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Kanwar K, Sharma D, Singh H, Pal M, Bandhu R, Azmi W. In vitro effects of alginate lyase SG4 + produced by Paenibacillus lautus alone and combined with antibiotics on biofilm formation by mucoid Pseudomonas aeruginosa. Braz J Microbiol 2024; 55:1189-1203. [PMID: 38705960 PMCID: PMC11153421 DOI: 10.1007/s42770-024-01334-w] [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: 12/08/2023] [Accepted: 04/03/2024] [Indexed: 05/07/2024] Open
Abstract
Alginate is a major extra polymeric substance in the biofilm formed by mucoid Pseudomonas aeruginosa. It is the main proven perpetrator of lung infections in patients suffering from cystic fibrosis. Alginate lyases are very important in the treatment of cystic fibrosis. This study evaluated the role of standalone and in conjugation, effect of alginate lyase of SG4 + isolated from Paenibacillus lautus in enhancing in vitro bactericidal activity of gentamicin and amikacin on mucoid P. aeruginosa. Using Response Surface Methodology (RSM) alginate lyase SG4 + production was optimized in shake flask and there 8.49-fold enhancement in enzyme production. In fermenter, maximum growth (10.15 mg/ml) and alginate lyase (1.46 International Units) production, 1.71-fold was increased using Central Composite Design (CCD). Further, fermentation time was reduced from 48 to 20 h. To the best of our knowledge this is the first report in which CCD was used for fermenter studies to optimize alginate lyase production. The Km and Vmax of purified enzyme were found to be 2.7 mg/ml and 0.84 mol/ml-min, respectively. The half-life (t 1/2) of purified alginate lyase SG4 + at 37 °C was 180 min. Alginate lyase SG4 + in combination with gentamicin and amikacin eradiated 48.4- 52.3% and 58- 64.6%, alginate biofilm formed by P. aeruginosa strains, respectively. The study proves that alginate lyase SG4 + has excellent exopolysaccharide disintegrating ability and may be useful in development of potent therapeutic agent to treat P. aeruginosa biofilms.
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Affiliation(s)
- Kriti Kanwar
- Department of Biotechnology, Himachal Pradesh University, Summerhill Shimla, H.P, 171005, India.
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India.
| | - Deepika Sharma
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India
| | - Harjodh Singh
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India
| | - Mohinder Pal
- Chandigarh Group of College, Landran, Kharar- Banur Highway, Sector 112, Greater Mohali, Panjab, 140307, India
| | - Rajneesh Bandhu
- Department of Biotechnology, Himachal Pradesh University, Summerhill Shimla, H.P, 171005, India
| | - Wamik Azmi
- Department of Biotechnology, Himachal Pradesh University, Summerhill Shimla, H.P, 171005, India.
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Yang L, Shakeel Q, Xu X, Ali L, Chen Z, Mubeen M, Sohail MA, IfItikhar Y, Kumar A, Solanki MK, Zhou Y, Zhao D, Alharbi NK, Wang J. Optimized submerged batch fermentation for metabolic switching in Streptomyces yanglinensis 3-10 providing platform for reveromycin A and B biosynthesis, engineering, and production. Front Microbiol 2024; 15:1378834. [PMID: 38784807 PMCID: PMC11112568 DOI: 10.3389/fmicb.2024.1378834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/09/2024] [Indexed: 05/25/2024] Open
Abstract
The cultivation system requires that the approach providing biomass for all types of metabolic analysis is of excellent quality and reliability. This study was conducted to enhance the efficiency and yield of antifungal substance (AFS) production in Streptomyces yanglinensis 3-10 by optimizing operation conditions of aeration, agitation, carbon source, and incubation time in a fermenter. Dissolved oxygen (DO) and pH were found to play significant roles in AFS production. The optimum pH for the production of AFS in S. yanglinensis 3-10 was found to be 6.5. As the AFS synthesis is generally thought to be an aerobic process, DO plays a significant role. The synthesis of bioactive compounds can vary depending on how DO affects growth rate. This study validates that the high growth rate and antifungal activity required a minimum DO concentration of approximately 20% saturation. The DO supply in a fermenter can be raised once agitation and aeration have been adjusted. Consequently, DO can stimulate the development of bacteria and enzyme production. A large shearing effect could result from the extreme agitation, harming the cell and deactivating its products. The highest inhibition zone diameter (IZD) was obtained with 3% starch, making starch a more efficient carbon source than glucose. Temperature is another important factor affecting AFS production. The needed fermentation time would increase and AFS production would be reduced by the too-low operating temperature. Furthermore, large-scale fermenters are challenging to manage at temperatures that are far below from room temperature. According to this research, 28°C is the ideal temperature for the fermentation of S. yanglinensis 3-10. The current study deals with the optimization of submerged batch fermentation involving the modification of operation conditions to effectively enhance the efficiency and yield of AFS production in S. yanglinensis 3-10.
