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Pradeep A, Mathew AI, Vemula PK, Bhat SG, Narayanan S. Investigating the pro-inflammatory differentiation of macrophages with bacterial ghosts in potential infection control. Arch Microbiol 2024; 206:361. [PMID: 39066807 PMCID: PMC7616332 DOI: 10.1007/s00203-024-04089-y] [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: 05/30/2024] [Revised: 07/17/2024] [Accepted: 07/19/2024] [Indexed: 07/30/2024]
Abstract
In the complex realm of bacterial infections, particularly those caused by Staphylococcus aureus (S. aureus), macrophages play a pivotal role in orchestrating the immune response. During the initial stages of infection, the monocytes give rise to macrophages with a pro-inflammatory (M1 type) behaviour, engulfing and neutralizing the invading pathogens. However, under the sustained influence of S. aureus infection, monocytes can undergo a transition into an anti-inflammatory M2 state (pro-infection) rather than the M1 state (anti-infection), thereby compromising effective infection control. Therefore, it is necessary to develop a strategy that would preserve the pro-inflammatory functions of macrophages, in a safe and controlled manner. For this, we focused on harnessing the potential of S. aureus-derived ghost cells (GCs) which are non-live empty envelopes of bacterial cells, but with the antigenic determinants intact. Through a unique Lugol's-iodine treatment, we generated GCs and characterization of these GCs using gel electrophoresis, FTIR, flow cytometry, TEM, and SEM confirmed their structural integrity. Following this, we assessed the extend of cellular association of the GCs with RAW267.4 macrophages, and observed an immediate interaction between the two, as evident from the flowcytometry and microscopy studies. We then performed macrophage polarisation on a human monocyte-macrophage model cell line, THP-1. Our findings revealed that GCs effectively activated macrophages, and promoted a pro-inflammatory polarisation with the expression of M1 differentiation markers (CD86, TNFα, IL-1β, IL-6, IL-12) evaluated through both qPCR and ELISA. Interestingly an intermediary expression of M2 markers viz., CD206 and IL-10 was also observed, but was overruled by the enhanced expression of M1 markers at a later time point. Overall, our study introduces a novel approach utilizing GCs to guide naïve macrophages towards M1 subtypes, thereby potentiating immune responses during microbial infections. This innovative strategy can modulate macrophage function, ultimately improving outcomes in S. aureus infections and beyond.
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Affiliation(s)
- Aiswarya Pradeep
- Department of Biotechnology, Cochin University of Science and Technology, Kochi, India
| | - Asish Issac Mathew
- Department of Biotechnology, Cochin University of Science and Technology, Kochi, India
| | | | - Sarita Ganapathy Bhat
- Department of Biotechnology, Cochin University of Science and Technology, Kochi, India
| | - Sreeja Narayanan
- Department of Biotechnology, Cochin University of Science and Technology, Kochi, India.
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2
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Liu X, Liu S, Wang Y, Shi Y, Chen Q. New insights into the antibiofilm activity and mechanism of Mannosylerythritol Lipid-A against Listeria monocytogenes EGD-e. Biofilm 2024; 7:100201. [PMID: 38779407 PMCID: PMC11108854 DOI: 10.1016/j.bioflm.2024.100201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/28/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Listeria monocytogenes is one of the leading causative agents of foodborne disease outbreaks worldwide. Herein, the antibiofilm effect and mechanism of Mannosylerythritol Lipid-A against L. monocytogenes EGD-e is reported for the first time. MEL-A effectively attenuated biofilm formation while reducing the viability and motility of bacteria within the biofilm in the early stage, and influenced bacterial adhesion by affecting the secretion of extracellular polysaccharides and eDNA. RT-qPCR revealed that MEL-A significantly suppressed the expression of genes involved in flagellar movement and virulence. Untargeted LC-MS metabolomics indicated that MEL-A affected the fluidity and permeability of cell membranes by significantly upregulating unsaturated fatty acids, lipids and glycoside metabolites, and affected protein biosynthesis, nucleotide metabolism and DNA synthesis and repair by significantly downregulating amino acid metabolism and nucleic acid metabolism. These pathways may constitute the key targets of biofilm formation inhibition by MEL-A. Furthermore, MEL-A showed good removal effects on mature biofilms under different temperatures, different materials and milk. Our data indicated that MEL-A could be used as a novel antibiofilm agent to improve food safety. Our study provides new insights into the possible inhibitory mechanism of MEL-A and the response of L. monocytogenes EGD-e to MEL-A.
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Affiliation(s)
- Xiayu Liu
- Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan, 314100, China
| | - Siyu Liu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
- Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan, 314100, China
| | - Yuxi Wang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Ying Shi
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, China
- Innovation Center of Yangtze River Delta, Zhejiang University, Jiashan, 314100, China
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3
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Li Y, Wangjiang T, Sun Z, Shi L, Chen S, Chen L, Guo X, Wu W, Xiong G, Wang L. Inhibition mechanism of crude lipopeptide from Bacillus subtilis against Aeromonas veronii growth, biofilm formation, and spoilage of channel catfish flesh. Food Microbiol 2024; 120:104489. [PMID: 38431332 DOI: 10.1016/j.fm.2024.104489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 03/05/2024]
Abstract
Aeromonas veronii is associated with food spoilage and some human diseases, such as diarrhea, gastroenteritis, hemorrhagic septicemia or asymptomatic and even death. This research investigated the mechanism of the growth, biofilm formation, virulence, stress resistance, and spoilage potential of Bacillus subtilis lipopeptide against Aeromonas veronii. Lipopeptides suppressed the transmembrane transport of Aeromonas veronii by changing the cell membrane's permeability, the structure of membrane proteins, and Na+/K+-ATPase. Lipopeptide significantly reduced the activities of succinate dehydrogenase (SDH) and malate dehydrogenase (MDH) by 86.03% and 56.12%, respectively, ultimately slowing Aeromonas veronii growth. Lipopeptides also restrained biofilm formation by inhibiting Aeromonas veronii motivation and extracellular polysaccharide secretion. Lipopeptides downregulated gene transcriptional levels related to the virulence and stress tolerance of Aeromonas veronii. Furthermore, lipopeptides treatment resulted in a considerable decrease in the extracellular protease activity of Aeromonas veronii, which restrained the decomposing of channel catfish flesh. This research provides new insights into lipopeptides for controlling Aeromonas veronii and improving food safety.
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Affiliation(s)
- Yali Li
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Tianqi Wangjiang
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China; State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Sciences and Technology, Anhui Agricultural University, Hefei, 230036, China
| | - Zhida Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Liu Shi
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Sheng Chen
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Lang Chen
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Xiaojia Guo
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Wenjin Wu
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Guangquan Xiong
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Lan Wang
- Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Institute of Agro-Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
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4
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Georgescu AM, Corbu VM, Csutak O. Molecular Basis of Yeasts Antimicrobial Activity-Developing Innovative Strategies for Biomedicine and Biocontrol. Curr Issues Mol Biol 2024; 46:4721-4750. [PMID: 38785553 PMCID: PMC11119588 DOI: 10.3390/cimb46050285] [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: 03/31/2024] [Revised: 04/28/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024] Open
Abstract
In the context of the growing concern regarding the appearance and spread of emerging pathogens with high resistance to chemically synthetized biocides, the development of new agents for crops and human protection has become an emergency. In this context, the yeasts present a huge potential as eco-friendly agents due to their widespread nature in various habitats and to their wide range of antagonistic mechanisms. The present review focuses on some of the major yeast antimicrobial mechanisms, their molecular basis and practical applications in biocontrol and biomedicine. The synthesis of killer toxins, encoded by dsRNA virus-like particles, dsDNA plasmids or chromosomal genes, is encountered in a wide range of yeast species from nature and industry and can affect the development of phytopathogenic fungi and other yeast strains, as well as human pathogenic bacteria. The group of the "red yeasts" is gaining more interest over the last years, not only as natural producers of carotenoids and rhodotorulic acid with active role in cell protection against the oxidative stress, but also due to their ability to inhibit the growth of pathogenic yeasts, fungi and bacteria using these compounds and the mechanism of competition for nutritive substrate. Finally, the biosurfactants produced by yeasts characterized by high stability, specificity and biodegrability have proven abilities to inhibit phytopathogenic fungi growth and mycelia formation and to act as efficient antibacterial and antibiofilm formation agents for biomedicine. In conclusion, the antimicrobial activity of yeasts represents a direction of research with numerous possibilities of bioeconomic valorization as innovative strategies to combat pathogenic microorganisms.
