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Abdella B, Youssif AM, Sabry SA, Ghozlan HA. Production, purification, and characterization of cold-active lipase from the psychrotroph Pseudomonas sp. A6. Braz J Microbiol 2023; 54:1623-1633. [PMID: 37531003 PMCID: PMC10484855 DOI: 10.1007/s42770-023-01079-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 07/22/2023] [Indexed: 08/03/2023] Open
Abstract
Cold-active lipases are presently employed extensively in the detergent, chemical intermediate, fine chemical, food, and pharmaceutical industries. Seven cold-adaptive bacteria were isolated from the Mediterranean Sea near Alexandria, Egypt, and tested for their ability to produce cold-active lipase, with the highest activity at 10 °C. The most potent isolate was Pseudomonas sp. A6. To determine the most important variables, the bacterium was exposed to a necessary medium component and environmental factor screening using a single factor-at-a-time approach, followed by a multifactorial Plackett-Burman design strategy. After purification and characterization, the optimal activity levels for the cold-active lipase were figured out. Inoculation of Pseudomonas A6 under near optimum conditions using medium consisting of (g/L) peptone 7.14; soybean oil 7.5% (v/v); K2HPO4, 0.4; MgSO4, 0.1; glucose 2; pH 8; and temperature 10 °C led to a maximum lipase activity anticipated to be 23.36 U/mL. Purified lipase showed the best activity and thermal stability at a pH of 8 and a temperature of 10 °C. The Pseudomonas A6 lipase tolerated the monovalent ions, while greater valence ions did not.
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Affiliation(s)
- Bahaa Abdella
- Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Asmaa Mohamed Youssif
- Botany & Microbiology Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
| | - Soraya A Sabry
- Botany & Microbiology Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt
| | - Hanan A Ghozlan
- Botany & Microbiology Department, Faculty of Science, Alexandria University, Alexandria, 21511, Egypt.
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Structural Insights into Carboxylic Polyester-Degrading Enzymes and Their Functional Depolymerizing Neighbors. Int J Mol Sci 2021; 22:ijms22052332. [PMID: 33652738 PMCID: PMC7956259 DOI: 10.3390/ijms22052332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 11/28/2022] Open
Abstract
Esters are organic compounds widely represented in cellular structures and metabolism, originated by the condensation of organic acids and alcohols. Esterification reactions are also used by chemical industries for the production of synthetic plastic polymers. Polyester plastics are an increasing source of environmental pollution due to their intrinsic stability and limited recycling efforts. Bioremediation of polyesters based on the use of specific microbial enzymes is an interesting alternative to the current methods for the valorization of used plastics. Microbial esterases are promising catalysts for the biodegradation of polyesters that can be engineered to improve their biochemical properties. In this work, we analyzed the structure-activity relationships in microbial esterases, with special focus on the recently described plastic-degrading enzymes isolated from marine microorganisms and their structural homologs. Our analysis, based on structure-alignment, molecular docking, coevolution of amino acids and surface electrostatics determined the specific characteristics of some polyester hydrolases that could be related with their efficiency in the degradation of aromatic polyesters, such as phthalates.
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Xie F, Thiri M, Wang H. Simultaneous heterotrophic nitrification and aerobic denitrification by a novel isolated Pseudomonas mendocina X49. BIORESOURCE TECHNOLOGY 2021; 319:124198. [PMID: 33038648 DOI: 10.1016/j.biortech.2020.124198] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/21/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Six bacterial strains with simultaneous nitrification-denitrification abilities were isolated from a Beijing sewage treatment plant to improve nitrogen biodegradation efficiency. One of these strains, X49, was identified as Pseudomonas mendocina, and was characterized as the best strain with which to rapidly degrade a high concentration of inorganic nitrogen. X49 completely converted 5-100 mg.L-1 of ammonia in 12 h, with no nitrite accumulation; the maximum removal rate of 26.39 mg (N).L-1.h-1 was achieved between 4 h and 6 h. In 16 h, the strain removed 100 mg.L-1 nitrite and 72.61 mg.L-1 nitrate under aerobic conditions, at degredation rates which reached 4.54 and 6.25 mg (N).L-1.h-1, respectively. Our results suggest that P. mendocina X49 achieved efficient and simultaneous nitrification and denitrification ability under heterotrophic aerobic conditions.
