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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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Rasbold LM, Delai VM, da Cruz Kerber CM, Simões MR, Heinen PR, da Conceição Silva JL, de Cássia Garcia Simão R, Kadowaki MK, Maller A. Production, immobilization and application of invertase from new wild strain Cunninghamella echinulata PA3S12MM. J Appl Microbiol 2021; 132:2832-2843. [PMID: 34850500 DOI: 10.1111/jam.15394] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/24/2021] [Accepted: 11/27/2021] [Indexed: 11/30/2022]
Abstract
AIMS The objective of this study was to determine the best conditions to produce invertase by Cunninghamella echinulata PA3S12MM and to immobilize and apply the enzyme. METHODS AND RESULTS The maximum production was verified in 8 days of cultivation at 28°C supplemented with 10 g L-1 apple peel, reaching 1054.85 U ml-1 . The invertase was purified from the DEAE-Sephadex column. The derivative immobilized in alginate-gelatin-calcium phosphate showed reusability >50% for 19 cycles. The derivative immobilized in glutaraldehyde-chitosan showed greater thermostability and at a different pH. The hydrolysis of 15 ml of sucrose 500 g L-1 in a fixed bed reactor (total volume of 31 ml) produced 24.44 µmol min-1 of glucose and fructose at a residence time of 30 min and a conversion factor of 0.5. CONCLUSIONS The new wild strain C. echinulata PA3S12MM presents high invertase production in medium supplemented with an agro-industrial residue and the immobilized enzyme showed high thermal stability and resistance at a different pH. SIGNIFICANCE AND IMPACT OF THE STUDY The fungus C. echinulata PA3S12MM is an excellent producer of invertases in Vogel medium supplemented with apple peel. The enzyme is promising for industrial application since it has good performance in reusability and inverted sugar production.
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Affiliation(s)
- Letícia Mara Rasbold
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil
| | - Vitória Maciel Delai
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil
| | | | - Márcia Regina Simões
- Centro de Engenharias e Ciências Exatas, Universidade Estadual do Oeste do Paraná, Toledo, Paraná, Brazil
| | | | | | - Rita de Cássia Garcia Simão
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil
| | - Marina Kimiko Kadowaki
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil
| | - Alexandre Maller
- Centro de Ciências Médicas e Farmacêuticas, Universidade Estadual do Oeste do Paraná, Cascavel, Paraná, Brazil
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Industrially Important Fungal Enzymes: Productions and Applications. Fungal Biol 2021. [DOI: 10.1007/978-3-030-68260-6_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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β-Fructofuranosidase and β -D-Fructosyltransferase from New Aspergillus carbonarius PC-4 Strain Isolated from Canned Peach Syrup: Effect of Carbon and Nitrogen Sources on Enzyme Production. ScientificWorldJournal 2019; 2019:6956202. [PMID: 30728756 PMCID: PMC6341271 DOI: 10.1155/2019/6956202] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 11/16/2018] [Accepted: 12/02/2018] [Indexed: 11/17/2022] Open
Abstract
β-fructofuranosidase (invertase) and β-D-fructosyltransferase (FTase) are enzymes used in industrial processes to hydrolyze sucrose aiming to produce inverted sugar syrup or fructooligosaccharides. In this work, a black Aspergillus sp. PC-4 was selected among six filamentous fungi isolated from canned peach syrup which were initially screened for invertase production. Cultivations with pure carbon sources showed that invertase and FTase were produced from glucose and sucrose, but high levels were also obtained from raffinose and inulin. Pineapple crown was the best complex carbon source for invertase (6.71 U/mL after 3 days of cultivation) and FTase production (14.60 U/mL after 5 days of cultivation). Yeast extract and ammonium chloride nitrogen sources provided higher production of invertase (6.80 U/mL and 6.30 U/mL, respectively), whereas ammonium nitrate and soybean protein were the best nitrogen sources for FTase production (24.00 U/mL and 24.90 U/mL, respectively). Fermentation parameters for invertase using yeast extract were YP/S = 536.85 U/g and PP = 1.49 U/g/h. FTase production showed values of YP/S = 2,627.93 U/g and PP = 4.4 U/h using soybean protein. The screening for best culture conditions showed an increase of invertase production values by 5.10-fold after 96 h cultivation compared to initial experiments (fungi bioprospection), while FTase production increased by 14.60-fold (44.40 U/mL) after 168 h cultivation. A. carbonarius PC-4 is a new promising strain for invertase and FTase production from low cost carbon sources, whose synthesized enzymes are suitable for the production of inverted sugar, fructose syrups, and fructooligosaccharides.
