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Production of Extracellular Lipase by Bacillus halotolerans from Oil-Contaminated Soil in a Pilot-Scale Submerged Bioreactor. Processes (Basel) 2022. [DOI: 10.3390/pr10081548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Microbial lipases are the biocatalyst of choice for the present and future because of their characteristics, including their ability to remain active as an enzyme throughout a broad pH, temperature, and substrate range. The goal of the current investigation was to find novel sources of substrates and isolates from soil contaminated by oil for the synthesis of lipase. On tributyrin media, 10 lipolytic bacterial strains that were isolated from oil-contaminated soil were grown. Using the zone of clearance, it was possible to identify the isolates with the highest activity. Following phylogenetic tree analysis, molecular characterization of the 16S rRNA sequence of the bacterial isolates revealed that it was Bacillus halotolerans (VSH 09). The enzyme was purified to near homogeneity. The enzyme activity was found to be optimum at a pH of 7.0 and a temperature of 35 °C. While Ni2+ and Cu2+ had no effect, the presence of Mg2+ and Ca2+ exhibited the highest levels of enzyme activity. At 1%, tributyrin as a substrate exhibited its highest level of activity. The molecular weight, as determined by SDS-PAGE, was found to be 38 kDa. The kinetics of the enzyme were found to be 41.66 and 9.37 mg/mL for Vmax and Km, respectively. The high yield of lipase produced by this method suggests that it holds potential for production on a large scale and could be used for various biotechnological applications.
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Mostafa A, Elsamadony M, El-Dissouky A, Elhusseiny A, Tawfik A. Biological H 2 potential harvested from complex gelatinaceous wastewater via attached versus suspended growth culture anaerobes. BIORESOURCE TECHNOLOGY 2017; 231:9-18. [PMID: 28189089 DOI: 10.1016/j.biortech.2017.01.062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/23/2017] [Accepted: 01/27/2017] [Indexed: 06/06/2023]
Abstract
The effect of cultural growth treating gelatinaceous wastewater on hydrogen fermentative was assessed using up-flow multi-stage anaerobic sponge reactor (UMASR) and anaerobic sequencing batch reactor (AnSBR). Both reactors were operated at five hydraulic retention times (HRTs). UMASR achieved the maximum COD removal efficiency of 60.2±4.4% at HRT of 48h. Moreover, UMASR exhibited superiority in the course of carbohydrates and proteins removal efficiencies' of 100 and 52.5±2.4% due to high amylase and protease activities' of 4.1±0.3 and 0.032±0.002U, respectively. Contrariwise, AnSBR assigned for the peak hydrogen production rate of 1.17±0.14L/L/day at HRT of 24-h. Lipase activity was quite high (0.307±0.023U) in AnSBR resulting in removal efficiency of 35.2±2.1% for lipids. Stover-Kincannon model emphasized that UMASR required lesser volume than AnSBR to sustain the same substrate degradation efficacy. Nevertheless, the net gain energy harvested from AnSBR surpassed UMASR by 4.0-folds at HRT of 24-h.
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Affiliation(s)
- Alsayed Mostafa
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria 21321, Egypt.
| | - Mohamed Elsamadony
- Public Works Engineering Department, Faculty of Engineering, Tanta University, 31521 Tanta City, Egypt
| | - Ali El-Dissouky
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria 21321, Egypt
| | - Amel Elhusseiny
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, Alexandria 21321, Egypt
| | - Ahmed Tawfik
- Environmental Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), P.O. Box 179, New Borg El Arab City, Alexandria 21934, Egypt; National Research Centre, Water Pollution Research Dept., P.O. 12622, Giza, Egypt.
