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de Oliveira RL, da Silva WB, Couto KS, Porto TS. Sequential cultivation method for β-fructofuranosidase production from Aspergillus tamarii URM4634, evaluation of their biochemical and kinetic/thermodynamic characteristics, and application on sucrose hydrolysis. 3 Biotech 2024; 14:186. [PMID: 39077623 PMCID: PMC11283445 DOI: 10.1007/s13205-024-04027-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 07/14/2024] [Indexed: 07/31/2024] Open
Abstract
The present study focused on evaluating the sequential fermentation (SF) method for FFase production from Aspergillus tamarii URM4634 using soybean bran as substrate. The SF was performed using soybean bran as substrate at 72 h and 30 °C and the maximum hydrolytic activity (44.00 U mL-1), corresponding to an increase of 2.98-fold to about SmF using sucrose as substrate. Already the maximum transfructosylating activity was 26.10 U mL-1. The FFase presents maximum hydrolytic activity at pH 5.0-6.0 and transfructosylating at pH 6.0 and 60 °C for both enzyme activities. The enzyme showed a typical hydrolytic kinetic profile evidenced by more affinity by sucrose hydrolysis reaction than the fructosyl transfer one. From kinetic and thermodynamic data of thermal denaturation, it was observed that the enzyme presents suitable at 55 °C, evidenced by the large half-life (990.21 min) and D values (3289.41 min). The maximum release of reducing sugars (8.45 g L-1) was obtained in hydrolysis of 20% sucrose during 180 min. The results obtained for FFase production by SF proved that this method can be used satisfactorily for sucrose-degrading enzymes and can contribute to the development of the SF technique to produce different industrial-interest enzymes.
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Affiliation(s)
- Rodrigo Lira de Oliveira
- Federal University of Agreste of Pernambuco (UFAPE), Multi-User Food Science and Technology Laboratory, Garanhuns, Pernambuco Brazil
| | - Wanessa Braz da Silva
- School of Food Engineering, Federal University of Agreste of Pernambuco (UFAPE), Garanhuns, Pernambuco Brazil
| | - Karollayny Santos Couto
- School of Food Engineering, Federal University of Agreste of Pernambuco (UFAPE), Garanhuns, Pernambuco Brazil
| | - Tatiana Souza Porto
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco (UFRPE), Recife, Pernambuco Brazil
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Itakorode BO, Itakorode DI, Torimiro N, Okonji RE. Kinetic and thermodynamic investigation of Rhodanese synthesized by enhanced Klebsiella oxytoca JCM 1665 strain: a comparative between the free and immobilized enzyme entrapped in alginate beads. Prep Biochem Biotechnol 2024:1-10. [PMID: 38696619 DOI: 10.1080/10826068.2024.2347407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
Klebsiella oxytoca JCM 1665 was subjected to extracellular rhodanese production using a submerged fermentation technique. The organism was further engineered for higher cyanide tolerance and rhodanese yield using ethylmethanesulfonate as a mutagen. Mutagenesis resulted in an improved mutant with high cyanide tolerance (100 mM) and rhodanese yield (26.7 ± 0.67 U/mL). This yield was 4.34-fold higher than the wild strain (6.15 ± 0.65 U/mL). At temperatures ranging from 30 to 80 °C, the first-order thermal denaturation constant (Kd) for free enzyme increases from 0.00818 to 0.0333 min-1 while the immobilized enzyme increases from 0.003 to 0.0204 min-1. The equivalent half-life reduces from 99 to 21 minutes and 231 to 35 minutes, respectively. Residual activity tests were used to assess the thermodynamic parameters for both enzyme preparations. For the free enzyme, the parameters obtained were enthalpy (29.40 to 29.06 kJ.mol-1), entropy (-194.24 to -197.50 J.mol-1K-1) and Gibbs free energy (90.20 to 98.80 kJ.mol-1). In addition, for immobilized rhodanese, we obtained enthalpy (40.40 to 40.07 kJ.mol-1), entropy (-164.21 to - 165.20 J.mol-1K-1) and Gibbs free energy (91.80 to 98.40 kJ.mol-1. Regarding its operational stability, the enzyme was able to maintain 63% of its activity after being used for five cycles. Immobilized K. oxytoca rhodanese showed a marked resistance to heat inactivation compared to free enzyme forms; making it of utmost significance in many biotechnological applications.