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Lincoln L, More SS. Comparative evaluation of extracellular β-d-fructofuranosidase in submerged and solid-state fermentation produced by newly identified Bacillus subtilis strain. J Appl Microbiol 2018; 125:441-456. [PMID: 29663625 DOI: 10.1111/jam.13881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 03/17/2018] [Accepted: 04/04/2018] [Indexed: 01/05/2023]
Abstract
AIMS To screen and identify a potential extracellular β-d-fructofuranosidase or invertase-producing bacterium from soil, and comparatively evaluate the enzyme biosynthesis under submerged and solid-state fermentation (SSF). METHODS AND RESULTS Extracellular invertase-producing bacteria were screened from soil. Identification of the potent bacterium was performed based on microscopic examinations and 16S rDNA molecular sequencing. Bacillus subtilis LYN12 invertase secretion was surplus with wheat bran humidified with molasses medium (70%), with elevated activity at 48 h and 37°C under SSF, whereas under submerged conditions, increased activity was observed at 24 h and 45°C in the molasses medium. The study revealed a simple fermentative medium for elevated production of extracellular invertase from a fast growing Bacillus strain. CONCLUSIONS Bacterial invertases are scarce and limited reports are available. By far, this is the first report on the comparative analysis of optimization of extracellular invertase synthesis from B. subtilis strain by submerged and SSF. The use of agricultural residues increased yields resulting in the development of a cost-effective and stable approach. SIGNIFICANCE AND IMPACT OF THE STUDY Bacillus subtilis LYN12 invertase possesses excellent fermenting capability to utilize agro-industrial residues under submerged and solid-state conditions. This could be a beneficial candidate in food and beverage processing industries.
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Affiliation(s)
- L Lincoln
- Department of Biochemistry, Centre for Post Graduate Studies, Jain University, Bengaluru, Karnataka, India
| | - S S More
- School of Basic and Applied Sciences, Dayananda Sagar University, Bengaluru, Karnataka, India
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β-(1→6)-D-glucan secreted during the optimised production of exopolysaccharides by Paecilomyces variotii has immunostimulatory activity. Antonie van Leeuwenhoek 2017; 111:981-994. [PMID: 29236232 DOI: 10.1007/s10482-017-1000-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 12/05/2017] [Indexed: 10/18/2022]
Abstract
Paecilomyces variotii is a filamentous fungus that occurs worldwide in soil and decaying vegetation. Optimization of the fermentation process for exopolysaccharide (EPS) production from the fungus P. variotii, structure determination and immuno-stimulating activity of EPS were performed. Response surface methodology (RSM) coupled with central composite design (CCD) was used to optimize the physical and chemical factors required to produce EPS in submerged fermentation. Preliminary investigations to choose the three factors for the present work were made using a factorial experimental design. Glucose, ammonium nitrate (NH4NO3) and pH were used as variables for which, with constant temperature of 28 °C and agitation of 90 rpm, the optimal process parameters were determined as glucose values of 0.96%, NH4NO3 0.26% and pH 8.0. The three parameters presented significant effects. In this condition of culture, the main composition of the isolated EPS was a linear β-(1 → 6)-linked-D-glucan, as determined by Nuclear Magnetic Resonance (NMR) and methylation analysis. This polysaccharide is a very unusual as an EPS from fungi, especially a filamentous fungus such as P. variotii. Murine peritoneal macrophages cultivated with β-glucan for 6 and 48 h showed an increase in TNF-α, IL-6 and nitric oxide release with increased polysaccharide concentrations. Therefore, we conclude that the β-(1 → 6)-linked-D-glucan produced in optimised conditions of P. variotii cultivation has an immune-stimulatory activity on murine macrophages.
