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Aqif M, Shah MUH, Khan R, Umar M, SajjadHaider, Razak SIA, Wahit MU, Khan SUD, Sivapragasam M, Ullah S, Nawaz R. Glycolipids biosurfactants production using low-cost substrates for environmental remediation: progress, challenges, and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:47475-47504. [PMID: 39017873 DOI: 10.1007/s11356-024-34248-z] [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: 08/03/2023] [Accepted: 07/02/2024] [Indexed: 07/18/2024]
Abstract
The production of renewable materials from alternative sources is becoming increasingly important to reduce the detrimental environmental effects of their non-renewable counterparts and natural resources, while making them more economical and sustainable. Chemical surfactants, which are highly toxic and non-biodegradable, are used in a wide range of industrial and environmental applications harming humans, animals, plants, and other entities. Chemical surfactants can be substituted with biosurfactants (BS), which are produced by microorganisms like bacteria, fungi, and yeast. They have excellent emulsifying, foaming, and dispersing properties, as well as excellent biodegradability, lower toxicity, and the ability to remain stable under severe conditions, making them useful for a variety of industrial and environmental applications. Despite these advantages, BS derived from conventional resources and precursors (such as edible oils and carbohydrates) are expensive, limiting large-scale production of BS. In addition, the use of unconventional substrates such as agro-industrial wastes lowers the BS productivity and drives up production costs. However, overcoming the barriers to commercial-scale production is critical to the widespread adoption of these products. Overcoming these challenges would not only promote the use of environmentally friendly surfactants but also contribute to sustainable waste management and reduce dependence on non-renewable resources. This study explores the efficient use of wastes and other low-cost substrates to produce glycolipids BS, identifies efficient substrates for commercial production, and recommends strategies to improve productivity and use BS in environmental remediation.
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Affiliation(s)
- Muhammad Aqif
- Faculty of Materials and Chemical Engineering, Department of Chemical Engineering, Ghulam Ishaq Khan Institute, Topi, Swabi, Khyber Pakhtunkhwa, 23460, Pakistan
- Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, 11421, Riyadh, Saudi Arabia
| | - Mansoor Ul Hassan Shah
- Department of Chemical Engineering, Faculty of Mechanical, Chemical and Industrial Engineering, University of Engineering and Technology, Peshawar, 25120, Pakistan
| | - Rawaiz Khan
- College of Dentistry, Engineer Abdullah Bugshan Research Chair for Dental and Oral Rehabilitation, King Saud University, 11545, Riyadh, Saudi Arabia.
| | - Muhammad Umar
- Faculty of Materials and Chemical Engineering, Department of Chemical Engineering, Ghulam Ishaq Khan Institute, Topi, Swabi, Khyber Pakhtunkhwa, 23460, Pakistan
| | - SajjadHaider
- Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, 11421, Riyadh, Saudi Arabia
| | - Saiful Izwan Abd Razak
- BioInspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
- Sports Innovation & Technology Centre, Institute of Human Centred Engineering, Universiti Teknologi Malaysia, 81300, Skudai, Johor, Malaysia
| | - Mat Uzir Wahit
- Faculty of Chemical and Energy Engineering, UniversitiTeknologi Malaysia (UTM), 81310, Skudai, Johor Bahru, Johor, Malaysia
- Centre for Advanced Composite Materials (CACM), Universiti Teknologi Malaysia (UTM), 81310, Skudai, Johor, Malaysia
| | - Salah Ud-Din Khan
- College of Engineering, Sustainable Energy Center Technologies, King Saud University, P.O. Box 800, 11421, Riyadh, Saudi Arabia
| | - Magaret Sivapragasam
- Faculty of Integrated Life Sciences, School of Integrated Sciences (SIS), School of Postgraduate Studies, Research and Internationalization, Quest International University, 30250, Ipoh, Perak, Malaysia
| | - Shafi Ullah
- Institute of Soil and Environmental Sciences, PirMehr Ali Shah Arid Agriculture University Shamsabad, Murree Rd, Rawalpindi, 46300, Pakistan
| | - Rab Nawaz
- Institute of Soil and Environmental Sciences, PirMehr Ali Shah Arid Agriculture University Shamsabad, Murree Rd, Rawalpindi, 46300, Pakistan
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600, Bangi, Selangor, Malaysia
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Kłosowska-Chomiczewska IE, Macierzanka A, Parchem K, Miłosz P, Bladowska S, Płaczkowska I, Hewelt-Belka W, Jungnickel C. Microbe cultivation guidelines to optimize rhamnolipid applications. Sci Rep 2024; 14:8362. [PMID: 38600115 PMCID: PMC11006924 DOI: 10.1038/s41598-024-59021-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/05/2024] [Indexed: 04/12/2024] Open
Abstract
In the growing landscape of interest in natural surfactants, selecting the appropriate one for specific applications remains challenging. The extensive, yet often unsystematized, knowledge of microbial surfactants, predominantly represented by rhamnolipids (RLs), typically does not translate beyond the conditions presented in scientific publications. This limitation stems from the numerous variables and their interdependencies that characterize microbial surfactant production. We hypothesized that a computational recipe for biosynthesizing RLs with targeted applicational properties could be developed from existing literature and experimental data. We amassed literature data on RL biosynthesis and micellar solubilization and augmented it with our experimental results on the solubilization of triglycerides (TGs), a topic underrepresented in current literature. Utilizing this data, we constructed mathematical models that can predict RL characteristics and solubilization efficiency, represented as logPRL = f(carbon and nitrogen source, parameters of biosynthesis) and logMSR = f(solubilizate, rhamnolipid (e.g. logPRL), parameters of solubilization), respectively. The models, characterized by robust R2 values of respectively 0.581-0.997 and 0.804, enabled the ranking of descriptors based on their significance and impact-positive or negative-on the predicted values. These models have been translated into ready-to-use calculators, tools designed to streamline the selection process for identifying a biosurfactant optimally suited for intended applications.
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Affiliation(s)
- Ilona E Kłosowska-Chomiczewska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland.
| | - Adam Macierzanka
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Karol Parchem
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Pamela Miłosz
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Sonia Bladowska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Iga Płaczkowska
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Weronika Hewelt-Belka
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
| | - Christian Jungnickel
- Department of Colloid and Lipid Science, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233, Gdańsk, Poland
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Vučurović D, Bajić B, Trivunović Z, Dodić J, Zeljko M, Jevtić-Mučibabić R, Dodić S. Biotechnological Utilization of Agro-Industrial Residues and By-Products-Sustainable Production of Biosurfactants. Foods 2024; 13:711. [PMID: 38472824 DOI: 10.3390/foods13050711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/09/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
The importance and interest in the efficient use and valorization of agro-industrial residues and by-products have grown due to environmental problems associated with improper disposal. Biotechnological production processes, including microbial biosurfactant production, represent a sustainable way to utilize agro-industrial residues and by-products, which are applied as substrates in these processes. Biosurfactants produced by microorganisms using renewable resources are a viable alternative to traditional petrochemical surfactants and have several potential uses in a wide range of industrial sectors due to their minimal ecotoxicity, easy biodegradability, and moderate production conditions. The common applications of biosurfactants, besides in food industry as food additives and preservatives, are in agriculture, environmental protection, the cosmetics and pharmaceutical industry, wastewater treatment, the petroleum industry, etc. This review aims to summarize the comprehensive scientific research related to the use of various agro-industrial residues and by-products in the microbial production of biosurfactants, as well as to emphasize the present state and the importance of their sustainable production. Additionally, based on the available biosurfactant market analysis datasets and research studies, the current situation in science and industry and the future perspectives of microbial biosurfactant production have been discussed.
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Affiliation(s)
- Damjan Vučurović
- Department of Biotechnology, Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Bojana Bajić
- Department of Biotechnology, Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Zorana Trivunović
- Department of Biotechnology, Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Jelena Dodić
- Department of Biotechnology, Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Marko Zeljko
- Department of Biotechnology, Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Rada Jevtić-Mučibabić
- Institute for Food Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Siniša Dodić
- Department of Biotechnology, Faculty of Technology Novi Sad, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
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Azevedo MA, Teixeira JA, Pastrana L, Cerqueira MA. Rhamnolipids: A biosurfactant for the development of lipid-based nanosystems for food applications. Compr Rev Food Sci Food Saf 2024; 23:e13252. [PMID: 38284602 DOI: 10.1111/1541-4337.13252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 08/28/2023] [Accepted: 09/20/2023] [Indexed: 01/30/2024]
Abstract
Biosurfactants (surfactants synthesized by microorganisms) are produced by microorganisms and are suitable for use in different areas. Among biosurfactants, rhamnolipids are the most studied and popular, attracting scientists, and industries' interest. Due to their unique characteristics, the rhamnolipids have been used as synthetic surfactants' alternatives and explored in food applications. Besides the production challenges that need to be tackled to guarantee efficient production and low cost, their properties need to be adjusted to the final application, where the pH instability needs to be considered. Moreover, regulatory approval is needed to start being used in commercial applications. One characteristic of interest is their capacity to form oil-in-water nanosystems. Some of the most explored have been nanoemulsions, solid-lipid nanoparticles and nanostructured lipid carriers. This review presents an overview of the main properties of rhamnolipids, asserts the potential and efficiency of rhamnolipids to replace the synthetic surfactants in the development of nanosystems, and describes the rhamnolipids-based nanosystems used in food applications. It also discusses the main characteristics and methodologies used for their characterization and in the end, some of the main challenges are highlighted.