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Affiliation(s)
- Babamotemi Oluwasola Itakorode
- Department of Biotechnology, Osun State University, Osogbo, Nigeria
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University Ile-Ife, Osun State, Nigeria
| | | | - Nkem Torimiro
- Department of Microbiology, Obafemi Awolowo University Ile-Ife, Osun state, Nigeria
| | - Raphael Emuebie Okonji
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University Ile-Ife, Osun State, Nigeria
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da Silva WB, Porto TS, da Silva SP, de Oliveira RL. Optimization strategy for inulinase production by Aspergillus niger URM5741 and its biochemical characterization, kinetic/thermodynamic study, and application on inulin and sucrose hydrolysis. 3 Biotech 2023; 13:376. [PMID: 37881510 PMCID: PMC10593723 DOI: 10.1007/s13205-023-03790-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 09/25/2023] [Indexed: 10/27/2023] Open
Abstract
Inulinases are enzymes of great interest in the food industry, especially due to their application in the synthesis of fructose and fructo-oligosaccharides. Moreover, some inulinases (I) also present invertase activity (S), making them useful for sucrose hydrolysis processes. In the present study, the production of inulinase by Aspergillus niger URM5741 was evaluated and optimized using two statistical approaches. First, the composition of the cultivation medium was determined through a simplex centroid mixture design, followed by the selection of optimal fermentation conditions using the Box-Behnken design. Based on these experimental designs, the maximum activities of inulinase (16.68 U mL-1) and invertase (27.80 U mL-1) were achieved using a mixture of wheat, soy, and oat brans (5 g), along with 2.5% inulin and 40% moisture. The inulinase exhibited optimum temperature and pH of 60 °C and 4.0, respectively, displayed a high affinity for both substrates, as evidenced by very-low Michaelis constant values (1.07-1.54 mM). A relative thermostability was observed at 55-60 °C as indicated by half-lives values (I: 169.06-137.27 min; S: 173.29-141.52 min) and D-values (I: 561.61-456.00 min; S: 575.65-470.11 min) which were further confirmed by the high activation energy (123.01 and 143.29 kJ mol-1). The enzyme demonstrated favorable results in terms of inulin and sucrose hydrolysis, being a maximum release of reducing sugars of 6.04 and 15.80 g L-1, respectively. These results indicate that the sequential statistical approach proved to be beneficial to produce inulinase by A. niger URM5741, with the obtained enzyme considered promising for long-term industrial applications.
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Affiliation(s)
- Wanessa Braz da Silva
- School of Food Engineering, Federal University of the Agreste of Pernambuco/UFAPE, Av. Bom Pastor, Boa Vista, s/n, Garanhuns, PE 55296-901 Brazil
| | - Tatiana Souza Porto
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco/UFRPE, Av. Dom Manoel de Medeiros, s/n, Recife, PE 52171-900 Brazil
| | - Suzana Pedroza da Silva
- School of Food Engineering, Federal University of the Agreste of Pernambuco/UFAPE, Av. Bom Pastor, Boa Vista, s/n, Garanhuns, PE 55296-901 Brazil
| | - Rodrigo Lira de Oliveira
- School of Food Engineering, Federal University of the Agreste of Pernambuco/UFAPE, Av. Bom Pastor, Boa Vista, s/n, Garanhuns, PE 55296-901 Brazil
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Yue J, Chen Y, Wang X, Xu B, Xu Z, Liu X, Chen Z, Zhang K, Jiang W. Artificial phosphatase upon premicellar nanoarchitectonics of lanthanum complexes with long-chained imidazole derivatives. J Colloid Interface Sci 2022; 627:459-468. [PMID: 35868041 DOI: 10.1016/j.jcis.2022.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/17/2022] [Accepted: 07/04/2022] [Indexed: 10/17/2022]
Abstract
Four novel long chain-containing tridentate imidazole derivatives (Ln, n = 1, 2, 3, 4) were synthesized for in situ formation of mononuclear lanthanum(III) complexes as artificial phosphodiesterases. These in-situ formed La(III) complexes (named LaLn) were used to catalyze the transesterification of 2-hydroxypropyl p-nitrophenyl phosphate (HPNP), a classic RNA model. Critical aggregation concentrations (CAC) were determined for the as-prepared tridentate imidazole derivatives as ligands and corresponding mixtures of equivalent ligand and La3+ ion with a mole rate of 1:1. It denotes that the introduction of La3+ ion increases the CAC values of imidazole derivatives by about 2 to 3 folds. Foaming test shows that the foam height is positively correlated with the length of hydrophobic chain. Transesterification of HPNP mediated by LaLn nanoarchitectonics indicates that the introducing of hydrophobic chain benefits rate enhancement, showing excess three orders of magnitude acceleration under physiological conditions (pH 7.0, 25 °C). Moreover, catalytic reactivities of these La(III) complexes increased along with the increase in chain length: LaL1 < LaL2 < LaL3 < LaL4, suggesting a positive correlation to hydrophobic chain length.