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Affiliation(s)
- Fengxing Xie
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Tianjin Institute of Agricultural Resources and Environment, Tianjin Academy of Agricultural Science, Tianjin 300384, China
| | - Myat Thiri
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Hui Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
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Nathan VK, Rani ME. A cleaner process of deinking waste paper pulp using Pseudomonas mendocina ED9 lipase supplemented enzyme cocktail. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:36498-36509. [PMID: 32562224 DOI: 10.1007/s11356-020-09641-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Lipase enzyme has a critical role in deinking process along with other lignocellulosic enzymes. In this paper, we try to demonstrate the role of lipase in the enzyme cocktail used for enzymatic deinking. For this, we identified a potential lipolytic bacterium, Pseudomonas mendocina ED9 isolated from elephant dung with a molecular weight of 35 kDa. During the Box-Benhken model optimization, a maximum lipase activity of 105.12 U/g, which was 12.36-fold higher than the initial enzyme activity and 1.3-fold higher than the activity obtained during the Plackett Burman design, was achieved. A maximum lipase activity of 105.12 U/g was obtained after optimization. Ammonium sulphate (60%) precipitation resulted in a specific activity of 68.19 U/mg with a 1.4-fold purification and yield of 64%. Lipase from P. mendocina ED9 exhibited a Km of 0.5306 mM and Vmax of 25.0237 μmol/min/mg. A Δ brightness of approximately 14.5% were achieved during the enzymatic deinking using cocktail comprised of cellulase, xylanase and lipase. This reports the significant role and efficacy of lipase in enzyme cocktails for deinking applications. This formulation will reduce the pollution and environmental toxicity of conventional chemical deinking.
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Affiliation(s)
- Vinod Kumar Nathan
- School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, Tamil Nadu, 613401, India.
- Research Centre, Department of Botany and Microbiology, Lady Doak College, Madurai, Tamil Nadu, 625002, India.
| | - Mary Esther Rani
- Research Centre, Department of Botany and Microbiology, Lady Doak College, Madurai, Tamil Nadu, 625002, India
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Xie F, Zhang F, Zhou K, Zhao Q, Sun H, Wang S, Zhao Y, Fu J. Breeding of high protein Chlorella sorokiniana using protoplast fusion. BIORESOURCE TECHNOLOGY 2020; 313:123624. [PMID: 32593146 DOI: 10.1016/j.biortech.2020.123624] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/31/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
To improve Chlorella's economic viability as a natural bait in aquaculture, protoplast fusion technology was used for two Chlorella mutants, H10 and Z13, selected by UV and chemical mutagenesis. Chlorella sorokiniana protoplast was prepared using the enzyme method, and then the optimal enzyme combination of 4% cellulase and 2% driselase was screened out. Z13 and H10 protoplast preparation rates reached 34.72% and 31.11%, respectively. Nine fusions with higher growth rates were selected to assess their biomass, total and soluble proteins contents. Dry cell weight, total protein, and soluble protein of fusion R7 were 0.92 g.L-1, 67.16%, and 0.59 mg.g-1, respectively. The biomass was 1.59, 1.43 times that of H10 and Z13; total and soluble proteins increased by 8.89%, 10.25% and 50.12%, 74.62% respectively, compared with the original algae. These results have implications for breeding excellent strains, and for large-scale and optimal application of Chlorella in aquaculture.
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Affiliation(s)
- Fengxing Xie
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China.
| | - Fengfeng Zhang
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
| | - Ke Zhou
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
| | - Qiong Zhao
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
| | - Haibo Sun
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
| | - Shu Wang
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
| | - Yujie Zhao
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
| | - Jinran Fu
- Tianjin Research Center of Agricultural Biotechnology, Tianjin 300384, China
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Sonkar K, Singh D. Biochemical characterization and thermodynamic study of lipase from psychrotolerant Pseudomonas punonensis. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kumar A, Mukhia S, Kumar N, Acharya V, Kumar S, Kumar R. A Broad Temperature Active Lipase Purified From a Psychrotrophic Bacterium of Sikkim Himalaya With Potential Application in Detergent Formulation. Front Bioeng Biotechnol 2020; 8:642. [PMID: 32671041 PMCID: PMC7329984 DOI: 10.3389/fbioe.2020.00642] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/26/2020] [Indexed: 12/17/2022] Open
Abstract
Bacterial lipases with activity spanning over a broad temperature and substrate range have several industrial applications. An efficient enzyme-producing bacterium Chryseobacterium polytrichastri ERMR1:04, previously reported from Sikkim Himalaya, was explored for purification and characterization of cold-adapted lipase. Optimum lipase production was observed in 1% (v/v) rice bran oil, pH 7 at 20°C. Size exclusion and hydrophobic interaction chromatography purified the enzyme up to 21.3-fold predicting it to be a hexameric protein of 250 kDa, with 39.8 kDa monomeric unit. MALDI-TOF-MS analysis of the purified lipase showed maximum similarity with alpha/beta hydrolase (lipase superfamily). Biochemical characterization of the purified enzyme revealed optimum pH (8.0), temperature (37°C) and activity over a temperature range of 5–65°C. The tested metals (except Cu2+ and Fe2+) enhanced the enzyme activity and it was tolerant to 5% (v/v) methanol and isopropanol. The Km and Vmax values were determined as 0.104 mM and 3.58 U/mg, respectively for p-nitrophenyl palmitate. Bioinformatics analysis also supported in vitro findings by predicting enzyme's broad temperature and substrate specificity. The compatibility of the purified lipase with regular commercial detergents, coupled with its versatile temperature and substrate range, renders the given enzyme a promising biocatalyst for potential detergent formulations.