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Affiliation(s)
- Ana-Maria Georgescu
- Department of Genetics, Faculty of Biology, University of Bucharest, Aleea Portocalelor 1-3, 060101 Bucharest, Romania; (A.-M.G.); (V.M.C.)
| | - Viorica Maria Corbu
- Department of Genetics, Faculty of Biology, University of Bucharest, Aleea Portocalelor 1-3, 060101 Bucharest, Romania; (A.-M.G.); (V.M.C.)
- Research Institute of University of Bucharest (ICUB), University of Bucharest, B.P. Hasdeu Street 7, 050568 Bucharest, Romania
| | - Ortansa Csutak
- Department of Genetics, Faculty of Biology, University of Bucharest, Aleea Portocalelor 1-3, 060101 Bucharest, Romania; (A.-M.G.); (V.M.C.)
- Research Institute of University of Bucharest (ICUB), University of Bucharest, B.P. Hasdeu Street 7, 050568 Bucharest, Romania
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Liu D, Liu G, Liu S. Promising Application, Efficient Production, and Genetic Basis of Mannosylerythritol Lipids. Biomolecules 2024; 14:557. [PMID: 38785964 PMCID: PMC11117751 DOI: 10.3390/biom14050557] [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: 04/11/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
Mannosylerythritol lipids (MELs) are a class of glycolipids that have been receiving increasing attention in recent years due to their diverse biological activities. MELs are produced by certain fungi and display a range of bioactivities, making them attractive candidates for various applications in medicine, agriculture, and biotechnology. Despite their remarkable qualities, industrial-scale production of MELs remains a challenge for fungal strains. Excellent fungal strains and fermentation processes are essential for the efficient production of MELs, so efforts have been made to improve the fermentation yield by screening high-yielding strains, optimizing fermentation conditions, and improving product purification processes. The availability of the genome sequence is pivotal for elucidating the genetic basis of fungal MEL biosynthesis. This review aims to shed light on the applications of MELs and provide insights into the genetic basis for efficient MEL production. Additionally, this review offers new perspectives on optimizing MEL production, contributing to the advancement of sustainable biosurfactant technologies.
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Affiliation(s)
- Dun Liu
- College of Marine Life Science, Ocean University of China, Qingdao 266003, China;
| | - Guanglei Liu
- College of Marine Life Science, Ocean University of China, Qingdao 266003, China;
| | - Shiping Liu
- State Key Laboratory of Resource Insects, Southwest University, Beibei, Chongqing 400716, China
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6
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Hussaini IM, Oyewole OA, Sulaiman MA, Dabban AI, Sulaiman AN, Tarek R. Microbial anti-biofilms: types and mechanism of action. Res Microbiol 2024; 175:104111. [PMID: 37844786 DOI: 10.1016/j.resmic.2023.104111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 10/18/2023]
Abstract
Biofilms have been recognized as a serious threat to public health as it protects microbes from antimicrobials, immune defence mechanisms, chemical treatments and nutritional stress. Biofilms are also a source of concern in industries and water treatment because their presence compromises the integrity of equipment. To overcome these problems, it is necessary to identify novel anti-biofilm compounds. Products of microorganisms have been identified as promising broad-spectrum anti-biofilm agents. These natural products include biosurfactants, antimicrobial peptides, enzymes and bioactive compounds. Anti-biofilm products of microbial origin are chemically diverse and possess a broad spectrum of activities against biofilms. The objective of this review is to give an overview of the different types of microbial anti-biofilm products and their mechanisms of action.
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Affiliation(s)
| | - Oluwafemi Adebayo Oyewole
- Department of Microbiology, School of Life Sciences, Federal University of Technology, Minna, Nigeria; African Center of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria.
| | | | | | - Asmau Nna Sulaiman
- Department of Microbiology, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Reham Tarek
- Department of Biotechnology, Cairo University, Egypt
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Bippus L, Briem AK, Beck A, Zibek S, Albrecht S. Life cycle assessment for early-stage process optimization of microbial biosurfactant production using kinetic models-a case study on mannosylerythritol lipids (MEL). Front Bioeng Biotechnol 2024; 12:1347452. [PMID: 38464544 PMCID: PMC10920258 DOI: 10.3389/fbioe.2024.1347452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/06/2024] [Indexed: 03/12/2024] Open
Abstract
Introduction: This study assesses the environmental impacts of mannosylerythritol lipids (MELs) production for process optimization using life cycle assessment (LCA). MELs are glycolipid-type microbial biosurfactants with many possible applications based on their surface-active properties. They are generally produced by fungi from the family of Ustilaginaceae via fermentation in aerated bioreactors. The aim of our work is to accompany the development of biotechnological products at an early stage to enable environmentally sustainable process optimization. Methods: This is done by identifying hotspots and potentials for improvement based on a reliable quantification of the environmental impacts. The production processes of MELs are evaluated in a cradle-to-gate approach using the Environmental Footprint (EF) 3.1 impact assessment method. The LCA model is based on upscaled experimental data for the fermentation and purification, assuming the production at a 10 m³ scale. In the case analyzed, MELs are produced from rapeseed oil and glucose, and purified by separation, solvent extraction, and chromatography. Results: The results of the LCA show that the provision of substrates is a major source of environmental impacts and accounts for 20% of the impacts on Climate Change and more than 70% in the categories Acidification and Eutrophication. Moreover, 33% of the impacts on Climate Change is caused by the energy requirements for aeration of the bioreactor, while purification accounts for 42% of the impacts respectively. For the purification, solvents are identified as the main contributors in most impact categories. Discussion: The results illustrate the potentials for process optimization to reduce the environmental impacts of substrate requirements, enhanced bioreactor aeration, and efficient solvent use in downstream processing. By a scenario analysis, considering both experimental adaptations and prospective variations of the process, the laboratory development can be supported with further findings and hence efficiently optimized towards environmental sustainability. Moreover, the presentation of kinetic LCA results over the fermentation duration shows a novel way of calculating and visualizing results that corresponds to the way of thinking of process engineers using established environmental indicators and a detailed system analysis. Altogether, this LCA study supports and demonstrates the potential for further improvements towards more environmentally friendly produced surfactants.
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Affiliation(s)
- Lars Bippus
- Department Life Cycle Engineering GaBi, Institute for Acoustics and Building Physics IABP, University of Stuttgart, Stuttgart, Germany
| | - Ann-Kathrin Briem
- Department Life Cycle Engineering GaBi, Institute for Acoustics and Building Physics IABP, University of Stuttgart, Stuttgart, Germany
- Department Life Cycle Engineering GaBi, Fraunhofer Institute for Building Physics IBP, Stuttgart, Germany
| | - Alexander Beck
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
- Institute for Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
| | - Susanne Zibek
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
- Institute for Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
| | - Stefan Albrecht
- Department Life Cycle Engineering GaBi, Fraunhofer Institute for Building Physics IBP, Stuttgart, Germany
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8
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Li C, Wang Y, Zhou L, Cui Q, Sun W, Yang J, Su H, Zhao F. High mono-rhamnolipids production by a novel isolate Pseudomonas aeruginosa LP20 from oily sludge: characterization, optimization, and potential application. Lett Appl Microbiol 2024; 77:ovae016. [PMID: 38366661 DOI: 10.1093/lambio/ovae016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/18/2024] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
This study aims to isolate microbial strains for producing mono-rhamnolipids with high proportion. Oily sludge is rich in petroleum and contains diverse biosurfactant-producing strains. A biosurfactant-producing strain LP20 was isolated from oily sludge, identified as Pseudomonas aeruginosa based on phylogenetic analysis of 16S rRNA. High-performance liquid chromatography-mass spectrometry results indicated that biosurfactants produced from LP20 were rhamnolipids, mainly containing Rha-C8-C10, Rha-C10-C10, Rha-Rha-C8-C10, Rha-Rha-C10-C10, Rha-C10-C12:1, and Rha-C10-C12. Interestingly, more mono-rhamnolipids were produced by strain LP20 with a relative abundance of 64.5%. Pseudomonas aeruginosa LP20 optimally produced rhamnolipids at a pH of 7.0 and a salinity of 0.1% using glycerol and nitrate. The culture medium for rhamnolipids by strain LP20 was optimized by response surface methodology. LP20 produced rhamnolipids up to 6.9 g L-1, increased by 116%. Rhamnolipids produced from LP20 decreased the water surface tension to 28.1 mN m-1 with a critical micelle concentration of 60 mg L-1. The produced rhamnolipids emulsified many hydrocarbons with EI24 values higher than 56% and showed antimicrobial activity against Staphylococcus aureus and Cladosporium sp. with inhibition rates 48.5% and 17.9%, respectively. Pseudomonas aeruginosa LP20 produced more proportion of mono-rhamnolipids, and the LP20 rhamnolipids exhibited favorable activities and promising potential in microbial-enhanced oil recovery, bioremediation, and agricultural biocontrol.
