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Neog PR, Saini S, Konwar BK. Purification, and characterization of detergent-compatible serine protease from Bacillussafensis strain PRN1: A sustainable alternative to hazardous chemicals in detergent industry. Protein Expr Purif 2024; 219:106479. [PMID: 38574878 DOI: 10.1016/j.pep.2024.106479] [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: 02/07/2024] [Revised: 03/22/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Owing to vast therapeutic, commercial, and industrial applications of microbial proteases microorganisms from different sources are being explored. In this regard, the gut microbiota of Monopteruscuchia were isolated and examined for the production of protease. All the isolates were primarily and secondarily screened on skim milk and gelatin agar plates. The protease-positive isolates were characterized morphologically, biochemically, and molecularly. Out of the 20 isolated strains,6 belonging to five different genera viz.Bacillus,Priestia,Aeromonas,Staphylococcus, and Serratia demonstrated proteolytic activity. Bacillussafensis strain PRN1 demonstrated the highest protease production and, thus, the largest hydrolytic clear zones in both skim milk agar (15 ± 1 mm) and gelatin (16 ± 1 mm) plates. The optimized parameters (time, pH, temperature, carbon, nitrogen) for highest protease activity and microbial growth of B.safensis strain PRN1 includes 72 h (OD600 = 0.56,1303 U/mL), pH 8 (OD600 = 0.83, 403.29 U/mL), 40 °C (OD600 = 1.75, 1849.11 U/mL), fructose (OD600 = 1.22, 1502 U/mL), and gelatin (OD600 = 1.88, 1015.33 U/mL). The enzyme was purified to homogeneity using salt-precipitation and gel filtration chromatography. The sodium dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated that the purified enzyme was a monomer of a molecular weight of ∼33 kDa. The protease demonstrated optimal activity at pH 8 and 60 °C. It was strongly inhibited by phenylmethylsulfonyl fluoride (PMSF), demonstrating that it belongs to the serine-proteases family. The compatibility of the enzyme with surfactants and commercial detergents demonstrates its potential use in the detergent industry. Furthermore, the purified enzyme showed antibacterial and blood-stain removal properties.
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Affiliation(s)
- Panchi Rani Neog
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Tezpur, 784028, Assam, India
| | - Shubhangi Saini
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Tezpur, 784028, Assam, India
| | - Bolin Kumar Konwar
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Tezpur, 784028, Assam, India.
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Bhuimbar MV, Jalkute CB, Bhagwat PK, Dandge PB. Purification, characterization and application of collagenolytic protease from Bacillus subtilis strain MPK. J Biosci Bioeng 2024; 138:21-28. [PMID: 38637241 DOI: 10.1016/j.jbiosc.2024.03.003] [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: 08/24/2023] [Revised: 02/10/2024] [Accepted: 03/18/2024] [Indexed: 04/20/2024]
Abstract
A new extracellular protease from Bacillus subtilis strain MPK with collagenolytic activity was isolated and purified. Fish skin which otherwise would be treated as waste is used as substrate for the production of protease. Using various techniques such as ammonium sulphate precipitation and ion exchange chromatography, protease was purified and characterized subsequently. Protease of approximately 61 kDa molecular weight was purified by 135.7-fold with 18.42% enzyme recovery. The protease showed effective properties like pH and temperature stability over a broad range with optimum pH 7.5 and temperature 60 °C. Km and Vmax were found to be 1.92 mg ml-1 and 1.02 × 10-4 mol L-1 min-1, respectively. The protease exhibited stability in various ions, surfactants, inhibitors and organic solvents. Subsequently, the protease was successfully utilized for collagen hydrolysis to generate collagen peptides; thus, the produced protease would be a potential candidate for multifaceted applications in food and pharmaceutical industries due to its significant characteristics and collagenolytic properties.
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Affiliation(s)
- Madhuri Vijay Bhuimbar
- PG Department of Microbiology & Research Center, Shri Shivaji Mahavidyalaya, Barshi 413411, MS, India
| | - Chidambar Balbhim Jalkute
- PG Department of Microbiology & Research Center, Shri Shivaji Mahavidyalaya, Barshi 413411, MS, India
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Gupta M, Choudhury B, Navani NK. Production and characterization of an organic solvent activated protease from haloalkaliphilic bacterium Halobiforma sp. strain BNMIITR. Heliyon 2024; 10:e25084. [PMID: 38314259 PMCID: PMC10837622 DOI: 10.1016/j.heliyon.2024.e25084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 02/06/2024] Open
Abstract
An unusual haloalkaliphilic bacterium known as Halobiforma sp. strain BNMIITR, which was noticed to produce an extracellular alkaline protease, was found in a soil sample from Northern India's Sambhar Lake. On the generation of protease, the effects of dietary elements including nitrogen and carbon sources, amino acids, and growth conditions like temperature and pH were investigated. When low-cost agricultural by-products were employed as nitrogen sources, the manufacturing of enzymes was significantly boosted. In the present study, protease production was enhanced by 2.94 fold and 2.17 fold. By solvent precipitation and Hydrophobic interaction chromatography (HIC) on Phenyl Sepharose 6 Fast Flow matrix, the enzyme was purified 31.67 fold. It was determined that the apparent molecular mass was 21 kDa. The pH range where the enzyme was most stable was 6.0-12.0, with a temperature of 50 °C as optimum. When there was alkaline earth metals and heavy metals, protease was discovered to be active. It was evident that the enzyme was a serine type of protease because it was active in the presence of a variety of surfactants, oxidizing and reducing chemicals, and phenylmethylsulfonyl fluoride (PMSF) completely inhibited activity. Enzyme exhibited a wide range of substrate specificity. Amazingly, enzyme remained stable both in polar and nonpolar solvents. The most interesting aspect of this enzyme is enhanced activity in polar solvents like dimethylformamide (DMF) and dimethyl sulfoxide (DMSO). It was discovered that the protease was stable and compatible with a number of widely available detergents.