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Affiliation(s)
- Maria A Azevedo
- International Iberian Nanotechnology Laboratory, Braga, Portugal
- Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - José A Teixeira
- Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Lorenzo Pastrana
- International Iberian Nanotechnology Laboratory, Braga, Portugal
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Yusuff AS, Ishola NB, Gbadamosi AO. Artificial Intelligence Techniques and Response Surface Methodology for the Optimization of Methyl Ester Sulfonate Synthesis from Used Cooking Oil by Sulfonation. ACS OMEGA 2023; 8:19287-19301. [PMID: 37305254 PMCID: PMC10249033 DOI: 10.1021/acsomega.2c08117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/24/2023] [Indexed: 06/13/2023]
Abstract
Herein, the impacts of sulfonation temperature (100-120 °C), sulfonation time (3-5 h), and NaHSO3/methyl ester (ME) molar ratio (1:1-1.5:1 mol/mol) on methyl ester sulfonate (MES) yield were studied. For the first time, MES synthesis via the sulfonation process was modeled using the adaptive neuro-fuzzy inference system (ANFIS), artificial neural network (ANN), and response surface methodology (RSM). Moreover, particle swarm optimization (PSO) and RSM methods were used to improve the independent process variables that affect the sulfonation process. The RSM model (coefficient of determination (R2) = 0.9695, mean square error (MSE) = 2.7094, and average absolute deviation (AAD) = 2.9508%) was the least efficient in accurately predicting MES yield, whereas the ANFIS model (R2 = 0.9886, MSE = 1.0138, and AAD = 0.9058%) was superior to the ANN model (R2 = 0.9750, MSE = 2.6282, and AAD = 1.7184%). The results of process optimization using the developed models revealed that PSO outperformed RSM. The ANFIS model coupled with PSO (ANFIS-PSO) achieved the best combination of sulfonation process factors (96.84 °C temperature, 2.68 h time, and 0.92:1 mol/mol NaHSO3/ME molar ratio) that resulted in the maximum MES yield of 74.82%. Analysis of MES synthesized under optimum conditions using FTIR, 1H NMR, and surface tension determination showed that MES could be prepared from used cooking oil.
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Affiliation(s)
- Adeyinka Sikiru Yusuff
- Department
of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University, Ado-Ekiti 23438, Nigeria
| | - Niyi Babatunde Ishola
- Department
of Chemical Engineering, Faculty of Technology, Obafemi Awolowo University, Ile-Ife 23438, Nigeria
| | - Afeez Olayinka Gbadamosi
- Department
of Petroleum Engineering, College of Petroleum and Geosciences, King Fahd University of Petroleum and Minerals, 31261 Dhahran, Saudi Arabia
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Bode‐Olajide FB, Yusuff AS, Adesina OA, Adeniyi AT. Influence of process conditions on the sulfonation of methyl ester synthesized from used cooking oil: Optimization by Taguchi approach. J SURFACTANTS DETERG 2023. [DOI: 10.1002/jsde.12661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Favour B. Bode‐Olajide
- Department of Chemical and Petroleum Engineering, College of Engineering Afe Babalola University Ado‐Ekiti Nigeria
| | - Adeyinka S. Yusuff
- Department of Chemical and Petroleum Engineering, College of Engineering Afe Babalola University Ado‐Ekiti Nigeria
| | - Olusola A. Adesina
- Department of Chemical and Petroleum Engineering, College of Engineering Afe Babalola University Ado‐Ekiti Nigeria
| | - Adekunle T. Adeniyi
- Department of Chemical and Petroleum Engineering, College of Engineering Afe Babalola University Ado‐Ekiti Nigeria
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Yang B, Wang J, Wu M, Shang Q, Zhang H. Effect of rhamnolipids on the biodegradation of m-dichlorobenzene in biotrickling filters: Performance and mechanism. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 320:115951. [PMID: 36056502 DOI: 10.1016/j.jenvman.2022.115951] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
In this study, the effect of rhamnolipids (RL) on m-dichlorobenzene (m-DCB) removal and biofilm was investigated in two biotrickling filters (BTF) (BTF1: blank control; BTF2: RL addition). The critical micelle concentration (CMC) value of RL was 75.6 mg L-1, and the RL could significantly improve the solubilization of m-DCB. The results showed that the optimal concentration of RL was 180 mg L-1. The removal efficiency (RE) of m-DCB dropped by 42.4% for BTF1 no fed with RL and only 28.2% for BTF2 fed with RL when the inlet concentration increased from 200 to 1400 mg m-3 at an empty bed time (EBRT) of 60 s. RL increased the secretion of extracellular polymers (EPS) and the ratio of Protein/Polysaccharide, which improved the mass transfer of m-DCB to the biofilm. RL also had a facilitating effect on catechol-1,2-dioxygenase (C12O) enzyme activity. Furthermore, RL increased Zeta potential and facilitated microorganisms to form biofilm. The dominant microorganisms of microbial community were increased and the application of RL promoted the enrichment of them.
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Affiliation(s)
- Bairen Yang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China.
| | - Jiajie Wang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Menglei Wu
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Qingqing Shang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Hao Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
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Sodium-ion batteries: Chemistry of biomass derived disordered carbon in carbonate and ether-based electrolytes. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140744] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Guava Seed Oil: Potential Waste for the Rhamnolipids Production. FERMENTATION 2022. [DOI: 10.3390/fermentation8080379] [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
Guava is consumed in natura and is also of considerable importance to the food industry. The seeds and peel of this fruit are discarded, however, guava seeds yield oil (~13%) that can be used for the bioproducts synthesis. The use of a by-product as a carbon source is advantageous, as it reduces the environmental impact of possible harmful materials to nature, while adding value to products. In addition, the use of untested substrates can bring new yield and characterization results. Thus, this research sought to study rhamnolipids (RLs) production from guava seed oil, a by-product of the fructorefinery. The experiments were carried out using Pseudomonas aeruginosa LBI 2A1 and experimental design was used to optimize the variables Carbon and Nitrogen concentration. Characterization of RLs produced occurred by LC-MS. In this study, variables in the quadratic forms and the interaction between them influenced the response (p < 0.05). The most significant variable was N concentration. Maximum RLs yield achieved 39.97 g/L, predominantly of mono-RL. Characterization analysis revealed 9 homologues including the presence of RhaC10C14:2 (m/z 555) whose structure has not previously been observed. This research showed that guava seed oil is an alternative potential carbon source for rhamnolipid production with rare rhamnolipid homologues.
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Awodi P, Ogbonna J, Nwagu T. Bioconversion of mango (Mangifera indica) seed kernel starch into bioethanol using various fermentation techniques. Heliyon 2022; 8:e09707. [PMID: 35789867 PMCID: PMC9249675 DOI: 10.1016/j.heliyon.2022.e09707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/27/2022] [Accepted: 06/07/2022] [Indexed: 11/06/2022] Open
Abstract
The potential of mango seed kernel starch (MKS) as a feedstock for bioethanol production was evaluated in this study. Starch extraction and hydrolysis from mango kernel were studied. Fermentation methods included separate hydrolysis and fermentation (SH&F), simultaneous saccharification and co-fermentation (SS&CF), simultaneous saccharification and fermentation (SS&F), and modified simultaneous saccharification and fermentation (SS&F) techniques. Drying and wet-milling generated 41.2 g of white starch/100 g flour, and processing with alum gave 58.6/100 g MKS. Hydrolysis of 5 g MKS by sulfuric acid, sodium hydroxide, malted “acha”, and Aspergillus niger amylase for 2 h produced (g/100 mL) 3.97 g, 4.0 g, 4.43 g and 4.24 g of sugar, respectively. Fermentation with 7 g of MKS yielded maximum sugar and ethanol concentrations. Ethanol obtained using SS&CF, SH&F, SS&F and modified SS&F were (v/v); 0.26%, 2.0%, 1.13% and 3.985%, respectively. These results confirmed MKS as a potential feedstock for bioethanol production. Mango kernels are abundantly generated waste from mango fruit. Mango kernel flour was extracted and treated for starch recovery. Produced starch was used as feed stock for sugar and ethanol production. Varying fermentation techniques were explored for ethanol production. Modified simultaneous saccharification & fermentation gave 4.0% ethanol yield.
