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Extracellular β-d-fructofuranosidase from a novel Aspergillus sp. DHE1 with high potential for biotechnological applications: Purification and biochemical characterization. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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2
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The Influence of Yarrowia lipolytica Glycosylation on the Biochemical Properties and Oligomerization of Heterologous Invertase. SUSTAINABILITY 2022. [DOI: 10.3390/su14137926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Invertases are important enzymes used in the food industry. Despite many studies on the invertase-encoding SUC2 gene expression in the industrial yeast Yarrowia lipolytica, no biochemical characteristics of this enzyme expressed as heterologous protein have been provided. Here, two isoforms of extracellular invertase produced by Y. lipolytica were detected using ion-exchange chromatography. Specific activities of 226.45 and 432.66 U/mg for the first and second isoform, respectively, were determined. Basic characteristics of this enzyme were similar to the one isolated from Saccharomyces cerevisiae (optimum pH and temperature, metal ions inhibition, substrate specificity and fructooligosaccharides (FOS) biosynthesis). The apparent differences were higher KM for sucrose (67 mM) and lower molecular mass (66 kDa) resulting from lower N-glycosylation level (9.1% of mass). The N-glycan structures determined by MALDI-TOF and HPLC represented high mannose structures, though with much shorter chains than hypermannosylated glycans from S. cerevisiae. Furthermore, galactose was detected as the modifying sugar in the glycan structures of invertase expressed in Y. lipolytica. N-glycans did not affect invertase activity but were important for its oligomerization. The expressed enzyme aggregated into dimers, tetramers, hexamers, and octamers, as well as structures of higher molecular mass, which might be decamers, which have not been described so far in the literature.
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Martínez-Ruiz A, Tovar-Castro L, Aguilar CN, Saucedo-Castañeda G, Favela-Torres E. Sucrose Hydrolysis in a Continuous Packed-Bed Reactor with Auto-immobilise Aspergillus niger Biocatalyst Obtained by Solid-State Fermentation. Appl Biochem Biotechnol 2022; 194:1327-1339. [PMID: 34699041 DOI: 10.1007/s12010-021-03737-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/21/2021] [Indexed: 10/20/2022]
Abstract
Invertase from Aspergillus niger C28B25 was produced by solid-state fermentation (SSF). Fermented solids were used directly as a biocatalyst for batch and continuous hydrolysis of sucrose in a packed-bed reactor under different operational conditions with various temperatures, sucrose concentrations, and feed flow rates. The SSF allowed obtaining a biocatalyst with an invertase activity of 82.2 U/g db. The biocatalyst maintained its activity in the range of 40 to 70 °C for at least 70 h of continuous operation. In a 20-mL packed bed reactor, the highest hydrolysis rate (12.3 g/g db h) was obtained at 40 °C with 2 M sucrose. Continuous hydrolysis in 20-mL and 200-mL reactors at 60 °C led to sucrose hydrolysis above 60% (8.5 residence times) and above 55% (4.5 residence times), respectively. The auto-immobilised biocatalyst produced by SSF without recovery, purification, and immobilisation stages offers an economical alternative for developing accessible biocatalysts that can be applied in batch or continuous sucrose hydrolysis processes. This study shows the potential of biocatalyst production by SSF for other enzymatic systems.
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Affiliation(s)
- Antonio Martínez-Ruiz
- Departamento de Biotecnologia, Universidad Autonoma Metropolitana Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Mexico City, 09340, Mexico
| | - Luz Tovar-Castro
- Departamento de Sistemas Biologicos, Universidad Autonoma Metropolitana Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Delegacion Coyoacan, Mexico City, 04960, Mexico
| | - Cristóbal N Aguilar
- Departamento de Investigacion en Alimentos, Facultad de Quimica, Universidad Autonoma de Coahuila, Coahuila, Saltillo, 25280, Mexico
| | - Gerardo Saucedo-Castañeda
- Departamento de Biotecnologia, Universidad Autonoma Metropolitana Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Mexico City, 09340, Mexico
| | - Ernesto Favela-Torres
- Departamento de Biotecnologia, Universidad Autonoma Metropolitana Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Mexico City, 09340, Mexico.
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Novačić A, Beauvais V, Oskomić M, Štrbac L, Dantec AL, Rahmouni AR, Stuparević I. Yeast RNA exosome activity is necessary for maintaining cell wall stability through proper protein glycosylation. Mol Biol Cell 2021; 32:363-375. [PMID: 33439673 PMCID: PMC8098854 DOI: 10.1091/mbc.e20-08-0544-t] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/25/2020] [Accepted: 01/06/2021] [Indexed: 12/01/2022] Open
Abstract
Nuclear RNA exosome is the main 3'→5' RNA degradation and processing complex in eukaryotic cells and its dysregulation therefore impacts gene expression and viability. In this work we show that RNA exosome activity is necessary for maintaining cell wall stability in yeast Saccharomyces cerevisiae. While the essential RNA exosome catalytic subunit Dis3 provides exoribonuclease catalytic activity, the second catalytic subunit Rrp6 has a noncatalytic role in this process. RNA exosome cofactors Rrp47 and Air1/2 are also involved. RNA exosome mutants undergo osmoremedial cell lysis at high temperature or at physiological temperature upon treatment with cell wall stressors. Finally, we show that a defect in protein glycosylation is a major reason for cell wall instability of RNA exosome mutants. Genes encoding enzymes that act in the early steps of the protein glycosylation pathway are down-regulated at high temperature in cells lacking Rrp6 protein or Dis3 exoribonuclease activity and overexpression of the essential enzyme Psa1, that catalyzes synthesis of the mannosylation precursor, suppresses temperature sensitivity and aberrant morphology of these cells. Furthermore, this defect is connected to a temperature-dependent increase in accumulation of noncoding RNAs transcribed from loci of relevant glycosylation-related genes.
