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Microbiological Quality of Raw Donkey Milk from Serbia and Its Antibacterial Properties at Pre-Cooling Temperature. Animals (Basel) 2023; 13:ani13030327. [PMID: 36766215 PMCID: PMC9913105 DOI: 10.3390/ani13030327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/18/2023] Open
Abstract
The aim of this study was to examine the microbiological quality of raw donkey milk of an indigenous Serbian breed as well as the changes in the microbial populations during storage at 4 °C. In addition, antibacterial activity of donkey milk against E. coli, L. monocytogenes and S. aureus at 15 °C as well as the content of the two main antibacterial proteins lysozyme and lactoferrin were investigated. Microbiological examination of 137 individual milk samples collected over a period of 21 months showed good microbiological quality since foodborne pathogens such as Salmonella spp. and L. monocytogenes were not detected in any of the analyzed samples, while the number of E. coli, Enterobacteriaceae, total coliform bacteria, sulfite-reducing Clostridia and aerobic sporogenic bacteria was below the limit of quantification (<1 cfu mL-1). During the six-days storage at 4 °C, total bacterial counts and the counts of lactic acid bacteria remained at the initial level while pathogenic bacteria were not detected. The strongest antibacterial activity of the tested milk was observed against E. coli, while S. aureus was the least sensitive to milk antibacterial compounds. Although further research is needed to fully elucidate the antibacterial mechanism and synergistic activity of different compounds in donkey milk, the high content lysozyme (2.63 ± 0.03 g L-1) and lactoferrin (15.48 mg L-1) observed in tested milk could contribute to its strong antibacterial activity and extension of the storage period during which it can be safely consumed.
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Pankova SM, Sakibaev FA, Holyavka MG, Vyshkvorkina YM, Lukin AN, Artyukhov VG. Studies of the Processes of the Trypsin Interactions with Ion Exchange Fibers and Chitosan. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1068162021030146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Microfluidic strategies for sample separation and rapid detection of food allergens. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Ergenoğlu B, Ertekin Ö, Pirinçci Göktürk ŞŞ, Dinç GG, Akçael E, Bağirova M, Yücel F. ELISA-based competitive trypsin inhibition assay. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1977697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Bengü Ergenoğlu
- Bioengineering Department, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Esenler, Istanbul, Turkey
- The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center, Genetic Engineering and Biotechnology Institute, Gebze, Kocaeli, Turkey
| | - Özlem Ertekin
- The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center, Genetic Engineering and Biotechnology Institute, Gebze, Kocaeli, Turkey
| | - Şerife Şeyda Pirinçci Göktürk
- The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center, Genetic Engineering and Biotechnology Institute, Gebze, Kocaeli, Turkey
| | - Göknur Gizem Dinç
- The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center, Genetic Engineering and Biotechnology Institute, Gebze, Kocaeli, Turkey
| | - Esin Akçael
- The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center, Genetic Engineering and Biotechnology Institute, Gebze, Kocaeli, Turkey
| | - Melahat Bağirova
- Microbiology Department, The V. Akhundov Scientific Research Medical Preventive Institute, Baku, Azerbaijan Republic
| | - Fatıma Yücel
- The Scientific and Technological Research Council of Turkey (TÜBİTAK), Marmara Research Center, Genetic Engineering and Biotechnology Institute, Gebze, Kocaeli, Turkey
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Kuťka Hlozáková T, Gregová E, Šliková S, Gálová Z, Chňapek M, Drábeková J. Determination of HMW - GS in wheat using SDS - PAGE and Lab-on-chip methods. POTRAVINARSTVO 2019. [DOI: 10.5219/995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
SDS-PAGE is widely used to determine the amounts of the different gluten protein types. However, this method is time-consuming, especially at early stages of wheat breeding, when large number of samples needs to be analyzed. On the other hand, LoC (Lab-on-Chip) technique has the potential for a fast, reliable, and automatable analysis of proteins. Benefits and limitations of Lab-on-Chip method over SDS-PAGE method in gluten proteins evaluation were explored in order to determine in which way LoC method should be improved in order to make its results more compliant with the results of SDS-PAGE. Chip electrophoresis provides a very good reproducibility of HMW-GS patterns. Moreover this approach is much faster than the conventional SDS-PAGE methods requiring several hours for an analysis. Another advantage over traditional gel electrophoresis is lower sample and reagent volume requirements, as well as specialized protein standards for accurate reproducibility and quantification. In the present study, we identified novel complex allele located at the locus Glu-1B.
