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Feiten MC, Morigi I, Di Luccio M, Oliveira JV. Activity and stability of lipase from Candida Antarctica after treatment in pressurized fluids. Biotechnol Lett 2023; 45:287-298. [PMID: 36592260 DOI: 10.1007/s10529-022-03335-x] [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: 03/14/2022] [Revised: 10/13/2022] [Accepted: 11/28/2022] [Indexed: 01/03/2023]
Abstract
Lipase B from Candida antarctica (CalB) is one of the biocatalysts most used in organic synthesis due to its ability to act in several medium, wide substrate specificity and enantioselectivity, tolerance to non-aqueous environment, and resistance to thermal deactivation. Thus, the objective of this work was to treat CalB in supercritical carbon dioxide (SC-CO2) and liquefied petroleum gas (LPG), and measure its activity before and after high-pressure treatment. Residual specific hydrolytic activities of 132% and 142% were observed when CalB was exposed to SC-CO2 at 35 ℃, 75 bar and 1 h and to LPG at 65 ℃, 30 bar and 1 h, respectively. Residual activity of the enzyme treated at high pressure was still above 100% until the 20th day of storage at low temperatures. There was no difference on the residual activity loss of CalB treated with LPG and stored at different temperatures over time. Greater difference was observed between CalB treated with CO2 and flash-frozen in liquid nitrogen (- 196 ℃) followed by storage in freezer (- 10 ℃) and CalB stored in freezer at - 10 ℃. Such findings encourage deeper studies on CalB as well as other enzymes behavior under different types of pressurized fluids aiming at industrial application.
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Affiliation(s)
- Mirian Cristina Feiten
- Department of Technology, State University of Maringá (UEM), Angelo Moreira da Fonseca Ave, Umuarama, Paraná, 87506-370, Brazil.
| | - Iasmin Morigi
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Technology Center/C.P. 476, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Marco Di Luccio
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Technology Center/C.P. 476, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - José Vladimir Oliveira
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Technology Center/C.P. 476, Florianópolis, Santa Catarina, 88040-900, Brazil
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Li H, Wu H, Yu Z, Zhang H, Yang S. CO 2 -Enabled Biomass Fractionation/Depolymerization: A Highly Versatile Pre-Step for Downstream Processing. CHEMSUSCHEM 2020; 13:3565-3582. [PMID: 32285649 DOI: 10.1002/cssc.202000575] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/11/2020] [Indexed: 06/11/2023]
Abstract
Lignocellulosic biomass is inevitably subject to fractionation and depolymerization processes for enhanced selectivity toward specific products, in most cases prior to catalytic upgrading of the three main fractions-cellulose, hemicellulose, and lignin. Among the developed pretreatment techniques, CO2 -assisted biomass processing exhibits some unique advantages such as the lowest critical temperature (31.0 °C) with moderate critical pressure, low cost, nontoxicity, nonflammability, ready availability, and the addition of acidity, alongside easy recovery by pressure release. This Review showcases progress in the study of sub- or supercritical CO2 -mediated thermal processing of lignocellulosic biomass-the key pre-step for downstream conversion processes. The auxo-action of CO2 in biomass pretreatment and fractionation, along with the involved variables, direct degradation of untreated biomass in CO2 by gasification, pyrolysis, and liquefaction with relevant conversion mechanisms, and CO2 -enabled depolymerization of lignocellulosic fractions with representative reaction pathways are summarized. Moreover, future prospects for the practical application of CO2 -assisted up- and downstream biomass-to-bioproduct conversion are also briefly discussed.
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Affiliation(s)
- Hu Li
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for Research & Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou, 550025, P.R. China
| | - Hongguo Wu
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for Research & Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou, 550025, P.R. China
| | - Zhaozhuo Yu
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for Research & Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou, 550025, P.R. China
| | - Heng Zhang
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for Research & Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou, 550025, P.R. China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide & Agricultural Bioengineering, Key Laboratory of Green Pesticide & Agricultural Bioengineering, Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for Research & Development of Fine Chemicals, Guizhou University, Guiyang, Guizhou, 550025, P.R. China
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Feiten MC, Di Luccio M, Santos KF, de Oliveira D, Oliveira JV. X-Ray Crystallography as a Tool to Determine Three-Dimensional Structures of Commercial Enzymes Subjected to Treatment in Pressurized Fluids. Appl Biochem Biotechnol 2016; 182:429-451. [PMID: 27900555 DOI: 10.1007/s12010-016-2336-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/16/2016] [Indexed: 10/20/2022]
Abstract
The study of enzyme function often involves a multi-disciplinary approach. Several techniques are documented in the literature towards determining secondary and tertiary structures of enzymes, and X-ray crystallography is the most explored technique for obtaining three-dimensional structures of proteins. Knowledge of three-dimensional structures is essential to understand reaction mechanisms at the atomic level. Additionally, structures can be used to modulate or improve functional activity of enzymes by the production of small molecules that act as substrates/cofactors or by engineering selected mutants with enhanced biological activity. This paper presentes a short overview on how to streamline sample preparation for crystallographic studies of treated enzymes. We additionally revise recent developments on the effects of pressurized fluid treatment on activity and stability of commercial enzymes. Future directions and perspectives on the the role of crystallography as a tool to access the molecular mechanisms underlying enzymatic activity modulation upon treatment in pressurized fluids are also addressed.