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Affiliation(s)
- Ana Novačić
- Laboratory of Biochemistry, Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Valentin Beauvais
- Centre de Biophysique Moléculaire, UPR 4301 du CNRS, 45071 Orléans, France
| | - Marina Oskomić
- Laboratory of Biochemistry, Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Lucija Štrbac
- Laboratory of Biochemistry, Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Aurélia Le Dantec
- Centre de Biophysique Moléculaire, UPR 4301 du CNRS, 45071 Orléans, France
| | - A. Rachid Rahmouni
- Centre de Biophysique Moléculaire, UPR 4301 du CNRS, 45071 Orléans, France
| | - Igor Stuparević
- Laboratory of Biochemistry, Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
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Sousa-Silva M, Vieira D, Soares P, Casal M, Soares-Silva I. Expanding the Knowledge on the Skillful Yeast Cyberlindnera jadinii. J Fungi (Basel) 2021; 7:36. [PMID: 33435379 PMCID: PMC7827542 DOI: 10.3390/jof7010036] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/21/2020] [Accepted: 01/05/2021] [Indexed: 12/22/2022] Open
Abstract
Cyberlindnera jadinii is widely used as a source of single-cell protein and is known for its ability to synthesize a great variety of valuable compounds for the food and pharmaceutical industries. Its capacity to produce compounds such as food additives, supplements, and organic acids, among other fine chemicals, has turned it into an attractive microorganism in the biotechnology field. In this review, we performed a robust phylogenetic analysis using the core proteome of C. jadinii and other fungal species, from Asco- to Basidiomycota, to elucidate the evolutionary roots of this species. In addition, we report the evolution of this species nomenclature over-time and the existence of a teleomorph (C. jadinii) and anamorph state (Candida utilis) and summarize the current nomenclature of most common strains. Finally, we highlight relevant traits of its physiology, the solute membrane transporters so far characterized, as well as the molecular tools currently available for its genomic manipulation. The emerging applications of this yeast reinforce its potential in the white biotechnology sector. Nonetheless, it is necessary to expand the knowledge on its metabolism, regulatory networks, and transport mechanisms, as well as to develop more robust genetic manipulation systems and synthetic biology tools to promote the full exploitation of C. jadinii.
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Affiliation(s)
- Maria Sousa-Silva
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (M.S.-S.); (D.V.); (P.S.); (M.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Daniel Vieira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (M.S.-S.); (D.V.); (P.S.); (M.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Pedro Soares
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (M.S.-S.); (D.V.); (P.S.); (M.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Margarida Casal
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (M.S.-S.); (D.V.); (P.S.); (M.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Isabel Soares-Silva
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (M.S.-S.); (D.V.); (P.S.); (M.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
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6
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Gündüz Ergün B, Hüccetoğulları D, Öztürk S, Çelik E, Çalık P. Established and Upcoming Yeast Expression Systems. Methods Mol Biol 2019; 1923:1-74. [PMID: 30737734 DOI: 10.1007/978-1-4939-9024-5_1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Yeast was the first microorganism used by mankind for biotransformation of feedstock that laid the foundations of industrial biotechnology. Long historical use, vast amount of data, and experience paved the way for Saccharomyces cerevisiae as a first yeast cell factory, and still it is an important expression platform as being the production host for several large volume products. Continuing special needs of each targeted product and different requirements of bioprocess operations have led to identification of different yeast expression systems. Modern bioprocess engineering and advances in omics technology, i.e., genomics, transcriptomics, proteomics, secretomics, and interactomics, allow the design of novel genetic tools with fine-tuned characteristics to be used for research and industrial applications. This chapter focuses on established and upcoming yeast expression platforms that have exceptional characteristics, such as the ability to utilize a broad range of carbon sources or remarkable resistance to various stress conditions. Besides the conventional yeast S. cerevisiae, established yeast expression systems including the methylotrophic yeasts Pichia pastoris and Hansenula polymorpha, the dimorphic yeasts Arxula adeninivorans and Yarrowia lipolytica, the lactose-utilizing yeast Kluyveromyces lactis, the fission yeast Schizosaccharomyces pombe, and upcoming yeast platforms, namely, Kluyveromyces marxianus, Candida utilis, and Zygosaccharomyces bailii, are compiled with special emphasis on their genetic toolbox for recombinant protein production.
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Affiliation(s)
- Burcu Gündüz Ergün
- Biochemical Reaction Engineering Laboratory, Department of Chemical Engineering, Middle East Technical University, Ankara, Turkey
| | - Damla Hüccetoğulları
- Biochemical Reaction Engineering Laboratory, Department of Chemical Engineering, Middle East Technical University, Ankara, Turkey
| | - Sibel Öztürk
- Biochemical Reaction Engineering Laboratory, Department of Chemical Engineering, Middle East Technical University, Ankara, Turkey
| | - Eda Çelik
- Department of Chemical Engineering, Hacettepe University, Ankara, Turkey
- Bioengineering Division, Institute of Science, Hacettepe University, Ankara, Turkey
| | - Pınar Çalık
- Biochemical Reaction Engineering Laboratory, Department of Chemical Engineering, Middle East Technical University, Ankara, Turkey.
