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Critical analytical review: Rare and recent applications of refractive index detector in HPLC chromatographic drug analysis. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107339] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pismennõi D, Kiritsenko V, Marhivka J, Kütt ML, Vilu R. Development and Optimisation of HILIC-LC-MS Method for Determination of Carbohydrates in Fermentation Samples. Molecules 2021; 26:3669. [PMID: 34208735 PMCID: PMC8235229 DOI: 10.3390/molecules26123669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/10/2021] [Accepted: 06/12/2021] [Indexed: 11/28/2022] Open
Abstract
Saccharides are the most common carbon source for Streptococcus thermophilus, which is a widely used bacterium in the production of fermented dairy products. The performance of the strain is influenced by the consumption of different saccharides during fermentation. Therefore, a precise measurement of the concentrations of saccharides in the fermentation media is essential. An 18-min long method with limits of quantitation in the range of 0.159-0.704 mg/L and with 13C labelled internal standards employing hydrophilic interaction chromatography coupled to mass spectrometric detection-(HILIC-LC-MS) allowed for simultaneous quantification of five saccharides: fructose, glucose, galactose, sucrose, and lactose in the fermentation samples. The method included a four-step sample preparation protocol, which could be easily applied to high-throughput analysis. The developed method was validated and applied to the fermentation samples produced by Streptococcus thermophilus.
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Affiliation(s)
- Dmitri Pismennõi
- Center of Food and Fermentation Technologies (TFTAK), Akadeemia tee 15A, 12618 Tallinn, Estonia; (V.K.); (J.M.); (M.-L.K.); (R.V.)
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Vassili Kiritsenko
- Center of Food and Fermentation Technologies (TFTAK), Akadeemia tee 15A, 12618 Tallinn, Estonia; (V.K.); (J.M.); (M.-L.K.); (R.V.)
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Jaroslav Marhivka
- Center of Food and Fermentation Technologies (TFTAK), Akadeemia tee 15A, 12618 Tallinn, Estonia; (V.K.); (J.M.); (M.-L.K.); (R.V.)
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Mary-Liis Kütt
- Center of Food and Fermentation Technologies (TFTAK), Akadeemia tee 15A, 12618 Tallinn, Estonia; (V.K.); (J.M.); (M.-L.K.); (R.V.)
| | - Raivo Vilu
- Center of Food and Fermentation Technologies (TFTAK), Akadeemia tee 15A, 12618 Tallinn, Estonia; (V.K.); (J.M.); (M.-L.K.); (R.V.)
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Wienberg F, Hövels M, Kosciow K, Deppenmeier U. High-resolution method for isocratic HPLC analysis of inulin-type fructooligosaccharides. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1172:122505. [PMID: 33895646 DOI: 10.1016/j.jchromb.2020.122505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 02/04/2023]
Abstract
In recent decades, strategies to improve human health by modulating the gut microbiota have developed rapidly. One of the most prominent is the use of prebiotics, which can lead to a higher abundance of health-promoting microorganisms in the gut. Currently, oligosaccharides dominate the prebiotic sector due to their ability to promote the growth and activity of probiotic bacteria selectively. Extensive efforts are made to develop effective production strategies for the synthesis of prebiotic oligosaccharides, including the use of microbial enzymes. Within the genus Lactobacillus, several inulosucrases have been identified, which are suitable for the synthesis of prebiotic inulin-type fructooligosaccharides (inulin-FOS). In this study, a truncated version of the inulosucrase from Lactobacillus gasseri DSM 20604 was used for the efficient synthesis of inulin-FOS. Product titers of 146.2 ± 7.4 g inulin-FOSL-1 were achieved by the catalytic activity of the purified recombinant protein InuGB-V3. A time and resource-saving HPLC method for rapid analysis of inulin-FOS in isocratic mode was developed and optimized, allowing baseline separated analysis of inulin-FOS up to a degree of polymerization (DP) of five in less than six minutes. Long-chain inulin-FOS with a DP of 17 can be analyzed in under 45 min. The developed method offers the advantages of isocratic HPLC analysis, such as low flow rates, high sensitivity, and the use of a simple, inexpensive chromatographic setup. Furthermore, it provides high-resolution separation of long-chain inulin-FOS, which can usually only be achieved with gradient systems.
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Affiliation(s)
- Franziska Wienberg
- Institute for Microbiology and Biotechnology, University of Bonn, 53115, Germany
| | - Marcel Hövels
- Institute for Microbiology and Biotechnology, University of Bonn, 53115, Germany
| | - Konrad Kosciow
- Institute for Microbiology and Biotechnology, University of Bonn, 53115, Germany
| | - Uwe Deppenmeier
- Institute for Microbiology and Biotechnology, University of Bonn, 53115, Germany.
