. The aim of this study was to assess the content of mycotoxins in fresh-cut material of selected forage grass species both during and at the end of the growing season. We further assessed mycotoxin content in subsequently produced first-cutting silages with respect to the species used in this study: Lolium perenne (cv. Kentaur), Festulolium pabulare (cv. Felina), Festulolium braunii (cv. Perseus), and mixtures of these species with Festuca rubra (cv. Gondolin) or Poa pratensis (Slezanka). The mycotoxins deoxynivalenol, zearalenone and T-2 toxin were mainly detected in the fresh-cut grass material, while fumonisin and aflatoxin contents were below the detection limits. July and October were the most risky periods for mycotoxins to occur. During the cold temperatures in November and December, the occurrence of mycotoxins in fresh-cut material declined. Although June was a period with low incidence of mycotoxins in green silage, contents of deoxynivalenol and zearalenone in silages from the first cutting exceeded by several times those determined in their biomass collected directly from the field. Moreover, we observed that use of preservatives or inoculants did not prevent mycotoxin production.
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Affiliation(s)
- Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic; E-Mails: (P.D.); (J.E.A.M.); (A.N.)
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic; E-Mails: (V.A.); (R.K.)
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic
| | - Petr Dolezal
- Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic; E-Mails: (P.D.); (J.E.A.M.); (A.N.)
| | - Jan Nedelnik
- Research Institute for Fodder Crops, Ltd. Troubsko, Zahradni 1, Troubsko CZ-664 41, Czech Republic; E-Mails: (J.N.); (H.L.)
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic; E-Mails: (V.A.); (R.K.)
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, Brno CZ-616 00, Czech Republic
| | - Hana Linduskova
- Research Institute for Fodder Crops, Ltd. Troubsko, Zahradni 1, Troubsko CZ-664 41, Czech Republic; E-Mails: (J.N.); (H.L.)
| | - Jhonny Edison Alba Mejia
- Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic; E-Mails: (P.D.); (J.E.A.M.); (A.N.)
| | - Adam Nawrath
- Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, Brno CZ-613 00, Czech Republic; E-Mails: (P.D.); (J.E.A.M.); (A.N.)
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Skladanka J, Adam V, Zitka O, Krystofova O, Beklova M, Kizek R, Havlicek Z, Slama P, Nawrath A. Investigation into the effect of molds in grasses on their content of low molecular mass thiols. Int J Environ Res Public Health 2012. [PMID: 23202817 PMCID: PMC3524598 DOI: 10.3390/ijerph9113789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The aim of this study was to investigate the effect of molds on levels of low molecular mass thiols in grasses. For this purpose, the three grass species Lolium perenne, Festulolium pabulare and Festulolium braunii were cultivated and sampled during four months, from June to September. The same species were also grown under controlled conditions. High-performance liquid chromatography with electrochemical detection was used for quantification of cysteine, reduced (GSH) and oxidized (GSSG) glutathione, and phytochelatins (PC2, PC3, PC4 and PC5). Data were statistically processed and analyzed. Thiols were present in all examined grass species. The effect of fungicide treatments applied under field conditions on the content of the evaluated thiols was shown to be insignificant. Species influenced (p < 0.05) PC3 and GSSG content. F. pabulare, an intergeneric hybrid of drought- and fungi-resistant Festuca arundinacea, was comparable in PC3 content with L. perenne and F. braunii under field conditions. Under controlled conditions, however, F. pabulare had higher (p < 0.05) PC3 content than did L. perenne and F. braunii. Under field conditions, differences between the evaluated species were recorded only in GSSG content, but only sampling in June was significant. F. pabulare had higher (p < 0.05) GSSG content in June than did L. perenne and F. braunii.
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Affiliation(s)
- Jiri Skladanka
- Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic;
- Author to whom correspondence should be addressed; ; Tel.: +420-5-4513-3079; Fax: +420-5-4521-2044
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (V.A.); (O.Z.); (O.K.); (R.K.)
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (V.A.); (O.Z.); (O.K.); (R.K.)
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
- Department of Veterinary Ecology and Environmental Protection, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Palackeho 1–3, CZ-612 42 Brno, Czech Republic; (M.B.)
| | - Olga Krystofova
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (V.A.); (O.Z.); (O.K.); (R.K.)
| | - Miroslava Beklova
- Department of Veterinary Ecology and Environmental Protection, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Palackeho 1–3, CZ-612 42 Brno, Czech Republic; (M.B.)
| | - Rene Kizek
- Department of Chemistry and Biochemistry, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (V.A.); (O.Z.); (O.K.); (R.K.)
- Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic
| | - Zdenek Havlicek
- Department of Animal Morphology, Physiology and Genetics, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (Z.H.); (P.S.)
| | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; (Z.H.); (P.S.)
| | - Adam Nawrath
- Department of Animal Nutrition and Forage Production, Faculty of Agronomy, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic;
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