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Affiliation(s)
- Meenu Gupta
- Botany Department, J. D. Women's College Patna, Bihar, 800023, India
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Bijan Choudhury
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
| | - Naveen Kumar Navani
- Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
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Solanki JB, Lele N, Das AK, Maurya P, Kumari R. Assessment of mangrove cover dynamics and its health status in the Gulf of Khambhat, Western India, using high-resolution multi-temporal satellite data and Google Earth Engine. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:896. [PMID: 36251103 DOI: 10.1007/s10661-022-10575-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Abstract
Anthropogenic activity is a major driving factor of greenhouse gas emission, leading to climate change worldwide. So, the best natural approach to lowering the carbon from the atmosphere is mangroves which have more potential to sequestrate carbon. But mangroves are under threat due to land use land cover change. This research has been carried out on the mangroves of Gulf of Khambhat, Gujarat, India, where anthropic activity is affecting the mangrove forest cover with spatiotemporal heterogeneity. In the present study, multi-temporal high-resolution satellite data AVNIR-2 (Advanced Visible and Near Infrared Radiometer type-2) and LISS-4 (Linear Imaging Self-Scanning Sensors-4) were used for the demarcation of various land use/land cover class (LULC), and change analysis and assessment of mangroves health for the years 2009, 2014, and 2019. The impact of saltpan/aquaculture on mangroves growth and its health status has been calculated by various MODIS (Moderate Resolution Imaging Spectroradiometer) satellite data products such as gross primary productivity (GPP), enhanced vegetation index (EVI), and leaf area index (LAI) in Google Earth Engine (GEE), and field-based method was also considered. This study suggests that there is a marginal increase (17.11 km2) in mangrove cover during the assessment period 2009-2019; on other side, 65.42 km2 was degraded also. However, increase in saltpan/aquaculture is imposing an adverse effect on mangroves' basal area, plant density, and productivity. Change analysis also suggests a reduction in healthy mangrove area (from 25.20 to 2.84 km2), which will have an impact on ecosystem services.
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Affiliation(s)
- Jigarkumar B Solanki
- School of Environment and Sustainable Development, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Nikhil Lele
- Space Applications Centre, Ahmedabad, Gujarat, India
| | | | - Parul Maurya
- School of Environment and Sustainable Development, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Rina Kumari
- School of Environment and Sustainable Development, Central University of Gujarat, Gandhinagar, Gujarat, India.
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Farooq S, Nazir R, Ganai SA, Ganai BA. Isolation and characterization of a new cold-active protease from psychrotrophic bacteria of Western Himalayan glacial soil. Sci Rep 2021; 11:12768. [PMID: 34140593 PMCID: PMC8211794 DOI: 10.1038/s41598-021-92197-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 05/28/2021] [Indexed: 02/05/2023] Open
Abstract
As an approach to the exploration of cold-active enzymes, in this study, we isolated a cold-active protease produced by psychrotrophic bacteria from glacial soils of Thajwas Glacier, Himalayas. The isolated strain BO1, identified as Bacillus pumilus, grew well within a temperature range of 4-30 °C. After its qualitative and quantitative screening, the cold-active protease (Apr-BO1) was purified. The Apr-BO1 had a molecular mass of 38 kDa and showed maximum (37.02 U/mg) specific activity at 20 °C, with casein as substrate. It was stable and active between the temperature range of 5-35 °C and pH 6.0-12.0, with an optimum temperature of 20 °C at pH 9.0. The Apr-BO1 had low Km value of 1.0 mg/ml and Vmax 10.0 µmol/ml/min. Moreover, it displayed better tolerance to organic solvents, surfactants, metal ions and reducing agents than most alkaline proteases. The results exhibited that it effectively removed the stains even in a cold wash and could be considered a decent detergent additive. Furthermore, through protein modelling, the structure of this protease was generated from template, subtilisin E of Bacillus subtilis (PDB ID: 3WHI), and different methods checked its quality. For the first time, this study reported the protein sequence for psychrotrophic Apr-BO1 and brought forth its novelty among other cold-active proteases.
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Affiliation(s)
- Saleem Farooq
- grid.412997.00000 0001 2294 5433Department of Environmental Science, University of Kashmir, Srinagar, Jammu and Kashmir 190006 India ,grid.412997.00000 0001 2294 5433Microbiology Research Laboratory, Centre of Research for Development (CORD), University of Kashmir, Hazratbal, Srinagar, India Jammu and Kashmir 190006
| | - Ruqeya Nazir
- grid.412997.00000 0001 2294 5433Microbiology Research Laboratory, Centre of Research for Development (CORD), University of Kashmir, Hazratbal, Srinagar, India Jammu and Kashmir 190006
| | - Shabir Ahmad Ganai
- grid.444725.40000 0004 0500 6225Division of Basic Sciences and Humanities, FoA, SKUAST-Kashmir, Srinagar, Jammu and Kashmir 193201 India
| | - Bashir Ahmad Ganai
- grid.412997.00000 0001 2294 5433Microbiology Research Laboratory, Centre of Research for Development (CORD), University of Kashmir, Hazratbal, Srinagar, India Jammu and Kashmir 190006
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Raj TS, Athimoolam S, Vijayaraghavan P. Biosynthesis and Characterization of a Novel Fibrinolytic Alkaline Serine Protease from Newly Isolated Bacillus flexus BF12 for Biomedical Applications. Curr Pharm Biotechnol 2021; 22:706-717. [PMID: 33208066 DOI: 10.2174/1389201021666201117094714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/20/2020] [Accepted: 10/19/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cardiovascular Diseases (CVDs) such as stroke, high blood pressure, peripheral vascular disease, ischemic heart disease and acute myocardial infarction are some of the leading causes of death. To treat CVDs, commercially available thrombolytic agents are widely used. However, these thrombolytic agents have various side effects. Alternatively, fibrinolytic enzymes from bacterial sources are highly safe and have direct blood clot lytic activity. METHODS A fibrinolytic enzyme producing bacterial strain, Bacillus flexus BF12, was isolated from a solar saltpan in Kanyakumari District, Tamilnadu, India. Enzyme production was improved by optimizing physical factors and nutritional factors. RESULTS A novel fibrinolytic enzyme was isolated from a strain of the studied B. flexus BF12. Enzyme production was enhanced significantly by optimizing process parameters. The critical physical factors (pH and salinity) and influencing nutritional factors (carbon, nitrogen and ions) were optimized by one variable at a time approach, followed by the statistical method. The strain BF12 was highly active at alkaline pH (>7.0) and between 4 and 6% NaCl concentration. The nutrients such as fructose (carbon source), beef extract (nitrogen source) and CaCl2 significantly influenced enzyme production. Central composite design and response surface methodology improved 3.2-fold enzyme yield than unoptimized culture medium. Fibrinolytic protease was purified by ammonium sulphate precipitation, dialysis and gel filtration chromatography. DISCUSSION The molecular weight of an enzyme was found to be 23 kDa. It was active at a broad temperature (40-60 °C) and pH (7.0-9.0) ranges. Enzyme activity was enhanced by Ca2+ and Co2+ ions. The purified protease retained 100% enzyme activity in the presence of ethanol and acetone. Acetonitrile, butanol, DMSO, methanol and chloroform showed enzyme activity of 63%, 92.5%, 94.7%, 92.3% and 90.4%, respectively. The purified enzyme degraded 100% of human blood clot. CONCLUSION The Bacillus flexus BF12 fibrinolytic enzyme shows promising potentials in nutraceutical and food fortification applications. The application of fibrinolytic enzymes could prevent CVDs.