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Qiao H, Zhang F, Guan W, Zuo J, Feng D. Optimisation of combi-lipases from Aspergillus niger
for the synergistic and efficient hydrolysis of soybean oil. Anim Sci J 2016; 88:772-780. [DOI: 10.1111/asj.12718] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 08/11/2016] [Accepted: 08/23/2016] [Indexed: 12/01/2022]
Affiliation(s)
- Hanzhen Qiao
- SCAU-UniOil Feeding Oil﹠Fat Research Centre; Guangzhou China
- College of Animal Science; South China Agricultural University; Guangzhou China
| | - Fei Zhang
- SCAU-UniOil Feeding Oil﹠Fat Research Centre; Guangzhou China
- College of Animal Science; South China Agricultural University; Guangzhou China
| | - Wutai Guan
- SCAU-UniOil Feeding Oil﹠Fat Research Centre; Guangzhou China
- College of Animal Science; South China Agricultural University; Guangzhou China
| | - Jianjun Zuo
- SCAU-UniOil Feeding Oil﹠Fat Research Centre; Guangzhou China
| | - Dingyuan Feng
- SCAU-UniOil Feeding Oil﹠Fat Research Centre; Guangzhou China
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Optimization of Fermentation Medium for Extracellular Lipase Production from Aspergillus niger Using Response Surface Methodology. BIOMED RESEARCH INTERNATIONAL 2015; 2015:497462. [PMID: 26366414 PMCID: PMC4558457 DOI: 10.1155/2015/497462] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 08/08/2015] [Accepted: 08/10/2015] [Indexed: 11/27/2022]
Abstract
Lipase produced by Aspergillus niger is widely used in various industries. In this study, extracellular lipase production from an industrial producing strain of A. niger was improved by medium optimization. The secondary carbon source, nitrogen source, and lipid were found to be the three most influential factors for lipase production by single-factor experiments. According to the statistical approach, the optimum values of three most influential parameters were determined: 10.5 g/L corn starch, 35.4 g/L soybean meal, and 10.9 g/L soybean oil. Using this optimum medium, the best lipase activity was obtained at 2,171 U/mL, which was 16.4% higher than using the initial medium. All these results confirmed the validity of the model. Furthermore, results of the Box-Behnken Design and quadratic models analysis indicated that the carbon to nitrogen (C/N) ratio significantly influenced the enzyme production, which also suggested that more attention should be paid to the C/N ratio for the optimization of enzyme production.
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Maldonado RR, Aguiar-Oliveira E, Pozza EL, Costa FAA, Filho FM, Rodrigues MI. Production of Lipase from Geotrichum candidum Using Corn Steep Liquor in Different Bioreactors. J AM OIL CHEM SOC 2014. [DOI: 10.1007/s11746-014-2552-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Bruno HO, Valéria ML. Chicken fat and inorganic nitrogen source for lipase production by Fusarium sp. (Gibberella fujikuroi complex). ACTA ACUST UNITED AC 2014. [DOI: 10.5897/ajb2013.13502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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7
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Romero CM, Pera LM, Loto F, Vallejos C, Castro G, Baigori MD. Purification of an organic solvent-tolerant lipase from Aspergillus niger MYA 135 and its application in ester synthesis. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2012. [DOI: 10.1016/j.bcab.2011.08.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Liu W, Jia B, Zhao H, Xu L, Yan Y. Preparation of a whole-cell biocatalyst of Aspergillus niger lipase and its practical properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:10426-10430. [PMID: 20828152 DOI: 10.1021/jf1008555] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Aspergillus niger lipase (ANL), a widely used hydrolase, was displayed for the first time on the surface of Saccharomyces cerevisiae using a-agglutinin as an anchor protein. Localization of ANL on the cell surface was confirmed by immunofluorescence microscopy. The displayed ANL was confirmed to be active toward tributyrin and p-nitrophenyl caprylate (pNPC). The hydrolytic activity toward pNPC reached 43.8 U/g of dry cell weight after induction by galactose for 72 h. The ANL-displaying cells were characterized for their use as whole-cell biocatalysts. The optimum temperature was 45 °C, and the pH was 7.0. The cells had good thermostability, retaining almost 80% of the full activity after incubation at 60 °C for 1 h, and >80% of the full activity at 50 °C for 6 h. The displayed lipase showed a preference for medium-chain fatty acid p-nitrophenyl esters. Therefore, the produced whole-cell catalyst is likely to have a wide range of applications.
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Affiliation(s)
- Wenshan Liu
- Key Laboratory of Molecular Biophysics, Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Production of multifunctional lipases by Penicillium verrucosum and Penicillium brevicompactum under solid state fermentation of babassu cake and castor meal. Bioprocess Biosyst Eng 2010; 34:145-52. [PMID: 20652598 DOI: 10.1007/s00449-010-0455-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 07/07/2010] [Indexed: 10/19/2022]
Abstract
The main objective of this work was to optimize lipase production, in terms of hydrolytic and esterification activities, by Penicillium brevicompactum and Penicillium verrucosum in solid state fermentation using agroindustrial residues as raw material. Maxima hydrolytic activities of 48.6 and 87.7 U/g were achieved when P. brevicompactum was cultured in babassu cake and castor meal, respectively. Higher esterification activities (around 244 U/g) were achieved when P. brevicompactum was used as microorganism and babassu cake as raw material. Different experimental conditions led to these promising values, clearly showing that no correlation can be attributed between hydrolytic and esterification activities. In spite of the several applications of lipases which are capable of catalyze synthesis reactions, only few works in this subject are presented in the literature, especially when low cost raw materials are used.