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Affiliation(s)
- Anil Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Srijana Mukhia
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India.,Department of Microbiology, Guru Nanak Dev University, Amritsar, India
| | - Neeraj Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Vishal Acharya
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Sanjay Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Rakshak Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
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Sandi J, Mata-Araya I, Aguilar F. Diversity of Lipase-Producing Microorganisms from Tropical Oilseeds Elaeis guineensis, Ricinus communis, and Jatropha curcas L. from Costa Rica. Curr Microbiol 2020; 77:943-952. [PMID: 31982967 DOI: 10.1007/s00284-020-01886-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 01/14/2020] [Indexed: 10/25/2022]
Abstract
Tropical oleaginous seeds are an unexplored source for the discovery of novel lipolytic microorganisms, which could be applied to the bioremediation of agro-industrial oily wastes and solve numerous environmental issues. Such wastes hold potential to be revalorized towards a variety of products through microbial bioremediation. In this study, we investigate the microbial diversity and lipase activity from bacterial and fungal isolates obtained from the oil seeds of Elaeis guineensis, Ricinus communis, and Jatropha curcas L. from Costa Rica. A total of 27 strains were confirmed as lipase-producing strains via fluorogenic and colorimetric agar plate assays. The diversity of the isolates comprises 12 fungal ascomycetes from the genera Aspergillus and Fusarium and 15 bacterial isolates classified into four genera: Serratia, Proteus, Pseudomonas, and Bacillus. Microbial isolates from E. guineensis showed the highest diversity of lipolytic microorganisms (6 genera) followed by J. curcas (4 genera) and R. communis (2 genera). Isolates showing the highest activity in agar plates were tested further by submerged fermentation and the specific lipase activity was measured with 4-nitrophenyl laurate as substrate. Accordingly, the highest specific lipase activity was demonstrated by Bacillus pumilus B5 (24.98 U mg-1), Serratia marcescens B10 (17.65 U mg-1), Pseudomonas mendocina B16 (8.62 U mg-1), and Bacillus pumilus B1 (5.72 U mg-1) in submerged fermentation. These findings indicate the presence of a specialized microbial diversity in tropical oil seeds and highlight their potential to be applied in the bioremediation of agro-industrial oily wastes.
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Affiliation(s)
- Javier Sandi
- School of Biology, Costa Rican Institute of Technology, Cartago, Costa Rica
| | - Iray Mata-Araya
- Bioprocess Unit, National Center for Biotechnological Innovations of Costa Rica - CENIBiot, San José, Costa Rica
| | - Francisco Aguilar
- Bioprocess Unit, National Center for Biotechnological Innovations of Costa Rica - CENIBiot, San José, Costa Rica.
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9
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Sahoo RK, Das A, Sahoo K, Sahu A, Subudhi E. Characterization of novel metagenomic–derived lipase from Indian hot spring. Int Microbiol 2019; 23:233-240. [DOI: 10.1007/s10123-019-00095-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 06/06/2019] [Accepted: 07/29/2019] [Indexed: 12/14/2022]
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10
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Purification, Characterization and Application of Tannase Enzyme Isolated from Marine Aspergillus nomius GWA5. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2018. [DOI: 10.22207/jpam.12.4.30] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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11
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Biodiesel production from microalgae oil by lipase from Pseudomonas aeruginosa displayed on yeast cell surface. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.09.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Kang LJ, Meng ZT, Hu C, Zhang Y, Guo HL, Li Q, Li M. Screening, purification, and characterization of a novel organic solvent-tolerant esterase, Lip2, from Monascus purpureus strain M7. Extremophiles 2017; 21:345-355. [DOI: 10.1007/s00792-016-0907-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 12/19/2016] [Indexed: 12/01/2022]
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13
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A Calcium-Ion-Stabilized Lipase from Pseudomonas stutzeri ZS04 and its Application in Resolution of Chiral Aryl Alcohols. Appl Biochem Biotechnol 2016; 180:1456-1466. [DOI: 10.1007/s12010-016-2179-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 06/22/2016] [Indexed: 10/21/2022]
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14
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Purification and characterization of lipase from Burkholderia sp. EQ3 isolated from wastewater from a canned fish factory and its application for the synthesis of wax esters. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.02.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Mello Bueno PR, de Oliveira TF, Castiglioni GL, Soares Júnior MS, Ulhoa CJ. Application of lipase from Burkholderia cepacia in the degradation of agro-industrial effluent. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 71:957-964. [PMID: 25860696 DOI: 10.2166/wst.2015.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study aimed to analyze the physical and chemical characteristics of Amano PS commercial lipase - Burkholderia cepacia and lipase produced by Burkholderia cepacia strain ATCC 25416, in addition to studying the hydrolysis of agro-industrial effluent collected in a fried potato industry. The optimum temperature for increasing lipase activity was 37 °C. The temperature increase caused a decrease in thermostability of lipase, and the commercial lipase was less stable, with values of 10.5, 4.6 and 4.9%, respectively, lower than those obtained by lipase from strain ATCC 25416, at temperatures of 40, 50 and 60 °C. The enzymatic activity was higher in alkaline conditions, achieving better results at pH 8.0. The pH was the variable that most influenced the hydrolysis of triacylglycerides of the agro-industrial effluent, followed by enzyme concentration, and volume of gum arabic used in the reaction medium. Thus, it can be observed that the enzymatic hydrolytic process of the studied effluent presents a premising contribution to reduction of environmental impacts of potato chip processing industries.