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Affiliation(s)
- Longyan Yang
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Qaiser Shakeel
- Cholistan Institute of Desert Studies, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Xueqin Xu
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Liaqat Ali
- Cholistan Institute of Desert Studies, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Zhiyan Chen
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Mustansar Mubeen
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Aamir Sohail
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Yasir IfItikhar
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Ajay Kumar
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Manoj Kumar Solanki
- Department of Life Sciences and Biological Sciences, IES University, Bhopal, Madhya Pradesh, India
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Yun Zhou
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Dongling Zhao
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, China
| | - Nada K. Alharbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Jie Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
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Silva IF, Langbehn RK, Silva RGC, Pantoja LDA, Vanzela APFC, Santos ASD. α-Amylase production byBacillus amyloliquefaciensutilizing macauba cake (Acrocomia aculeata) and peach palm flour (Bactris gasipaes –kunth) as substrates. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.1080/10242422.2016.1227794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Derakhti S, Shojaosadati SA, Hashemi M, Khajeh K. PROCESS PARAMETERS STUDY OF α-AMYLASE PRODUCTION IN A PACKED-BED BIOREACTOR UNDER SOLID-STATE FERMENTATION WITH POSSIBILITY OF TEMPERATURE MONITORING. Prep Biochem Biotechnol 2012; 42:203-16. [DOI: 10.1080/10826068.2011.599466] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rahulan R, Dhar KS, Madhavan Nampoothiri K, Pandey A. Production of leucine amino peptidase in lab scale bioreactors using Streptomyces gedanensis. BIORESOURCE TECHNOLOGY 2011; 102:8171-8178. [PMID: 21733679 DOI: 10.1016/j.biortech.2011.06.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 06/06/2011] [Accepted: 06/08/2011] [Indexed: 05/31/2023]
Abstract
Studies were conducted on the production of leucine amino peptidase (LAP) by Streptomyces gedanensis to ascertain the performance of the process in shake flask, parallel fermenter and 5-L fermenter utilizing soy bean meal as the carbon source. Experiments were conducted to analyze the effects of aeration and agitation rate on cell growth and LAP production. The results unveiled that an agitation rate of 300 rpm, 50% dissolved oxygen (DO) upholding and 0.15 vvm strategies were the optimal for the enzyme production, yielding 22.72 ± 0.11 IU/mL LAP in parallel fermenter which was comparable to flask level (24.65 ± 0.12 IU/mL LAP) fermentation. Further scale-up, in 5-L fermenter showed 50% DO and 1 vvm aeration rate was the best, producing optimum and the production was 20.09 ± 0.06 IU/mL LAP. The information obtained could be useful to design a strategy to improve a large-scale bioreactor cultivation of cells and production of LAP.
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Affiliation(s)
- Raji Rahulan
- Biotechnology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India
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Oda M, Kaieda M, Hama S, Yamaji H, Kondo A, Izumoto E, Fukuda H. Facilitatory effect of immobilized lipase-producing Rhizopus oryzae cells on acyl migration in biodiesel-fuel production. Biochem Eng J 2005. [DOI: 10.1016/j.bej.2004.10.009] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jang HD, Chang KS. Thermostable cellulases from Streptomycessp.: scale-up production in a 50-l fermenter. Biotechnol Lett 2005; 27:239-42. [PMID: 15742143 DOI: 10.1007/s10529-004-8356-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2004] [Accepted: 12/16/2004] [Indexed: 10/25/2022]
Abstract
Thermostable cellulase was produced by Streptomyces sp. T3-1 grown in a 50-l fermenter. Maximum cellulase activity was attained on the fourth day when agitation speeds and aeration rates were controlled at 300 rpm and 0.75 vvm, respectively. Maximum enzyme activities were: 148 IU CMCase ml(-1), 45 IU Avicelase ml(-1), and 137 IU beta-glucosidase ml(-1) with productivity of 326 IU l(-1) h(-1), which were 10-32% higher than the values obtained in shake-flask cultures.
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Affiliation(s)
- Hung-Der Jang
- Department of Food Science, Yuanpei University of Science and Technology, 300, Hsinchu, Taiwan.
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Feng Y, He Z, Ong SL, Hu J, Zhang Z, Ng WJ. Optimization of agitation, aeration, and temperature conditions for maximum β-mannanase production. Enzyme Microb Technol 2003. [DOI: 10.1016/s0141-0229(02)00287-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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