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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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Fernandes MLP, Jorge JA, Guimarães LHS. Characterization of an extracellular β-d
-fructofuranosidase produced by Aspergillus niveus
during solid-state fermentation (SSF) of cassava husk. J Food Biochem 2017. [DOI: 10.1111/jfbc.12443] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - João Atílio Jorge
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto - USP; São Paulo Ribeirão Preto Brazil
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10
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Li R, Li J, Liao X, Wang Y. Purification and characterisation of soluble acid invertase from mango fruits. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Renjie Li
- College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
- Beijing Key Laboratory for Food Nonthermal Processing; Beijing 100083 China
- Chinese National Engineering Research Center for Fruit and Vegetable Processing; Beijing 100083 China
- Key Lab of Fruit and Vegetable Processing; Ministry of Agriculture; Beijing 100083 China
| | - Jingyu Li
- College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
- Beijing Key Laboratory for Food Nonthermal Processing; Beijing 100083 China
- Chinese National Engineering Research Center for Fruit and Vegetable Processing; Beijing 100083 China
- Key Lab of Fruit and Vegetable Processing; Ministry of Agriculture; Beijing 100083 China
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
- Beijing Key Laboratory for Food Nonthermal Processing; Beijing 100083 China
- Chinese National Engineering Research Center for Fruit and Vegetable Processing; Beijing 100083 China
- Key Lab of Fruit and Vegetable Processing; Ministry of Agriculture; Beijing 100083 China
| | - Yongtao Wang
- College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 China
- Beijing Key Laboratory for Food Nonthermal Processing; Beijing 100083 China
- Chinese National Engineering Research Center for Fruit and Vegetable Processing; Beijing 100083 China
- Key Lab of Fruit and Vegetable Processing; Ministry of Agriculture; Beijing 100083 China
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Effect of glucose as a carbon repressor on the extracellular proteome of Aspergillus niger during the production of amylases by solid state cultivation. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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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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Gonçalves HB, Jorge JA, Guimarães LHS. Production and Characterization of an Extracellular β-d
-Fructofuranosidase from Fusarium Graminearum
During Solid-State Fermentation Using Wheat Bran as a Carbon Source. J Food Biochem 2016. [DOI: 10.1111/jfbc.12253] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Heloísa Bressan Gonçalves
- Instituto de Química de Araraquara - UNESP; Rua Prof. Mario Degni s/n, Quitandinha Araraquara São Paulo Brazil
| | - João Atílio Jorge
- Departamento de Biologia - Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto - USP; Avenida Bandeirantes 3900 14040-901 Ribeirão Preto São Paulo Brazil
| | - Luis Henrique Souza Guimarães
- Departamento de Biologia - Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto - USP; Avenida Bandeirantes 3900 14040-901 Ribeirão Preto São Paulo Brazil
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Pérez de los Santos AI, Cayetano-Cruz M, Gutiérrez-Antón M, Santiago-Hernández A, Plascencia-Espinosa M, Farrés A, Hidalgo-Lara ME. Improvement of catalytical properties of two invertases highly tolerant to sucrose after expression in Pichia pastoris . Effect of glycosylation on enzyme properties. Enzyme Microb Technol 2016; 83:48-56. [DOI: 10.1016/j.enzmictec.2015.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022]
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Ohara A, Soares de Castro RJ, Goia Nishide T, Gonçalves Dias FF, Pavan Bagagli M, Harumi Sato H. Invertase production by Aspergillus niger under solid state fermentation: Focus on physical–chemical parameters, synergistic and antagonistic effects using agro-industrial wastes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.06.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Herrera Bravo de Laguna I, Toledo Marante FJ, Mioso R. Enzymes and bioproducts produced by the ascomycete fungus Paecilomyces variotii. J Appl Microbiol 2015; 119:1455-66. [PMID: 26274842 DOI: 10.1111/jam.12934] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/05/2015] [Accepted: 08/06/2015] [Indexed: 11/28/2022]
Abstract
Due its innate ability to produce extracellular enzymes which can provide eco-friendly solutions for a variety of biotechnological applications, Paecilomyces variotii is a potential source of industrial bioproducts. In this review, we report biotechnological records on the biochemistry of different enzymes produced by the fermentation of the P. variotii fungus, including tannases, phytases, cellulases, xylanases, chitinases, amylases and pectinases. Additionally, the main physicochemical properties which can affect the enzymatic reactions of the enzymes involved in the conversion of a huge number of substrates to high-value bioproducts are described. Despite all the background information compiled in this review, more research is required to consolidate the catalytic efficiency of P. variotii, which must be optimized so that it is more accurate and reproducible on a large scale.
