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Enhanced fermentation of biosurfactant mannosylerythritol lipids on the pilot scale under efficient foam control with addition of soybean oil. FOOD AND BIOPRODUCTS PROCESSING 2023. [DOI: 10.1016/j.fbp.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Konopacki M, Jabłońska J, Dubrowska K, Augustyniak A, Grygorcewicz B, Gliźniewicz M, Wróblewski E, Kordas M, Dołęgowska B, Rakoczy R. The Influence of Hydrodynamic Conditions in a Laboratory-Scale Bioreactor on Pseudomonas aeruginosa Metabolite Production. Microorganisms 2022; 11:microorganisms11010088. [PMID: 36677380 PMCID: PMC9866481 DOI: 10.3390/microorganisms11010088] [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: 11/28/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022] Open
Abstract
Hydrodynamic conditions are critical in bioprocessing because they influence oxygen availability for cultured cells. Processes in typical laboratory bioreactors need optimization of these conditions using mixing and aeration control to obtain high production of the desired bioproduct. It could be done by experiments supported by computational fluid dynamics (CFD) modeling. In this work, we characterized parameters such as mixing time, power consumption and mass transfer in a 2 L bioreactor. Based on the obtained results, we chose a set of nine process parameters to test the hydrodynamic impact on a selected bioprocess (mixing in the range of 0-160 rpm and aeration in the range of 0-250 ccm). Therefore, we conducted experiments with P. aeruginosa culture and assessed how various hydrodynamic conditions influenced biomass, pyocyanin and rhamnolipid production. We found that a relatively high mass transfer of oxygen (kLa = 0.0013 s-1) connected with intensive mixing (160 rpm) leads to the highest output of pyocyanin production. In contrast, rhamnolipid production reached maximal efficiency under moderate oxygen mass transfer (kLa = 0.0005 s-1) and less intense mixing (in the range of 0-60 rpm). The results indicate that manipulating hydrodynamics inside the bioreactor allows control of the process and may lead to a change in the metabolites produced by bacterial cells.
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Affiliation(s)
- Maciej Konopacki
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
- Department of Laboratory Medicine, Chair of Microbiology, Immunology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
- Correspondence: (M.K.); (A.A.)
| | - Joanna Jabłońska
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
| | - Kamila Dubrowska
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
| | - Adrian Augustyniak
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
- Chair of Building Materials and Construction Chemistry, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
- Institute of Biology, University of Szczecin, Wąska 13 Str., 71-415 Szczecin, Poland
- Correspondence: (M.K.); (A.A.)
| | - Bartłomiej Grygorcewicz
- Department of Laboratory Medicine, Chair of Microbiology, Immunology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Marta Gliźniewicz
- Department of Laboratory Medicine, Chair of Microbiology, Immunology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Emil Wróblewski
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
| | - Marian Kordas
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
| | - Barbara Dołęgowska
- Department of Laboratory Medicine, Chair of Microbiology, Immunology and Laboratory Medicine, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Rafał Rakoczy
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Avenue 42, 71-065 Szczecin, Poland
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Kholghi N, Amani H, Malekmahmoodi S, Amiri A. Investigation on Heavy Metal Removal from a Crude Oil Contaminated Soil using Rhamnolipid Biosurfactant as a New Eco-Friendly Method. TENSIDE SURFACT DET 2021. [DOI: 10.3139/113.110710] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Abstract
Many studies have been conducted on the removal of heavy metals from industrial wastewater using biosurfactants, but few papers have been published on the removal of heavy metals from soil contaminated with crude oil using this method. The aim of this study is to evaluate the performance of rhamnolipid biosurfactants in removing nickel, chromium, and cadmium from soil contaminated with crude oil. In this study, first rhamnolipid was produced from Pseudomonas aeruginosa PTCC1340 and then confirmed by Thin-Layer-Chromatography (TLC) and Fourier-Transformation-Infrared-Spectroscopy (FTIR). In the next step, a sandy soil (2 mm diameter) was mixed with the crude oil (API = 32.83, viscosity = 6.21cp) at 258C for 2 weeks. The washing parameters included temperature, pH and rhamnolipid dosage. Based on our results, the heavy metal removal of nickel, chromium and cadmium from soil contaminated with crude oil at the optimum condition (258C, 0.8 g/L and pH 11) was 43.05%, 34.73% and 52.81%, respectively. Based on the results, rhamnolipids are found to have considerable potential for removing heavy metals especially cadmium, and the soil washing by the produced biosurfactant leads to the removal of heavy metals without the destructive effects of chemical surfactants and subsequently reduces environmental pollution. Therefore, this biosurfactant rhamnolipid may have a good potential for application in bioremediation of crude oil contamination.
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Affiliation(s)
- Nayyereh Kholghi
- Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol , Iran
| | - Hossein Amani
- Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol , Iran
| | | | - Alireza Amiri
- Nanotechnology Research Institute, Babol Noshirvani University of Technology, Babol , Iran
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Varjani S, Rakholiya P, Yong Ng H, Taherzadeh MJ, Hao Ngo H, Chang JS, Wong JWC, You S, Teixeira JA, Bui XT. Bio-based rhamnolipids production and recovery from waste streams: Status and perspectives. BIORESOURCE TECHNOLOGY 2021; 319:124213. [PMID: 33254448 DOI: 10.1016/j.biortech.2020.124213] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/26/2020] [Accepted: 09/29/2020] [Indexed: 06/12/2023]
Abstract
Bio-based rhamnolipid production from waste streams is gaining momentum nowadays because of increasing market demand, huge range of applications and its economic and environment friendly nature. Rhamnolipid type biosurfactants are produced by microorganisms as secondary metabolites and have been used to reduce surface/interfacial tension between two different phases. Biosurfactants have been reported to be used as an alternative to chemical surfactants. Pseudomonas sp. has been frequently used for production of rhamnolipid. Various wastes can be used in production of rhamnolipid. Rhamnolipids are widely used in various industrial applications. The present review provides information about structure and nature of rhamnolipid, production using different waste materials and scale-up of rhamnolipid production. It also provides comprehensive literature on various industrial applications along with perspectives and challenges in this research area.
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Affiliation(s)
- Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Parita Rakholiya
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India; Kadi Sarva Vishwavidyalaya, Gandhinagar, Gujarat 382015, India
| | - How Yong Ng
- National University of Singapore Environmental Research Institute, 5A Engineering Drive 1, Singapore 117411, Singapore
| | | | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Jose A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710057 Braga, Portugal
| | - Xuan-Thanh Bui
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam; Key Laboratory of Advanced Waste Treatment Technology, Vietnam National University Ho Chi Minh (VNU-HCM), Linh Trung ward, Thu Duc district, Ho Chi Minh City 700000, Viet Nam
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