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Assessment of Bioactive Compounds, Physicochemical Properties, and Microbial Attributes of Hot Air–Dried Mango Seed Kernel Powder: an Approach for Quality and Safety Evaluation of Hot Air–Dried Mango Seed Kernel Powder. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02318-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nayak P, Rayaguru K, Brahma S, Routray W, Dash SK. Standardization of process protocol for isolation of starch from mango kernel and its characterization. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:2813-2825. [PMID: 34738641 DOI: 10.1002/jsfa.11622] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 10/25/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The major by-products of mango processing are the seeds, which represent approximately 15-20% of the fruit. The process protocol for isolation of starch from mango kernel was standardized based on starch yield, starch purity and colour values using centrifugation and chemical method. Optimized starches obtained from both methods were further investigated for estimation of functional properties and were characterized through Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, differential scanning calorimetry and pasting properties analysis. RESULTS The slurry making of mango kernels with a solid-to-water ratio of 1:3 at a centrifugation frequency of 3 times was found to be the best among all the experimental combinations (solid-to-water proportion (1:2, 1:3 and 1:4, w/v) and centrifugation frequency (2, 3 and 4 times)) with a starch yield of 48.43 ± 1.08% and purity of 76.46 ± 0.83%. In the chemical method of starch isolation (washing was done with 0.1 mol L-1 NaOH and 0.1 mol L-1 HCl at three levels each), the sample treated with 60% (w/v) 0.1 mol L-1 NaOH and 10% (w/v) 0.1 mol L-1 HCl resulted in 36.50 ± 0.58% starch yield with a purity of 92.03 ± 0.87%. Among the functional properties, the chemically isolated starch showed significantly higher paste clarity (45.79 ± 2.36%) than starch obtained using the centrifugation process (12.50 ± 1.57%). The chemically isolated starch also exhibited better colour attributes, which were very close to those of laboratory-grade starch. CONCLUSION Detailed characterization studies inferred that both the starches possessed good functional, structural and thermal properties, indicating suitability for food and non-food applications. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Parv Nayak
- College of Agricultural Engineering and Technology, OUAT, Bhubaneswar, Odisha, 751003, India
| | - Kalpana Rayaguru
- College of Agricultural Engineering and Technology, OUAT, Bhubaneswar, Odisha, 751003, India
| | | | - Winny Routray
- Department of Food Process Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Sanjaya Kumar Dash
- College of Agricultural Engineering and Technology, OUAT, Bhubaneswar, Odisha, 751003, India
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Eras-Muñoz E, Farré A, Sánchez A, Font X, Gea T. Microbial biosurfactants: a review of recent environmental applications. Bioengineered 2022; 13:12365-12391. [PMID: 35674010 PMCID: PMC9275870 DOI: 10.1080/21655979.2022.2074621] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Microbial biosurfactants are low-molecular-weight surface-active compounds of high industrial interest owing to their chemical properties and stability under several environmental conditions. The chemistry of a biosurfactant and its production cost are defined by the selection of the producer microorganism, type of substrate, and purification strategy. Recently, biosurfactants have been applied to solve or contribute to solving some environmental problems, with this being their main field of application. The most referenced studies are based on the bioremediation of contaminated soils with recalcitrant pollutants, such as hydrocarbons or heavy metals. In the case of heavy metals, biosurfactants function as chelating agents owing to their binding capacity. However, the mechanism by which biosurfactants typically act in an environmental field is focused on their ability to reduce the surface tension, thus facilitating the emulsification and solubilization of certain pollutants (in-situ biostimulation and/or bioaugmentation). Moreover, despite the low toxicity of biosurfactants, they can also act as biocidal agents at certain doses, mainly at higher concentrations than their critical micellar concentration. More recently, biosurfactant production using alternative substrates, such as several types of organic waste and solid-state fermentation, has increased its applicability and research interest in a circular economy context. In this review, the most recent research publications on the use of biosurfactants in environmental applications as an alternative to conventional chemical surfactants are summarized and analyzed. Novel strategies using biosurfactants as agricultural and biocidal agents are also presented in this paper.
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Affiliation(s)
- Estefanía Eras-Muñoz
- Composting Research Group (GICOM), Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Abel Farré
- Composting Research Group (GICOM), Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Antoni Sánchez
- Composting Research Group (GICOM), Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Xavier Font
- Composting Research Group (GICOM), Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Teresa Gea
- Composting Research Group (GICOM), Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
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Conversion of Waste Cooking Oil to Rhamnolipid by a Newly Oleophylic Pseudomonas aeruginosa WO2. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031700. [PMID: 35162723 PMCID: PMC8835509 DOI: 10.3390/ijerph19031700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/30/2022] [Accepted: 01/30/2022] [Indexed: 02/05/2023]
Abstract
The components of waste cooking oil (WCO) are complex and contain toxic substances, which are difficult to treat biologically. Pseudomonas aeruginosa WO2 was isolated from oily sludge by an anaerobic enrichment–aerobic screening method, which could efficiently utilize WCO and produce rhamnolipid. The effects of nutrients and culture conditions on bacterial growth and lipase activity were investigated to optimize the fermentation of WCO. The results showed that strain WO2 utilized 92.25% of WCO and produced 3.03 g/L of rhamnolipid at 120 h. Compared with inorganic sources, the organic nitrogen source stabilized the pH of fermentation medium, improved lipase activity (up to 19.98 U/mL), and promoted the utilization of WCO. Furthermore, the WO2 strain exhibited inferior utilization ability of the soluble starch contained in food waste, but superior salt stress up to 60 g/L. These unique characteristics demonstrate the potential of Pseudomonas aeruginosa WO2 for the utilization of high-salinity oily organic waste or wastewater.
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15
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Mwaurah PW, Kumar S, Kumar N, Attkan AK, Panghal A, Singh VK. Ultrasound and microwave‐assisted solvent extraction of mango kernel oil and evaluation of physicochemical properties and fatty acid profile. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Peter Waboi Mwaurah
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Sunil Kumar
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Nitin Kumar
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Arun Kumar Attkan
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Anil Panghal
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Vijay Kumar Singh
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
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16
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Vieira IMM, Santos BLP, Silva LS, Ramos LC, de Souza RR, Ruzene DS, Silva DP. Potential of pineapple peel in the alternative composition of culture media for biosurfactant production. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:68957-68971. [PMID: 34282549 DOI: 10.1007/s11356-021-15393-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
The large pineapple's consumption and processing have generated a massive amount of waste yearly, which requires adequate treatment measures to avoid damages to the environment. Pineapple peel is one of the main residues obtained from this fruit and a promising strategy to take advantage of its potential is using it for biosurfactant production due to the peel's rich composition in fermentable sugars and nutrients, such as potassium and magnesium that favor the Bacillus subtilis growth and biosurfactant excretion as well. The current research performed a central composite design (CCD) with four independent variables (glucose, pineapple peel, potassium, and magnesium), evaluating substrates' influence on the surface tension reduction rate (STRR) and the emulsification index (EI24). The results indicated that pineapple peel has the necessary potential to act as a partial substitute for glucose and salt nutrients, minimizing the costs of supplementing with exogenous minerals. The highest surface tension reduction rate (57.744%) was obtained at 2.18% glucose (w/v); 14.67% pineapple peel (v/v); 2.38 g/L KH2PO4; and 0.15 g/L MgSO4.7H2O; whereas to obtain the maximum predicted value for EI24 (61.92%) the medium was composed by 2.24% glucose (w/v); 12.63% pineapple peel (v/v); 2.53 g/L KH2PO4; and 0.29 g/L MgSO4.7H2O.
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Affiliation(s)
- Isabela Maria Monteiro Vieira
- Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
| | - Brenda Lohanny Passos Santos
- Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
| | - Lucas Santos Silva
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
| | - Larissa Castor Ramos
- Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
| | - Roberto Rodrigues de Souza
- Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
| | - Denise Santos Ruzene
- Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil
- Graduate Program in Biotechnology, Federal University of Sergipe, Rodovia Marechal Rondon, s/n, Jardim Rosa Elze, São Cristóvão, SE, 49100-000, Brazil
| | - Daniel Pereira Silva
- Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil.
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, 49100-000, Brazil.
- Graduate Program in Biotechnology, Federal University of Sergipe, Rodovia Marechal Rondon, s/n, Jardim Rosa Elze, São Cristóvão, SE, 49100-000, Brazil.
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17
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Vieira IMM, Santos BLP, Ruzene DS, Silva DP. An overview of current research and developments in biosurfactants. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.05.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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Kong S, Shen C, Li Y, Meng Q. Rhamnolipids Sustain Unchanged Surface Activities during Decomposition in Alkaline Solutions. ACS OMEGA 2021; 6:15750-15755. [PMID: 34179619 PMCID: PMC8223203 DOI: 10.1021/acsomega.1c01099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/21/2021] [Indexed: 06/13/2023]
Abstract
Biosurfactant rhamnolipids (RLs) have gained global interests owing to their fully green properties, potentially wide applications in diverse fields, as well as high stabilities under various harsh conditions. Nevertheless, we doubted the reputed stability of RLs in considering their natural structure of carbohydrate heads and lipid tails. This study, for the first time, systematically investigated the stability of RLs at varying temperatures and pH. As found, the concentration of RLs in an aqueous solution was significantly reduced when the pH was over 11 at room temperature, and this was much more severe with the increase in temperature and preservation time. According to the high-performance liquid chromatography-mass spectrometry (HPLC-MS) analysis, degradation yielded other RL congeners, 3-hydroxy fatty acids, rhamnose, methyl furfural, and organic acids. The newly generated RL congeners and fatty acids still possessed equivalent surface activities in reducing the surface tension of the aqueous solution, well explaining the previously claimed high stability of RLs. The finding will be greatly valued for commercially developing the industrial applications of RLs and other biosurfactants.
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19
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Nunes HMAR, Vieira IMM, Santos BLP, Silva DP, Ruzene DS. Biosurfactants produced from corncob: a bibliometric perspective of a renewable and promising substrate. Prep Biochem Biotechnol 2021; 52:123-134. [PMID: 34081569 DOI: 10.1080/10826068.2021.1929319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The reuse of agro-industrial waste has been a recurring issue since the 20th century. With a composition rich in carbohydrates and because of the massive amount of residue produced daily all over the world, corncob became a low-cost and suitable substrate to produce high added-value compounds. Biosurfactants are bioproducts of versatile applications due to their chemical structure with hydrophilic and hydrophobic regions. The current work performed a bibliometric analysis to identify research related to the synthesis of biosurfactants using corncob as substrate. Despite the high availability of corncobs, only nine articles were found in Scopus and Web of Science using different pretreatment processes and microorganisms. After an initial screening, data regarding research organizations, scientific journals, citations, countries, institutions, and keywords were analyzed. Results indicated that corncobs were also used to produce enzymes, adsorbents, activated carbon, and furfural. The presented evaluation updated the status of art, identifying a serious need for more research, especially because of corncob's high potential to provide fermentable sugars and the wide range of variables influencing fermentation processes that still need to be studied. A future association of this low-cost substrate with other methods can result in a promising scenario for technology transference.