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Affiliation(s)
- I Herrera Bravo de Laguna
- Department of Biology, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Canary Islands, Spain
| | - F J Toledo Marante
- Department of Chemistry, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Canary Islands, Spain
| | - R Mioso
- Department of Chemistry, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Canary Islands, Spain
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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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Characterization of a thermo-tolerant mycelial β-fructofuranosidase from Aspergillus phoenicis under submerged fermentation using wheat bran as carbon source. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.05.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Das D, Bose A, Chattopadhyay P, Ray L. Production and Characterization of a Crude Thermostable Invertase fromCryptococcus laurentiiS23. INDIAN CHEMICAL ENGINEER 2015. [DOI: 10.1080/00194506.2015.1006143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Martínez D, Menéndez C, Echemendia FM, Pérez ER, Trujillo LE, Sobrino A, Ramírez R, Quintero Y, Hernández L. Complete sucrose hydrolysis by heat-killed recombinant Pichia pastoris cells entrapped in calcium alginate. Microb Cell Fact 2014; 13:87. [PMID: 24943124 PMCID: PMC4078364 DOI: 10.1186/1475-2859-13-87] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 05/21/2014] [Indexed: 11/10/2022] Open
Abstract
Background An ideal immobilized biocatalyst for the industrial-scale production of invert sugar should stably operate at elevated temperatures (60-70°C) and high sucrose concentrations (above 60%, w/v). Commercial invertase from the yeast Saccharomyces cerevisiae is thermolabile and suffers from substrate inhibition. Thermotoga maritima β-fructosidase (BfrA) is the most thermoactive and thermostable sucrose-hydrolysing enzyme so far identified and allows complete inversion of the substrate in highly concentrated solutions. Results In this study, heat-killed Pichia pastoris cells bearing N-glycosylated BfrA in the periplasmic space were entrapped in calcium alginate beads. The immobilized recombinant yeast showed maximal sucrose hydrolysis at pH 5–7 and 90°C. BfrA was 65% active at 60°C and had no activity loss after incubation without the substrate at this temperature for 15 h. Complete inversion of cane sugar (2.04 M) at 60°C was achieved in batchwise and continuous operation with respective productivities of 4.37 and 0.88 gram of substrate hydrolysed per gram of dry beads per hour. The half-life values of the biocatalyst were 14 and 20 days when operated at 60°C in the stirred tank and the fixed-bed column, respectively. The reaction with non-viable cells prevented the occurrence of sucrose fermentation and the formation of by-products. Six-month storage of the biocatalyst in 1.46 M sucrose (pH 5.5) at 4°C caused no reduction of the invertase activity. Conclusions The features of the novel thermostable biocatalyst developed in this study are more attractive than those of immobilized S. cerevisiae cells for application in the enzymatic manufacture of inverted sugar syrup in batch and fixed-bed reactors.
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Affiliation(s)
| | | | | | | | - Luis E Trujillo
- Plant-Microbe Interactions Laboratory, Center for Genetic Engineering and Biotechnology (CIGB), Ave 31 entre 158 y 190, Apartado Postal 6162, Habana 10600, Cuba.
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Characterization of the co-purified invertase and β-glucosidase of a multifunctional extract from Aspergillus terreus. World J Microbiol Biotechnol 2013; 30:1501-10. [DOI: 10.1007/s11274-013-1570-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 11/27/2013] [Indexed: 11/25/2022]
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Gonçalves HB, Jorge JA, Oliveira WP, Souza CRF, Guimarães LHS. Extracellular β-fructofuranosidase from Fusarium graminearum: stability of the spray-dried enzyme in the presence of different carbohydrates. J Microencapsul 2013; 30:624-31. [PMID: 23489014 DOI: 10.3109/02652048.2013.770097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Microbial enzymes have been used for various biotechnological applications; however, enzyme stabilization remains a challenge for industries and needs to be considered. This study describes the effects of spray-drying conditions on the activity and stability of β-fructofuranosidase from Fusarium graminearum. The extracellular enzyme β-fructofuranosidase was spray dried in the presence of stabilizers, including starch (Capsul) (SC), microcrystalline cellulose (MC), trehalose (TR), lactose (LC) and β-cyclodextrin (CD). In the presence of TR (2% w/v), the enzymatic activity was fully retained. After 1 year of storage, 74% of the enzymatic activity was maintained with the CD stabilizer (10% w/v). The residual activity was maintained as high as 80% for 1 h at 70°C when MC, SC and CD (5% w/v) stabilizers were used. Spray drying with carbohydrates was effective in stabilizing the F. graminearum β-fructofuranosidase, improved enzymatic properties compared to the soluble enzyme and demonstrated a potential use in future biotechnology applications.
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Taskin M, Esim N, Genisel M, Ortucu S, Hasenekoglu I, Canli O, Erdal S. ENHANCEMENT OF INVERTASE PRODUCTION BYAspergillus nigerOZ-3 USING LOW-INTENSITY STATIC MAGNETIC FIELDS. Prep Biochem Biotechnol 2013; 43:177-88. [DOI: 10.1080/10826068.2012.713431] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Alves JNEO, Jorge JA, Guimarães LHS. Production of Invertases by Anamorphic (<i>Aspergillus nidulans</i>) and Teleomorphic (<i>Emericela nidulans</i>) Fungi under Submerged Fermentation Using Rye Flour as Carbon Source. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/aim.2013.35057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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