- Industrial Biotechnology and Metabolic Engineering Laboratory, Department of Biotechnology, Graduate School of Natural and Applied Sciences, Middle East Technical University, Ankara, Turkey.
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7
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de Almeida MN, Guimarães VM, Falkoski DL, de Camargo BR, Fontes-Sant'ana GC, Maitan-Alfenas GP, de Rezende ST. Purification and characterization of an invertase and a transfructosylase from Aspergillus terreus. J Food Biochem 2018. [DOI: 10.1111/jfbc.12551] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Maíra N. de Almeida
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
- Departamento de Ciências Naturais; Universidade Federal de São João del Rei; São João del Rei MG 36.301-160 Brazil
| | - Valéria M. Guimarães
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
| | - Daniel L. Falkoski
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
| | - Brenda R. de Camargo
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
| | - Gizele C. Fontes-Sant'ana
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
- Departamento de Tecnologia de Processos Bioquímicos; Instituto de Química, Universidade Estadual do Rio de Janeiro; Rio de Janeiro Brazil
| | - Gabriela P. Maitan-Alfenas
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
- Departamento de Alimentos e Nutrição; Universidade Federal do Mato Grosso; Cuiabá Brazil
| | - Sebastião T. de Rezende
- Departamento de Bioquímica e Biologia Molecular; Universidade Federal de Viçosa; Viçosa MG 36570-900 Brazil
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8
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Yuivar Y, Barahona S, Alcaíno J, Cifuentes V, Baeza M. Biochemical and Thermodynamical Characterization of Glucose Oxidase, Invertase, and Alkaline Phosphatase Secreted by Antarctic Yeasts. Front Mol Biosci 2017; 4:86. [PMID: 29312954 PMCID: PMC5733001 DOI: 10.3389/fmolb.2017.00086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 11/29/2017] [Indexed: 11/29/2022] Open
Abstract
The use of enzymes in diverse industries has increased substantially over past decades, creating a well-established and growing global market. Currently, the use of enzymes that work better at ambient or lower temperatures in order to decrease the temperatures of production processes is desirable. There is thus a continuous search for enzymes in cold environments, especially from microbial sources, with amylases, proteases, lipases and, cellulases being the most studied. Other enzymes, such as glucose oxidase (GOD), invertase (Inv), and alkaline phosphatase (ALP), also have a high potential for application, but have been much less studied in microorganisms living in cold-environments. In this work, secretion of these three enzymes by Antarctic yeast species was analyzed, and five, three, and five species were found to produce extracellular GOD, Inv, and ALP, respectively. The major producers of GOD, Inv, and ALP were Goffeauzyma gastrica, Wickerhamomyces anomalus, and Dioszegia sp., respectively, from which the enzymes were purified and characterized. Contrary to what was expected, the highest GOD and Inv activities were found at 64°C and 60°C, respectively, and at 47°C for ALP. However, the three enzymes maintained a significant percentage of activity at lower temperatures, especially ALP that kept a 67 and 43% of activity at 10°C and 4°C, respectively.
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Affiliation(s)
- Yassef Yuivar
- Laboratorio de Genética, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Salvador Barahona
- Laboratorio de Genética, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Jennifer Alcaíno
- Laboratorio de Genética, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Víctor Cifuentes
- Laboratorio de Genética, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Marcelo Baeza
- Laboratorio de Genética, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
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9
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Lincoln L, More SS. Bacterial invertases: Occurrence, production, biochemical characterization, and significance of transfructosylation. J Basic Microbiol 2017; 57:803-813. [DOI: 10.1002/jobm.201700269] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 06/22/2017] [Accepted: 06/28/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Lynette Lincoln
- Department of Biochemistry; Centre for Post Graduate Studies; Jain University; Bengaluru Karnataka India
| | - Sunil S. More
- School of Basic and Applied Sciences; Dayananda Sagar University; Bengaluru Karnataka India
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10
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Invertase of Saccharomyces cerevisiae SAA-612: Production, characterization and application in synthesis of fructo-oligosaccharides. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.11.034] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
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11
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Characterization of a novel low-temperature-active, alkaline and sucrose-tolerant invertase. Sci Rep 2016; 6:32081. [PMID: 27553125 PMCID: PMC4995436 DOI: 10.1038/srep32081] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 08/02/2016] [Indexed: 01/27/2023] Open
Abstract
A glycoside hydrolase family 32 invertase from Bacillus sp. HJ14 was expressed in Escherichia coli. The purified recombinant enzyme (rInvHJ14) showed typical biochemical properties of low-temperature-active and alkaline enzymes: (i) rInvHJ14 was active and stable in the range of pH 7.0–9.5 with an apparent pH optimum of 8.0; (ii) rInvHJ14 was most active but not stable at 30–32.5 °C, with 19.7, 48.2 and 82.1% of its maximum activity when assayed at 0, 10 and 20 °C, respectively, and the Ea, ΔG* (30 °C), Km (30 °C) and kcat (30 °C) values for hydrolysis of sucrose by rInvHJ14 was 47.6 kJ mol−1, 57.6 kJ mol−1, 62.9 mM and 746.2 s−1, respectively. The enzyme also showed strong sucrose tolerance. rInvHJ14 preserved approximately 50% of its highest activity in the presence of 2045.0 mM sucrose. Furthermore, potential factors for low-temperature-active and alkaline adaptations of rInvHJ14 were presumed. Compared with more thermostable homologs, rInvHJ14 has a higher frequency of glycine residues and a longer loop but a lower frequency of proline residues (especially in a loop) in the catalytic domain. The catalytic pockets of acid invertases were almost negatively charged while that of alkaline rInvHJ14 was mostly positively charged.