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Affiliation(s)
| | - Isabela Maria Monteiro Vieira
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, Brazil.,Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Brenda Lohanny Passos Santos
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, Brazil.,Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Daniel Pereira Silva
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, Brazil.,Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Denise Santos Ruzene
- Center for Exact Sciences and Technology, Federal University of Sergipe, São Cristóvão, SE, Brazil.,Northeastern Biotechnology Network, Federal University of Sergipe, São Cristóvão, SE, Brazil
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20
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Baskaran SM, Zakaria MR, Mukhlis Ahmad Sabri AS, Mohamed MS, Wasoh H, Toshinari M, Hassan MA, Banat IM. Valorization of biodiesel side stream waste glycerol for rhamnolipids production by Pseudomonas aeruginosa RS6. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 276:116742. [PMID: 33621735 DOI: 10.1016/j.envpol.2021.116742] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 02/06/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Biodiesel side stream waste glycerol was identified as a cheap carbon source for rhamnolipids (RLs) production which at the same time could improve the management of waste. The present study aimed to produce RLs by using Pseudomonas aeruginosa RS6 utilizing waste glycerol as a substrate and to evaluate their physico-chemicals properties. Fermentation conditions such as temperature, initial medium pH, waste glycerol concentration, nitrogen sources and concentrations resulted in different compositions of the mono- and di-RLs produced. The maximum RLs production of 2.73 g/L was obtained when P. aeruginosa RS6 was grown in a basal salt medium supplemented with 1% waste glycerol and 0.2 M sodium nitrate at 35 °C and pH 6.5. At optimal fermentation conditions, the emulsification index (E24) values of cooking oil, diesel oil, benzene, olive oil, petroleum, and kerosene were all above E24=50%. The surface tension reduction obtained from 72.13 mN/m to 29.4-30.4 mN/m was better than the surface activity of some chemical-based surfactants. The RLs produced possessed antimicrobial activities against Gram-negative and Gram-positive bacteria with values ranging from 37% to 77% of growth inhibition when 1 mg/mL of RLs was used. Concentrations of RLs below 1500 μg/mL did not induce phytotoxicity effects on the tested seeds (Vigna radiata) compared to the chemical-based- surfactant, SDS. Furthermore, RLs tested on zebrafish (Danio rerio) embryos only exhibited low acute toxicity with an LC50 value of 72.97 μg/mL at 48 h of exposure suggesting a green and eco-biochemical worthy of future applications to replace chemical-based surfactants.
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Affiliation(s)
- Shobanah Menon Baskaran
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Mohd Rafein Zakaria
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Laboratory of Processing and Product Development, Institute of Plantation Studies, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
| | - Ahmad Syafiq Mukhlis Ahmad Sabri
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Mohd Shamzi Mohamed
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Helmi Wasoh
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Maeda Toshinari
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu, 808-0196, Japan
| | - Mohd Ali Hassan
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Laboratory of Processing and Product Development, Institute of Plantation Studies, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Ibrahim M Banat
- School of Biomedical Sciences, Faculty of Life and Health Sciences, University of Ulster, Coleraine BT52 1SA, Northern Ireland, UK
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21
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Rodrigues AI, Gudiña EJ, Abrunhosa L, Malheiro AR, Fernandes R, Teixeira JA, Rodrigues LR. Rhamnolipids inhibit aflatoxins production in Aspergillus flavus by causing structural damages in the fungal hyphae and down-regulating the expression of their biosynthetic genes. Int J Food Microbiol 2021; 348:109207. [PMID: 33930837 DOI: 10.1016/j.ijfoodmicro.2021.109207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 04/05/2021] [Accepted: 04/16/2021] [Indexed: 11/28/2022]
Abstract
Aflatoxins are hepatotoxic and carcinogenic fungal secondary metabolites that usually contaminate crops and represent a serious health hazard for humans and animals worldwide. In this work, the effect of rhamnolipids (RLs) produced by Pseudomonas aeruginosa #112 on the growth and aflatoxins production by Aspergillus flavus MUM 17.14 was studied in vitro. At concentrations between 45 and 1500 mg/L, RLs reduced the mycelial growth of A. flavus by 23-40% and the production of aflatoxins by 93.9-99.5%. Purified mono-RLs and di-RLs exhibited a similar inhibitory activity on fungal growth. However, the RL mixture had a stronger inhibitory effect on aflatoxins production at concentrations up to 190 mg/L, probably due to a synergistic effect resulting from the combination of both congeners. Using transmission electron microscopy, it was demonstrated that RLs damaged the cell wall and the cytoplasmic membrane of the fungus, leading to the loss of intracellular content. This disruptive phenomenon explains the growth inhibition observed. Furthermore, RLs down-regulated the expression of genes aflC, aflE, aflP and aflQ involved in the aflatoxins biosynthetic pathway (6.4, 44.3, 38.1 and 2.0-fold, respectively), which is in agreement with the almost complete inhibition of aflatoxins production. Overall, the results herein gathered demonstrate for the first time that RLs could be used against aflatoxigenic fungi to attenuate the production of aflatoxins, and unraveled some of their mechanisms of action.
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Affiliation(s)
- Ana I Rodrigues
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Eduardo J Gudiña
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
| | - Luís Abrunhosa
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Ana R Malheiro
- Instituto de Investigação e Inovação em Saúde (I3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Rui Fernandes
- Instituto de Investigação e Inovação em Saúde (I3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - José A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Lígia R Rodrigues
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
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22
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Gong Z, Yang G, Che C, Liu J, Si M, He Q. Foaming of rhamnolipids fermentation: impact factors and fermentation strategies. Microb Cell Fact 2021; 20:77. [PMID: 33781264 PMCID: PMC8008553 DOI: 10.1186/s12934-021-01516-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 01/11/2021] [Indexed: 11/25/2022] Open
Abstract
Rhamnolipids have recently attracted considerable attentions because of their excellent biosurfactant performance and potential applications in agriculture, environment, biomedicine, etc., but severe foaming causes the high cost of production, restraining their commercial production and applications. To reduce or eliminate the foaming, numerous explorations have been focused on foaming factors and fermentation strategies, but a systematic summary and discussion are still lacking. Additionally, although these studies have not broken through the bottleneck of foaming, they are conducive to understanding the foaming mechanism and developing more effective rhamnolipids production strategies. Therefore, this review focuses on the effects of fermentation components and control conditions on foaming behavior and fermentation strategies responded to the severe foaming in rhamnolipids fermentation and systematically summarizes 6 impact factors and 9 fermentation strategies. Furthermore, the potentialities of 9 fermentation strategies for large-scale production are discussed and some further strategies are suggested. We hope this review can further facilitate the understanding of foaming factors and fermentation strategies as well as conducive to developing the more effective large-scale production strategies to accelerate the commercial production process of rhamnolipids.![]()
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Affiliation(s)
- Zhijin Gong
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Ge Yang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Chengchuan Che
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Jinfeng Liu
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Meiru Si
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Qiuhong He
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China.
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23
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Phulpoto IA, Wang Y, Qazi MA, Hu B, Ndayisenga F, Yu Z. Bioprospecting of rhamnolipids production and optimization by an oil-degrading Pseudomonas sp. S2WE isolated from freshwater lake. BIORESOURCE TECHNOLOGY 2021; 323:124601. [PMID: 33385627 DOI: 10.1016/j.biortech.2020.124601] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
The present study revealed biosurfactants production by a novel oil-degrading Pseudomonas sp. S2WE isolated from hydrocarbon enriched water sample, where the genus Pseudomonas (48.65%) was dominated amongst several other genera. Biosurfactants produced by this strain showed the great potential for surface tension reduction (SFT) and emulsification. The extracted crude biosurfactants were characterized using ultra-high-performance liquid chromatography-Mass Spectrometry (UHPLC-MS) and identified various mono-and di-rhamnolipids homologs from the mixture. Moreover, the lowest SFT 33.05 ± 0.1 mN/m and highest emulsification of 60.65 ± 0.64% were achieved from rhamnolipids produced from glycerol with urea. Compared to initial screening, almost (>87%) higher emulsification was observed. In addition, the biosurfactants were found highly stable at different environmental factors i.e. temperature (4 °C-121 °C), pH (3-10) and NaCl conc. (1-9%). The high stable rhamnolipids produced by new Pseudomonas sp. S2WE in this study could widely be used in enormous industrial as well as environmental applications.
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Affiliation(s)
- Irfan Ali Phulpoto
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, PR China
| | - Yanfen Wang
- Yanshan Earth Critical Zone and Surface Fluxes Research Station, Chinese Academy of Sciences, No. 380 Huaibei Town, Huairou District, Beijing 101408, PR China
| | - Muneer Ahmed Qazi
- Institute of Microbiology, Faculty of Natural Science, Shah Abdul Latif University, Khairpur Mir's 66020, Sindh, Pakistan
| | - Bowen Hu
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, PR China
| | - Fabrice Ndayisenga
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, PR China
| | - Zhisheng Yu
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, PR China; RCEES-IMCAS-UCAS Joint-Lab of Microbial Technology for Environmental Science, Beijing 100085, China.