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Affiliation(s)
- Chunyan Li
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Yujing Wang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Liguo Zhou
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Qingfeng Cui
- Research Center of Enhanced Oil Recovery, PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China
| | - Wenzhe Sun
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Junyuan Yang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Han Su
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Feng Zhao
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
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9
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Liu S, Gu S, Shi Y, Chen Q. Alleviative effects of mannosylerythritol lipid-A on the deterioration of internal structure and quality in frozen dough and corresponding steamed bread. Food Chem 2024; 431:137122. [PMID: 37573742 DOI: 10.1016/j.foodchem.2023.137122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/17/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
The effects of mannosylerythritol lipid-A (MEL-A) on the quality of frozen dough and corresponding steamed bread were investigated. The results revealed that the rheological properties of frozen dough were improved with the increment of MEL-A (0%-2.0%). Adding 1.5% and 2% MEL-A significantly reduced the moisture migration and enhanced the water-holding capacity of the frozen dough. Microstructure observation demonstrated that high levels of MEL-A enabled more starch granules to be embedded in the dough network. A series of product quality assessments illustrated that frozen dough steamed bread containing 2.0% of MEL-A had the largest specific volume (2.981 mL/g), the highest springiness (77.47%), more uniform and porous crumb structure. Moreover, MEL-A exhibited a positive effect on steamed bread's flavor profile, which was explored for the first time in this study. Hence, these results suggested that MEL-A has promising applications as a novel dough improver in the food industry.
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Affiliation(s)
- Siyu Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314102, China
| | - Simin Gu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ying Shi
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Qihe Chen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314102, China.
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Venkataraman S, Rajendran DS, Vaidyanathan VK. An insight into the utilization of microbial biosurfactants pertaining to their industrial applications in the food sector. Food Sci Biotechnol 2024; 33:245-273. [PMID: 38222912 PMCID: PMC10786815 DOI: 10.1007/s10068-023-01435-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/01/2023] [Accepted: 09/10/2023] [Indexed: 01/16/2024] Open
Abstract
Microbial biosurfactants surpass synthetic alternatives due to their biodegradability, minimal toxicity, selective properties, and efficacy across a wide range of environmental conditions. Owing to their remarkable advantages, biosurfactants employability as effective emulsifiers and stabilizers, antimicrobial and antioxidant attributes, rendering them for integration into food preservation, processing, formulations, and packaging. The biosurfactants can also be derived from various types of food wastes. Biosurfactants are harnessed across multiple sectors within the food industry, ranging from condiments (mayonnaise) to baked goods (bread, muffins, loaves, cookies, and dough), and extending into the dairy industry (cheese, yogurt, and fermented milk). Additionally, their impact reaches the beverage industry, poultry feed, seafood products like tuna, as well as meat processing and instant foods, collectively redefining each sector's landscape. This review thoroughly explores the multifaceted utilization of biosurfactants within the food industry as emulsifiers, antimicrobial, antiadhesive, antibiofilm agents, shelf-life enhancers, texture modifiers, and foaming agents.
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Affiliation(s)
- Swethaa Venkataraman
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology (SRM IST), Kattankulathur, Tamil Nadu 603203 India
| | - Devi Sri Rajendran
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology (SRM IST), Kattankulathur, Tamil Nadu 603203 India
| | - Vinoth Kumar Vaidyanathan
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology (SRM IST), Kattankulathur, Tamil Nadu 603203 India
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11
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Faria NT, Nascimento MF, Ferreira FA, Esteves T, Santos MV, Ferreira FC. Substrates of Opposite Polarities and Downstream Processing for Efficient Production of the Biosurfactant Mannosylerythritol Lipids from Moesziomyces spp. Appl Biochem Biotechnol 2023; 195:6132-6149. [PMID: 36811772 PMCID: PMC10511570 DOI: 10.1007/s12010-023-04317-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2023] [Indexed: 02/24/2023]
Abstract
Biosurfactants can replace fossil-driven surfactants with positive environmental impacts, owing to their low eco-toxicity and high biodegradability. However, their large-scale production and application are restricted by high production costs. Such costs can be reduced using renewable raw materials and facilitated downstream processing. Here, a novel strategy for mannosylerythritol lipid (MEL) production explores the combination of hydrophilic and hydrophobic carbon sources sideways with a novel downstream processing strategy, based on nanofiltration technology. Co-substrate MEL production by Moesziomyces antarcticus was threefold higher than using D-glucose with low levels of residual lipids. The use of waste frying oil instead of soybean oil (SBO) in co-substrate strategy resulted in similar MEL production. Moesziomyces antarcticus cultivations, using 3.9 M of total carbon in substrates, yields 7.3, 18.1, and 20.1 g/L of MEL, and 2.1, 10.0, and 5.1 g/L of residual lipids, for D-glucose, SBO, and a combination of D-Glucose and SBO, respectively. Such approach makes it possible to reduce the amount of oil used, offset by the equivalent molar increase in D-glucose, improving sustainability and decreasing residual unconsumed oil substrates, facilitating downstream processing. Moesziomyces spp. also produces lipases that broken down the oil and, thus, residual unconsumed oils are in the form of free fatty-acids or monoacylglycerol, which are smaller molecules than MEL. Therefore, nanofiltration of ethyl acetate extracts from co-substrate-based culture broths allows to improve MEL purity (ratio of MEL per total MEL and residual lipids) from 66 to 93% using 3-diavolumes.
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Affiliation(s)
- Nuno Torres Faria
- Department of Bioengineering and iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Miguel Figueiredo Nascimento
- Department of Bioengineering and iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Flávio Alves Ferreira
- Department of Bioengineering and iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Teresa Esteves
- Department of Bioengineering and iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - Marisa Viegas Santos
- Department of Bioengineering and iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Frederico Castelo Ferreira
- Department of Bioengineering and iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal.
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12
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Su S, Bu Q, Bai X, Huang Y, Wang F, Hong J, Fang JY, Wu S, Sheng C. Discovery of potent natural product higenamine derivatives as novel Anti-Fusobacterium nucleatum agents. Bioorg Chem 2023; 138:106586. [PMID: 37178651 DOI: 10.1016/j.bioorg.2023.106586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/11/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023]
Abstract
Fusobacterium nucleatum (F. nucleatum) is closely associated with the occurrence and development of colorectal cancer (CRC). Discovery of specific antibacterial agents against F. nucleatum was urgent for the prevention and treatment of CRC. We screened a natural product library and successfully identified higenamine as an antibacterial hit against F. nucleatum. Further hit optimizations led to the discovery of new higenamine derivatives with improved anti-F. nucleatum activity. Among them, compound 7c showed potent antibacterial activity against F. nucleatum (MIC50 = 0.005 μM) with good selectivity toward intestinal bacteria and normal cells. It significantly inhibited the migration of CRC cells induced by F. nucleatum. Mechanism study revealed that compound 7c impaired the integrity of biofilm and cell wall, which represents a good starting point for the development of novel anti-F. nucleatum agents.