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Affiliation(s)
- T Sterlin Raj
- Department of Physics, University College of Engineering, Anna University Constituent College, Nagercoil, Konnam 629 004, Tamilnadu, India
| | - S Athimoolam
- Department of Physics, University College of Engineering, Anna University Constituent College, Nagercoil, Konnam 629 004, Tamilnadu, India
| | - P Vijayaraghavan
- Bioprocess Engineering Division, Smykon Biotech Pvt. LtD, Kanyakumari District, Tamilnadu 629 001, India
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Ahmad MN, Shuhaimen MS, Normaya E, Omar MN, Iqbal A, Ku Bulat KH. The applicability of using a protease extracted from cashew fruits (Anacardium occidentale), as possible meat tenderizer: An experimental design approach. J Texture Stud 2020; 51:810-829. [PMID: 32401337 DOI: 10.1111/jtxs.12529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 11/28/2022]
Abstract
Meat tenderness is one of the most important organoleptic properties in determining consumer acceptance in meat product marketability. Therefore, an effective meat tenderization method is sought after by exploring plant-derived proteolytic enzymes as meat tenderizer. In this study, a novel protease from Cashew was identified as a new alternative halal meat tenderizer. The extraction of cashew protease was optimized using response surface methodology (R2 = 0.9803) by varying pH, CaCl2 concentration, mixing time, and mass. pH 6.34, 7.92 mM CaCl2 concentration, 5.51 min mixing time, and 19.24 g sample mass were the optimal extraction conditions. There was no significant difference (n = 3; p < 0.05) between the calculated (6.302 units/ml) and experimental (6.493 ± 0.229 units/ml) protease activity. The ascending order of the effects was pH < mixing time < CaCl2 < sample mass. In meat tenderizing application, the meat samples treated with 9% (v/w) crude protease extract obtained the lowest shear force (1.38 ± 0.25 N) to cause deformation on the meat. An electrophoretic analysis showed that protein bands above ~49.8 kDa were completely degraded into protein bands below ~22.4 kDa. Scanning electron microscopy shows the disruption of the muscle fibers after being treated by the Cashew protease. The results of this study show the Cashew (Anacardium occidentale) crude extract can be used as an alternative of the animal and microbial protease as meat tenderizer and subsequently overcome the shortcoming of the halal industrial protease.
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Affiliation(s)
- Mohammad Norazmi Ahmad
- Experimental and Theoretical Research Laboratory, Department of Chemistry, Kulliyah of Science, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Muhammad Shahrain Shuhaimen
- Experimental and Theoretical Research Laboratory, Department of Chemistry, Kulliyah of Science, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Erna Normaya
- Experimental and Theoretical Research Laboratory, Department of Chemistry, Kulliyah of Science, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Muhammad Nor Omar
- Department of Biotechnology, Kulliyah of Science, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Anwar Iqbal
- School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Ku Halim Ku Bulat
- Department of Chemistry, Faculty of Science, University Malaysia Terengganu, Terengganu, Malaysia
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Agricultural waste materials enhance protease production by Bacillus subtilis B22 in submerged fermentation under blue light-emitting diodes. Bioprocess Biosyst Eng 2020; 43:821-830. [DOI: 10.1007/s00449-019-02277-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/25/2019] [Indexed: 12/18/2022]
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Ibrahim ASS, Elbadawi YB, El-Tayeb MA, Al-Maary KS, Maany DAF, Ibrahim SSS, Elagib AA. Alkaline serine protease from the new halotolerant alkaliphilic Salipaludibacillus agaradhaerens strain AK-R: purification and properties. 3 Biotech 2019; 9:391. [PMID: 31656729 DOI: 10.1007/s13205-019-1928-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 09/28/2019] [Indexed: 11/28/2022] Open
Abstract
Herein, we report the purification and characterization of an alkaline protease from the alkaliphilic Salipaludibacillus agaradhaerens (formerly Bacillus agaradhaerens) strain AK-R, which was previously isolated from Egyptian soda lakes. The purification procedures resulted in enzyme purification up to 13.3-fold, with a recovery yield of 16.3% and a specific activity of 3488 U/mg protein. AK-R protease was a monomeric protein with an estimated molecular weight of 33.0 kDa. The optimum pH and temperature for AK-R protease were pH 10 and 60 °C, respectively. The enzyme thermostability was significantly enhanced in the presence of CaCl2 by approximately 1.3-fold. Moreover, under optimal conditions, the K m and V max values of the enzyme were 2.63 mg/ml and 4166.7 U/mg, respectively. PMSF caused complete inhibition of the enzyme activity, suggesting that AK-R belongs to the serine protease family. In addition, the enzyme was completely inhibited by EDTA, revealing the requirement of metal ions for AK-R protease activity; hence, it can be classified as a metalloprotease. AK-R protease is a mostly thiol-independent enzyme, since thiol reductants such as β-mercaptoethanol and dithiothreitol had no effect on the enzyme activity. AK-R protease exhibited high stability in several organic solvents, including butanol, amyl alcohol, dimethyl ether, toluene, diethyl ether and methanol. Moreover, AK-R protease showed significant stability to a variety of surfactants and commercial detergents. The features and properties of AK-R alkaline protease are favourable and suggest its potential applications in various industries, particularly in the laundry detergent industry.