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Ojwach J, Kumar A, Mutanda T, Mukaratirwa S. Fructosyltransferase and inulinase production by indigenous coprophilous fungi for the biocatalytic conversion of sucrose and inulin into oligosaccharides. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ojwach J, Kumar A, Mukaratirwa S, Mutanda T. Purification and biochemical characterization of an extracellular fructosyltransferase enzyme from Aspergillus niger sp. XOBP48: implication in fructooligosaccharide production. 3 Biotech 2020; 10:459. [PMID: 33088656 DOI: 10.1007/s13205-020-02440-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/15/2020] [Indexed: 11/26/2022] Open
Abstract
An extracellular fructosyltransferase (Ftase) enzyme with a molar mass of ≈70 kDa from a newly isolated indigenous coprophilous fungus Aspergillus niger sp. XOBP48 is purified to homogeneity and characterized in this study. The enzyme was purified to 4.66-fold with a total yield of 15.53% and specific activity of 1219.17 U mg-1 of protein after a three-step procedure involving (NH4)2SO4 fractionation, dialysis and anion exchange chromatography. Ftase showed optimum activity at pH 6.0 and temperature 50 °C. Ftase exhibited over 80% residual activity at pH range of 4.0-10.0 and ≈90% residual activity at temperature range of 40-60 °C for 6 h. Metal ion inhibitors Hg2+ and Ag+ significantly inhibited Ftase activity at 1 mmol concentration. Ftase showed K m, v max and k cat values of 79.51 mmol, 45.04 µmol min-1 and 31.5 min-1, respectively, with a catalytic efficiency (k cat/K m) of 396 µmol-1 min-1 for the substrate sucrose. HPLC-RI experiments identified the end products of fructosyltransferase activity as monomeric glucose, 1-kestose (GF2), and 1,1-kestotetraose (GF3). This study evaluates the feasibility of using this purified extracellular Ftase for the enzymatic synthesis of biofunctional fructooligosaccharides.
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Affiliation(s)
- Jeff Ojwach
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban, 4000 South Africa
| | - Ajit Kumar
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban, 4000 South Africa
| | - Samson Mukaratirwa
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban, 4000 South Africa
- Present Address: One Health Center for Zoonoses and Tropical Veterinary Medicine, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
| | - Taurai Mutanda
- Department of Nature Conservation, Faculty of Natural Sciences, Centre for Algal Biotechnology, Mangosuthu University of Technology, P.O. Box 12363, Jacobs 4026, Durban, South Africa
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Towards smart biomanufacturing: a perspective on recent developments in industrial measurement and monitoring technologies for bio-based production processes. J Ind Microbiol Biotechnol 2020; 47:947-964. [PMID: 32895764 PMCID: PMC7695667 DOI: 10.1007/s10295-020-02308-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/31/2020] [Indexed: 12/22/2022]
Abstract
The biomanufacturing industry has now the opportunity to upgrade its production processes to be in harmony with the latest industrial revolution. Technology creates capabilities that enable smart manufacturing while still complying with unfolding regulations. However, many biomanufacturing companies, especially in the biopharma sector, still have a long way to go to fully benefit from smart manufacturing as they first need to transition their current operations to an information-driven future. One of the most significant obstacles towards the implementation of smart biomanufacturing is the collection of large sets of relevant data. Therefore, in this work, we both summarize the advances that have been made to date with regards to the monitoring and control of bioprocesses, and highlight some of the key technologies that have the potential to contribute to gathering big data. Empowering the current biomanufacturing industry to transition to Industry 4.0 operations allows for improved productivity through information-driven automation, not only by developing infrastructure, but also by introducing more advanced monitoring and control strategies.
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Cortés-Herrera C, Artavia G, Leiva A, Granados-Chinchilla F. Liquid Chromatography Analysis of Common Nutritional Components, in Feed and Food. Foods 2018; 8:E1. [PMID: 30577557 PMCID: PMC6352167 DOI: 10.3390/foods8010001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/28/2018] [Accepted: 11/05/2018] [Indexed: 12/20/2022] Open
Abstract
Food and feed laboratories share several similarities when facing the implementation of liquid-chromatographic analysis. Using the experience acquired over the years, through application chemistry in food and feed research, selected analytes of relevance for both areas were discussed. This review focused on the common obstacles and peculiarities that each analyte offers (during the sample treatment or the chromatographic separation) throughout the implementation of said methods. A brief description of the techniques which we considered to be more pertinent, commonly used to assay such analytes is provided, including approaches using commonly available detectors (especially in starter labs) as well as mass detection. This manuscript consists of three sections: feed analysis (as the start of the food chain); food destined for human consumption determinations (the end of the food chain); and finally, assays shared by either matrices or laboratories. Analytes discussed consist of both those considered undesirable substances, contaminants, additives, and those related to nutritional quality. Our review is comprised of the examination of polyphenols, capsaicinoids, theobromine and caffeine, cholesterol, mycotoxins, antibiotics, amino acids, triphenylmethane dyes, nitrates/nitrites, ethanol soluble carbohydrates/sugars, organic acids, carotenoids, hydro and liposoluble vitamins. All analytes are currently assayed in our laboratories.
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Affiliation(s)
- Carolina Cortés-Herrera
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, Ciudad Universitaria Rodrigo Facio 11501-2060, Costa Rica.
| | - Graciela Artavia
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, Ciudad Universitaria Rodrigo Facio 11501-2060, Costa Rica.
| | - Astrid Leiva
- Centro de Investigación en Nutrición Animal, Universidad de Costa Rica, Ciudad Universitaria Rodrigo 11501-2060, Costa Rica.
| | - Fabio Granados-Chinchilla
- Centro de Investigación en Nutrición Animal, Universidad de Costa Rica, Ciudad Universitaria Rodrigo 11501-2060, Costa Rica.
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Production of impure prebiotic galacto-oligosaccharides and their effect on calcium, magnesium, iron and zinc absorption in Sprague-Dawley rats. PHARMANUTRITION 2016. [DOI: 10.1016/j.phanu.2016.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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