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12
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High level expression of a recombinant xylanase by Pichia pastoris cultured in a bioreactor with methanol as the sole carbon source: Purification and biochemical characterization of the enzyme. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.04.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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13
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Buerth C, Tielker D, Ernst JF. Candida utilis and Cyberlindnera (Pichia) jadinii: yeast relatives with expanding applications. Appl Microbiol Biotechnol 2016; 100:6981-90. [DOI: 10.1007/s00253-016-7700-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 06/16/2016] [Accepted: 06/20/2016] [Indexed: 11/29/2022]
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14
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Watanasrisin W, Iwatani S, Oura T, Tomita Y, Ikushima S, Chindamporn A, Niimi M, Niimi K, Lamping E, Cannon RD, Kajiwara S. Identification and characterization ofCandida utilismultidrug efflux transporterCuCdr1p. FEMS Yeast Res 2016; 16:fow042. [DOI: 10.1093/femsyr/fow042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2016] [Indexed: 11/12/2022] Open
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Lan T, Zhang J, Lu Y. Transforming the blood glucose meter into a general healthcare meter for in vitro diagnostics in mobile health. Biotechnol Adv 2016; 34:331-41. [PMID: 26946282 PMCID: PMC4833671 DOI: 10.1016/j.biotechadv.2016.03.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 02/20/2016] [Accepted: 03/01/2016] [Indexed: 01/08/2023]
Abstract
Recent advances in mobile network and smartphones have provided an enormous opportunity for transforming in vitro diagnostics (IVD) from central labs to home or other points of care (POC). A major challenge to achieving the goal is a long time and high costs associated with developing POC IVD devices in mobile Health (mHealth). Instead of developing a new POC device for every new IVD target, we and others are taking advantage of decades of research, development, engineering and continuous improvement of the blood glucose meter (BGM), including those already integrated with smartphones, and transforming the BGM into a general healthcare meter for POC IVDs of a wide range of biomarkers, therapeutic drugs and other analytical targets. In this review, we summarize methods to transduce and amplify selective binding of targets by antibodies, DNA/RNA aptamers, DNAzyme/ribozymes and protein enzymes into signals such as glucose or NADH that can be measured by commercially available BGM, making it possible to adapt many clinical assays performed in central labs, such as immunoassays, aptamer/DNAzyme assays, molecular diagnostic assays, and enzymatic activity assays onto BGM platform for quantification of non-glucose targets for a wide variety of IVDs in mHealth.
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Affiliation(s)
- Tian Lan
- GlucoSentient, Inc., 60 Hazelwood Drive, Champaign, IL 61820, USA.
| | - Jingjing Zhang
- Department of Chemistry, University of Illinois at Urbana-Champaign, 601 S. Mathews Ave., Urbana, IL 61801, USA
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign, 601 S. Mathews Ave., Urbana, IL 61801, USA.
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Nadeem H, Rashid MH, Siddique MH, Azeem F, Muzammil S, Javed MR, Ali MA, Rasul I, Riaz M. Microbial invertases: A review on kinetics, thermodynamics, physiochemical properties. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.04.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Mouelhi R, Abidi F, Marzouki MN. An improved method for the production of fructooligosaccharides by immobilized β-fructofuranosidase fromSclerotinia sclerotiorum. Biotechnol Appl Biochem 2015; 63:281-91. [DOI: 10.1002/bab.1360] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 01/23/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Refka Mouelhi
- Laboratory of Protein Engineering and Bioactive Molecules (LIP-MB); National Institute of Applied Sciences and Technology; University of Carthage; Tunis Cedex Tunisia
| | - Ferid Abidi
- Laboratory of Protein Engineering and Bioactive Molecules (LIP-MB); National Institute of Applied Sciences and Technology; University of Carthage; Tunis Cedex Tunisia
| | - Mohamed Nejib Marzouki
- Laboratory of Protein Engineering and Bioactive Molecules (LIP-MB); National Institute of Applied Sciences and Technology; University of Carthage; Tunis Cedex Tunisia
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Yuzugullu Y, Duman YA. Aqueous Two-Phase (PEG4000/Na2SO4) Extraction and Characterization of an Acid Invertase from Potato Tuber (Solanum tuberosum). Prep Biochem Biotechnol 2015; 45:696-711. [DOI: 10.1080/10826068.2014.943373] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Effect of deglycosylation on the properties of thermophilic invertase purified from the yeast Candida guilliermondii MpIIIa. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.05.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Alekseeva OV, Sabirzyanova TA, Selyah IO, Kalebina TS, Kulaev IS. Export of an invertase by yeast Candida utilis cells. APPL BIOCHEM MICRO+ 2014. [DOI: 10.1134/s0003683814020033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ahmed MM, Md. Fakruddin, Rashid MM, Hossain MM, Uddin MN, Hoque MM, Haque MM. Semi-Pilot Study of the Production of Biomass and β-D-Fructofuranosidase by Saccharomyces cerevisiaeIFSTBY111 in a Fed-Batch Fermenter. Ind Biotechnol (New Rochelle N Y) 2014. [DOI: 10.1089/ind.2013.0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Monzur Morshed Ahmed