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Yang J, Sun J, Yan Y. lip2, a novel lipase gene cloned from Aspergillus niger exhibits enzymatic characteristics distinct from its previously identified family member. Biotechnol Lett 2010; 32:951-6. [PMID: 20213520 DOI: 10.1007/s10529-010-0238-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Accepted: 02/05/2010] [Indexed: 11/26/2022]
Abstract
We have cloned a novel lipase gene, lip2, from Aspergillus niger and expressed it in Escherichia coli. Upon purification of the recombinant Lip2 protein, its properties were characterized. In comparison with a previously identified lipase Lip1, both enzymes are acid lipases (optimal pH <6.5), Ca(2+)-dependent and PMSF-sensitive, but have different molecular weights (35 and 43 kDa), optimal substrate spectra (C10 and C8), optimal reaction temperatures (45 and 50 degrees C) and thermal stability. Circular dichroism spectroscopy revealed that Lip2 contains a typical Ca(2+)-active site. This first report on the cloning of the Lip2 gene and its enzymatic characteristics may greatly facilitate its potential industrial application.
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Affiliation(s)
- Jiangke Yang
- Key Laboratory of Molecular Bio-Physics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, 430074, Wuhan, China.
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Contesini FJ, da Silva VCF, Maciel RF, de Lima RJ, Barros FFC, de Oliveira Carvalho P. Response surface analysis for the production of an enantioselective lipase from Aspergillus niger by solid-state fermentation. J Microbiol 2009; 47:563-71. [PMID: 19851729 DOI: 10.1007/s12275-008-0279-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Accepted: 06/21/2009] [Indexed: 10/20/2022]
Abstract
The lipase produced by the Aspergillus niger strain AC-54 has been widely studied due to its enantioselectivity for racemic mixtures. This study aimed to optimize the production of this enzyme using statistical methodology. Initially a Plackett-Burman (PB) design was used to evaluate the effects of the culture medium components and the culture conditions. Twelve factors were screened: water content, glucose, yeast extract, peptone, olive oil, temperature, NaH(2)P0(4), KH(2)P0(4), MgS0(4)-7H(2)0, CaCl(2), NaCI, and MnS0(4). The screening showed that the significant factors were water content, glucose, yeast extract, peptone, NaH(2)P0(4), and KH(2)P0(4), which were optimized using response surface methodology (RSM) and a mathematical model obtained to explain the behavioral process. The best lipase activity was attained using the following conditions: water content (20%), glucose (4.8%), yeast extract (4.0%), and NaH2P04 (4.0%). The predicted lipase activity was 33.03 U/ml and the experimental data confirmed the validity of the model. The enzymatic activity was expressed as micromoles of oleic acid released per minute of reaction (micromol/min).
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Affiliation(s)
- Fabiano Jares Contesini
- Laboratório de Bioquímica de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), São Paulo, Brazil.
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12
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Adham NZ, Ahmed EM. Extracellular lipase of Aspergillus niger NRRL3; production, partial purification and properties. Indian J Microbiol 2009; 49:77-83. [PMID: 23100754 PMCID: PMC3450051 DOI: 10.1007/s12088-009-0004-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2007] [Accepted: 02/20/2008] [Indexed: 10/21/2022] Open
Abstract
Four strains of Aspergillus niger were screened for lipase production. Each was cultivated on four different media differing in their contents of mineral components and sources of carbon and nitrogen. Aspergillus niger NRRL3 produced maximal activity (325U/ml) when grown in 3% peptone, 0.05% MgSO(4).7H(2)O, 0.05% KCl, 0.2% K(2)HPO(4) and 1% olive oil:glucose (0.5:0.5). A. niger NRRL3 lipase was partially purified by ammonium sulphate precipitation. The majority of lipase activity (48%) was located in fraction IV precipitated at 50-60% of saturation with a 18-fold enzyme purification. The optimal pH of the partial purified lipase preparation for the hydrolysis of emulsified olive oil was 7.2 and the optimum temperature was 60°C. At 70°C, the enzyme retained more than 90% of its activity. Enzyme activity was inhibited by Hg(2+) and K(+), whereas Ca(2+) and Mn(2+) greatly stimulated its activity. Additionally, the formed lipase was stored for one month without any loss in the activity.