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Novaković A, Karaman M, Milovanović I, Torbica A, Tomić J, Pejin B, Sakač M. Nutritional and phenolic profile of small edible fungal species Coprinellus disseminatus (pers.) J.E. Lange 1938. FOOD AND FEED RESEARCH 2018. [DOI: 10.5937/ffr1802119n] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Purification and Quantification of Kunitz Trypsin Inhibitor in Soybean Using Two-Dimensional Liquid Chromatography. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0902-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Golo PS, Dos Santos ASDO, Monteiro CMO, Perinotto WMDS, Quinelato S, Camargo MG, de Sá FA, Angelo IDC, Martins MF, Prata MCDA, Bittencourt VREP. Lab-on-a-chip and SDS-PAGE analysis of hemolymph protein profile from Rhipicephalus microplus (Acari: Ixodidae) infected with entomopathogenic nematode and fungus. Parasitol Res 2016; 115:3459-68. [PMID: 27174026 DOI: 10.1007/s00436-016-5109-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 05/02/2016] [Indexed: 11/24/2022]
Abstract
In the present study, lab-on-a-chip electrophoresis (LoaC) was suggested as an alternative method to the conventional polyacrylamide gel electrophoresis under denaturing conditions (SDS-PAGE) to analyze raw cell-free tick hemolymph. Rhipicephalus microplus females were exposed to the entomopathogenic fungus Metarhizium anisopliae senso latu IBCB 116 strain and/or to the entomopathogenic nematode Heterorhabditis indica LPP1 strain. Hemolymph from not exposed or exposed ticks was collected 16 and 24 h after exposure and analyze by SDS-PAGE or LoaC. SDS-PAGE yielded 15 bands and LoaC electrophoresis 17 bands. Despite the differences in the number of bands, when the hemolymph protein profiles of exposed or unexposed ticks were compared in the same method, no suppressing or additional bands were detected among the treatments regardless the method (i.e., SDS-PAGE or chip electrophoresis using the Protein 230 Kit®). The potential of LoaC electrophoresis to detect protein bands from tick hemolymph was considered more efficient in comparison to the detection obtained using the traditional SDS-PAGE method, especially when it comes to protein subunits heavier than 100 KDa. LoaC electrophoresis provided a very good reproducibility, and is much faster than the conventional SDS-PAGE method, which requires several hours for one analysis. Despite both methods can be used to analyze tick hemolymph composition, LoaC was considered more suitable for cell-free hemolymph protein separation and detection. LoaC hemolymph band percent data reported changes in key proteins (i.e., HeLp and vitellogenin) exceptionally important for tick embryogenesis. This study reported, for the first time, tick hemolymph protein profile using LoaC.
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Affiliation(s)
- Patrícia Silva Golo
- Programa de Pós-graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, 23890-000, Seropédica, RJ, Brazil.