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24
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Kee SH, Chiongson JBV, Saludes JP, Vigneswari S, Ramakrishna S, Bhubalan K. Bioconversion of agro-industry sourced biowaste into biomaterials via microbial factories - A viable domain of circular economy. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 271:116311. [PMID: 33383425 DOI: 10.1016/j.envpol.2020.116311] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/25/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
Global increase in demand for food supply has resulted in surplus generation of wastes. What was once considered wastes, has now become a resource. Studies were carried out on the conversion of biowastes into wealth using methods such as extraction, incineration and microbial intervention. Agro-industry biowastes are promising sources of carbon for microbial fermentation to be transformed into value-added products. In the era of circular economy, the goal is to establish an economic system which aims to eliminate waste and ensure continual use of resources in a close-loop cycle. Biowaste collection is technically and economically practicable, hence it serves as a renewable carbon feedstock. Biowastes are commonly biotransformed into value-added materials such as bioethanol, bioplastics, biofuels, biohydrogen, biobutanol and biogas. This review reveals the recent developments on microbial transformation of biowastes into biotechnologically important products. This approach addresses measures taken globally to valorize waste to achieve low carbon economy. The sustainable use of these renewable resources is a positive approach towards waste management and promoting circular economy.
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Affiliation(s)
- Seng Hon Kee
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Justin Brian V Chiongson
- Department of Chemistry, College of Liberal Arts, Sciences, and Education, University of San Agustin, Iloilo City, Philippines
| | - Jonel P Saludes
- Department of Chemistry, College of Liberal Arts, Sciences, and Education, University of San Agustin, Iloilo City, Philippines; Center for Natural Drug Discovery and Development (CND3), University of San Agustin, Iloilo City, Philippines; Balik Scientist Program, Philippine Council for Health Research and Development, Department of Science and Technology, Taguig, Philippines
| | - Sevakumaran Vigneswari
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, 117581, Singapore
| | - Kesaven Bhubalan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Malaysian Institute of Pharmaceuticals and Nutraceuticals, National Institutes of Biotechnology Malaysia, 11700, Penang, Malaysia.
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25
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Eslami P, Hajfarajollah H, Bazsefidpar S. Recent advancements in the production of rhamnolipid biosurfactants by Pseudomonas aeruginosa. RSC Adv 2020; 10:34014-34032. [PMID: 35519061 PMCID: PMC9056861 DOI: 10.1039/d0ra04953k] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/24/2020] [Indexed: 01/10/2023] Open
Abstract
Rhamnolipid (RL) biosurfactant which is produced by Pseudomonas species is one of the most effective surface-active agents investigated in the literature. Over the years, many efforts have been made and an array of techniques has been developed for the isolation of RL produced strains as well as RL homolog characterization. Reports show that RL productivity by the best-known producer, Pseudomonas aeruginosa, is very diverse, from less than 1 gr/l to more than 200 g L-1. There are some major parameters that can affect RL productivity. These are culture conditions, medium composition, the mode of operation (batch, fed-batch and continuous), bioengineering/gene manipulation and finally extraction methods. The present paper seeks to provide a comprehensive overview on the production of rhamnolipid biosurfactant by different species of Pseudomonas bacteria. In addition, we have extensively reviewed their potential for possible future applications.
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Affiliation(s)
- Parisa Eslami
- Amirkabir University of Technology, Chemical Engineering Department Iran
| | - Hamidreza Hajfarajollah
- Amirkabir University of Technology, Chemical Engineering Department Iran
- Chemistry and Chemical Engineering Research Center of Iran, Chemical Engineering Department Iran +98 2122734406
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26
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Crouzet J, Arguelles-Arias A, Dhondt-Cordelier S, Cordelier S, Pršić J, Hoff G, Mazeyrat-Gourbeyre F, Baillieul F, Clément C, Ongena M, Dorey S. Biosurfactants in Plant Protection Against Diseases: Rhamnolipids and Lipopeptides Case Study. Front Bioeng Biotechnol 2020; 8:1014. [PMID: 33015005 PMCID: PMC7505919 DOI: 10.3389/fbioe.2020.01014] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 08/03/2020] [Indexed: 12/17/2022] Open
Abstract
Biosurfactants are amphiphilic surface-active molecules that are produced by a variety of microorganisms including fungi and bacteria. Pseudomonas, Burkholderia, and Bacillus species are known to secrete rhamnolipids and lipopeptides that are used in a wide range of industrial applications. Recently, these compounds have been studied in a context of plant-microbe interactions. This mini-review describes the direct antimicrobial activities of these compounds against plant pathogens. We also provide the current knowledge on how rhamnolipids and lipopeptides stimulate the plant immune system leading to plant resistance to phytopathogens. Given their low toxicity, high biodegradability and ecological acceptance, we discuss the possible role of these biosurfactants as alternative strategies to reduce or even replace pesticide use in agriculture.
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Affiliation(s)
- Jérôme Crouzet
- Unité RIBP EA 4707, SFR Condorcet FR CNRS 3417, University of Reims Champagne-Ardenne, Reims, France
| | - Anthony Arguelles-Arias
- MiPI laboratory, Gembloux Agro-Bio Tech, SFR Condorcet FR CNRS 3417, University of LieÌge, Gembloux, Belgium
| | - Sandrine Dhondt-Cordelier
- Unité RIBP EA 4707, SFR Condorcet FR CNRS 3417, University of Reims Champagne-Ardenne, Reims, France
| | - Sylvain Cordelier
- Unité RIBP EA 4707, SFR Condorcet FR CNRS 3417, University of Reims Champagne-Ardenne, Reims, France
| | - Jelena Pršić
- MiPI laboratory, Gembloux Agro-Bio Tech, SFR Condorcet FR CNRS 3417, University of LieÌge, Gembloux, Belgium
| | - Gregory Hoff
- MiPI laboratory, Gembloux Agro-Bio Tech, SFR Condorcet FR CNRS 3417, University of LieÌge, Gembloux, Belgium
| | | | - Fabienne Baillieul
- Unité RIBP EA 4707, SFR Condorcet FR CNRS 3417, University of Reims Champagne-Ardenne, Reims, France
| | - Christophe Clément
- Unité RIBP EA 4707, SFR Condorcet FR CNRS 3417, University of Reims Champagne-Ardenne, Reims, France
| | - Marc Ongena
- MiPI laboratory, Gembloux Agro-Bio Tech, SFR Condorcet FR CNRS 3417, University of LieÌge, Gembloux, Belgium
| | - Stéphan Dorey
- Unité RIBP EA 4707, SFR Condorcet FR CNRS 3417, University of Reims Champagne-Ardenne, Reims, France
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de Andrade Teixeira Fernandes N, de Souza AC, Simões LA, Ferreira Dos Reis GM, Souza KT, Schwan RF, Dias DR. Eco-friendly biosurfactant from Wickerhamomyces anomalus CCMA 0358 as larvicidal and antimicrobial. Microbiol Res 2020; 241:126571. [PMID: 32818706 DOI: 10.1016/j.micres.2020.126571] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/27/2020] [Accepted: 07/30/2020] [Indexed: 11/16/2022]
Abstract
Kitchen waste oil (KWO) was evaluated as a substrate for production of biosurfactant by Wickerhamomyces anomalus CCMA 0358 and was tested against Aedes aegypti larvae, the mosquito causing neglected diseases, such as dengue fever, Zika, and Chikungunya, achieving 100 % mortality in the lowest concentration (6.25 %) evaluated in 24 h. Furthermore, possible applications of this compound were evaluated as antibacterial, antiadhesive, and antifungal. At a concentration of 50 %, the biosurfactant was found to inhibit the growth of Bacillus cereus, showing high inhibitions levels against Salmonella Enteritidis, Staphylococcus aureus, and Escherichia coli. The antifungal activity was evaluated against Aspergillus, Cercospora, Colletotrichum, and Fusarium, obtaining results of up to 95 % inhibition. In addition to these promising results, the yeast W. anomalus produced the biosurfactant from an inexpensive substrate, which increases the possibility of its application in several industries owing to the low cost involved.
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Affiliation(s)
| | - Angélica Cristina de Souza
- Department of Biology, Federal University of Lavras (UFLA), Campus Universitário, 37.200-000, Lavras, MG, Brazil
| | - Luara Aparecida Simões
- Department of Biology, Federal University of Lavras (UFLA), Campus Universitário, 37.200-000, Lavras, MG, Brazil
| | | | - Karla Teixeira Souza
- Department of Biology, Federal University of Lavras (UFLA), Campus Universitário, 37.200-000, Lavras, MG, Brazil
| | - Rosane Freitas Schwan
- Department of Biology, Federal University of Lavras (UFLA), Campus Universitário, 37.200-000, Lavras, MG, Brazil
| | - Disney Ribeiro Dias
- Department of Food Science, Federal University of Lavras (UFLA), Campus Universitário, 37.200-000, Lavras, MG, Brazil.