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Affiliation(s)
- Nehad Z. Adham
- Chemistry of Natural and Microbial Products Department, National Research Center, Dokki, Cairo, Egypt
| | - E. M. Ahmed
- Chemistry of Natural and Microbial Products Department, National Research Center, Dokki, Cairo, Egypt
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13
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Wang X, Lu D, Jönsson LJ, Hong F. Preparation of a PET‐Hydrolyzing Lipase fromAspergillus oryzaeby the Addition of Bis(2‐hydroxyethyl) Terephthalate to the Culture Medium and Enzymatic Modification of PET Fabrics. Eng Life Sci 2008. [DOI: 10.1002/elsc.200700058] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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14
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Kudanga T, Mwenje E, Mandivenga F, Read JS. Esterases and putative lipases from tropical isolates ofAureobasidium pullulans. J Basic Microbiol 2007; 47:138-47. [PMID: 17440916 DOI: 10.1002/jobm.200610207] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Esterases and lipases have been studied in a number of fungi, though very little is known about esterases from Aureobasidium pullulans especially from the African tropics. In this study, forty-two Zimbabwean isolates were screened for lipase activity on tributyrin agar. Extracellular esterase activities of seven selected isolates were studied under varying conditions using para-nitrophenol acetate as substrate. Twenty isolates (48%) showed lipolytic activity; sixteen showed negative results for lipase activity while the rest showed weak activities. Esterase activities in broth cultures ranged from 0.011-0.223 mmol/microg protein/min while activities ranged from 1.5-12.8 U/ml under solid state fermentation. The esterases were optimally active at pH 7.6-8.0, showed a temperature optimum of 35 degrees C and retained more than 50% activity at temperatures up to 60 degrees C and at pH 4.0-7.0 after 150 min. Enzyme production was optimal after 5-6 days with diammonium hydrogen phosphate as nitrogen source. Isolates showed variations in preference for carbon source for esterase production. The A. pullulans esterases differed from most fungal esterases in that they are optimally active in alkaline conditions and are active over a broad pH range.
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Affiliation(s)
- Tukayi Kudanga
- Department of Applied Biology and Biochemistry, National University of Science and Technology, Ascot, Bulawayo, Zimbabwe.
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15
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. ISB, . GHR. Optimization of Process Parameters for the Production of Lipase in Submerged Fermentation by Yarrowia lipolytica NCIM 3589. ACTA ACUST UNITED AC 2007. [DOI: 10.3923/jm.2007.88.93] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Rodriguez J, Mateos J, Nungaray J, González V, Bhagnagar T, Roussos S, Cordova J, Baratti J. Improving lipase production by nutrient source modification using Rhizopus homothallicus cultured in solid state fermentation. Process Biochem 2006. [DOI: 10.1016/j.procbio.2006.05.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Saisubramanian N, Edwinoliver NG, Nandakumar N, Kamini NR, Puvanakrishnan R. Efficacy of lipase from Aspergillus niger as an additive in detergent formulations: a statistical approach. J Ind Microbiol Biotechnol 2006; 33:669-76. [PMID: 16491364 DOI: 10.1007/s10295-006-0100-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2005] [Accepted: 02/03/2006] [Indexed: 10/25/2022]
Abstract
The efficacy of lipase from Aspergillus niger MTCC 2594 as an additive in laundry detergent formulations was assessed using response surface methodology (RSM). A five-level four-factorial central composite design was chosen to explain the washing protocol with four critical factors, viz. detergent concentration, lipase concentration, buffer pH and washing temperature. The model suggested that all the factors chosen had a significant impact on oil removal and the optimal conditions for the removal of olive oil from cotton fabric were 1.0% detergent, 75 U of lipase, buffer pH of 9.5 and washing temperature of 25 degrees C. Under optimal conditions, the removal of olive oil from cotton fabric was 33 and 17.1% at 25 and 49 degrees C, respectively, in the presence of lipase over treatment with detergent alone. Hence, lipase from A. niger could be effectively used as an additive in detergent formulation for the removal of triglyceride soil both in cold and warm wash conditions.