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Affiliation(s)
- Jian Yue
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Yu Chen
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Xiuyang Wang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Bin Xu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China.
| | - Zhigang Xu
- School of Pharmacy, Chongqing University of Arts and Sciences, Chongqing, Yongchuan 402160, PR China
| | - Xiaoqiang Liu
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Zhongzhu Chen
- School of Pharmacy, Chongqing University of Arts and Sciences, Chongqing, Yongchuan 402160, PR China
| | - Kaiming Zhang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China
| | - Weidong Jiang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan, Zigong 643000, PR China.
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Ahmadi S, Salehi M, Ausi S. Kinetic and thermodynamic study of aspartic protease extracted from Withania coagulans. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Ademakinwa AN, Agunbiade MO, Fagbohun O. Biodegradation of cyanide in cassava wastewater using a novel thermodynamically-stable immobilized rhodanese. Prep Biochem Biotechnol 2020; 51:607-617. [PMID: 33206023 DOI: 10.1080/10826068.2020.1846053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Extracellular rhodanese obtained from Aureobasidium pullulans was employed in both free and immobilized forms for the biodegradation of cyanide present in cassava processing mill effluent (CPME). Crosslinking with glutaraldehyde (at an optimum concentration of 5% v/v) before entrapment in alginate beads resulted in the highest immobilization yield of 94.5% and reduced enzyme leakage of 1.8%. Rhodanese immobilized by cross-linking before entrapment (cbe) retained about 46% of its initial activity after eight cycles of catalysis compared to the entrapment in alginate alone (eaa) which lost more than 79% after the fifth catalytic cycle. A cross-examination of thermodynamic (ΔGd*, ΔSd*, ΔHd*) kinetic (kd, t1/2, D and z-values) parameters at 30-70 °C showed that cbe displayed a higher resistance to thermal inactivation when compared to the free enzyme (fe) and (eaa). The efficiency of cyanide biodegradation from the CPME by the fe, eaa and cbe were 55, 62, and 74% respectively after 6 h. Rhodanese immobilized via cbe had a higher resistance to thermal denaturation over other enzyme forms. Hence, this makes cbe adaptable for large-scale detoxification of cyanide from CPME.
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Affiliation(s)
| | - Mayowa Oladele Agunbiade
- Applied Microbiology and Health Biotechnology Institute, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Oladapo Fagbohun
- Department of Biomedical Engineering, First Technical University, Ibadan, Nigeria
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Oliveira RLD, Silva MFD, Silva SPD, Cavalcanti JVFL, Converti A, Porto TS. Immobilization of a commercial Aspergillus aculeatus enzyme preparation with fructosyltransferase activity in chitosan beads: A kinetic/thermodynamic study and fructo-oligosaccharides continuous production in enzymatic reactor. FOOD AND BIOPRODUCTS PROCESSING 2020. [DOI: 10.1016/j.fbp.2020.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Pectin hydrolysis in cashew apple juice by Aspergillus aculeatus URM4953 polygalacturonase covalently-immobilized on calcium alginate beads: A kinetic and thermodynamic study. Int J Biol Macromol 2019; 126:820-827. [DOI: 10.1016/j.ijbiomac.2018.12.236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/28/2018] [Accepted: 12/25/2018] [Indexed: 12/17/2022]
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Kinetic and thermodynamic characterization of a novel Aspergillus aculeatus URM4953 polygalacturonase. Comparison of free and calcium alginate-immobilized enzyme. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.07.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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de Oliveira RL, da Silva OS, Converti A, Porto TS. Thermodynamic and kinetic studies on pectinase extracted from Aspergillus aculeatus: Free and immobilized enzyme entrapped in alginate beads. Int J Biol Macromol 2018; 115:1088-1093. [DOI: 10.1016/j.ijbiomac.2018.04.154] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/14/2018] [Accepted: 04/28/2018] [Indexed: 01/30/2023]
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Purification, catalytic, kinetic and thermodynamic characteristics of a novel ficin from Ficus johannis. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2017.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Shruti G, Sukhdev S, Singh KS. Purification and characterization of an extracellular ribonuclease from a Bacillus sp. RNS3 (KX966412). Int J Biol Macromol 2017; 97:440-446. [PMID: 28108407 DOI: 10.1016/j.ijbiomac.2017.01.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/05/2017] [Accepted: 01/11/2017] [Indexed: 02/04/2023]
Abstract
Ribonucleases (RNases) catalyze the degradation of ribonucleic acid (RNA) into smaller nucleotides. RNases display angiogenic, neurotoxic, antitumor and immunosuppressive properties. In the present study, an extracellular RNase was successfully purified to homogeneity from a Bacillus sp. RNS3 (KX966412) by salting out at 0-50% ammonium sulphate saturation followed by the gel permeation (Sephadex G-100) chromatography. The multistep purification resulted in 10.4 fold purification of RNase with a yield of 3.12%. The activity of the purified RNase was found to be 2.02U/mg protein. The purified RNase was monomeric with a molecular weight of 66kDa. It exhibited Michalis-Menten kinetics parameters Kcat 7.92min-1 and Km 0.12mg/mL. The antiproliferative activity of the purified RNase was tested against an established Hep-2C (HeLa derived) cancer cell line in vitro. The purified RNase reduced the viability of the Hep-2C cells significantly with an IC50 value of 3.53μg/mL. The haemolytic activity of purified RNase was also evaluated and unfortunately, it showed a strong haemolytic activity towards human RBCs.