- Industrial Microbiology Laboratory, Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research, Dhaka, Bangladesh
| | - Md. Fakruddin
- Industrial Microbiology Laboratory, Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research, Dhaka, Bangladesh
| | | | - Md. Mohaddis Hossain
- Department of Food Engineering and Tea Technology, Shahjalal University of Science & Technology, Sylhet, Bangladesh
| | - Mohammad Nashir Uddin
- BCSIR Laboratories Dhaka, Bangladesh Council of Scientific and Industrial Research Laboratories, Dhaka, Bangladesh
| | - Md. Mozammel Hoque
- Department of Food Engineering and Tea Technology, Shahjalal University of Science & Technology, Sylhet, Bangladesh
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22
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Nagai A, Mine T, Yamamoto T, Wariishi H. Transfructosylation reaction in cured tobacco leaf (Nicotiana tabacum). J Biosci Bioeng 2013; 116:666-71. [PMID: 23845913 DOI: 10.1016/j.jbiosc.2013.05.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/26/2013] [Accepted: 05/27/2013] [Indexed: 10/26/2022]
Abstract
Tobacco plant was known to be a non-fructan-storing plant. However, we demonstrated that fructo-oligosaccharides (FOSs) were formed in cured tobacco leaf on adding sucrose to the leaf in our previous report (Nagai et al., J. Agric. Food Chem., 60, 6606-6612, 2012). Also, it was expected from the results obtained in previous study that FOSs were generated by enzymatic reaction in cured tobacco leaf. The purpose of this study is to confirm and understand the mechanisms of above-mentioned FOSs formation. Thus, we tried to purify the enzymes related to the production of FOSs. The enzymes were extracted from pulverized cured tobacco leaf (burley type leaf), and were purified by charcoal treatment, ultrafiltration, and several chromatography techniques. As a result, one of the enzymes was purified up to 414-fold. It was revealed that this enzyme was acid invertase exhibiting maximum transfructosylation activity at pH 6.0, 60 °C. In addition, general properties of this enzyme were also investigated. The enzyme purified in this study enhanced the ratio of FOSs formation under the condition of high concentrated sucrose. From these results, it was suggested that this enzyme participated in the formation of FOSs in tobacco leaf after curing.
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Affiliation(s)
- Atsushi Nagai
- Tobacco Science Research Center, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa 227-8512, Japan; Department of Innovative Science and Bioenvironmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
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Enhanced production of β-d-fructofuranosidase by Saccharomyces cerevisiae using agro-industrial wastes as substrates. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2013. [DOI: 10.1016/j.bcab.2013.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Kulshrestha S, Tyagi P, Sindhi V, Yadavilli KS. Invertase and its applications – A brief review. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.jopr.2013.07.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Tris–sucrose buffer system: a new specially designed medium for extracellular invertase production by immobilized cells of isolated yeast Cryptococcus laurentii MT-61. Folia Microbiol (Praha) 2013; 59:9-16. [DOI: 10.1007/s12223-013-0258-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 05/12/2013] [Indexed: 10/26/2022]
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26
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Kumar R, Kesavapillai B. Stimulation of extracellular invertase production from spent yeast when sugarcane pressmud used as substrate through solid state fermentation. SPRINGERPLUS 2012; 1:81. [PMID: 23420549 PMCID: PMC3568478 DOI: 10.1186/2193-1801-1-81] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 12/18/2012] [Indexed: 11/10/2022]
Abstract
Efforts were made to utilize the waste/by-product of two agro-process industries namely pressmud from sugar processing industries and spent yeast from distilleries manufacturing ethanol from cane molasses, for the production of microbial invertase. Our experimentation indicated that these two sources could be ideally utilized for the production of invertase through solid substrate fermentation (SSF). SSF with spent yeast had given highest specific activity of 430 U/mg in 72 h of fermentation. Inoculum percentage of yeast cells on pressmud was optimized as 50% (w/w) with a combination inoculum of spent yeast and fresh cultured yeast at a ratio of 7:3. Crude enzyme was characterized for optimum pH and temperature and maximum activity was recorded at pH 5.0 and at a temperature of 40°C. Impacts of metal ions and detergents on invertase action were studied in which Mn2+, Fe3+, Al3+ and detergents had enhanced the activity of the enzyme whereas Cu2+ and Zn2+ inhibited the enzyme activity. Purification of 9.8 folds was obtained by using three phase partition method.