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Affiliation(s)
| | - Tatianne Ferreira de Oliveira
- School of Agronomy, Department of Food Engineering, Federal University of Goiás-UFG, Campus Samambaia, Rodovia Goiânia-Nova Veneza, Km-0-Caixa Postal 131, CEP 74690-900, Goiânia, Brazil E-mail:
| | - Gabriel Luis Castiglioni
- School of Agronomy, Department of Food Engineering, Federal University of Goiás-UFG, Campus Samambaia, Rodovia Goiânia-Nova Veneza, Km-0-Caixa Postal 131, CEP 74690-900, Goiânia, Brazil E-mail:
| | - Manoel Soares Soares Júnior
- School of Agronomy, Department of Food Engineering, Federal University of Goiás-UFG, Campus Samambaia, Rodovia Goiânia-Nova Veneza, Km-0-Caixa Postal 131, CEP 74690-900, Goiânia, Brazil E-mail:
| | - Cirano Jose Ulhoa
- University of Goiás - UFG Universidade Federal de Goiás, Institute of Biological Sciences, Department of Biochemistry and Molecular Biology, Caixa Postal 131, CEP 74001-970 - Goiânia, Brazil
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Obtaining lipases from byproducts of orange juice processing. Food Chem 2014; 163:103-7. [DOI: 10.1016/j.foodchem.2014.04.090] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/14/2014] [Accepted: 04/24/2014] [Indexed: 11/22/2022]
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17
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Patel V, Nambiar S, Madamwar D. An extracellular solvent stable alkaline lipase from Pseudomonas sp. DMVR46: Partial purification, characterization and application in non-aqueous environment. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.06.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Li XL, Zhang WH, Wang YD, Dai YJ, Zhang HT, Wang Y, Wang HK, Lu FP. A high-detergent-performance, cold-adapted lipase from Pseudomonas stutzeri PS59 suitable for detergent formulation. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.01.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Li SX, Ma Q, Lin K, Wu JJ, Wu YX, Xu JH. Essential Role of Gly33 in a Novel Organic Solvent-Tolerant Lipase from Serratia marcescens ECU1010 as Determined by Site-Directed Mutagenesis. Appl Biochem Biotechnol 2014; 172:2945-54. [DOI: 10.1007/s12010-013-0690-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 12/25/2013] [Indexed: 11/30/2022]
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20
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Identification of organic solvent-tolerant lipases from organic solvent-sensitive microorganisms. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Anbu P. CHARACTERIZATION OF AN EXTRACELLULAR LIPASE BYPseudomonas koreensisBK-L07 ISOLATED FROM SOIL. Prep Biochem Biotechnol 2013; 44:266-80. [DOI: 10.1080/10826068.2013.812564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Li M, Yang LR, Xu G, Wu JP. Screening, purification and characterization of a novel cold-active and organic solvent-tolerant lipase from Stenotrophomonas maltophilia CGMCC 4254. BIORESOURCE TECHNOLOGY 2013; 148:114-20. [PMID: 24050922 DOI: 10.1016/j.biortech.2013.08.101] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 08/15/2013] [Accepted: 08/17/2013] [Indexed: 05/20/2023]
Abstract
An extracellular organic solvent-tolerant and cold-active lipase producing bacterium was isolated from oil-contaminated soil samples, and identified taxonomically as Stenotrophomonas maltophilia. The lipase from S. maltophilia CGMCC 4254 (SML) was purified 60.5-fold to homogeneity with 38.9 U/mg specific activity. Partially purified SML displayed remarkable stability in 50% and 100% (v/v) hydrophobic organic solvents after incubation for 7 days. The enzyme also retained more than 50% of its residual activity in several pure hydrophilic organic solvents after incubation for 7 days. SML showed 57% maximum activity at 5°C, and had optimal activity at 35°C. These unique properties of SML make it promising as a biocatalyst for industrial processes.