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Affiliation(s)
- Abdelnasser S S Ibrahim
- 1Department of Chemistry of Natural and Microbial Products, Pharmaceutical and Drug Industries Research Division, National Research Centre, El-Buhouth St, Dokki, Cairo, 12311 Egypt
- 2Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Yahya B Elbadawi
- 2Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Mohamed A El-Tayeb
- 2Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Khalid S Al-Maary
- 2Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Dina Abdel Fattah Maany
- 1Department of Chemistry of Natural and Microbial Products, Pharmaceutical and Drug Industries Research Division, National Research Centre, El-Buhouth St, Dokki, Cairo, 12311 Egypt
| | - Shebl Salah S Ibrahim
- 3Department of Biochemistry, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Atif A Elagib
- 4Tropical Medicine Research Institute, PO Box 1304, Khartoum, Sudan
- 5National Centre for Research, Khartoum, Sudan
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Birolli WG, Lima RN, Porto ALM. Applications of Marine-Derived Microorganisms and Their Enzymes in Biocatalysis and Biotransformation, the Underexplored Potentials. Front Microbiol 2019; 10:1453. [PMID: 31481935 PMCID: PMC6710449 DOI: 10.3389/fmicb.2019.01453] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/11/2019] [Indexed: 12/19/2022] Open
Abstract
Biodiversity has been explored in the search for novel enzymes, including forests, savannas, tundras, deserts, and finally the sea. Marine microorganisms and their enzymes are capable of being active in high-salt concentration, large range of temperature, and high incidence of light and pressure, constituting an important source of unique biocatalysts. This review presents studies employing whole-cell processes of marine bacteria and fungi, aiming for new catalysts for different reactions in organic synthesis, such as reduction, oxidation, hydroxylation, hydrolysis, elimination, and conjugation. Genomics and protein engineering studies were also approached, and reactions employing isolated enzymes from different classes (oxidoreductases, hydrolases, lyases, and ligases) were described and summarized. Future biotechnological studies and process development should focus on molecular biology for the obtention of enzymes with interesting, fascinating and enhanced properties, starting from the exploration of microorganisms from the marine environment. This review approaches the literature about the use of marine-derived bacteria, fungi, and their enzymes for biocatalytic reactions of organic compounds, promoting a discussion about the possibilities of these microorganisms in the synthesis of different substances.
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Affiliation(s)
- Willian G Birolli
- Laboratory of Organic Chemistry and Biocatalysis, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil.,Center of Exact Sciences and Technology, Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - Rafaely N Lima
- Laboratory of Organic Chemistry and Biocatalysis, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil.,Center of Exact Sciences and Technology, Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - André L M Porto
- Laboratory of Organic Chemistry and Biocatalysis, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, Brazil
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Suberu Y, Akande I, Samuel T, Lawal A, Olaniran A. Cloning, expression, purification and characterisation of serine alkaline protease from Bacillus subtilis RD7. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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12
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Nazari L, Mehrabi M. Purification and characterization of an extracellular thermotolerant alkaliphilic serine protease secreted from newly isolated Bacillus sp. DEM07 from a hot spring in Dehloran, Iran. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Hakim A, Bhuiyan FR, Iqbal A, Emon TH, Ahmed J, Azad AK. Production and partial characterization of dehairing alkaline protease from Bacillus subtilis AKAL7 and Exiguobacterium indicum AKAL11 by using organic municipal solid wastes. Heliyon 2018; 4:e00646. [PMID: 30009270 PMCID: PMC6042311 DOI: 10.1016/j.heliyon.2018.e00646] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/02/2018] [Accepted: 06/01/2018] [Indexed: 11/19/2022] Open
Abstract
Alkaline proteases have applications in numerous industries. In this study, we have isolated and screened proteolytic bacteria from poultry wastes mixed soil and identified two bacterial isolates as Bacillus subtilis AKAL7 and Exiguobacterium indicum AKAL11 based on 16S rDNA sequencing. Maximum level of protease production was achieved after 24 h of fermentation in a basal medium. The optimal temperature, initial pH of the media and agitation for alkaline protease production by these two isolates were 30 °C, pH 9.0 and 120 rpm, respectively. The both bacterial isolates produced maximum level of protease with 3.0% organic municipal solid wastes (OMSW) as the sole source of carbon and nitrogen under previously optimized fermentation conditions. In comparison with the shake flask, protease production increased about 2.5-fold in the bioreactor with reduction in fermentation period. The partial purification of protease resulted in a final 45.67 and 34.86-fold purified protease with a specific activity of 8335.34 and 9918.91 U/mg protein and a typical yield of 9.75 and 9.41% from B. subtilis and E. indicum, respectively. The optimum temperature and pH of the partially purified protease from the both sources was 40 °C and pH 9.0, respectively. Protease from the both isolates was stable at pH 7.0-12.0 and at temperatures up to 50 °C. The effects of protease inhibitors indicated that the protease from B. subtilis might be serine and cysteine type and from E. indicum might be cysteine type. Mg2+, K+ and Ca2+ stimulated but Zn2+, Hg2+, Co2+ and Fe3+ strongly inhibited the protease activity. The partially purified protease from B. subtilis substantially dehaired cow skin and decomposed gelatinous compound from X-ray film. Our study revealed that OMSW can be used as raw material for production of bacterial extracellular protease and alkaline protease from B. subtilis might be potential for industrial and biotechnological applications.