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Affiliation(s)
- Rahul Kumar
- Technology Business Incubator (TBI), Bannari Amman Institute of Technology, Sathyamangalam, 638 401 India
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27
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Lahiri S, Basu A, Sengupta S, Banerjee S, Dutta T, Soren D, Chattopadhyay K, Ghosh AK. Purification and characterization of a trehalase–invertase enzyme with dual activity from Candida utilis. Arch Biochem Biophys 2012; 522:90-9. [DOI: 10.1016/j.abb.2012.03.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 03/21/2012] [Accepted: 03/22/2012] [Indexed: 01/26/2023]
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28
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Karkaş T, Önal S. Characteristics of invertase partitioned in poly(ethylene glycol)/magnesium sulfate aqueous two-phase system. Biochem Eng J 2012. [DOI: 10.1016/j.bej.2011.11.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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29
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Giraldo MA, da Silva TM, Salvato F, Terenzi HF, Jorge JA, Guimarães LHS. Thermostable invertases from Paecylomyces variotii produced under submerged and solid-state fermentation using agroindustrial residues. World J Microbiol Biotechnol 2011; 28:463-72. [DOI: 10.1007/s11274-011-0837-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Accepted: 06/30/2011] [Indexed: 10/18/2022]
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30
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Buerth C, Heilmann CJ, Klis FM, de Koster CG, Ernst JF, Tielker D. Growth-dependent secretome of Candida utilis. MICROBIOLOGY-SGM 2011; 157:2493-2503. [PMID: 21680638 DOI: 10.1099/mic.0.049320-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Recently, the food yeast Candida utilis has emerged as an excellent host for production of heterologous proteins. Since secretion of the recombinant product is advantageous for its purification, we characterized the secreted proteome of C. utilis. Cells were cultivated to the exponential or stationary growth phase, and the proteins in the medium were identified by MS. In parallel, a draft genome sequence of C. utilis strain DSM 2361 was determined by massively parallel sequencing. Comparisons of protein and coding sequences established that C. utilis is not a member of the CUG clade of Candida species. In total, we identified 37 proteins in the culture solution, 17 of which were exclusively present in the stationary phase, whereas three proteins were specific to the exponential growth phase. Identified proteins represented mostly carbohydrate-active enzymes associated with cell wall organization, while no proteolytic enzymes and only a few cytoplasmic proteins were detected. Remarkably, cultivation in xylose-based medium generated a protein pattern that diverged significantly from glucose-grown cells, containing the invertase Inv1 as the major extracellular protein, particularly in its highly glycosylated S-form (slow-migrating). Furthermore, cultivation without ammonium sulfate induced the secretion of the asparaginase Asp3. Comparisons of the secretome of C. utilis with those of Kluyveromyces lactis and Pichia pastoris, as well as with those of the human fungal pathogens Candida albicans and Candida glabrata, revealed a conserved set of 10 and six secretory proteins, respectively.
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Affiliation(s)
- Christoph Buerth
- Molecular Mycology, Heinrich-Heine-University, Duesseldorf, Universitaetsstraße 1, 40225 Duesseldorf, Germany
| | - Clemens J Heilmann
- Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Frans M Klis
- Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Chris G de Koster
- Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Joachim F Ernst
- Molecular Mycology, Heinrich-Heine-University, Duesseldorf, Universitaetsstraße 1, 40225 Duesseldorf, Germany
| | - Denis Tielker
- Molecular Mycology, Heinrich-Heine-University, Duesseldorf, Universitaetsstraße 1, 40225 Duesseldorf, Germany
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31
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Rustiguel CB, Terenzi HF, Jorge JA, Guimarães LHS. A novel silver-activated extracellular β-d-fructofuranosidase from Aspergillus phoenicis. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Venkateshwar M, Chaitanya K, Altaf M, Mahammad EJ, Bee H, Reddy G. Influence of micronutrients on yeast growth and β-d-fructofuranosidase production. Indian J Microbiol 2010; 50:325-31. [PMID: 23100848 PMCID: PMC3450060 DOI: 10.1007/s12088-010-0005-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2008] [Accepted: 12/07/2008] [Indexed: 10/19/2022] Open
Abstract
β-d-fructofuranosidase is one of the most important enzymes of the food industry especially due to its application in preparation of soft centered candies, confectioneries and to produce fructose syrups. Although several bacteria and filamentous fungi are reported for its production, yeasts are the most preferred source for this enzyme. In the present study mineral nutrients were screened for their effect on yeast growth and the enzyme production using Plackett-Burman design. Of the 11 nutrients screened, three variables (KH(2)PO(4), FeCl(3) and CoCl(2)) were significantly effecting yeast growth while six variables, i.e. KH(2)PO(4), CaCl(2), MnSO(4), Na(2)MoO(4), ZnSO(4) and CoCl(2) had significant effect on enzyme production.