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Affiliation(s)
- Sijia Su
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Chashan Road, Wenzhou, Zheijang 325035, China; Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
| | - Qingwei Bu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Chashan Road, Wenzhou, Zheijang 325035, China; Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
| | - Xuexin Bai
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
| | - Yahui Huang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
| | - Fangfang Wang
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
| | - Jie Hong
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shanchao Wu
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
| | - Chunquan Sheng
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Chashan Road, Wenzhou, Zheijang 325035, China; Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University (Naval Medical University), 325 Guohe Road, Shanghai 200433, China
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13
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Oliveira AMD, Anjos Szczerepa MMD, Bronharo Tognim MC, Abreu Filho BAD, Cardozo-Filho L, Gomes RG, Bergamasco R. Moringa oleifera seed oil extracted by pressurized n-propane and its effect against Staphylococcus aureus biofilms. ENVIRONMENTAL TECHNOLOGY 2023; 44:1083-1098. [PMID: 34704544 DOI: 10.1080/09593330.2021.1994653] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Staphylococcus aureus is often associated worldwide with foodborne illnesses, and the elimination of biofilms formed by this bacterium from industrial surfaces is very challenging. To date, there have been few attempts to investigate plant oils obtained by recent green technologies, applied against biofilms on usual surfaces of the food industry and bacteria isolated from such environment. Therefore, this study evaluated the activity of Moringa oleifera seed oil (MOSO), extracted with pressurized n-propane, against standard and environmental S. aureus biofilms. Additionally, a genotypic and phenotypic study of the environmental S. aureus was proposed. It was found that this bacterium was a MSSA (methicillin-sensitive S. aureus), a carrier of icaA and icaD genes that has strong adhesion (OD550=1.86 ± 0.19) during biofilm formation. The use of pressurized n-propane as a solvent was efficient in obtaining MOSO, achieving a yield of 60.9%. Gas chromatography analyses revealed the presence of a rich source of fatty acids in MOSO, mainly oleic acid (62.47%), behenic acid (10.5%) and palmitic acid (7.32%). On polystyrene surface, MOSO at 0.5% and 1% showed inhibitory and bactericidal activity, respectively, against S. aureus biofilms. MOSO at 1% allowed a maximum reduction of 2.38 log UFC/cm² of S. aureus biofilms formed on PVC (polyvinyl chloride) surface. Scanning electron microscopy showed disturbances on the surface of S. aureus after exposure to MOSO. These unprecedented findings suggest that MOSO extracted with pressurized n-propane is potentially capable of inhibiting biofilms of different S. aureus strains, thus, contributing to microbiological safety during food processing.
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Affiliation(s)
| | | | | | | | - Lúcio Cardozo-Filho
- Department of Chemical Engineering, State University of Maringa, Maringa, Brazil
| | | | - Rosângela Bergamasco
- Department of Chemical Engineering, State University of Maringa, Maringa, Brazil
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14
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Matosinhos RD, Cesca K, Carciofi BAM, de Oliveira D, de Andrade CJ. Mannosylerythritol lipids as green pesticides and plant biostimulants. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:37-47. [PMID: 35775374 DOI: 10.1002/jsfa.12100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 06/03/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Biosurfactants can be applied in the formulation of personal care products, as food additives, and as biocontrol agents in the agricultural sector. Glycolipids and lipopeptides represent an important group of microbial-based biosurfactants with biostimulating properties. Among them, the mannosylerythritol lipids also presented antimicrobial activity, mostly against Gram-positive bacteria and phytopathogenic fungi. In this sense, mannosylerythritol lipids are a potential safer green alternative for partially replacing synthetic pesticides. This review aimed to critically discuss the current state of the art and future trends of mannosylerythritol lipids as green pesticides and biostimulants for seed germination and plant growth. Due to their chemical structure, mannosylerythritol lipids are likely related to energy pathways such as glycolysis and Krebs cycle, i.e. a direct cellular biostimulant potential. In this case, experimental evidence from other glycolipids indicated that structural and chemical changes as a potential drug vehicle due to morphological changes caused by biosurfactant-membrane interaction. In addition, like other biosurfactants, mannosylerythritol lipids can trigger self-defense mechanisms, leading to a lower frequency of phytopathogen infections. Therefore, mannosylerythritol lipids have the potential for biostimulation and antiphytopathogenic action, despite that to date no data are available on mannosylerythritol lipids as biostimulants and green pesticides simultaneously. Based on the current state of the art, mannosylerythritol lipids have great potential for a biotechnological advance toward more sustainable agriculture. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Renato Dias Matosinhos
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Karina Cesca
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Débora de Oliveira
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Cristiano José de Andrade
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
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15
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de Oliveira Schmidt VK, de Vasconscelos GMD, Vicente R, de Souza Carvalho J, Della-Flora IK, Degang L, de Oliveira D, de Andrade CJ. Cassava wastewater valorization for the production of biosurfactants: surfactin, rhamnolipids, and mannosileritritol lipids. World J Microbiol Biotechnol 2023; 39:65. [PMID: 36583818 PMCID: PMC9801157 DOI: 10.1007/s11274-022-03510-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/22/2022] [Indexed: 12/31/2022]
Abstract
The global production of cassava was estimated at ca. 303 million tons. Due to this high production, the cassava processing industry (cassava flour and starch) generates approximately ca. 0.65 kg of solid residue and ca. 25.3 l of wastewater per kg of fresh processed cassava root. The composition of the liquid effluent varies according to its origin; for example, the effluent from cassava flour production, when compared to the wastewater from the starch processing, presents a higher organic load (ca. 12 times) and total cyanide (ca. 29 times). It is worthy to highlight the toxicity of cassava residues regarding cyanide presence, which could generate disorders with acute or chronic symptoms in humans and animals. In this sense, the development of simple and low-cost eco-friendly methods for the proper treatment or reuse of cassava wastewater is a challenging, but promising path. Cassava wastewater is rich in macro-nutrients (proteins, starch, sugars) and micro-nutrients (iron, magnesium), enabling its use as a low-cost culture medium for biotechnological processes, such as the production of biosurfactants. These compounds are amphipathic molecules synthesized by living cells and can be widely used in industries as pharmaceutical agents, for microbial-enhanced oil recovery, among others. Amongst these biosurfactants, surfactin, rhamnolipids, and mannosileritritol lipids show remarkable properties such as antimicrobial, biodegradability, demulsifying and emulsifying capacity. However, the high production cost restricts the massive biosurfactant applications. Therefore, this study aims to present the state of the art and challenges in the production of biosurfactants using cassava wastewater as an alternative culture medium.
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Affiliation(s)
- Vanessa Kristine de Oliveira Schmidt
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | | | - Renata Vicente
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Jackelyne de Souza Carvalho
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Isabela Karina Della-Flora
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Lucas Degang
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Débora de Oliveira
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Cristiano José de Andrade
- Department of Chemical Engineering and Food Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, SC 88040-900 Brazil
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16
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Zeng J, Chen D, Lv C, Qin K, Zhou Q, Pu N, Song S, Wang X. Antimicrobial and anti-biofilm activity of Polygonum chinense L.aqueous extract against Staphylococcus aureus. Sci Rep 2022; 12:21988. [PMID: 36539472 PMCID: PMC9768122 DOI: 10.1038/s41598-022-26399-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Polygonum chinense Linn. (Polygonum chinense L.) is one of the main raw materials of Chinese patent medicines such as Guangdong herbal tea. The increasing antibiotic resistance of S. aureus and the biofilm poses a serious health threat to humans, and there is an urgent need to provide new antimicrobial agents. As a traditional Chinese medicine, the antibacterial effect of Polygonum chinense L. has been reported, but the antibacterial mechanism of Polygonum chinense L.aqueous extract and its effect on biofilm have not been studied in great detail, which hinders its application as an effective antibacterial agent. In this study, the mechanism of action of Polygonum chinense L.aqueous extract on Staphylococcus aureus (S. aureus) and its biofilm was mainly evaluated by morphological observation, flow cytometry and laser confocal experiments. Our findings demonstrate that Polygonum chinense L.aqueous extract has a significant bacteriostatic effect on S. aureus. The result of growth curve exhibits that Polygonum chinense L.aqueous extract presents a significant inhibitory effect against S. aureus. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) reveals that Polygonum chinense L.aqueous extract exerts a potent destruction of the cell wall of S. aureus and a significant inhibitory effect on the formation of S. aureus biofilm. In addition, flow cytometry showed the ability of Polygonum chinense L.aqueous extract to promote apoptosis by disrupting cell membranes of S. aureus. Notably, confocal laser scanning microscopy (CLSM) images illustrated the ability of Polygonum chinense L.aqueous to inhibit the formation of S. aureus biofilms in a dose-dependent manner. These results suggested that Polygonum chinense L.aqueous is a promising alternative antibacterial and anti-biofilm agent for combating infections caused by planktonic and biofilm cells of S. aureus.