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Affiliation(s)
| | | | | | | | | | - Abul Kalam Azad
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
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14
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Purification and Characterization of Microbial Protease Produced Extracellularly from Bacillus subtilis FBL-1. BIOTECHNOL BIOPROC E 2018. [DOI: 10.1007/s12257-017-0495-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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15
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dos Santos Aguilar JG, Sato HH. Microbial proteases: Production and application in obtaining protein hydrolysates. Food Res Int 2018; 103:253-262. [DOI: 10.1016/j.foodres.2017.10.044] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 10/23/2017] [Accepted: 10/26/2017] [Indexed: 01/26/2023]
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Maruthiah T, Palavesam A. Characterization of haloalkalophilic organic solvent tolerant protease for chitin extraction from shrimp shell waste. Int J Biol Macromol 2017; 97:552-560. [PMID: 28065749 DOI: 10.1016/j.ijbiomac.2017.01.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 12/21/2016] [Accepted: 01/04/2017] [Indexed: 10/20/2022]
Abstract
Halophilic organic solvent tolerant protease (HOSP) producing Paracoccus saliphilus APCMST-CS5 was isolated from the marine sediment samples and identified through 16S rRNA sequence analysis. P. saliphilus APCMST-CS5 registered maximum HOSP production of 1,321.70U/ml in the medium contained the most significant parameters such as shrimp shell powder (SSP), CaCl2, NaCl, and sardinella powder (SP), obtained through Placket-Burman and Response Surface Methods. HOSP was further purified to 22.68 fold purity with 29.71 U/mg specific activity and its molecular weight was 39kDa. The HOSP was stable at 60°C, 9.0 pH, 3.0M NaCl concentration and it also showed maximum activity at other tested parameters. Interestingly the purified HOSP showed better antibiofilm ability against tested pathogens. Also, the HOSP effectively deproteinized (85.64%) shrimp shell chitin which in turn maximum and exhibited higher antioxidant activity. The commercial and experimental shrimp shell chitin showed similar peak pattern in FTIR and 13C CP/MAS NMR spectral analysis.
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Affiliation(s)
- Thirumalai Maruthiah
- Centre for Marine Science and Technology, Manonmaniam Sundaranar University, Rajakkamangalam-629 502, Kanyakumari District, Tamilnadu, India
| | - Arunachalam Palavesam
- Department of Animal Science, Manonmaniam Sundaranar University, Tirunelveli 627 012, Tamilnadu, India.
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17
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Maruthiah T, Somanath B, Jasmin JV, Immanuel G, Palavesam A. Production, purification and characterization of halophilic organic solvent tolerant protease from marine crustacean shell wastes and its efficacy on deproteinization. 3 Biotech 2016; 6:157. [PMID: 28330229 PMCID: PMC4961627 DOI: 10.1007/s13205-016-0474-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/19/2016] [Indexed: 11/24/2022] Open
Abstract
The quantum of marine fish wastes produced by fish processing industries has necessitated to search new methods for its disposal. Hence, this study is focused on production and purification of halophilic organic solvent tolerant protease (HOSP) from marine Alcaligenes faecalis APCMST-MKW6 using marine shell wastes as substrate. The candidate bacterium was isolated from the marine sediment of Manakudi coast and identified as A. faecalis APCMST-MKW6. The purified protease showed 16.39-fold purity, 70.34 U/mg specific activity with 21.67 % yield. The molecular weight of the purified alkaline protease was 49 kDa. This purified protease registered maximum activity at pH 9 and it was stable between pH 8–9 after 1.30 h of incubation. The optimum temperature registered was 60 °C and it was stable between 50 and 60 °C even after 1.30 h of incubation. This enzyme also showed maximum activity at 20 % NaCl concentration. Further, manganese chloride, magnesium chloride, calcium chloride and barium chloride influenced this enzyme activity remarkably and it was also found to be enhanced by many of the tested surfactants and solvents. The candidate bacterium effectively deproteinized the shrimp shell waste compared to the other tested crustaceans shell wastes and also attained maximum antioxidant activity.
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Affiliation(s)
- Thirumalai Maruthiah
- Centre for Marine Science and Technology, Manonmaniam Sundaranar University, Rajakkamangalam, Kanyakumari, 629 502, Tamilnadu, India
| | - Beena Somanath
- Department of Zoology, Rani Anna Government College for Women, Manonmaniam Sundaranar University, Tirunelveli, 627 012, Tamilnadu, India
| | | | - Grasian Immanuel
- Centre for Marine Science and Technology, Manonmaniam Sundaranar University, Rajakkamangalam, Kanyakumari, 629 502, Tamilnadu, India
| | - Arunachalam Palavesam
- Department of Animal Science, Manonmaniam Sundaranar University, Tirunelveli, 627 012, Tamilnadu, India.