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Affiliation(s)
- N Saisubramanian
- Department of Biotechnology, Central Leather Research Institute, 600 020, Adyar, Chennai, India,
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18
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Lin ES, Ko HC. Glucose stimulates production of the alkaline-thermostable lipase of the edible Basidiomycete Antrodia cinnamomea. Enzyme Microb Technol 2005. [DOI: 10.1016/j.enzmictec.2005.03.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Ghorbel S, Souissi N, Triki-Ellouz Y, Dufoss� L, Gu�rard F, Nasri M. Preparation and testing of Sardinella protein hydrolysates as nitrogen source for extracellular lipase production by Rhizopus oryzae. World J Microbiol Biotechnol 2005. [DOI: 10.1007/s11274-004-1556-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Prathumpai W, Flitter SJ, McIntyre M, Nielsen J. Lipase production by recombinant strains of Aspergillus niger expressing a lipase-encoding gene from Thermomyces lanuginosus. Appl Microbiol Biotechnol 2004; 65:714-9. [PMID: 15316684 DOI: 10.1007/s00253-004-1699-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2004] [Revised: 06/21/2004] [Accepted: 06/21/2004] [Indexed: 10/26/2022]
Abstract
Two recombinant strains of Aspergillus niger (NW 297-14 and NW297-24) producing a heterologous lipase from Thermomyces lanuginosus were constructed. The heterologous lipase was expressed using the TAKA amylase promoter from Aspergillus oryzae. The production kinetics of the two strains on different carbon sources in batch and carbon-limited chemostat cultivations were evaluated. In batch cultivations, the highest total product yield coefficient (Y(xp total)), given as the sum of extracellular and intracellular yields, was obtained during growth on glucose for the transformant strain NW297-24 (5.7+/-0.65 KU/g DW), whereas the highest total product yield coefficient was obtained during growth on maltose for the transformant strain NW297-14 (6.3+/-0.02 KU/g DW). Both transformants were evaluated in glucose-limited chemostat cultures. Strain NW297-14 was found to be the best producer and was thus employed for further analysis of the influence of carbon source in chemostat cultures. Here, the highest total specific lipase productivity (r(p total), the sum of extracellular and intracellular lipase productivity) was found to be 1.60+/-0.81 KU/g DW/h in maltose-limited chemostats at a dilution rate of 0.08 h(-1), compared with a total specific lipase productivity of 1.10+/-0.41 KU/g DW/h in glucose-limited chemostats. At the highest specific productivity obtained in this study, the heterologous enzyme accounted for about 1% of all cellular protein being produced by the cells, which shows that it is possible to obtain high productivities of heterologous fungal enzymes in A. niger. However, SDS-PAGE analysis showed that most of the produced lipase was bound to the cell wall.
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Affiliation(s)
- Wai Prathumpai
- BioCentrum-DTU, Center for Microbial Biotechnology, Technical University of Denmark, Building 223, 2800 Lyngby, Denmark
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van Heerden E, Litthauer D, Verger R. Biochemical characterisation and kinetic properties of a purified lipase from Aspergillus niger in bulk phase and monomolecular films. Enzyme Microb Technol 2002. [DOI: 10.1016/s0141-0229(02)00031-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Maia MM, Heasley A, Camargo de Morais MM, Melo EH, Morais MA, Ledingham WM, Lima Filho JL. Effect of culture conditions on lipase production by Fusarium solani in batch fermentation. BIORESOURCE TECHNOLOGY 2001; 76:23-27. [PMID: 11315806 DOI: 10.1016/s0960-8524(00)00079-1] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Lipase (Glycerol ester hydrolase EC 3.1.1.3.) from a Brazilian strain of Fusarium solani FSI has been investigated. The effect of different carbon sources and trace elements added to basal medium was observed with the aim of improving enzyme production. Lipase specific activity was highest (0.45 U mg(-1)) for sesame oil. When this medium was supplemented with trace elements using olive oil, corn oil and sesame oil the lipase specific activity increased to 0.86, 1.89 and 1.64 U mg(-1), respectively, after 96 h cultivation without any considerable biomass increase. The Km of this lipase using pNPP (p-nitrophenylpalmitate) as substrate, was 1.8 mM with a Vmax of 1.7 micromol min(-1) mg protein(-1). Lipase activity increased in the presence of increasing concentrations of hexane and toluene. In contrast, incubation of this enzyme with water-soluble solvents decreased its activity after 10% concentration (v/v) of the solvent. The lipase activity was stable below 35 degrees C but above this temperature activity losses were observed.
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Affiliation(s)
- M M Maia
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
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23
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Kamini N, Mala J, Puvanakrishnan R. Lipase production from Aspergillus niger by solid-state fermentation using gingelly oil cake. Process Biochem 1998. [DOI: 10.1016/s0032-9592(98)00005-3] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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