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Mwaurah PW, Kumar S, Kumar N, Panghal A, Attkan AK, Singh VK, Garg MK. Physicochemical characteristics, bioactive compounds and industrial applications of mango kernel and its products: A review. Compr Rev Food Sci Food Saf 2020; 19:2421-2446. [DOI: 10.1111/1541-4337.12598] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/01/2020] [Accepted: 06/16/2020] [Indexed: 12/27/2022]
Affiliation(s)
- Peter Waboi Mwaurah
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Sunil Kumar
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Nitin Kumar
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Anil Panghal
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Arun Kumar Attkan
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Vijay Kumar Singh
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Mukesh Kumar Garg
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
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29
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Jiang J, Zu Y, Li X, Meng Q, Long X. Recent progress towards industrial rhamnolipids fermentation: Process optimization and foam control. BIORESOURCE TECHNOLOGY 2020; 298:122394. [PMID: 31757615 DOI: 10.1016/j.biortech.2019.122394] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 05/20/2023]
Abstract
The global market for rhamnolipids production holds great promise, and is in need of an economically viable mass-production scheme. Accordingly, several strategies have been employed to improve the efficiency of rhamnolipid production in the past few decades. Currently, rhamnolipids can be produced by Pseudomonas aeruginosa at a high yield (over 70 g/L) when vegetable oil is used as the carbon source under optimized fed-batch cultivations. However, severe foaming during rhamnolipid fermentation inhibits scaling-up and production efficiency. Stop valve was found to effective break the extremely stable rhamnolipids foams during fermentation, and production efficiency of rhamnolipids was highly improved, while its scale-up mechanism needs further study. In addition, the combination of both chemical and mechanical approaches is likely to be more efficiently resolving the foam problem existed in rhamnolipids fermentation than either chemical or mechanical methods alone.
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Affiliation(s)
- Jingjing Jiang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, PR China
| | - Yunqiao Zu
- School of Chemical Engineering, University of New South Wales, Sydney, Australia
| | - Xiaoyi Li
- Hangzhou Greenda Electronic Materials Co. Ltd., Hangzhou, PR China
| | - Qin Meng
- School of Chemical and Biological Engineering, Zhejiang University, Hangzhou, PR China
| | - Xuwei Long
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, PR China.
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30
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Jahan R, Bodratti AM, Tsianou M, Alexandridis P. Biosurfactants, natural alternatives to synthetic surfactants: Physicochemical properties and applications. Adv Colloid Interface Sci 2020; 275:102061. [PMID: 31767119 DOI: 10.1016/j.cis.2019.102061] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/31/2019] [Accepted: 11/03/2019] [Indexed: 12/29/2022]
Abstract
Biosurfactants comprise a wide array of amphiphilic molecules synthesized by plants, animals, and microbes. The synthesis route dictates their molecular characteristics, leading to broad structural diversity and ensuing functional properties. We focus here on low molecular weight (LMW) and high molecular weight (HMW) biosurfactants of microbial origin. These are environmentally safe and biodegradable, making them attractive candidates for applications spanning cosmetics to oil recovery. Biosurfactants spontaneously adsorb at various interfaces and self-assemble in aqueous solution, resulting in useful physicochemical properties such as decreased surface and interfacial tension, low critical micellization concentrations (CMCs), and ability to solubilize hydrophobic compounds. This review highlights the relationships between biosurfactant molecular composition, structure, and their interfacial behavior. It also describes how environmental factors such as temperature, pH, and ionic strength can impact physicochemical properties and self-assembly behavior of biosurfactant-containing solutions and dispersions. Comparison between biosurfactants and their synthetic counterparts are drawn to illustrate differences in their structure-property relationships and potential benefits. Knowledge of biosurfactant properties organized along these lines is useful for those seeking to formulate so-called green or natural products with novel and useful properties.
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31
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Mwaurah PW, Kumar S, Kumar N, Attkan AK, Panghal A, Singh VK, Garg MK. Novel oil extraction technologies: Process conditions, quality parameters, and optimization. Compr Rev Food Sci Food Saf 2019; 19:3-20. [DOI: 10.1111/1541-4337.12507] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 10/07/2019] [Accepted: 10/15/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Peter Waboi Mwaurah
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Sunil Kumar
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Nitin Kumar
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Arun Kumar Attkan
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Anil Panghal
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Vijay Kumar Singh
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Mukesh Kumar Garg
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
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32
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do Nascimento Silva J, Mascarin GM, de Paula Vieira de Castro R, Castilho LR, Freire DM. Novel combination of a biosurfactant with entomopathogenic fungi enhances efficacy against Bemisia whitefly. PEST MANAGEMENT SCIENCE 2019; 75:2882-2891. [PMID: 31038255 DOI: 10.1002/ps.5458] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 04/19/2019] [Accepted: 04/24/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Microbial surfactants are multifunctional surface-active molecules that have been overlooked in formulating microbial biopesticides. We report a novel approach using the biosurfactant rhamnolipid (RML) against the destructive cosmopolitan insect pest Bemisia tabaci, as well as the combined action of RML with aerial conidia of two entomopathogenic fungi, Cordyceps javanica and Beauveria bassiana. RML was also tested as a suspension agent to improve the recovery rate of conidia from solid substrate for fungal preparations. RESULTS The recovery rate of conidia increased dramatically (two to five times) with RML compared with a standard surfactant (Tween 80). Spraying solutions of 0.075% and 0.1% (w/v) RML on B. tabaci third instar nymphs induced 100% mortality within 4 days. Conidial suspensions at 5 × 106 conidia/mL amended with RML at 0.01% or 0.05% markedly increased nymphal mortalities and considerably reduced LC50 . Conidial suspensions of B. bassiana with 0.05% RML added were more effective against whitefly nymphs (87.3% mortality) than C. javanica + RML (51.4% mortality). CONCLUSION Our results show that this bacterium-based RML improved the recovery rate of hydrophobic conidia, and that mixtures of RML with fungal spore suspensions increased their insecticidal activity. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | | | | | - Leda R Castilho
- COPPE, Chemical Engineering Program, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Denise Mg Freire
- Department of Biochemistry, Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Rahimi K, Lotfabad TB, Jabeen F, Mohammad Ganji S. Cytotoxic effects of mono- and di-rhamnolipids from Pseudomonas aeruginosa MR01 on MCF-7 human breast cancer cells. Colloids Surf B Biointerfaces 2019; 181:943-952. [PMID: 31382344 DOI: 10.1016/j.colsurfb.2019.06.058] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 05/11/2019] [Accepted: 06/01/2019] [Indexed: 12/21/2022]
Abstract
Rhamnolipids produced by P. aeruginosa MR01 were fractionated into mono- and di-rhamnolipids, and their dominant congeners, Rha-C10-C10 and Rha-Rha-C10-C10, were shown by mass spectrometry. Minimum surface tensions and critical micelle concentrations (CMC) were determined as "≃34 mN/m; ≃26.17 mg/l;" and "≃29 mN/m; ≃29.63 mg/l" for mono- and di-rhamnolipids, respectively. Spectrophotometry measurements provided a close approximation of CMC. Contact angle and diameter of wet area were determined for rhamnolipid-containing drops on hydrophobic paper to display their capability for alteration of surface wettability. Wet area measurement is a simple, reliable method not requiring a Drop Shape Analyzer. Cell viabilities determined by MTT assay showed a decline in a dose-dependent manner and estimated IC50 values were 25.87 μg/ml and 31.00 μg/ml for mono- and di-rhamnolipids treating MCF-7 cells for 48 h. Morphological observations using the inverted phase-contrast microscopy and fluorescence microscopy via Hoechst staining revealed the apoptotic characteristics in treated MCF-7 cells. The semi-quantitative RT-PCR method demonstrated that expression of the p53 gene in mRNA levels significantly (P < 0.05) increased when treated with 30 μg/ml of each rhamnolipid compound for 12 h. It can be concluded that rhamnolipids derived from MR01 show significant anticancer potential against MCF-7 cell line and should be further investigated as natural, therapeutic anti-tumor agents.
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Affiliation(s)
- Kobra Rahimi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Tayebe Bagheri Lotfabad
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
| | - Farhat Jabeen
- Department of Zoology, Government College, University of Faisalabad, Pakistan
| | - Shahla Mohammad Ganji
- Department of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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34
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Pérez-Armendáriz B, Cal-y-Mayor-Luna C, El-Kassis EG, Ortega-Martínez LD. Use of waste canola oil as a low-cost substrate for rhamnolipid production using Pseudomonas aeruginosa. AMB Express 2019; 9:61. [PMID: 31062183 PMCID: PMC6502917 DOI: 10.1186/s13568-019-0784-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/25/2019] [Indexed: 01/22/2023] Open
Abstract
Rhamnolipids are glycolipid biosurfactants that are primarily produced by Pseudomonas aeruginosa that have gained a great deal of interest for their numerous industrial applications and environmentally friendly properties. In this study, we explored the potential of waste canola oil as a low-cost and environmentally friendly substrate for the production of rhamnolipids by P. aeruginosa. Four different 23 full factorial designs were used to assess the effect of three independent factors on rhamnolipid production, including carbon source (canola oil and waste canola oil), nitrogen source [(NH4)2SO4 and NaNO3] and production time (7 and 14 days). The highest observed yield was 3585.31 ± 66.24 mg/L when P. aeruginosa was cultured for 14 days with 3% v/v waste canola oil and 4 g/L of NaNO3. The nitrogen source proved to be a crucial factor, as the use of NaNO3 rather than (NH4)2SO4 led to a 30-fold increase in production yield. The observed yield when waste canola oil was used was similar to, and even slightly higher than, that obtained using canola oil. Our results showed that waste canola oil has great potential for use as a carbon source for rhamnolipid production by P. aeruginosa, thus paving the way for the development of a low-cost, efficient, and environmentally friendly bioprocess for the production of rhamnolipids.