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Affiliation(s)
- Mirian Cristina Feiten
- EQA/UFSC, Department of Chemical and Food Engineering, Federal University of Santa Catarina, C.P. 476, Florianópolis, SC, CEP 88040-900, Brazil
| | - Marco Di Luccio
- EQA/UFSC, Department of Chemical and Food Engineering, Federal University of Santa Catarina, C.P. 476, Florianópolis, SC, CEP 88040-900, Brazil
| | | | - Débora de Oliveira
- EQA/UFSC, Department of Chemical and Food Engineering, Federal University of Santa Catarina, C.P. 476, Florianópolis, SC, CEP 88040-900, Brazil
| | - J Vladimir Oliveira
- EQA/UFSC, Department of Chemical and Food Engineering, Federal University of Santa Catarina, C.P. 476, Florianópolis, SC, CEP 88040-900, Brazil.
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Kobayashi F, Ikeura H, Odake S, Hayata Y. Inactivation kinetics of polyphenol oxidase using a two-stage method with low pressurized carbon dioxide microbubbles. J FOOD ENG 2013. [DOI: 10.1016/j.jfoodeng.2012.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Evaluation of structure and hydrolysis activity of Candida rugosa Lip7 in presence of sub-/super-critical CO₂. Enzyme Microb Technol 2012; 51:354-8. [PMID: 23040391 DOI: 10.1016/j.enzmictec.2012.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 07/19/2012] [Accepted: 08/08/2012] [Indexed: 11/20/2022]
Abstract
This work aimed to assess the effect of sub-/super-critical CO₂ on the structure and activity of Candida rugosa Lip7 (CRL7) in its solution form. The structure was examined by SDS-PAGE gel electrophoresis, circular dichroism (CD) and fluorescence spectra photometry. Results revealed that the primary structure remained intact after sub-/super-critical CO₂ treatment, and the secondary structure altered at the pressure of 10 MPa and temperature 40°C for 30 min incubation, but it was reflex to its native form with increasing incubation time up to 150 min under 10 MPa and 40 °C. Meanwhile, the tertiary structure via fluorescence spectra analysis showed that the intensity of the maximal emission wavelength at 338 nm decreased under the conditions of 10 MPa and 40°C for 150 min. Furthermore, the residue hydrolysis activity and kinetics constants (V(max) and K(m)) of CRL7 treated with sub-/super-critical CO₂ were also investigated. In cases of 6 MPa and 35°C, or 10 MPa and 40°C for 30 min, activity variance of CRL7 was maybe caused by its secondary structure alteration. But in case of 10 MPa and 40°C for 150 min, the tertiary structure change was perhaps responsibility for CRL7 activity enhancement.
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Senyay-Oncel D, Yesil-Celiktas O. Activity and stability enhancement of α-amylase treated with sub- and supercritical carbon dioxide. J Biosci Bioeng 2011; 112:435-40. [PMID: 21824817 DOI: 10.1016/j.jbiosc.2011.07.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 06/17/2011] [Accepted: 07/10/2011] [Indexed: 11/17/2022]
Abstract
Various physical, chemical and genetic approaches have been applied in order to enhance enzyme stability and activity. In this study, the aim was to investigate the capability of sub- and supercritical carbon dioxide to alter the stability and activity of α-amylase as an alternative technique. The effects of operational parameters such as pressure (50-300 bar), temperature (28-80 °C), CO₂ flow (2-10 g min⁻¹) and time (60-180 min) were evaluated in regard to the activity and stability of fungal based α-amylase from Aspergillus oryzea. The activity of untreated enzyme was determined as 17,726 μmol/ml/min. While both sub- and supercritical conditions enhanced the activity, the increase in flow rate had an adverse effect and the activity was decreased by 28.9% at a flow rate of 10 g min⁻¹ under supercritical conditions. Nuclear magnetic resonance (NMR) spectra of untreated enzyme and treated samples exhibiting the lowest and the highest activities were almost identical except for the chemical shifts observed at the lowest activity sample from 4.0 to 4.4 ppm which were assigned to protons of hydrogen-bonded groups. Optimum conditions were determined as 240 bar, 41 °C, 4 g min⁻¹ CO₂ flow and 150 min of process duration yielding 67.7% (29,728 μmol/ml/min) higher activity than the untreated enzyme providing fundamental basis for enzymatic applications.
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Affiliation(s)
- Deniz Senyay-Oncel
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 Bornova-Izmir, Turkey
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