| | | | - Caio Marcio Oliveira Monteiro
- Programa de Pós-graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, 23890-000, Seropédica, RJ, Brazil.,Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n - Campus Universitário Bairro Martelos, 36036-330, Juiz de Fora, MG, Brazil.,Programa de Pós-graduação em Cência Animal da Universidade Federal de Goiás, Avenida Esperança, s/n, Campus Samambaia, 74690-900, Goiânia, GO, Brazil
| | - Wendell Marcelo de Souza Perinotto
- Faculdade de Medicina Veterinária, Mestrado em Biociência Animal, Universidade de Cuiabá, Avenida Beira Rio, 3100 Jardim Europa, 78015-480, Cuiabá, MT, Brazil
| | - Simone Quinelato
- Fundação Osvaldo Cruz, Coleção de Culturas de Fungos Filamentosos, Pavilhão Rocha Lima - sala 525. Avenida Brasil, 4365 Manguinhos, 21040-900, Rio de Janeiro, RJ, Brazil
| | - Mariana Guedes Camargo
- Programa de Pós-graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, 23890-000, Seropédica, RJ, Brazil
| | - Fillipe Araujo de Sá
- Curso de Pós-Graduação em Química Biológica, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho, 373, 21941-902, Rio de Janeiro, RJ, Brazil
| | - Isabele da Costa Angelo
- Programa de Pós-graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, 23890-000, Seropédica, RJ, Brazil
| | - Marta Fonseca Martins
- Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610 Bairro Dom Bosco, 36038-330, Juiz de Fora, Minas Gerais, Brazil
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Ferey L, Delaunay N. Food Analysis on Electrophoretic Microchips. SEPARATION AND PURIFICATION REVIEWS 2015. [DOI: 10.1080/15422119.2015.1014049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Benefits and Limitations of Lab-on-a-Chip Method over Reversed-Phase High-Performance Liquid Chromatography Method in Gluten Proteins Evaluation. J CHEM-NY 2015. [DOI: 10.1155/2015/430328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
RP-HPLC (reversed-phase high-performance liquid chromatography) is widely used to determine the amounts of the different gluten protein types. However, this method is time-consuming, especially at early stages of wheat breeding, when large number of samples needs to be analyzed. On the other hand, LoaC (Lab-on-a-Chip) technique has the potential for a fast, reliable, and automatable analysis of proteins. In the present study, benefits and limitations of Lab-on-a-Chip method over RP-HPLC method in gluten proteins evaluation were explored in order to determine in which way LoaC method should be improved in order to make its results more compliant with the results of RP-HPLC method. Strong correlation (P≤0.001) was found between numbers of HMW glutenin peaks determined by LoaC and RP-HPLC methods. Significant correlations (P≤0.05) were obtained between percentages of HMW and LMW glutenin subunits calculated with regard to total HMW + LMW area. Even more significant correlation (P≤0.001) was found when percentages of individual HMW areas were calculated with regard to total HMW. RP-HPLC method showed superiority in determination of gliadins since larger number and better resolution of gliadin peaks were obtained by this method.
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Janić Hajnal E, Tomić J, Torbica A, Rakita S, Pojić M, Živančev D, Hadnađev M, Dapčević Hadnađev T. Content of free amino groups during postharvest wheat and flour maturation in relation to gluten quality. Food Chem 2014; 164:158-65. [DOI: 10.1016/j.foodchem.2014.05.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 03/20/2014] [Accepted: 05/12/2014] [Indexed: 11/24/2022]
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Šarić LĆ, Šarić BM, Mandić AI, Kevrešan ŽS, Ikonić BB, Kravić SŽ, Jambrec DJ. Role of calcium content in antibacterial activity of donkeys’ milk toward E. coli. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-014-2299-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Tomić J, Pojić M, Torbica A, Rakita S, Živančev D, Janić Hajnal E, Dapčević Hadnađev T, Hadnađev M. Changes in the content of free sulphydryl groups during postharvest wheat and flour maturation and their influence on technological quality. J Cereal Sci 2013. [DOI: 10.1016/j.jcs.2013.09.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Popović L, Peričin D, Vaštag Ž, Popović S, Krimer V, Torbica A. Antioxidative and Functional Properties of Pumpkin Oil Cake Globulin Hydrolysates. J AM OIL CHEM SOC 2013. [DOI: 10.1007/s11746-013-2257-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Proteolysis and biogenic amines formation during the ripening of Petrovská klobása, traditional dry-fermented sausage from Northern Serbia. Food Control 2013. [DOI: 10.1016/j.foodcont.2012.06.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nikolić Z, Đorđević V, Torbica A, Mikić A. Legumes seed storage proteins characterization by SDS-PAGE and Lab-on-a-Chip electrophoresis. J Food Compost Anal 2012. [DOI: 10.1016/j.jfca.2012.08.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Šarić LĆ, Šarić BM, Mandić AI, Torbica AM, Tomić JM, Cvetković DD, Okanović ĐG. Antibacterial properties of Domestic Balkan donkeys’ milk. Int Dairy J 2012. [DOI: 10.1016/j.idairyj.2012.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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