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Affiliation(s)
- Mu Li
- Institute of Bioengineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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23
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Bose A, Keharia H. Production, characterization and applications of organic solvent tolerant lipase by Pseudomonas aeruginosa AAU2. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2013. [DOI: 10.1016/j.bcab.2013.03.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Lipase from Pseudomonas stutzeri: Purification, homology modelling and rational explanation of the substrate binding mode. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.11.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Lailaja VP, Chandrasekaran M. Detergent compatible alkaline lipase produced by marine Bacillus smithii BTMS 11. World J Microbiol Biotechnol 2013; 29:1349-60. [DOI: 10.1007/s11274-013-1298-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 02/19/2013] [Indexed: 10/27/2022]
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26
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Wu X, You P, Su E, Xu J, Gao B, Wei D. In vivo functional expression of a screened P. aeruginosa chaperone-dependent lipase in E. coli. BMC Biotechnol 2012; 12:58. [PMID: 22950599 PMCID: PMC3497882 DOI: 10.1186/1472-6750-12-58] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 09/03/2012] [Indexed: 11/28/2022] Open
Abstract
Background Microbial lipases particularly Pseudomonas lipases are widely used for biotechnological applications. It is a meaningful work to design experiments to obtain high-level active lipase. There is a limiting factor for functional overexpression of the Pseudomonas lipase that a chaperone is necessary for effective folding. As previously reported, several methods had been used to resolve the problem. In this work, the lipase (LipA) and its chaperone (LipB) from a screened strain named AB which belongs to Pseudomonas aeruginosa were overexpressed in E. coli with two dual expression plasmid systems to enhance the production of the active lipase LipA without in vitro refolding process. Results In this work, we screened a lipase-produced strain named AB through the screening procedure, which was identified as P. aeruginosa on the basis of 16S rDNA. Genomic DNA obtained from the strain was used to isolate the gene lipA (936 bp) and lipase specific foldase gene lipB (1023 bp). One single expression plasmid system E. coli BL21/pET28a-lipAB and two dual expression plasmid systems E. coli BL21/pETDuet-lipA-lipB and E. coli BL21/pACYCDuet-lipA-lipB were successfully constructed. The lipase activities of the three expression systems were compared to choose the optimal expression method. Under the same cultured condition, the activities of the lipases expressed by E. coli BL21/pET28a-lipAB and E. coli BL21/pETDuet-lipA-lipB were 1300 U/L and 3200 U/L, respectively, while the activity of the lipase expressed by E. coli BL21/pACYCDuet-lipA-lipB was up to 8500 U/L. The lipase LipA had an optimal temperature of 30°C and an optimal pH of 9 with a strong pH tolerance. The active LipA could catalyze the reaction between fatty alcohols and fatty acids to generate fatty acid alkyl esters, which meant that LipA was able to catalyze esterification reaction. The most suitable fatty acid and alcohol substrates for esterification were octylic acid and hexanol, respectively. Conclusions The effect of different plasmid system on the active LipA expression was significantly different. pACYCDuet-lipA-lipB was more suitable for the expression of active LipA than pET28a-lipAB and pETDuet-lipA-lipB. The LipA showed obvious esterification activity and thus had potential biocatalytic applications. The expression method reported here can give reference for the expression of those enzymes that require chaperones.
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Affiliation(s)
- Xiangping Wu
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, China
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Lipase from marine strain using cooked sunflower oil waste: production optimization and application for hydrolysis and thermodynamic studies. Bioprocess Biosyst Eng 2012; 36:301-15. [PMID: 22833226 DOI: 10.1007/s00449-012-0785-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 06/30/2012] [Indexed: 10/28/2022]
Abstract
The marine strain Pseudomonas otitidis was isolated to hydrolyze the cooked sunflower oil (CSO) followed by the production of lipase. The optimum culture conditions for the maximum lipase production were determined using Plackett-Burman design and response surface methodology. The maximum lipase production, 1,980 U/ml was achieved at the optimum culture conditions. After purification, an 8.4-fold purity of lipase with specific activity of 5,647 U/mg protein and molecular mass of 39 kDa was obtained. The purified lipase was stable at pH 5.0-9.0 and temperature 30-80 °C. Ca(2+) and Triton X-100 showed stimulatory effect on the lipase activity. The purified lipase was highly stable in the non-polar solvents. The functional groups of the lipase were determined by Fourier transform-infrared (FT-IR) spectroscopy. The purified lipase showed higher hydrolytic activity towards CSO over the other cooked oil wastes. About 92.3 % of the CSO hydrolysis was observed by the lipase at the optimum time 3 h, pH 7.5 and temperature 35 °C. The hydrolysis of CSO obeyed pseudo first order rate kinetic model. The thermodynamic properties of the lipase hydrolysis were studied using the classical Van't Hoff equation. The hydrolysis of CSO was confirmed by FT-IR studies.
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28
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Kretza E, Papaneophytou CP, Papi RM, Karidi K, Kiparissides C, Kyriakidis DA. Lipase activity in Thermus thermophilus HB8: Purification and characterization of the extracellular enzyme. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-011-0481-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Ramani K, Sekaran G. Production of lipase from Pseudomonas gessardii using blood tissue lipid and thereof for the hydrolysis of blood cholesterol and triglycerides and lysis of red blood cells. Bioprocess Biosyst Eng 2012; 35:885-96. [DOI: 10.1007/s00449-011-0673-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 12/21/2011] [Indexed: 11/29/2022]
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30
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Gaur R, Khare SK. Solvent tolerant Pseudomonads as a source of novel lipases for applications in non-aqueous systems. BIOCATAL BIOTRANSFOR 2011. [DOI: 10.3109/10242422.2011.609588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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31
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Dahiya P, Arora P, Chaudhury A, Chand S, Dilbaghi N. Characterization of an extracellular alkaline lipase from Pseudomonas mendocina M-37. J Basic Microbiol 2010; 50:420-6. [PMID: 20586067 DOI: 10.1002/jobm.200900377] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A strain of Pseudomonas mendocina producing extracellular lipase was isolated from soil. The bacterium accumulates lipase in culture fluid when grown aerobically at 30 °C for 24 h in a medium composed of olive oil (1%) as substrate. Pseudomonas mendocina lipase was optimally active at pH 9.0, temperature of 50 °C and was found to be stable between pH 7.0-11.0. The lipase was inhibited by detergents such as SDS and Tween-80. The enzyme was stable in various organic solvents tested with maximum stability in chloroform followed by toluene and exhibited 1-3 regiospecificity for hydrolytic reaction. This lipase was capable of hydrolyzing a variety of lipidic substrates and is mainly active towards synthetic triglycerides and fatty acid esters that possess a butyryl group. Metal ions like Mg(2+), Ca(2+) and Na(+) stimulated lipase activity, whereas, Cu(2+), Mn(2+) and Hg(2+) ions caused inhibition.