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Affiliation(s)
- Jianye Zeng
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Dandan Chen
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Chunli Lv
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Kening Qin
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Qin Zhou
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Na Pu
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Shanshan Song
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China
| | - Xiaomin Wang
- grid.417409.f0000 0001 0240 6969School of Preclinical Medicine of Zunyi Medical University, Zunyi Medical University, Zunyi, 563000 Guizhou People’s Republic of China ,National Clinical Research Center for Infectious Diseases, Shenzhen, 518112 Guangdong People’s Republic of China
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17
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Nascimento MF, Coelho T, Reis A, Gouveia L, Faria NT, Ferreira FC. Production of Mannosylerythritol Lipids Using Oils from Oleaginous Microalgae: Two Sequential Microorganism Culture Approach. Microorganisms 2022; 10:microorganisms10122390. [PMID: 36557643 PMCID: PMC9783733 DOI: 10.3390/microorganisms10122390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
Mannosylerythritol lipids (MELs) are biosurfactants with excellent biochemical properties and a wide range of potential applications. However, most of the studies focusing on MELs high titre production have been relying in the use of vegetable oils with impact on the sustainability and process economy. Herein, we report for the first time MELs production using oils produced from microalgae. The bio-oil was extracted from Neochloris oleoabundans and evaluated for their use as sole carbon source or in a co-substrate strategy, using as an additional carbon source D-glucose, on Moesziomyces spp. cultures to support cell growth and induce the production of MELs. Both Moesziomyces antarcticus and M. aphidis were able to grow and produce MELs using algae-derived bio-oils as a carbon source. Using a medium containing as carbon sources 40 g/L of D-glucose and 20 g/L of bio-oils, Moesziomyces antarcticus and M. aphidis produced 12.47 ± 0.28 and 5.72 ± 2.32 g/L of MELs, respectively. Interestingly, there are no significant differences in productivity when using oils from microalgae or vegetable oils as carbon sources. The MELs productivities achieved were 1.78 ± 0.04 and 1.99 ± 0.12 g/L/h, respectively, for M. antarcticus fed with algae-derived or vegetable oils. These results open new perspectives for the production of MELs in systems combining different microorganisms.
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Affiliation(s)
- Miguel Figueiredo Nascimento
- Department of Bioengineering, IBB—Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Tiago Coelho
- Department of Bioengineering, IBB—Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - Alberto Reis
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia e Biorrefinarias, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
| | - Luísa Gouveia
- Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia e Biorrefinarias, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
- GreenCoLab—Green Ocean Technologies and Products Collaborative Laboratory, CCMAR, Algarve University, 8005-139 Faro, Portugal
| | - Nuno Torres Faria
- Department of Bioengineering, IBB—Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- Correspondence: (N.T.F.); (F.C.F.); Tel.: +351-218419598 (F.C.F.)
| | - Frederico Castelo Ferreira
- Department of Bioengineering, IBB—Institute for Biotechnology and Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- Correspondence: (N.T.F.); (F.C.F.); Tel.: +351-218419598 (F.C.F.)
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18
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Handa S, Aggarwal Y, Puri S, Chatterjee M. Pharmaceutical prospects of biosurfactants produced from fungal species. J Basic Microbiol 2022; 62:1307-1318. [PMID: 36257786 DOI: 10.1002/jobm.202200327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/10/2022] [Indexed: 11/10/2022]
Abstract
The development of novel types of biogenic surface-active compounds is of greater interest for combating many diseases and infections. In this respect research and development of biosurfactant has gained immense importance. Substantially, biosurfactant is defined as a class of active amphiphilic chemical compounds that comprise hydrophobic and hydrophilic moieties on their surfaces. It is generally known that many kinds of microorganisms can be used to produce these surfactants or surface-active compounds. Hosting interesting features such as biodegradability, emulsifying/de-emulsifying capacity, low toxicity, and antimicrobial activities; these amphiphilic compounds in recent years have flourished as an ideal replacement for the chemically synthesized surfactant, and also have various commercial attractions. Both bacteria and fungi are the producers of these amphiphilic molecules; however, the pathogenicity of certain bacterial strains has caused a shift in interest toward fungi. Therefore, various fungi species have been reported for the production of biosurfactants amongst which Candida species have been the most studied strains. Biosurfactants uphold desired properties like antibacterial, antifungal, antiviral, antiadhesion, and anticancer activity which proves them an ideal candidate for the application in various fields like pharmaceutical, gene therapy, medical insertion safety, immunotherapy to fight against many chronic diseases, and so forth. Hence, this review article discusses the pharmaceutical prospects of biosurfactants produced from different fungal species, providing new directions toward the discovery and development of molecules with novel structures and diverse functions for advanced application in the medical field.
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Affiliation(s)
- Shristi Handa
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Yadu Aggarwal
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Sanjeev Puri
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Mary Chatterjee
- Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
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19
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Liu X, Pang X, Wu Y, Wu Y, Shi Y, Zhang X, Chen Q. Synergistic Antibacterial Mechanism of Mannosylerythritol Lipid-A and Lactic Acid on Listeria monocytogenes Based on Transcriptomic Analysis. Foods 2022; 11:foods11172660. [PMID: 36076848 PMCID: PMC9455235 DOI: 10.3390/foods11172660] [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: 07/26/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 11/21/2022] Open
Abstract
Mannosylerythritol lipids-A (MEL-A) is a novel biosurfactant with multiple biological effects. The synergistic antibacterial activity and mechanism of MEL-A and lactic acid (LA) against Listeria monocytogenes were investigated. The synergistic effect resulted in a significant increase in the antibacterial rate compared to LA treatment alone. Genome-wide transcriptomic analysis was applied to deeply investigate the synergistic antibacterial mechanism. Gene Ontology (GO) enrichment analysis showed that the synergy between MEL-A and LA affected many potential cellular responses, including the sugar phosphotransferase system, carbohydrate transport, and ribosomes. KEGG enrichment analysis showed that the PTS system and ribosome-related pathways were significantly enriched. In addition, synergistic treatment affected locomotion and membrane-related cellular responses in GO enrichment analysis and carbohydrate metabolism and amino acid metabolism pathways in KEGG enrichment analysis compared to LA treatment alone. The accuracy of the transcriptome analysis results was verified by qPCR (R2 = 0.9903). This study will provide new insights for the prevention and control of L. monocytogenes.
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Affiliation(s)
- Xiayu Liu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
| | - Xinxin Pang
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
| | - Yansha Wu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
| | - Yajing Wu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
| | - Ying Shi
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
| | - Xinglin Zhang
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
- College of Agriculture and Forestry, Linyi University, Linyi 276005, China
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd. 866, Hangzhou 310058, China
- Correspondence: ; Tel.: +86-571-86984316
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20
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Yu G, Wang X, Zhang C, Chi Z, Chi Z, Liu G. Efficient production of mannosylerythritol lipids by a marine yeast Moesziomyces aphidis XM01 and their application as self-assembly nanomicelles. MARINE LIFE SCIENCE & TECHNOLOGY 2022; 4:373-383. [PMID: 37073164 PMCID: PMC10077156 DOI: 10.1007/s42995-022-00135-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 05/11/2022] [Indexed: 05/03/2023]
Abstract
Mannosylerythritol lipids (MELs) are one of the most promising biosurfactants because of their excellent physicochemical properties, high environmental compatibility, and various biological functions. In this study, a mangrove yeast strain Moesziomyces aphidis XM01 was identified and used for efficient extracellular MEL production. The MEL titer reached 64.5 ± 0.7 g/L at flask level within 7 days with the optimized nitrogen and carbon source of 2.0 g/L NaNO3 and 70 g/L soybean oil. Furthermore, during a 10-L two-stage fed-batch fermentation, the final MEL titer reached 113.6 ± 3.1 g/L within 8 days, with prominent productivity and yield of 14.2 g·L-1·day-1 and 94.6 g/g(glucose and soybean oil). Structural analysis indicated that the produced MELs were mainly MEL-A and its fatty acid profile was composed of only medium-chain fatty acids (C8-C12), especially C10 acids (77.81%). Further applications of this compound were evaluated as one-step self-assembly nanomicelles. The obtained MEL nanomicelles showed good physicochemical stability and antibacterial activity. In addition, using clarithromycin as a model hydrophobic drug, the MEL nanomicelles exhibited high loading capacity and could be used for the controlled and sustained drug release in low-pH environments. Therefore, M. aphidis XM01 is an excellent candidate for efficient MEL production, and the prepared MEL nanomicelles have broad application prospects in the pharmaceutical and cosmetic fields. Supplementary Information The online version contains supplementary material available at 10.1007/s42995-022-00135-0.