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18
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Catalytic Role of Thermostable Metalloproteases from Bacillus subtilis KT004404 as Dehairing and Destaining Agent. Appl Biochem Biotechnol 2016; 181:434-450. [DOI: 10.1007/s12010-016-2222-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 08/26/2016] [Indexed: 11/27/2022]
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Production, purification and characterization of a thermotolerant alkaline serine protease from a novel species Bacillus caseinilyticus. 3 Biotech 2016; 6:53. [PMID: 28330122 PMCID: PMC4752951 DOI: 10.1007/s13205-016-0377-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 10/03/2015] [Indexed: 01/26/2023] Open
Abstract
Alkaline proteases are important enzymes in many industrial applications, especially as additives in laundry detergent industry. Though there
are a number of Bacillus species which are reported to be producing proteases, the efficiency of a protease produced by a novel strain has to be studied in comparison to the others. Hence, in this study, an alkaline serine protease produced by a novel species Bacilluscaseinilyticus was purified and characterized for its possible usage in detergent industry. Ammonium sulphate, dialysis and DEAE column chromatographic methods were used for purification of the isolated alkaline protease. The molecular weight of the protease was determined by SDS-PAGE and it was found to be 66 kDa. Peptide mass fingerprinting (PMF) was carried out using MALDI-TOF-TOF mass spectrometry and the peptides were found to be similar to that of subtilisin protease. Specific activity of purified protein was found to be 89.2 U/mg. Optimum pH and temperature for enzyme activity were at pH 8 and 60 °C, respectively, showing stability with 10 mM CaCl2. Phenyl methyl sulphonyl fluoride (PMSF) at both 5 and 10 mM concentrations completely inhibited the enzyme activity suggesting its serine nature. EDTA, metal ions Mg2+ and Ca2+ increased the enzyme activity. The one factor at a time optimisation of the protease production was carried to identify the important factors that affect its production. After optimisation, the protease was produced at lab scale, purified and characterised. This alkali, thermotolerant serine protease was found to be significantly stable in the presence of various surfactants and H2O2. Also, it was successfully able to remove blood stain when used as an additive along with commercial detergent suggesting its potential application in the laundry detergent industry.
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20
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de Castro RJS, Soares MH, Albernaz JRM, Sato HH. Biochemical characterization of solvent, salt, surfactant and oxidizing agent tolerant proteases from Aspergillus niger produced in different agroindustrial wastes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2015.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Maruthiah T, Somanath B, Immanuel G, Palavesam A. Deproteinization potential and antioxidant property of haloalkalophilic organic solvent tolerant protease from marine Bacillus sp. APCMST-RS3 using marine shell wastes. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2015; 8:124-132. [PMID: 28352581 PMCID: PMC4980707 DOI: 10.1016/j.btre.2015.10.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/30/2015] [Accepted: 10/30/2015] [Indexed: 11/22/2022]
Abstract
The current increase in the vast amount of marine crustacean shell waste produced by the fish processing industries has led to the need to find new methods for its disposal. Hence, the present study was carried out via marine shell wastes as substrate for protease production. The maximum production (4000.65 U/ml) from Bacillus sp. APCMST-RS3 was noticed in 3:1% shrimp and oyster shell powder (SOSP) as substrate. Purified protease showed 53.22% and 22.66% enzyme yield; 3.48 and 8.49 fold purity with 40 kDa molecular weight; whereas, its Km and Vmax values were 0.6666 g/l, 1111.11 U/ml. This enzyme showed optimum activity at pH 9 and 60 °C temperature. Also, it retained maximum protease activity in the presence of NaCl (2.5 M), surfactants (Tween 20, 40, 60, 80 and SDS) and metal ions (MnCl2, CaCl2, HgCl2 and BaCl2) and solvents. The candidate bacterium effectively deproteinized (84.35%) shrimp shell and its antioxidant potentials.
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Affiliation(s)
- Thirumalai Maruthiah
- Centre for Marine Science and Technology, Manonmaniam Sundaranar University, Rajakkamangalam, 629 502 Kanyakumari District, Tamil nadu, India
| | - Beena Somanath
- Department of Zoology, Rani Anna Government College for Women, Manonmaniam Sundaranar University, Tirunelveli, 627 012 Tamil nadu, India
| | - Grasian Immanuel
- Centre for Marine Science and Technology, Manonmaniam Sundaranar University, Rajakkamangalam, 629 502 Kanyakumari District, Tamil nadu, India
| | - Arunachalam Palavesam
- Department of Animal Science, Manonmaniam Sundaranar University, Tirunelveli, 627 012 Tamil nadu, India
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22
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Maruthiah T, Immanuel G, Palavesam A. Purification and Characterization of Halophilic Organic Solvent Tolerant Protease from Marine Bacillus sp. APCMST-RS7 and Its Antioxidant Potentials. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40011-015-0603-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Detergent-, solvent- and salt-compatible thermoactive alkaline serine protease from halotolerant alkaliphilic Bacillus sp. NPST-AK15: purification and characterization. Extremophiles 2015; 19:961-71. [PMID: 26159877 DOI: 10.1007/s00792-015-0771-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
Abstract
Alkaline protease produced by the halotolerant alkaliphilic Bacillus sp. strain NPST-AK15 was purified to homogeneity by the combination of ammonium sulfate precipitation, anion-exchange and gel permeation chromatography. The purified enzyme was a monomeric protein with an estimated molecular weight of 32 kDa. NPST-AK15 protease was highly active and stable over a wide pH range, with a maximal activity at pH 10.5. The enzyme showed optimum activity at 60 °C and was stable at 30-50 °C for at least 1 h. Thermal stability of the purified protease was substantially improved by CaCl2 (1.1- to 6.6-fold). The K m, V max and k cat values for the enzyme were 2.5 mg ml(-1), 42.5 µM min(-1) mg(-1), and 392.46 × 10(3) min(-1), respectively. NPST-AK15 protease activity was strongly inhibited by PMSF, suggesting that the enzyme is a serine protease. The enzyme was highly stable in NaCl up to 20 % (w/v). Moreover, the purified enzyme was stable in several organic solvents such as diethyl ether, benzene, toluene, and chloroform. In addition, it showed high stability and compatibility with a wide range of surfactants and commercial detergents and was slightly activated by hydrogen peroxide. These features of NPST-AK15 protease make this enzyme a promising candidate for application in the laundry and pharmaceutical industries.