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Affiliation(s)
- Praveen Dahiya
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, India
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32
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Purification, characterization and application of acidic lipase from Pseudomonas gessardii using beef tallow as a substrate for fats and oil hydrolysis. Process Biochem 2010. [DOI: 10.1016/j.procbio.2010.06.023] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Ramani K, Chockalingam E, Sekaran G. Production of a novel extracellular acidic lipase from Pseudomonas gessardii using slaughterhouse waste as a substrate. J Ind Microbiol Biotechnol 2010; 37:531-5. [PMID: 20204455 DOI: 10.1007/s10295-010-0700-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2009] [Accepted: 02/10/2010] [Indexed: 10/19/2022]
Abstract
An isolate exhibiting high extracellular lipolytic activity was identified as Pseudomonas gessardii by 16S rDNA gene sequence analysis. The slaughterhouse waste, goat tallow, was used as a lipid substrate for the production of acidic lipase by P. gessardii. The maximum lipase activity of 156 U/ml was observed at an acidic pH of 3.5 and at 0.31 g substrate concentration. The purification steps resulted in the isolation of acidic lipase with a specific activity of 1,473 U/mg and a molecular weight of 94 kDa. One interesting feature of this purified lipase is its stability at highly acidic pH ranging from 2.0 to 5.5 with a high molecular weight. The amino acid composition was determined using HPLC. This acidic lipase has potential applications in the medicinal field as a substitute for pancreatic lipases for enzyme therapy, oleochemical and in biotechnological industries.
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Affiliation(s)
- K Ramani
- Environmental Technology Division, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai, Tamilnadu, India
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34
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Rao L, Zhao X, Pan F, Li Y, Xue Y, Ma Y, Lu JR. Solution behavior and activity of a halophilic esterase under high salt concentration. PLoS One 2009; 4:e6980. [PMID: 19759821 PMCID: PMC2736375 DOI: 10.1371/journal.pone.0006980] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Accepted: 08/01/2009] [Indexed: 11/19/2022] Open
Abstract
Background Halophiles are extremophiles that thrive in environments with very high concentrations of salt. Although the salt reliance and physiology of these extremophiles have been widely investigated, the molecular working mechanisms of their enzymes under salty conditions have been little explored. Methodology/Principal Findings A halophilic esterolytic enzyme LipC derived from archeaon Haloarcula marismortui was overexpressed from Escherichia coli BL21. The purified enzyme showed a range of hydrolytic activity towards the substrates of p-nitrophenyl esters with different alkyl chains (n = 2−16), with the highest activity being observed for p-nitrophenyl acetate, consistent with the basic character of an esterase. The optimal esterase activities were found to be at pH 9.5 and [NaCl] = 3.4 M or [KCl] = 3.0 M and at around 45°C. Interestingly, the hydrolysis activity showed a clear reversibility against changes in salt concentration. At the ambient temperature of 22°C, enzyme systems working under the optimal salt concentrations were very stable against time. Increase in temperature increased the activity but reduced its stability. Circular dichroism (CD), dynamic light scattering (DLS) and small angle neutron scattering (SANS) were deployed to determine the physical states of LipC in solution. As the salt concentration increased, DLS revealed substantial increase in aggregate sizes, but CD measurements revealed the maximal retention of the α-helical structure at the salt concentration matching the optimal activity. These observations were supported by SANS analysis that revealed the highest proportion of unimers and dimers around the optimal salt concentration, although the coexistent larger aggregates showed a trend of increasing size with salt concentration, consistent with the DLS data. Conclusions/Significance The solution α-helical structure and activity relation also matched the highest proportion of enzyme unimers and dimers. Given that all the solutions studied were structurally inhomogeneous, it is important for future work to understand how the LipC's solution aggregation affected its activity.