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Affiliation(s)
- M. Venkateshwar
- Department of Microbiology, Osmania University, Hyderabad, 500 007 India
| | - K. Chaitanya
- Department of Microbiology, Osmania University, Hyderabad, 500 007 India
| | - Md. Altaf
- Department of Microbiology, Osmania University, Hyderabad, 500 007 India
| | - E. J. Mahammad
- Department of Microbiology, Osmania University, Hyderabad, 500 007 India
| | - Hameeda Bee
- Department of Microbiology, Osmania University, Hyderabad, 500 007 India
| | - Gopal Reddy
- Department of Microbiology, Osmania University, Hyderabad, 500 007 India
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33
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34
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Alegre ACP, de Lourdes Teixeira de Moraes Polizeli M, Terenzi HF, Jorge JA, Guimarães LHS. Production of thermostable invertases by Aspergillus caespitosus under submerged or solid state fermentation using agroindustrial residues as carbon source. Braz J Microbiol 2009; 40:612-22. [PMID: 24031406 PMCID: PMC3768555 DOI: 10.1590/s1517-838220090003000025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 11/12/2008] [Accepted: 05/04/2009] [Indexed: 11/22/2022] Open
Abstract
The filamentous fungus Aspergillus caespitosus was a good producer of intracellular and extracellular invertases under submerged (SbmF) or solid-state fermentation (SSF), using agroindustrial residues, such as wheat bran, as carbon source. The production of extracellular enzyme under SSF at 30°C, for 72h, was enhanced using SR salt solution (1:1, w/v) to humidify the substrate. The extracellular activity under SSF using wheat bran was around 5.5-fold higher than that obtained in SbmF (Khanna medium) with the same carbon source. However, the production of enzyme with wheat bran plus oat meal was 2.2-fold higher than wheat bran isolated. The enzymatic production was affected by supplementation with nitrogen and phosphate sources. The addition of glucose in SbmF and SSF promoted the decreasing of extracellular activity, but the intracellular form obtained in SbmF was enhanced 3-5-fold. The invertase produced in SSF exhibited optimum temperature at 50°C while the extra- and intracellular enzymes produced in SbmF exhibited maximal activities at 60°C. All enzymatic forms exhibited maximal activities at pH 4.0-6.0 and were stable up to 1 hour at 50°C.
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Affiliation(s)
- Ana Cláudia Paiva Alegre
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto, SP , Brasil
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35
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Gutiérrez-Alonso P, Fernández-Arrojo L, Plou FJ, Fernández-Lobato M. Biochemical characterization of a β-fructofuranosidase fromRhodotorula dairenensiswith transfructosylating activity. FEMS Yeast Res 2009; 9:768-73. [DOI: 10.1111/j.1567-1364.2009.00526.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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36
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Venkateshwar M, Chaitanya K, Altaf MD, Hameeda B, Ghopal Reddy M. Evaluation of nitrogenous media components by Plackett–Burman statistical design for β-d-fructofuranosidase production by Saccharomyces sp. strain GVT263. Can J Microbiol 2009; 55:405-9. [DOI: 10.1139/w08-146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
β-d-Fructofuranosidase (FFase), an important enzyme of the confectionery and fructose syrup industry, is produced by several microorganisms. However, yeasts are the most used source because of their high sucrose fermentation capacity. In this work, production of FFase was carried out in submerged fermentation using a high enzyme-producing yeast strain. Plackett–Burman statistical experimental design was applied to evaluate the fermentation medium components. The effects of 10 nitrogen sources were studied in a 16-run experimental design. Beef extract, yeast extract, N-Z-amine, tryptone, meat extract, and ammonium acetate were found to have significant effects on enzyme production. Among these, yeast extract, N-Z-amine, and ammonium acetate were the most significant. A maximum FFase activity of 299.4 U/mL was obtained after a 24 h fermentation period.
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Affiliation(s)
- M. Venkateshwar
- Department of Microbiology, Osmania University, Hyderabad – 500007, India
| | - K. Chaitanya
- Department of Microbiology, Osmania University, Hyderabad – 500007, India
| | - M. D. Altaf
- Department of Microbiology, Osmania University, Hyderabad – 500007, India
| | - B. Hameeda
- Department of Microbiology, Osmania University, Hyderabad – 500007, India
| | - M. Ghopal Reddy
- Department of Microbiology, Osmania University, Hyderabad – 500007, India
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37
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Molecular and biochemical characterization of a beta-fructofuranosidase from Xanthophyllomyces dendrorhous. Appl Environ Microbiol 2008; 75:1065-73. [PMID: 19088319 DOI: 10.1128/aem.02061-08] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An extracellular beta-fructofuranosidase from the yeast Xanthophyllomyces dendrorhous was characterized biochemically, molecularly, and phylogenetically. This enzyme is a glycoprotein with an estimated molecular mass of 160 kDa, of which the N-linked carbohydrate accounts for 60% of the total mass. It displays optimum activity at pH 5.0 to 6.5, and its thermophilicity (with maximum activity at 65 to 70 degrees C) and thermostability (with a T(50) in the range 66 to 71 degrees C) is higher than that exhibited by most yeast invertases. The enzyme was able to hydrolyze fructosyl-beta-(2-->1)-linked carbohydrates such as sucrose, 1-kestose, or nystose, although its catalytic efficiency, defined by the k(cat)/K(m) ratio, indicates that it hydrolyzes sucrose approximately 4.2 times more efficiently than 1-kestose. Unlike other microbial beta-fructofuranosidases, the enzyme from X. dendrorhous produces neokestose as the main transglycosylation product, a potentially novel bifidogenic trisaccharide. Using a 41% (wt/vol) sucrose solution, the maximum fructooligosaccharide concentration reached was 65.9 g liter(-1). In addition, we isolated and sequenced the X. dendrorhous beta-fructofuranosidase gene (Xd-INV), showing that it encodes a putative mature polypeptide of 595 amino acids and that it shares significant identity with other fungal, yeast, and plant beta-fructofuranosidases, all members of family 32 of the glycosyl-hydrolases. We demonstrate that the Xd-INV could functionally complement the suc2 mutation of Saccharomyces cerevisiae and, finally, a structural model of the new enzyme based on the homologous invertase from Arabidopsis thaliana has also been obtained.