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Affiliation(s)
- Gupta Shruti
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, 171005, India
| | - Singh Sukhdev
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, 171005, India
| | - Kanwar Shamsher Singh
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, 171005, India.
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Thirumurugan A, Ramachandran S, Sivamani S. Bacteriocin Produced from Lactobacillus plantarum ATM11: Kinetic and Thermodynamic Studies. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2016. [DOI: 10.1515/ijfe-2015-0376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, the effect of heat treatment on the activity of bacteriocin from Lactobacillus plantarum ATM11 was studied. The kinetic and thermodynamic parameters were calculated for the thermal inactivation of the bacteriocin over a time–temperature combinations in the range of 30, 45, 60 and 90 min and 60, 65, 70, 75 and 80 °C. Understanding the thermal inactivation of biopreservatives in a food matrix is essential to allow their proper utilization in food industry, enabling the reduction of heating times and optimization of heating temperature. The results indicate the different thermal stabilities with k-values between 0.0159 and 0.0225 min−1. D-values decreased with increase in temperature, indicating faster inactivation of the bacteriocin at higher temperatures. These results suggest that bacteriocin is relatively heat stable with a z-value of 22.85 °C.
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Hameş EE, Demir T. Microbial ribonucleases (RNases): production and application potential. World J Microbiol Biotechnol 2015; 31:1853-62. [PMID: 26433394 DOI: 10.1007/s11274-015-1945-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/07/2015] [Indexed: 01/15/2023]
Abstract
Ribonuclease (RNase) is hydrolytic enzyme that catalyzes the cleavage of phosphodiester bonds in RNA. RNases play an important role in the metabolism of cellular RNAs, such as mRNA and rRNA or tRNA maturation. Besides their cellular roles, RNases possess biological activity, cell stimulating properties, cytotoxicity and genotoxicity. Cytotoxic effect of particular microbial RNases was comparable to that of animal derived counterparts. In this respect, microbial RNases have a therapeutic potential as anti-tumor drugs. The significant development of DNA vaccines and the progress of gene therapy trials increased the need for RNases in downstream processes. In addition, RNases are used in different fields, such as food industry for single cell protein preparations, and in some molecular biological studies for the synthesis of specific nucleotides, identifying RNA metabolism and the relationship between protein structure and function. In some cases, the use of bovine or other animal-derived RNases have increased the difficulties due to the safety and regulatory issues. Microbial RNases have promising potential mainly for pharmaceutical purposes as well as downstream processing. Therefore, an effort has been given to determination of optimum fermentation conditions to maximize RNase production from different bacterial and fungal producers. Also immobilization or strain development experiments have been carried out.
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Affiliation(s)
- E Esin Hameş
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Bornova, Izmir, Turkey.
| | - Tuğçe Demir
- Department of Chemical Engineering, Kocaeli University, Umut Tepe Yerleşkesi, 41380, Kocaeli, Turkey
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Melikoglu M, Lin CSK, Webb C. Kinetic studies on the multi-enzyme solution produced via solid state fermentation of waste bread by Aspergillus awamori. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.09.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sant’Anna V, Cladera-Olivera F, Brandelli A. Kinetic and thermodynamic study of thermal inactivation of the antimicrobial peptide P34 in milk. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.07.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Thermodynamics and Kinetics of Heat Inactivation of a Novel Keratinase from Chryseobacterium sp. Strain kr6. Appl Biochem Biotechnol 2009; 162:548-60. [DOI: 10.1007/s12010-009-8835-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2009] [Accepted: 10/25/2009] [Indexed: 10/20/2022]
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19
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Kinetic and thermodynamic properties of crude and three-phase partitioned polygalacturonase from Aspergillus sojae. J Biotechnol 2007. [DOI: 10.1016/j.jbiotec.2007.07.406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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