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Affiliation(s)
- Lang Rao
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Xiubo Zhao
- Biological Physics Laboratory, School of Physics and Astronomy, the University of Manchester, Manchester, United Kingdom
| | - Fang Pan
- Biological Physics Laboratory, School of Physics and Astronomy, the University of Manchester, Manchester, United Kingdom
| | - Yin Li
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yanfen Xue
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yanhe Ma
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- * E-mail: (YM); (JRL)
| | - Jian R. Lu
- Biological Physics Laboratory, School of Physics and Astronomy, the University of Manchester, Manchester, United Kingdom
- * E-mail: (YM); (JRL)
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35
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Wang X, Yu X, Xu Y. Homologous expression, purification and characterization of a novel high-alkaline and thermal stable lipase from Burkholderia cepacia ATCC 25416. Enzyme Microb Technol 2009. [DOI: 10.1016/j.enzmictec.2009.05.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Wang H, Liu R, Lu F, Qi W, Shao J, Ma H. A novel alkaline and low-temperature lipase ofBurkholderia cepacia isolated from Bohai in China for detergent formulation. ANN MICROBIOL 2009. [DOI: 10.1007/bf03175606] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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37
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Wang SL, Lin YT, Liang TW, Chio SH, Ming LJ, Wu PC. Purification and characterization of extracellular lipases from Pseudomonas monteilii TKU009 by the use of soybeans as the substrate. J Ind Microbiol Biotechnol 2009; 36:65-73. [PMID: 18810517 DOI: 10.1007/s10295-008-0473-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 09/10/2008] [Indexed: 10/21/2022]
Abstract
A lipase-producing bacterium was isolated and identified as Pseudomonas monteilii TKU009. A lipase (F2) and lipase-like materials (F1) were purified from the culture supernatant of P. monteilii TKU009 with soybean powder as the sole carbon/nitrogen source. The molecular mass of F1 and F2 was estimated to be 44 kDa by SDS-PAGE and gel filtration. The optimum pH, optimum temperature, and pH and thermal stabilities of F2 were 7, 40 degrees C, 8-11, and 50 degrees C; and of F1 were 6, 40 degrees C, 6-7, and 50 degrees C, respectively. F2 was completely inhibited by EDTA and slightly by Mg(2+), Fe(2+), Mn(2+), and SDS. F1 was completely inhibited by EDTA and Fe(2+) and strongly by Zn(2+), Mn(2+), Ca(2+), Mg(2+), and SDS. The activities of both the enzymes were enhanced by the addition of non-ionic surfactants Triton X-100 and Tween 40, especially for F1. F2 preferably acted on substrates with a long chain (C10-C18) of fatty acids, while F1 showed a broad spectrum on those with chain length of C4-C18. The marked activity of F2 in organic solvents makes it an ideal choice for application in a water-restricted medium including organic synthesis.
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Affiliation(s)
- San-Lang Wang
- Graduate Institute of Life Sciences, Tamkang University, Tamsui, 251, Taiwan.
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38
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Gaur R, Gupta A, Khare S. Purification and characterization of lipase from solvent tolerant Pseudomonas aeruginosa PseA. Process Biochem 2008. [DOI: 10.1016/j.procbio.2008.05.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Zhao LL, Xu JH, Zhao J, Pan J, Wang ZL. Biochemical properties and potential applications of an organic solvent-tolerant lipase isolated from Serratia marcescens ECU1010. Process Biochem 2008. [DOI: 10.1016/j.procbio.2008.01.023] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Karadzic I, Masui A, Zivkovic LI, Fujiwara N. Purification and characterization of an alkaline lipase from Pseudomonas aeruginosa isolated from putrid mineral cutting oil as component of metalworking fluid. J Biosci Bioeng 2007; 102:82-9. [PMID: 17027868 DOI: 10.1263/jbb.102.82] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2005] [Accepted: 04/25/2006] [Indexed: 11/17/2022]
Abstract
Extracellular lipase was isolated and purified from the culture broth of Pseudomonas aeruginosa, an extremophile which naturally grows in water-soluble mineral cutting oil (pH 10) used as metalworking fluid (MWF) for cooling and lubrication in industrial metalworking processes. The molecular mass of the purified lipase was estimated by SDS-PAGE to be 54 kDa. The optimum pH and temperature were 11 and 70 degrees C, respectively. The enzyme is stabile over a broad pH range (pH 4-11.5). The lipase preferably acted on triacylglycerols with medium-chain fatty acids. The lipase was inhibited strongly by Zn(2+), Hg(2+), Cu(2+) and slightly by Ca(2+) and Mg(2+). Non-ionic detergents and sodiumdeoxycholate enhanced lipase activity. Alkaline lipase from P. aeruginosa, capable of growing in a water-restricted medium has excellent properties and good potential for biotechnological applications in the metal industry. Its marked stability and activity in organic solvents suggest that this lipase is highly suitable as a biotechnological tool in a water-restricted medium with a variety of applications including organosynthetic reactions and the control and prevention of MWF putrification in the metal industry.
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Affiliation(s)
- Ivanka Karadzic
- School of Medicine, Department of Chemistry, Belgrade University, Visegradska 26, 11000 Belgrade, Serbia and Montenegro.