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38
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Gangadhara, Ramesh Kumar P, Prakash V. Influence of Polyols on the Stability and Kinetic Parameters of Invertase from Candida utilis: Correlation with the Conformational Stability and Activity. Protein J 2008; 27:440-9. [DOI: 10.1007/s10930-008-9154-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Hernalsteens S, Maugeri F. Properties of thermostable extracellular FOS-producing fructofuranosidase from Cryptococcus sp. Eur Food Res Technol 2008. [DOI: 10.1007/s00217-008-0925-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Shaheen I, Bhatti HN, Ashraf T. Production, purification and thermal characterisation of invertase from a newly isolated Fusarium sp. under solid-state fermentation. Int J Food Sci Technol 2008. [DOI: 10.1111/j.1365-2621.2007.01581.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Purification and characterisation of a fructosyltransferase from Rhodotorula sp. Appl Microbiol Biotechnol 2008; 79:589-96. [DOI: 10.1007/s00253-008-1470-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Revised: 03/20/2008] [Accepted: 03/24/2008] [Indexed: 11/27/2022]
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42
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Partial Purification and Characterization of Extracellular Fructofuranosidase with Transfructosylating Activity from Candida sp. FOOD BIOPROCESS TECH 2008. [DOI: 10.1007/s11947-008-0089-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Guimarães LHS, Terenzi HF, Polizeli MDLTDM, Jorge JA. Production and characterization of a thermostable extracellular β-d-fructofuranosidase produced by Aspergillus ochraceus with agroindustrial residues as carbon sources. Enzyme Microb Technol 2007. [DOI: 10.1016/j.enzmictec.2007.07.021] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Alvaro-Benito M, de Abreu M, Fernández-Arrojo L, Plou FJ, Jiménez-Barbero J, Ballesteros A, Polaina J, Fernández-Lobato M. Characterization of a β-fructofuranosidase from Schwanniomyces occidentalis with transfructosylating activity yielding the prebiotic 6-kestose. J Biotechnol 2007; 132:75-81. [PMID: 17904238 DOI: 10.1016/j.jbiotec.2007.07.939] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2006] [Revised: 03/15/2007] [Accepted: 07/20/2007] [Indexed: 10/23/2022]
Abstract
beta-Fructofuranosidases are powerful tools in industrial biotechnology. We have characterized an extracellular beta-fructofuranosidase from the yeast Schwanniomyces occidentalis. The enzyme shows broad substrate specificity, hydrolyzing sucrose, 1-kestose, nystose and raffinose, with different catalytic efficiencies (k(cat)/K(m)). Although the main reaction catalysed by this enzyme is sucrose hydrolysis, it also produces two fructooligosaccharides (FOS) by transfructosylation. A combination of (1)H, (13)C and 2D-NMR techniques shows that the major product is the prebiotic trisaccharide 6-kestose. The 6-kestose yield obtained with this beta-fructofuranosidase is, to our concern, higher than those reported with other 6-kestose-producing enzymes, both at the kinetic maximum (76gl(-1)) and at reaction equilibrium (44gl(-1)). The total FOS production in the kinetic maximum was 101gl(-1), which corresponded to 16.4% (w/w) referred to the total carbohydrates in the reaction mixture.
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Affiliation(s)
- Miguel Alvaro-Benito
- Departamento de Biología Molecular (CSIC-UAM), Universidad Autónoma Madrid, Cantoblanco, 28049 Madrid, Spain
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Türkel S, Turgut T, Kayakent N. Effect of osmotic stress on the derepression of invertase synthesis in nonconventional yeasts. Lett Appl Microbiol 2006; 42:78-82. [PMID: 16411924 DOI: 10.1111/j.1472-765x.2005.01806.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS The aim of this study was to analyse the effect of osmotic stress on the biosynthesis of invertase enzyme in nonconventional yeasts. METHODS AND RESULTS Invertase activities of the nonconventional yeast species belonging to Kluyveromyces, Schwanniomyces and Pichia genus were measured either in the presence or in the absence of various amounts of NaCl. The effect of hyperosmotic stress on the glucose consumption of Saccharomyces cerevisiae and Pichia anomala were also compared. Like S. cerevisiae, derepression of invertase synthesis in Kluyveromyces lactis, Schwanniomyces occidentalis and Pichia jadinii is inhibited by hyperosmotic stress. However, derepression of invertase synthesis in P. anomala is not affected by hyperosmotic stress. In addition, low levels of osmotic stress activated invertase synthesis three- to fourfold in P. anomala and K. lactis. CONCLUSIONS This study shows that low levels of osmotic stress induces the invertase synthesis at very high levels in P. anomala and K. lactis. Glucose consumption was not influenced at significant levels by the hyperosmotic stress in P. anomala. SIGNIFICANCE AND IMPACT OF THE STUDY This study shows the activation of invertase synthesis by low levels of osmotic stress in P. anomala and K. lactis.
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Affiliation(s)
- S Türkel
- Department of Biology, Faculty of Arts and Sciences, Uludag University, Bursa, Turkey.
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Ikram-ul-Haq , Baig MA, Ali S. Effect of cultivation conditions on invertase production by hyperproducing Saccharomyces cerevisiae isolates. World J Microbiol Biotechnol 2005. [DOI: 10.1007/s11274-004-2612-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Current awareness on yeast. Yeast 2002; 19:805-12. [PMID: 12112235 DOI: 10.1002/yea.825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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