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Senthil Balan S, Ganesh Kumar C, Jayalakshmi S. Physicochemical, structural and biological evaluation of Cybersan (trigalactomargarate), a new glycolipid biosurfactant produced by a marine yeast, Cyberlindnera saturnus strain SBPN-27. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.02.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Palyzová A, Svobodová K, Sokolová L, Novák J, Novotný Č. Metabolic profiling of Fusarium oxysporum f. sp. conglutinans race 2 in dual cultures with biocontrol agents Bacillus amyloliquefaciens, Pseudomonas aeruginosa, and Trichoderma harzianum. Folia Microbiol (Praha) 2019; 64:779-787. [PMID: 30746611 DOI: 10.1007/s12223-019-00690-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/05/2019] [Indexed: 11/26/2022]
Abstract
There are increasing efforts to identify biocontrol-active microbial metabolites in order to improve strategies for biocontrol of phytopathogens. In this work, Fusarium oxysporum f. sp. conglutinans was confronted with three different biocontrol agents: Trichoderma harzianum, Bacillus amyloliquefaciens, and Pseudomonas aeruginosa in dual culture bioassays. Metabolites produced during the microbial interactions were screened by a matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). T. harzianum exhibited the strongest inhibition of growth of F. oxysporum resulting in overlay of the pathogen colony with its mycelium. Recorded metabolite profiles suggested a direct attack of F. oxysporum mycelium by T. harzianum and B. amyloliquefaciens by means of membrane-attacking peptaibols and a set of antimicrobial lipopeptides and siderophores, respectively. The direct mode of the biocontrol activity of T. harzianum and B. amyloliquefaciens corresponded to their ability to suppress F. oxysporum production of mycotoxin beauvericin suggesting that this ability is not specific only for Trichoderma species. In the case of P. aeruginosa, siderophores pyoverdine E/D and two rhamnolipids were produced as major bacterial metabolites; the rhamnolipid production was blocked by F. oxysporum. The results showed that this type of biocontrol activity was the least effective against F. oxysporum. The effective application of MALDI-MS profiling to the screening of nonvolatile microbial metabolites produced during the interaction of the phytopathogen and the biocontrol microorganisms was demonstrated.
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Affiliation(s)
- Andrea Palyzová
- Institute of Microbiology of the CAS, v.v.i., Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Kateřina Svobodová
- Institute of Microbiology of the CAS, v.v.i., Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Lucie Sokolová
- Institute of Microbiology of the CAS, v.v.i., Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Jiří Novák
- Institute of Microbiology of the CAS, v.v.i., Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Čeněk Novotný
- Institute of Microbiology of the CAS, v.v.i., Vídeňská 1083, 14220, Prague 4, Czech Republic.
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37
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Khademolhosseini R, Jafari A, Mousavi SM, Hajfarajollah H, Noghabi KA, Manteghian M. Physicochemical characterization and optimization of glycolipid biosurfactant production by a native strain ofPseudomonas aeruginosaHAK01 and its performance evaluation for the MEOR process. RSC Adv 2019; 9:7932-7947. [PMID: 35521199 PMCID: PMC9061253 DOI: 10.1039/c8ra10087j] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 02/22/2019] [Indexed: 12/02/2022] Open
Abstract
In this study, a glycolipid type of biosurfactant (BS) was produced, its characteristics were evaluated and several flooding tests were conducted in a micromodel to investigate its potential for enhancing oil recovery. A rhamnolipid BS producer strain was identified as a bacterium belonging to the genus Pseudomonas aeruginosa. This BS showed good stability at temperatures of 40–121 °C, pH values of 3–10 and salinity up to 10% (w/v) NaCl which is important in Microbial Enhanced Oil Recovery (MEOR). The rhamnolipid decreased the surface tension of water from 72 to 28.1 mN m−1 with a critical micelle concentration of 120 ppm. Thin layer chromatography, FTIR spectroscopy, 1H-NMR and 13C-NMR spectroscopy revealed the glycolipid structure of the BS. Response surface methodology was applied to optimize BS production. Several micromodel flooding tests were conducted to study the capability of the produced rhamnolipid in enhanced oil recovery for the first time. An oil recovery factor of 43% was obtained at 120 ppm of BS solution whereas the recovery factor obtained for water flooding was 16%. Contact angle measurements showed that BS solutions altered the wettability of a glass surface from oil wet to a strongly water wet state. Also the results illustrated that all BS solutions were impressive in microbial enhanced oil recovery (MEOR) and using the produced BS a considerable amount of trapped oil can be extracted due to interfacial tension reduction, wettability alteration towards water wet conditions and improving the mobility ratio. In this study, a glycolipid type of biosurfactant (BS) was produced, its characteristics were evaluated and several flooding tests were conducted in a micromodel to investigate its potential for enhancing oil recovery.![]()
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Affiliation(s)
| | - Arezou Jafari
- Faculty of Chemical Engineering
- Tarbiat Modares University
- Tehran
- Iran
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38
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Bazsefidpar S, Mokhtarani B, Panahi R, Hajfarajollah H. Overproduction of rhamnolipid by fed-batch cultivation of Pseudomonas aeruginosa in a lab-scale fermenter under tight DO control. Biodegradation 2019; 30:59-69. [PMID: 30600422 DOI: 10.1007/s10532-018-09866-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 12/22/2018] [Indexed: 10/27/2022]
Abstract
Rhamnolipids are one of the most well-known classes of biosurfactants having wide applications in various industries due to low toxicity, high biodegradability, and environmentally friendly. Dissolved oxygen (DO) concentration has the crucial effect on rhamnolipids production, particularly through fed-batch cultivation. In this study, the effect of different levels of DO concentrations on rhamnolipid production by Pseudomonas aeruginosa in both batch and fed-batch fermentation was investigated in a lab-scale fermenter under precise DO control. A maximal rhamnolipid production of 22.5 g/l was obtained at a DO concentration of 40% in batch fermentation. In order to achieve the high rhamnolipid production, a fed-batch operation under tight DO control of 40% was conducted. As a result, the overall rhamnolipid production and productivity reached to 240 g/l and 0.9 (g/l h), corresponding to a 10.7 and 4.8-fold improvement compared to the batch experiments. The high level of rhamnolipid production via the fed-batch cultivation can be attributed to both DO concentration and the feeding strategy. This achievement is promising for the production of rhamnolipid in industrial scale.
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Affiliation(s)
- Shayesteh Bazsefidpar
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Babak Mokhtarani
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran.
| | - Reza Panahi
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Hamidreza Hajfarajollah
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
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Das AJ, Kumar R. Utilization of agro-industrial waste for biosurfactant production under submerged fermentation and its application in oil recovery from sand matrix. BIORESOURCE TECHNOLOGY 2018; 260:233-240. [PMID: 29626783 DOI: 10.1016/j.biortech.2018.03.093] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 03/18/2018] [Accepted: 03/19/2018] [Indexed: 06/08/2023]
Abstract
This study reports biosurfactant production by Pseudomonas azotoformans AJ15 under submerged fermentation via utilizing the agro-industrial wastes (bagasse and potato peels). The extracted biosurfactant was characterized for its classification (nature, group, and class) and stability against environmental stresses. Further, the biosurfactant was employed to explore its oil recovery efficiency from the sand matrix with 2000 ppm salt concentration. Results revealed that substrates developed by mixing both the agro-industrial wastes account for high yield of biosurfactant. The subsequent experimental studies demonstrated that the biosurfactant might belong to glycolipid group and rhamnolipid class. Moreover, the biosurfactant was stable at a high temperature of 90 °C and enable to persist its activity in the high salt concentration of 6% and varying pH. The biosurfactant was found to be effective in recovering up to 36.56% of trapped oil under saline condition.
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Affiliation(s)
- Amar Jyoti Das
- Rhizospheric Biology Laboratory, Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar (A Central) University, VidyaVihar, Raibareli Road, Lucknow 226 025, India.
| | - Rajesh Kumar
- Rhizospheric Biology Laboratory, Department of Environmental Microbiology, School for Environmental Sciences, Babasaheb Bhimrao Ambedkar (A Central) University, VidyaVihar, Raibareli Road, Lucknow 226 025, India
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40
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Chen C, Sun N, Li D, Long S, Tang X, Xiao G, Wang L. Optimization and characterization of biosurfactant production from kitchen waste oil using Pseudomonas aeruginosa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:14934-14943. [PMID: 29549612 DOI: 10.1007/s11356-018-1691-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 03/04/2018] [Indexed: 06/08/2023]
Abstract
Kitchen waste oil (KWO) from catering industries or households was used as a low-cost carbon source for producing biosurfactants by self-isolated Pseudomonas aeruginosa. Fermentation performance with KWO was superior to those with four other carbon sources, with higher optical density (OD600) of 2.33 and lower interfacial tension of 0.57 mN/m. Culture conditions for biosurfactant production were optimized, with optimal pH of 8.0 and nitrogen source concentration of 2.0 g/L, respectively. The results of infrared spectroscopy and liquid chromatography-mass spectrometry (LC-MS) showed that the biosurfactant was a mixture of six rhamnolipid congeners, among which Rha-Rha-C10-C10 and Rha-C10-C10 were the main components, with mass fraction of approximately 34.20 and 50.86%, respectively. The critical micelle concentration (CMC) obtained was 55.87 mg/L. In addition, the rhamnolipids exhibited excellent tolerance to temperature (20-100 °C), pH (6.0-12.0), and salinity (2-20%; w/v) in a wide range, thereby showing good stability to extreme environmental conditions. The rhamnolipids positively affected oil removal from oil sludge and KWO-contaminated cotton cloth, with removal rate of 34.13 and of 30.92%, respectively. Our results demonstrated that biosurfactant production from KWO was promising, with advantages of good performance, low cost and environmental safety.