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Affiliation(s)
- Guanshuo Yu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Xiaoxiang Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Chao Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Zhe Chi
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237 China
| | - Zhenming Chi
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237 China
| | - Guanglei Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237 China
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21
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Nascimento MF, Barreiros R, Oliveira AC, Ferreira FC, Faria NT. Moesziomyces spp. cultivation using cheese whey: new yeast extract-free media, β-galactosidase biosynthesis and mannosylerythritol lipids production. BIOMASS CONVERSION AND BIOREFINERY 2022:1-14. [PMID: 35669232 PMCID: PMC9159787 DOI: 10.1007/s13399-022-02837-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 05/09/2023]
Abstract
Mannosylerythritol lipids (MELs) are biosurfactants with excellent biochemical properties and a wide range of potential applications. However, high production costs, low productivity and unsatisfactory scale-up production have hampered commercial adoption. Herein, we report for the first time the β-galactosidase production by Moesziomyces spp. from different sugars (D-galactose, D-glucose and D-lactose), with D-galactose being the best β-galactosidase inducer, with 11.2 and 63.1 IU/mgbiomass, for Moesziomyces aphidis 5535 T and Moesziomyces antarcticus 5048 T, respectively. The production of this enzyme allows to break down D-lactose and thus to produce MEL directly from D-lactose or cheese whey (a cheese industry by-product). Remarkably, when CW was used as sole media component (carbon and mineral source), in combination with waste frying oil, MEL productivities were very close (1.40 and 1.31 gMEL/L/day) to the ones obtained with optimized medium containing yeast extract (1.92 and 1.50 gMEL/gsusbtrate), both for M. antarcticus and M. aphidis. The low-cost, facile and efficient process which generates large amounts of MELs potentiates its industrialization. Supplementary Information The online version contains supplementary material available at 10.1007/s13399-022-02837-y.
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Affiliation(s)
- Miguel Figueiredo Nascimento
- Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior TécnicoUniversidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Ricardo Barreiros
- Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior TécnicoUniversidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Ana Cristina Oliveira
- Laboratório Nacional de Energia E Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038 Lisbon, Portugal
| | - Frederico Castelo Ferreira
- Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior TécnicoUniversidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Nuno Torres Faria
- Department of Bioengineering and IBB-Institute for Biotechnology and Bioengineering, Instituto Superior TécnicoUniversidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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22
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Beck A, Vogt F, Hägele L, Rupp S, Zibek S. Optimization and Kinetic Modeling of a Fed-Batch Fermentation for Mannosylerythritol Lipids (MEL) Production With Moesziomyces aphidis. Front Bioeng Biotechnol 2022; 10:913362. [PMID: 35656195 PMCID: PMC9152284 DOI: 10.3389/fbioe.2022.913362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022] Open
Abstract
Mannosylerythritol lipids are glycolipid biosurfactants with many interesting properties. Despite the general interest in those molecules and the need for a robust process, studies on their production in bioreactors are still scarce. In the current study, the fermentative production of MEL in a bioreactor with Moesziomyces aphidis was performed using a defined mineral salt medium. Several kinetic process parameters like substrate consumption rates and product formation rates were evaluated and subsequently enhanced by increasing the biomass concentration through an exponential fed-batch strategy. The fed-batch approaches resulted in two to three fold increased dry biomass concentrations of 10.9–15.5 g/L at the end of the growth phase, compared with 4.2 g/L in the batch process. Consequently, MEL formation rates were increased from 0.1 g/Lh up to around 0.4 g/Lh during the MEL production phase. Thus, a maximum concentration of up to 50.5 g/L MEL was obtained when oil was added in excess, but high concentrations of residual fatty acids were also present in the broth. By adjusting the oil feeding to biomass-specific hydrolysis and MEL production rates, a slightly lower MEL concentration of 34.3 g/L was obtained after 170 h, but at the same time a very pure crude lipid extract with more than 90% MEL and a much lower concentration of remaining fatty acids. With rapeseed oil as substrate, the ideal oil-to-biomass ratio for full substrate conversion was found to be around 10 goil/gbiomass. In addition, off-gas analysis and pH trends could be used to assess biomass growth and MEL production. Finally, kinetic models were developed and compared to the experimental data, allowing for a detailed prediction of the process behavior in future experiments.
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Affiliation(s)
- Alexander Beck
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Franziska Vogt
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Lorena Hägele
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
| | - Steffen Rupp
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Susanne Zibek
- Institute of Interfacial Process Engineering and Plasma Technology IGVP, University of Stuttgart, Stuttgart, Germany
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
- *Correspondence: Susanne Zibek,
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23
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Liu X, Zhang L, Pang X, Wu Y, Wu Y, Shu Q, Chen Q, Zhang X. Synergistic antibacterial effect and mechanism of high hydrostatic pressure and mannosylerythritol Lipid-A on Listeria monocytogenes. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Yamauchi S, Furukawa M, Kawahara A, Sugahara T, Yamamoto S, Kitabayashi M, Sogabe A, Shimoda S, Hata E, Watanabe K, Yoneyama H, Aso H, Nochi T. Roles of mannosylerythritol lipid-B components in antimicrobial activity against bovine mastitis-causing Staphylococcus aureus. World J Microbiol Biotechnol 2022; 38:54. [PMID: 35149902 PMCID: PMC8837570 DOI: 10.1007/s11274-022-03243-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 01/19/2022] [Indexed: 11/26/2022]
Abstract
Mannosylerythritol lipid-B (MEL-B), which comprises ester-bonded hydrophilic ME and hydrophobic fatty acids, is a bio-surfactant with various unique properties, including antimicrobial activity against most gram-positive bacteria. The gram-positive Staphylococcus aureus is a causative pathogen of dairy cattle mastitis, which results in considerable economic loss in the dairy industry. Here, we demonstrate the efficacy of MEL-B as a disinfectant against bovine-derived S. aureus and elucidate a mechanism of action of MEL-B in the inhibition of bacterial growth. The growth of bovine mastitis causative S. aureus BM1006 was inhibited when cultured with MEL-B above 10 ppm. The activity of MEL-B required fatty acids (i.e., caprylic and myristoleic acids) as ME, the component of MEL-B lacking fatty acids, did not inhibit the growth of S. aureus even at high concentrations. Importantly, ME-bound fatty acids effectively inhibited the growth of S. aureus when compared with free fatty acids. Specifically, the concentrations of ME-bound fatty acids and free caprylic and myristoleic acids required to inhibit the growth of S. aureus were 10, 1442, and 226 ppm, respectively. The involvement of ME in the antimicrobial activity of MEL-B was confirmed by digestion of MEL-B with alkali, which dissociated ME and fatty acids. These results indicated that a mechanism of action of MEL-B in inhibiting the growth of S. aureus could be explained by the effective transporting of antimicrobial fatty acids to the bacterial surface via hydrophilic ME.