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41
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Kanwar SS, Ghazi IA, Chimni SS, Joshi GK, Rao GV, Kaushal RK, Gupta R, Punj V. Purification and properties of a novel extra-cellular thermotolerant metallolipase of Bacillus coagulans MTCC-6375 isolate. Protein Expr Purif 2006; 46:421-8. [PMID: 16290008 DOI: 10.1016/j.pep.2005.10.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2005] [Revised: 10/04/2005] [Accepted: 10/05/2005] [Indexed: 10/25/2022]
Abstract
A novel extra-cellular lipase from Bacillus coagulans MTCC-6375 was purified 76.4-fold by DEAE anion exchange and Octyl Sepharose chromatography. The purified enzyme was found to be electrophoretically pure by denaturing gel electrophoresis and possessed a molecular mass of approximately 103 kDa. The lipase was optimally active at 45 degrees C and retained approximately 50% of its original activity after 20 min of incubation at 55 degrees C. The enzyme was optimally active at pH 8.5. Mg2+, Cu2+, Ca2+, Hg2+, Al3+, and Fe3+ at 1mM enhanced hydrolytic activity of the lipase. Interestingly, Hg2+ ions resulted in a maximal increase in lipase activity but Zn2+ and Co2+ ions showed an antagonistic effect on this enzyme. EDTA at 150 mM concentration inhibited the activity of lipase but Hg2+ or Al3+ (10mM) restored most of the activity of EDTA-quenched lipase. Phenyl methyl sulfonyl fluoride (PMSF, 15 mM) decreased 98% of original activity of lipase. The lipase was more specific to p-nitrophenyl esters of 8 (pNPC) and 16 (pNPP) carbon chain length esters. The lipase had a Vmax and Km of 0.44 mmol mg(-1)min(-1) and 28 mM for hydrolysis of pNPP, and 0.7 mmol mg(-1)min(-1) and 32 mM for hydrolysis of pNPC, respectively.
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Affiliation(s)
- S S Kanwar
- Department of Biotechnology, Himachal Pradesh University, Shimla-171 005, India.
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42
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Rahman RNZRA, Baharum SN, Basri M, Salleh AB. High-yield purification of an organic solvent-tolerant lipase from Pseudomonas sp. strain S5. Anal Biochem 2005; 341:267-74. [PMID: 15907872 DOI: 10.1016/j.ab.2005.03.006] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2004] [Indexed: 11/23/2022]
Abstract
An organic solvent-tolerant S5 lipase was purified by affinity chromatography and anion exchange chromatography. The molecular mass of the lipase was estimated to be 60 kDa with 387 purification fold. The optimal temperature and pH were 45 degrees C and 9.0, respectively. The purified lipase was stable at 45 degrees C and pH 6-9. It exhibited the highest stability in the presence of various organic solvents such as n-dodecane, 1-pentanol, and toluene. Ca2+ and Mg2+ stimulated lipase activity, whereas EDTA had no effect on its activity. The S5 lipase exhibited the highest activity in the presence of palm oil as a natural oil and triolein as a synthetic triglyceride. It showed random positional specificity on the thin-layer chromatography.
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43
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Kumar S, Kikon K, Upadhyay A, Kanwar SS, Gupta R. Production, purification, and characterization of lipase from thermophilic and alkaliphilic Bacillus coagulans BTS-3. Protein Expr Purif 2005; 41:38-44. [PMID: 15802219 DOI: 10.1016/j.pep.2004.12.010] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2004] [Revised: 12/09/2004] [Indexed: 10/26/2022]
Abstract
A thermophilic isolate Bacillus coagulans BTS-3 produced an extracellular alkaline lipase, the production of which was substantially enhanced when the type of carbon source, nitrogen source, and the initial pH of culture medium were consecutively optimized. Lipase activity 1.16 U/ml of culture medium was obtained in 48 h at 55 degrees C and pH 8.5 with refined mustard oil as carbon source and a combination of peptone and yeast extract (1:1) as nitrogen sources. The enzyme was purified 40-fold to homogeneity by ammonium sulfate precipitation and DEAE-Sepharose column chromatography. Its molecular weight was 31 kDa on SDS-PAGE. The enzyme showed maximum activity at 55 degrees C and pH 8.5, and was stable between pH 8.0 and 10.5 and at temperatures up to 70 degrees C. The enzyme was found to be inhibited by Al3+, Co2+, Mn2+, and Zn2+ ions while K+, Fe3+, Hg2+, and Mg2+ ions enhanced the enzyme activity; Na+ ions have no effect on enzyme activity. The purified lipase showed a variable specificity/hydrolytic activity towards various 4-nitrophenyl esters.
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Affiliation(s)
- Satyendra Kumar
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla-171 005, India
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44
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Lima VM, Krieger N, Mitchell DA, Baratti JC, Filippis ID, Fontana JD. Evaluation of the potential for use in biocatalysis of a lipase from a wild strain of Bacillus megaterium. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcatb.2004.07.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Bendikien≐ V, Surin≐nait≐ B, Juodka B, Safarikova M. Insights into catalytic action mechanism of Pseudomonas mendocina 3121-1 lipase. Enzyme Microb Technol 2004. [DOI: 10.1016/j.enzmictec.2004.01.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Tripathi MK, Roy U, Jinwal UK, Jain SK, Roy P. Cloning, sequencing and structural features of a novel Streptococcus lipase. Enzyme Microb Technol 2004. [DOI: 10.1016/j.enzmictec.2003.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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