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Affiliation(s)
- Chunyan Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, No.8 Xindu Avenue, Xindu District, Chengdu, 610500, People's Republic of China.
| | - Ni Sun
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, No.8 Xindu Avenue, Xindu District, Chengdu, 610500, People's Republic of China
| | - Dongsheng Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, No.8 Xindu Avenue, Xindu District, Chengdu, 610500, People's Republic of China
| | - Sihua Long
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, No.8 Xindu Avenue, Xindu District, Chengdu, 610500, People's Republic of China
| | - Xiaoyu Tang
- Biogas Institute of Ministry of Agriculture, Section 4-13, Renmin South Road, Chengdu, 610500, People's Republic of China.
| | - Guoqing Xiao
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, No.8 Xindu Avenue, Xindu District, Chengdu, 610500, People's Republic of China
| | - Linyuan Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, No.8 Xindu Avenue, Xindu District, Chengdu, 610500, People's Republic of China
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Jin J, Jin Q, Akoh CC, Wang X. Mango kernel fat fractions as potential healthy food ingredients: A review. Crit Rev Food Sci Nutr 2018; 59:1794-1801. [DOI: 10.1080/10408398.2018.1428527] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jun Jin
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, National Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P. R. China
- Department of Food Science and Technology, The University of Georgia, Athens, GA, USA
| | - Qingzhe Jin
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, National Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P. R. China
| | - Casimir C. Akoh
- Department of Food Science and Technology, The University of Georgia, Athens, GA, USA
| | - Xingguo Wang
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, National Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P. R. China
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42
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Liu G, Zhong H, Yang X, Liu Y, Shao B, Liu Z. Advances in applications of rhamnolipids biosurfactant in environmental remediation: A review. Biotechnol Bioeng 2018; 115:796-814. [PMID: 29240227 DOI: 10.1002/bit.26517] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 10/05/2017] [Accepted: 12/04/2017] [Indexed: 12/30/2022]
Abstract
The objective of this review is to provide a comprehensive overview of the advances in the applications of rhamnolipids biosurfactants in soil and ground water remediation for removal of petroleum hydrocarbon and heavy metal contaminants. The properties of rhamnolipids associated with the contaminant removal, that is, solubilization, emulsification, dispersion, foaming, wetting, complexation, and the ability to modify bacterial cell surface properties, were reviewed in the first place. Then current remediation technologies with integration of rhamnolipid were summarized, and the effects and mechanisms for rhamnolipid to facilitate contaminant removal for these technologies were discussed. Finally rhamnolipid-based methods for remediation of the sites co-contaminated by petroleum hydrocarbons and heavy metals were presented and discussed. The review is expected to enhance our understanding on environmental aspects of rhamnolipid and provide some important information to guide the extending use of this fascinating chemical in remediation applications.
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Affiliation(s)
- Guansheng Liu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, China.,School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, China
| | - Hua Zhong
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, China.,School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, China
| | - Xin Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Yang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Binbin Shao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, China
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43
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Sodium chloride effect on the aggregation behaviour of rhamnolipids and their antifungal activity. Sci Rep 2017; 7:12907. [PMID: 29018256 PMCID: PMC5635025 DOI: 10.1038/s41598-017-13424-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/21/2017] [Indexed: 11/17/2022] Open
Abstract
In this work, the antifungal activity of rhamnolipids produced by Pseudomonas aeruginosa #112 was evaluated against Aspergillus niger MUM 92.13 and Aspergillus carbonarius MUM 05.18. It was demonstrated that the di-rhamnolipid congeners were responsible for the antifungal activity exhibited by the crude rhamnolipid mixture, whereas mono-rhamnolipids showed a weak inhibitory activity. Furthermore, in the presence of NaCl (from 375 mM to 875 mM), the antifungal activity of the crude rhamnolipid mixture and the purified di-rhamnolipids was considerably increased. Dynamic Light Scattering studies showed that the size of the structures formed by the rhamnolipids increased as the NaCl concentration increased, being this effect more pronounced in the case of di-rhamnolipids. These results were confirmed by Confocal Scanning Laser Microscopy, which revealed the formation of giant vesicle-like structures (in the µm range) by self-assembling of the crude rhamnolipid mixture in the presence of 875 mM NaCl. In the case of the purified mono- and di-rhamnolipids, spherical structures (also in the µm range) were observed at the same conditions. The results herein obtained demonstrated a direct relationship between the rhamnolipids antifungal activity and their aggregation behaviour, opening the possibility to improve their biological activities for application in different fields.
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44
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Jahurul M, Jing YW, Foong CY, Shaarani SM, Zaidul I, Jinap S, Hasmadi M, Eaqub Ali M, Nyam KL. Effect of accelerated storage on chemical compositions of mango seed fat and palm oil mid-fraction blends as cocoa butter replacers. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.06.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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45
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Yasmin S, Hafeez FY, Mirza MS, Rasul M, Arshad HMI, Zubair M, Iqbal M. Biocontrol of Bacterial Leaf Blight of Rice and Profiling of Secondary Metabolites Produced by Rhizospheric Pseudomonas aeruginosa BRp3. Front Microbiol 2017; 8:1895. [PMID: 29018437 PMCID: PMC5622989 DOI: 10.3389/fmicb.2017.01895] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 09/15/2017] [Indexed: 01/28/2023] Open
Abstract
Xanthomonas oryzae pv. oryzae (Xoo) is widely prevalent and causes Bacterial Leaf Blight (BLB) in Basmati rice grown in different areas of Pakistan. There is a need to use environmentally safe approaches to overcome the loss of grain yield in rice due to this disease. The present study aimed to develop inocula, based on native antagonistic bacteria for biocontrol of BLB and to increase the yield of Super Basmati rice variety. Out of 512 bacteria isolated from the rice rhizosphere and screened for plant growth promoting determinants, the isolate BRp3 was found to be the best as it solubilized 97 μg/ mL phosphorus, produced 30 μg/mL phytohormone indole acetic acid and 15 mg/ L siderophores in vitro. The isolate BRp3 was found to be a Pseudomonas aeruginosa based on 16S rRNA gene sequencing (accession no. HQ840693). This bacterium showed antagonism in vitro against different phytopathogens including Xoo and Fusarium spp. Strain BRp3 showed consistent pathogen suppression of different strains of BLB pathogen in rice. Mass spectrometric analysis detected the production of siderophores (1-hydroxy-phenazine, pyocyanin, and pyochellin), rhamnolipids and a series of already characterized 4-hydroxy-2-alkylquinolines (HAQs) as well as novel 2,3,4-trihydroxy-2-alkylquinolines and 1,2,3,4-tetrahydroxy-2-alkylquinolines in crude extract of BRp3. These secondary metabolites might be responsible for the profound antibacterial activity of BRp3 against Xoo pathogen. Another contributing factor toward the suppression of the pathogen was the induction of defense related enzymes in the rice plant by the inoculated strain BRp3. When used as an inoculant in a field trial, this strain enhanced the grain and straw yields by 51 and 55%, respectively, over non-inoculated control. Confocal Laser Scanning Microscopy (CLSM) used in combination with immunofluorescence marker confirmed P. aeruginosa BRp3 in the rice rhizosphere under sterilized as well as field conditions. The results provide evidence that novel secondary metabolites produced by BRp3 may contribute to its activity as a biological control agent against Xoo and its potential to promote the growth and yield of Super Basmati rice.
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Affiliation(s)
- Sumera Yasmin
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Fauzia Y Hafeez
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan.,Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Muhammad S Mirza
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Maria Rasul
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Hafiz M I Arshad
- Plant Protection Division, Nuclear Institute of Agriculture and Biology, Faisalabad, Pakistan
| | - Muhammad Zubair
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
| | - Mazhar Iqbal
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
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46
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Toward high-efficiency production of biosurfactant rhamnolipids using sequential fed-batch fermentation based on a fill-and-draw strategy. Colloids Surf B Biointerfaces 2017; 157:317-324. [PMID: 28609706 DOI: 10.1016/j.colsurfb.2017.06.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/26/2017] [Accepted: 06/06/2017] [Indexed: 11/24/2022]
Abstract
Rhamnolipids are the most promising biosurfactants, have widespread applications in many fields. However, low yield and productivity in fermentation caused a high production cost and thus prohibited the bulk applications of rhamnolipids in industry. In this study, a sequential fed-batch fermentation process with fill-and-draw operation was developed to improve rhamnolipids production. By utilizing this strategy, the total produced rhamnolipids reached over 150g/L, had a 163% and 102% increase over the traditional batch and fed-batch processes, respectively. This remarkable high production efficiency was achieved by the well-maintained high productivity of 0.4g/Lh for a period of 17 d. Astonishingly, the conversion yield was high as 84%, while this value was only 53.2% and 42.7% in the traditional batch and fed-batch process, respectively. The high-efficiency rhamnolipids production in this sequential fed-batch fermentation could be largely explained by a high presence of cell coupled with the replenishment of nutrients and dilution of toxic byproducts via fill-and-draw operation. In all, this validated fermentation strategy offers a great prospect for high-efficiency production of rhamnolipids in industry.
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