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Affiliation(s)
- Shinya Yamauchi
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Mutsumi Furukawa
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Akio Kawahara
- Toyobo Co., Ltd. Tsuruga Institute of Biotechnology, Fukui, 914-0047, Japan
| | - Tomohiro Sugahara
- Toyobo Co., Ltd. Tsuruga Institute of Biotechnology, Fukui, 914-0047, Japan
| | - Shuhei Yamamoto
- Toyobo Co., Ltd. Tsuruga Institute of Biotechnology, Fukui, 914-0047, Japan
| | | | - Atsushi Sogabe
- Toyobo Co., Ltd. Tsuruga Institute of Biotechnology, Fukui, 914-0047, Japan.,Toyobo Co., Ltd. Biochemical Department, Osaka, 530-8230, Japan
| | - So Shimoda
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Animal Microbiology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Eiji Hata
- Division of Bacterial and Parasitic Disease, National Institute of Animal Health, Bacterial Pathogenesis Research Unit, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-0856, Japan
| | - Kouichi Watanabe
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Hiroshi Yoneyama
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Animal Microbiology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Hisashi Aso
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan
| | - Tomonori Nochi
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, 468-1 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8572, Japan. .,Laboratory of Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan. .,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan. .,Division of Mucosal Vaccines, International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.
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25
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Shu Q, Wei T, Liu X, Liu S, Chen Q. The dough-strengthening and spore-sterilizing effects of mannosylerythritol lipid-A in frozen dough and its application in bread making. Food Chem 2022; 369:131011. [PMID: 34507086 DOI: 10.1016/j.foodchem.2021.131011] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/27/2021] [Accepted: 08/29/2021] [Indexed: 01/17/2023]
Abstract
Biosurfactants have been put into applications in breadmaking industry, while the effects of mannosylerythritol lipid-A (MEL-A) on gluten network of frozen dough, bread quality and microbial spoilage were firstly investigated in this study. Rheology and differential scanning calorimetry (DSC) analysis showed that MEL-A significantly improved the rheological properties of frozen dough and reduced the content of frozen water. Further experiments showed that MEL-A promoted the formation of aggregates by interacting with gluten protein, and strengthened the gluten network through molecular weight distribution measurement and microstructure observation, effectively avoiding the destruction of ice crystals. A series of bread assessments illustrated MEL-A improved the loaf volume, gas retention ability and textural property. In addition, MEL-A (1.5%) killed 99.97% of the vegetative cells of Bacillus cereus and 75.54% of the spores, and at the same time had a slight inactivation effect on yeast. These results indicate that MEL-A has broad application prospects in the baking industry and the storage stage of flour products.
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Affiliation(s)
- Qin Shu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Tianyu Wei
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Xiayu Liu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Siyu Liu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China.
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26
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Xu Z, Yang Q, Zhu Y. Transcriptome analysis reveals the molecular mechanisms of the novel Lactobacillus pentosus pentocin against Bacillus cereus. Food Res Int 2022; 151:110840. [PMID: 34980379 DOI: 10.1016/j.foodres.2021.110840] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/29/2021] [Accepted: 11/27/2021] [Indexed: 12/20/2022]
Abstract
The objective of this study was to investigate the antibacterial effect and mechanism of Lactobacillus pentosus pentocin against Bacillus cereus. The dynamic growth of B. cereus showed that the pentocin had strong antibacterial activity against the strain. The antibacterial mechanism focused on cytomembrane destruction, biofilms formation, DNA replication and protein synthesis of B. cereus. The scanning electron microscopy, transmission electron microscopy and flow cytometry analysis illustrated that the cytomembranes were destroyed, causing the leakage of internal cellular components. Transcriptome sequencing indicated that the genes (KinB, KinC and Spo0B) in two component systems signal pathway were down-regulated, which resulted in the inhibition of the spores and biofilms formation of B. cereus. The phosphorylation and autoinducer-2 import were inhibited by down-regulating the expression levels of LuxS and LsrB genes in quorum sensing signal pathway, which also suppressed biofilms formation of B. cereus. The K+ leakage activated the K+ transport channels by up-relating the genes (KdpA, KdpB and KdpC), promoting the entry of K+ from the extracellular. In addition, the pentocin interfered DNA replication and protein synthesis by regulating the genes associated with DNA replication (dnaX and holB), RNA degradation (cshA, rho, rnj, deaD, rny, dnaK, groEL and hfq) and ribosome function (rpsA, rpsO and rplS). In this article, we provide some novel insights into the molecular mechanism responsible for high antibacterial activity of the L. pentosus pentocin against B. cereus. And the pentocin might be a very promising natural preservative for controlling the B. cereus contaminations in foods.
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Affiliation(s)
- Zhiqiang Xu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Qingli Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China.
| | - Yinglian Zhu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China.
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27
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Solano-González S, Solano-Campos F. Production of mannosylerythritol lipids: biosynthesis, multi-omics approaches, and commercial exploitation. Mol Omics 2022; 18:699-715. [DOI: 10.1039/d2mo00150k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compilation of resources regarding MEL biosynthesis, key production parameters; available omics resources and current commercial applications, for smut fungi known to produce MELs.
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Affiliation(s)
- Stefany Solano-González
- Universidad Nacional, Escuela de Ciencias Biológicas, Laboratorio de Bioinformática Aplicada, Heredia, Costa Rica
| | - Frank Solano-Campos
- Universidad Nacional, Escuela de Ciencias Biológicas, Laboratorio de Biotecnología de Plantas, Heredia, Costa Rica
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28
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Fermentative Production of Mannosylerythritol Lipids using Sweetwater as Waste Substrate by Pseudozyma antarctica (MTCC 2706). TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-2020-2272] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Mannosylerythritol lipids are glycolipid biosurfactants with promising industrial applications. However, their commercial production is hindered due to its high production cost. The current study investigates the use of sweetwater, a by-product of the fat-splitting industry in combination with soybean oil for the production of mannosylerythritol lipids using Pseudozyma antarctica (MTCC 2706). The optimum sweetwater and soybean oil concentration of 22% and 7% (w/v) yielded 7.52 g L–1and 21.5 g L–1 mannosylerythritol lipids at shake flask and fermenter level respectively. The structure and functional groups of mannosylerythritol lipids were confirmed by fourier transform infrared (FTIR) spectroscopy, liquid chromatography-mass spectrometry (LC/MS) and 1H- and 13C-nuclear magnetic resonance (NMR) analysis. Surfactant properties, such as surface tension, critical micelle concentration, foaming and emulsification of mannosylerythritol lipids were also explored.
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29
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Goel N, Fatima SW, Kumar S, Sinha R, Khare SK. Antimicrobial resistance in biofilms: Exploring marine actinobacteria as a potential source of antibiotics and biofilm inhibitors. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 30:e00613. [PMID: 33996521 PMCID: PMC8105627 DOI: 10.1016/j.btre.2021.e00613] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/19/2021] [Accepted: 03/21/2021] [Indexed: 12/12/2022]
Abstract
Antimicrobial resistance (AMR) is one of the serious global public health threats that require immediate action. With the emergence of new resistance mechanisms in infection-causing microorganisms such as bacteria, fungi, and viruses, AMR threatens the effective prevention and treatment of diseases caused by them. This has resulted in prolonged illness, disability, and death. It has been predicted that AMR will lead to over ten million deaths by 2050. The rapid spread of multidrug-resistant bacteria is also causing old antibiotics to become ineffective. Among the diverse factors contributing to AMR, intrinsic biofilm development has been highlighted as an essential contributing facet. Moreover, biofilm-derived antibiotic tolerance leads to serious recurrent chronic infections. Therefore, the discovery of novel bioactive molecules is a potential solution that can help combat AMR. To achieve this, sustained mining of novel antimicrobial leads from actinobacteria, particularly marine actinobacteria, can be a promising strategy. Given their vast diversity and different habitats, the extraordinary capacity of actinobacteria can be tapped to synthesize new antibiotics or bioactive molecules for biofilm inhibition. Advanced screening strategies and novel approaches in the field of modern biochemical and molecular biology can be used to detect such new compounds. In view of this, the present review focuses on understanding some of the recent strategies to inhibit biofilm formation and explores the potential role of marine actinobacteria as sources of novel antibiotics and biofilm inhibitor molecules.