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24
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Ibrahim AS, Al-Salamah AA, Elbadawi YB, El-Tayeb MA, Ibrahim SSS. Production of extracellular alkaline protease by new halotolerant alkaliphilic Bacillus sp. NPST-AK15 isolated from hyper saline soda lakes. ELECTRON J BIOTECHN 2015. [DOI: 10.1016/j.ejbt.2015.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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25
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Purification, biochemical characterization and structural modeling of a potential htrA-like serine protease from Bacillus subtilis DR8806. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.02.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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26
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Sathishkumar R, Ananthan G, Arun J. Production, purification and characterization of alkaline protease by ascidian associated Bacillus subtilis GA CAS8 using agricultural wastes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2014.12.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Montriwong A, Rodtong S, Yongsawatdigul J. Detergent-Stable Salt-Activated Proteinases from Virgibacillus halodenitrificans SK1-3-7 Isolated from Fish Sauce Fermentation. Appl Biochem Biotechnol 2015; 176:505-17. [PMID: 25820449 DOI: 10.1007/s12010-015-1591-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 03/17/2015] [Indexed: 10/23/2022]
Abstract
The NaCl-activated and detergent-stable proteinases from Virgibacillus halodenitrificans SK1-3-7 isolated from fish sauce fermentation were purified and characterized. The enzymes with molecular masses of 20 and 36 kDa showed caseinolytic activity on a zymogram. Optimum azocaseinolytic activity was at 60 °C and pH 9. The proteolytic activity increased in the presence of 10 mM CaCl2 and 0.5 M NaCl and showed high stability at 0-2 M NaCl. The enzymes were stable at pH 4-10 and 10-50 °C. The enzymes preferably hydrolyzed Suc-Ala-Ala-Pro-Phe-pNA and were completely inhibited by phenylmethanesulfonyl fluoride (PMSF), showing subtilisin-like characteristics. Activity and stability remained high in the presence of H2O2 and various surfactants. The enzymes exhibited high stability (>95%) in various organic solvents (DMSO, butanol, ethanol, 2-propanol, and acetonitrile) at concentration of 50%. The V. halodenitrificans SK1-3-7 proteinases showed potential as a biocatalyst in aqueous-organic solvent systems and as an additive in laundry detergent.
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Affiliation(s)
- Aungkawipa Montriwong
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
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28
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Sari E, Loğoğlu E, Öktemer A. Purification and characterization of organic solvent stable serine alkaline protease from newly isolatedBacillus circulansM34. Biomed Chromatogr 2015; 29:1356-63. [DOI: 10.1002/bmc.3431] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/26/2014] [Accepted: 12/26/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Esma Sari
- Ankara University; Faculty of Science Department of Chemistry; Turkey
| | - Elif Loğoğlu
- Gazi University; Faculty of Science Department of Chemistry; Turkey
| | - Atilla Öktemer
- Ankara University; Faculty of Science Department of Chemistry; Turkey
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29
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In Vitro Evaluation of Probiotic Properties of Lactic Acid Bacteria from the Gut of Labeo rohita and Catla catla. Probiotics Antimicrob Proteins 2015; 7:126-36. [DOI: 10.1007/s12602-015-9184-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Badoei-Dalfard A, Karami Z, Ravan H. Purification and characterization of a thermo- and organic solvent-tolerant alkaline protease from Bacillus sp. JER02. Prep Biochem Biotechnol 2014; 45:128-43. [PMID: 24845261 DOI: 10.1080/10826068.2014.907176] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Bacillus sp. JER02 is a bacterial strain that can be grown in a medium containing organic solvents and produce a protease enzyme. JER02 protease was purified with a yield of 31.9% of total protein and 328.83-fold purification. Km and Vmax of this protease were established as 0.826 µM and 7.18 µmol/min, respectively. JER02 protease stability was stimulated about 80% by cyclohexane. It exhibited optimum temperature activity at 70°C. Furthermore, this enzyme was active in a wide range of pH (4-12) and showed maximum activity at pH 9.0. The nonionic detergents Tween-20 and Triton X-100 improved the protease activity by 30 and 20%, respectively. In addition, this enzyme was shown to be very stable in the presence of strong anionic surfactants and oxidizing agents, since it retained 77%, 93%, and 98% of its initial activity, after 1 hr of incubation at room temperature with sodium dodecyl sulfate (SDS), sodium perborate (1%, v/v) and H2O2 (1%, v/v), respectively. Overall, the unique properties of the Bacillus sp. JER02 protease suggested that this thermo- and detergent-stable, solvent-tolerant protease has great potential for industrial applications.