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Affiliation(s)
- Nikky Goel
- Department of Chemistry, Indian Institute of Technology Delhi, India
| | | | - Sumit Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, India
| | | | - Sunil K. Khare
- Department of Chemistry, Indian Institute of Technology Delhi, India
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30
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Shu Q, Lou H, Wei T, Zhang X, Chen Q. Synergistic antibacterial and antibiofilm effects of ultrasound and MEL-A against methicillin-resistant Staphylococcus aureus. ULTRASONICS SONOCHEMISTRY 2021; 72:105452. [PMID: 33388695 PMCID: PMC7803934 DOI: 10.1016/j.ultsonch.2020.105452] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/13/2020] [Accepted: 12/22/2020] [Indexed: 05/06/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is drug-resistant and biofilm-forming pathogenic bacteria with severe morbidity and mortality, and has been continuously detected in food products in recent years. Mannosylerythritol lipids (MELs) are novel biosurfactants and perform antibacterial property against gram-positive bacteria. Ultrasound has been applied into food sterilization as non-thermal techniques and has advantage of maintaining food nutrition and flavor over heat pasteurization. In this work, the synergistic treatment of ultrasound and MEL-A was used to combat planktonic cells and biofilm of MRSA. As a result, the combined treatment has exhibited remarkable antibacterial effect proved by enumeration of viable microbes. Furthermore, flow cytometry, scanning electron microscopy and transmission electron microscopy revealed ultrasound has enhanced the inhibitory effect of MEL-A through exacerbating cell membrane damage. On the other hand, the collaborating working modes to eradicate MRSA biofilm were disturbing cell adhesion to surface by MEL-A and destructing mature biofilm mechanically by ultrasound, reaching to over 90% of clearance rate. The findings of this study illustrated the synergistic antimicrobial mechanism of ultrasound and MEL-A treatments, and offered theoretical basis for their potential applications in food preservation.
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Affiliation(s)
- Qin Shu
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Hanghang Lou
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Tianyu Wei
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Xinglin Zhang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, PR China.
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31
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Yuan L, Mgomi FC, Xu Z, Wang N, He G, Yang Z. Understanding of food biofilms by the application of omics techniques. Future Microbiol 2021; 16:257-269. [PMID: 33595346 DOI: 10.2217/fmb-2020-0218] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Biofilms constitute a protective barrier for foodborne pathogens to survive under stressful food processing conditions. Therefore, studies into the development and control of biofilms by novel techniques are vital for the food industry. In recent years, foodomics techniques have been developed for biofilm studies, which contributed to a better understanding of biofilm behavior, physiology, composition, as well as their response to antibiofilm methods at different molecular levels including genes, RNA, proteins and metabolic metabolites. Throughout this review, the main studies where foodomics tools used to explore the mechanisms for biofilm formation, dispersal and elimination were reviewed. The data summarized from relevant studies are important to design novel and appropriate biofilm elimination methods for enhancing food safety at any point of food processing lines.
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Affiliation(s)
- Lei Yuan
- College of Food Science & Engineering, Yangzhou University, Yangzhou, 225127, China.,Fujian Provincial Key Laboratory of Food Microbiology & Enzyme Engineering, Xiamen, 361021, China
| | - Fedrick C Mgomi
- College of Food Science & Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Zhenbo Xu
- School of Food Science & Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Ni Wang
- College of Biosystems Engineering & Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Guoqing He
- College of Biosystems Engineering & Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Zhenquan Yang
- College of Food Science & Engineering, Yangzhou University, Yangzhou, 225127, China
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32
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Shu Q, Lou H, Wei T, Liu X, Chen Q. Contributions of Glycolipid Biosurfactants and Glycolipid-Modified Materials to Antimicrobial Strategy: A Review. Pharmaceutics 2021; 13:227. [PMID: 33562052 PMCID: PMC7914807 DOI: 10.3390/pharmaceutics13020227] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/23/2021] [Accepted: 02/02/2021] [Indexed: 12/22/2022] Open
Abstract
Glycolipid biosurfactants are natural amphiphiles and have gained particular interest recently in their biodegradability, diversity, and bioactivity. Microbial infection has caused severe morbidity and mortality and threatened public health security worldwide. Glycolipids have played an important role in combating many diseases as therapeutic agents depending on the self-assembly property, the anticancer and anti-inflammatory properties, and the antimicrobial properties, including antibacterial, antifungal, and antiviral effects. Besides, their role has been highlighted as scavengers in impeding the biofilm formation and rupturing mature biofilm, indicating their utility as suitable anti-adhesive coating agents for medical insertional materials leading to a reduction in vast hospital infections. Notably, glycolipids have been widely applied to the synthesis of novel antimicrobial materials due to their excellent amphipathicity, such as nanoparticles and liposomes. Accordingly, this review will provide various antimicrobial applications of glycolipids as functional ingredients in medical therapy.
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Affiliation(s)
| | | | | | | | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; (Q.S.); (H.L.); (T.W.); (X.L.)
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33
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A putative transporter gene PtMMF1-deleted strain produces mono-acylated mannosylerythritol lipids in Pseudozyma tsukubaensis. Appl Microbiol Biotechnol 2020; 104:10105-10117. [DOI: 10.1007/s00253-020-10961-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 10/06/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023]
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Liu X, Shu Q, Chen Q, Pang X, Wu Y, Zhou W, Wu Y, Niu J, Zhang X. Antibacterial Efficacy and Mechanism of Mannosylerythritol Lipids-A on Listeria monocytogenes. Molecules 2020; 25:E4857. [PMID: 33096808 PMCID: PMC7587930 DOI: 10.3390/molecules25204857] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 12/22/2022] Open
Abstract
Mannosylerythritol lipids-A (MEL-A) is a novel biosurfactant with excellent surface activity and potential biomedical applications. In this study, we explored the antibacterial activity and the underlying mechanisms of MEL-A against the important food-borne pathogen Listeria monocytogenes. The bacterial growth and survival assays revealed a remarkable antibacterial activity of MEL-A. Since MEL-A is a biosurfactant, we examined the cell membrane integrity and morphological changes of MEL-A-treated bacteria by biochemical assays and flow cytometry analysis and electron microscopes. The results showed obvious damaging effects of MEL-A on the cell membrane and morphology. To further explore the antibacterial mechanism of MEL-A, a transcriptome analysis was performed, which identified 528 differentially expressed genes (DEGs). Gene ontology (GO) analysis revealed that the gene categories of membrane, localization and transport were enriched among the DEGs, and the analysis of the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways demonstrated significant changes in the maltodextrin ABC transporter system and stress response system. Furthermore, the growth of L. monocytogenes could also be significantly inhibited by MEL-A in milk, a model of a real food system, suggesting that MEL-A could be potentially applied as an natural antimicrobial agent to control food-borne pathogens in the food industry.
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Affiliation(s)
- Xiayu Liu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Qin Shu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Qihe Chen
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Xinxin Pang
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Yansha Wu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Wanyi Zhou
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Yajing Wu
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
| | - Jianrui Niu
- College of Agriculture and Forestry, Linyi University, Linyi 276005, China
| | - Xinglin Zhang
- Department of Food Science and Nutrition, Zhejiang University, Yuhangtang Rd.866, Hangzhou 310058, China; (X.L.); (Q.S.); (Q.C.); (X.P.); (Y.W.); (W.Z.); (Y.W.)
- College of Agriculture and Forestry, Linyi University, Linyi 276005, China
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Zhang W, Guo Y, Cheng Y, Zhao W, Zheng Y, Qian H. Ultrasonic-assisted enzymatic extraction of Sparassis crispa polysaccharides possessing protective ability against H 2O 2-induced oxidative damage in mouse hippocampal HT22 cells. RSC Adv 2020; 10:22164-22175. [PMID: 35516616 PMCID: PMC9054537 DOI: 10.1039/d0ra01581d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 05/23/2020] [Indexed: 01/20/2023] Open
Abstract
Extraction optimization, structural characterization, and neuroprotective effects of polysaccharides from Sparassis crispa.
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Affiliation(s)
- Wenyi Zhang
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- P. R. China
- School of Food Science and Technology
| | - Yahui Guo
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- P. R. China
- School of Food Science and Technology
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- P. R. China
- School of Food Science and Technology
| | - Wenjin Zhao
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- P. R. China
- School of Food Science and Technology
| | - Yuenan Zheng
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- P. R. China
- School of Food Science and Technology
| | - He Qian
- State Key Laboratory of Food Science and Technology
- Jiangnan University
- Wuxi 214122
- P. R. China
- School of Food Science and Technology
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