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Affiliation(s)
- Arastoo Badoei-Dalfard
- a Department of Biology, Faculty of Sciences , Shahid Bahonar University of Kerman , Kerman , Iran
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31
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Optimization of Protease Extraction from Horse Mango (Mangifera foetidaLour) Kernels by a Response Surface Methodology. Biosci Biotechnol Biochem 2014; 76:1438-44. [DOI: 10.1271/bbb.120073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Statistical analysis of production of protease and esterase by a newly isolated Lysinibacillus fusiformis AU01: purification and application of protease in sub-culturing cell lines. ANN MICROBIOL 2014. [DOI: 10.1007/s13213-014-0833-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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33
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Han M, Ding H, Wang J, Jin M, Yu X. Expression of the lasB gene encoding an organic solvent-stable elastase in Pichia pastoris and potential applications of the recombinant enzymes in peptide synthesis. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Wang J, Xu A, Wan Y, Li Q. Purification and Characterization of a New Metallo-Neutral Protease for Beer Brewing from Bacillus amyloliquefaciens SYB-001. Appl Biochem Biotechnol 2013; 170:2021-33. [DOI: 10.1007/s12010-013-0350-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 06/17/2013] [Indexed: 10/26/2022]
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35
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Jena PK, Trivedi D, Thakore K, Chaudhary H, Giri SS, Seshadri S. Isolation and characterization of probiotic properties of Lactobacilli isolated from rat fecal microbiota. Microbiol Immunol 2013; 57:407-16. [DOI: 10.1111/1348-0421.12054] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 03/11/2013] [Accepted: 04/02/2013] [Indexed: 01/26/2023]
Affiliation(s)
- Prasant Kumar Jena
- Institute of Science; Nirma University, Sarkhej-Gandhinagar Highway; Chharodi, Ahmedabad; 382481; Gujarat
| | - Disha Trivedi
- Institute of Science; Nirma University, Sarkhej-Gandhinagar Highway; Chharodi, Ahmedabad; 382481; Gujarat
| | - Kirati Thakore
- Institute of Science; Nirma University, Sarkhej-Gandhinagar Highway; Chharodi, Ahmedabad; 382481; Gujarat
| | - Harshita Chaudhary
- Institute of Science; Nirma University, Sarkhej-Gandhinagar Highway; Chharodi, Ahmedabad; 382481; Gujarat
| | - Sib Sankar Giri
- Department of Biotechnology; Periyar Maniammai University; Thanjavur; 613403; Tamilnadu; India
| | - Sriram Seshadri
- Institute of Science; Nirma University, Sarkhej-Gandhinagar Highway; Chharodi, Ahmedabad; 382481; Gujarat
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36
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Badoei-Dalfard A, Karami Z. Screening and isolation of an organic solvent tolerant-protease from Bacillus sp. JER02: Activity optimization by response surface methodology. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.11.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Process engineering studies to investigate the effect of temperature and pH on kinetic parameters of alkaline protease production. J Biosci Bioeng 2013; 115:86-9. [DOI: 10.1016/j.jbiosc.2012.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 06/28/2012] [Accepted: 08/03/2012] [Indexed: 11/19/2022]
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38
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Öztürk NÇ, Kazan D, Denizci AA, Erarslan A. The influence of copper on alkaline protease stability toward autolysis and thermal inactivation. Eng Life Sci 2012. [DOI: 10.1002/elsc.201200017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Nurçin Çelik Öztürk
- The Scientific and Technological Research Council of Turkey (TUBİTAK), Genetic Engineering and Biotechnology Institute (GEBI); Marmara Research Center Campus (MRC); Gebze - Kocaeli; Turkey
| | - Dilek Kazan
- Department of Bioengineering, Faculty of Engineering; Marmara University; Kadıköy-İstanbul; Turkey
| | - Aziz Akın Denizci
- The Scientific and Technological Research Council of Turkey (TUBİTAK), Genetic Engineering and Biotechnology Institute (GEBI); Marmara Research Center Campus (MRC); Gebze - Kocaeli; Turkey
| | - Altan Erarslan
- Department of Chemistry, Section of Biochemistry; Faculty of Arts and Sciences; Kocaeli University; İzmit-Kocaeli; Turkey
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39
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Jain D, Pancha I, Mishra SK, Shrivastav A, Mishra S. Purification and characterization of haloalkaline thermoactive, solvent stable and SDS-induced protease from Bacillus sp.: a potential additive for laundry detergents. BIORESOURCE TECHNOLOGY 2012; 115:228-236. [PMID: 22100240 DOI: 10.1016/j.biortech.2011.10.081] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 10/20/2011] [Accepted: 10/22/2011] [Indexed: 05/31/2023]
Abstract
An extracellular haloalkaline, thermoactive, solvent stable, SDS-induced serine protease was purified and characterized from an alkali-thermo tolerant strain Bacillus sp. SM2014 isolated from reverse osmosis reject. The enzyme was purified to homogeneity with recovery of 54.4% and purity fold of 64. The purified enzyme was composed of single polypeptide of molecular mass about 71 kDa. The enzyme showed optimum activity at alkaline pH 10 and temperature 60°C. The km and Vmax for the enzyme was 0.57 mg/ml and 445.23 U/ml respectively. The enzyme showed novel catalytic ability at high pH (10), temperature (60°C) and salinity (3M). Moreover, the stability of enzyme in organic solvents (50% v/v) of logP ≥ 2 signified the prospective of this enzyme for peptide synthesis. The compatibility of the enzyme with surfactants and various detergent matrices together with wash performance test confirmed its potential applicability in laundry industry.
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Affiliation(s)
- Deepti Jain
- Discipline of Salt Marine and Inorganic Chemicals, Central Salt and Marine Chemicals Research Institute, Council for Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar, India
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40
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Statistical Approach for Optimization of Physiochemical Requirements on Alkaline Protease Production from Bacillus licheniformis NCIM 2042. Enzyme Res 2012; 2012:905804. [PMID: 22347624 PMCID: PMC3278927 DOI: 10.1155/2012/905804] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 09/06/2011] [Accepted: 09/21/2011] [Indexed: 11/18/2022] Open
Abstract
The optimization of physiochemical parameters for alkaline protease production using Bacillus licheniformis NCIM 2042 were carried out by Plackett-Burman design and response surface methodology (RSM). The model was validated experimentally and the maximum protease production was found 315.28 U using optimum culture conditions. The protease was purified using ammonium sulphate (60%) precipitation technique. The HPLC analysis of dialyzed sample showed that the retention time is 1.84 min with 73.5% purity. This enzyme retained more than 92% of its initial activity after preincubation for 30 min at 37°C
in the presence of 25% v/v DMSO, methanol, ethanol, ACN, 2-propanol, benzene, toluene, and hexane. In addition, partially purified enzyme showed remarkable stability for 60 min at room temperature, in the presence of anionic detergent (Tween-80 and Triton X-100), surfactant (SDS), bleaching agent (sodium perborate and hydrogen peroxide), and anti-redeposition agents (Na2CMC, Na2CO3). Purified enzyme containing 10% w/v PEG 4000 showed better thermal, surfactant, and local detergent stability.
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41
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Antagonistic Activity of Cellular Components of Potential Probiotic Bacteria, Isolated from the Gut of Labeo rohita, Against Aeromonas hydrophila. Probiotics Antimicrob Proteins 2011; 3:214-22. [DOI: 10.1007/s12602-011-9078-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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