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Wu H, Liu Q, Li J, Leng X, He Y, Liu Y, Zhang X, Ouyang Y, Liu Y, Liang W, Xu C. Tumor-Resident Microbiota-Based Risk Model Predicts Neoadjuvant Therapy Response of Locally Advanced Esophageal Squamous Cell Carcinoma Patients. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309742. [PMID: 39268829 DOI: 10.1002/advs.202309742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 07/11/2024] [Indexed: 09/15/2024]
Abstract
Few predictive biomarkers exist for identifying patients who may benefit from neoadjuvant therapy (NAT). The intratumoral microbial composition is comprehensively profiled to predict the efficacy and prognosis of patients with esophageal squamous cell carcinoma (ESCC) who underwent NAT and curative esophagectomy. Least Absolute Shrinkage and Selection Operator (LASSO) regression analysis is conducted to screen for the most closely related microbiota and develop a microbiota-based risk prediction (MRP) model on the genera of TM7x, Sphingobacterium, and Prevotella. The predictive accuracy and prognostic value of the MRP model across multiple centers are validated. The MRP model demonstrates good predictive accuracy for therapeutic responses in the training, validation, and independent validation sets. The MRP model also predicts disease-free survival (p = 0.00074 in the internal validation set and p = 0.0017 in the independent validation set) and overall survival (p = 0.00023 in the internal validation set and p = 0.11 in the independent validation set) of patients. The MRP-plus model basing on MRP, tumor stage, and tumor size can also predict the patients who can benefit from NAT. In conclusion, the developed MRP and MRP-plus models may function as promising biomarkers and prognostic indicators accessible at the time of diagnosis.
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Affiliation(s)
- Hong Wu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, P. R. China
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, P. R. China
- Jinfeng Laboratory, Chongqing, 400039, P. R. China
- Yu-Yue Pathology Scientific Research Center, Chongqing, 400039, P. R. China
| | - Qianshi Liu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, P. R. China
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, P. R. China
- Jinfeng Laboratory, Chongqing, 400039, P. R. China
- Yu-Yue Pathology Scientific Research Center, Chongqing, 400039, P. R. China
| | - Jingpei Li
- Thoracic Surgery Department, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510230, P. R. China
| | - Xuefeng Leng
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, P. R. China
| | - Yazhou He
- Department of Oncology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Yiqiang Liu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, P. R. China
- Jinfeng Laboratory, Chongqing, 400039, P. R. China
| | - Xia Zhang
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, P. R. China
- Institute of Pathology and Southwest Cancer Center, Ministry of Education of China, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Chongqing, 400038, P. R. China
| | - Yujie Ouyang
- Acupuncture and Massage College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610072, P. R. China
| | - Yang Liu
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610041, P. R. China
| | - Wenhua Liang
- Thoracic Surgery Department, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510230, P. R. China
| | - Chuan Xu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072, P. R. China
- Jinfeng Laboratory, Chongqing, 400039, P. R. China
- Yu-Yue Pathology Scientific Research Center, Chongqing, 400039, P. R. China
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Jimoh AA, Lin J. Biosurfactant: A new frontier for greener technology and environmental sustainability. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109607. [PMID: 31505408 DOI: 10.1016/j.ecoenv.2019.109607] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/13/2019] [Accepted: 08/22/2019] [Indexed: 05/26/2023]
Abstract
Petroleum hydrocarbons, oil, heavy metals pollution is becoming additional severe problem due to the growing call for crude oil and crude oil products related products in several fields of application. Such pollution have fascinated much considerations and attractions as it leads to ecological damages in both marines, aquatic and terrestrial ecosystems. Thus, different techniques including chemical surfactants and complex technologies have been proposed for their clean up from the environment, which in turn has detrimental effects on the environment. As of late, biosurfactant compounds have added much deliberation since they are considered as a reasonable option and eco-accommodating materials for remediation technology. The present society is confronting a few difficulties of usage, authorizing ecological protection and environmental change for the next generations. Biosurfactants hold the special property of minimizing and reducing the interfacial tension of liquids. Such features endure biosurfactants to afford a major part in emulsification, de-emulsification, biodegradability, foam formation, washing performance, surface activity, and detergent formulation, which have potential applications in the diverse industrial set-up. Conversations on cost-effective technologies, renewable materials, novel synthesis, downstream, upstream, emerging characterization techniques, molecular, and genetical engineering are substantial to produce biosurfactant of quality and quantity. Therefore, greater attention is being paid to biosurfactant production by identifying their environmental, and biotechnological applications. Be that as it may, the extravagant cost drew in with biosurfactants biotechnological synthesis and recovery can hamper their application in those areas. Notwithstanding these costs, biosurfactants can be used as these parts shows outstandingly high benefits that can at present beat the expenses incurred in the initial purification and downstream processes. Biosurfactant production by microorganisms is relatively considered one of the crucial know-how for improvement, growth, advancement, and environmental sustainability of the 21st century. There is a developing conversation around environmental safety and the significant role that biosurfactants will progressively play soon, for instance, the use of renewable by-products as substrates, potential reduction, re-use and recycling of waste and waste products. The review confers the usefulness of biosurfactants in the removal of environmental contaminants and, consequently, expanding environmental safety and drive towards greener technology.
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Affiliation(s)
- Abdullahi Adekilekun Jimoh
- Discipline of Microbiology, School of Life Sciences, University of KwaZulu-Natal (Westville), Private Bag X 54001, Durban, South Africa.
| | - Johnson Lin
- Discipline of Microbiology, School of Life Sciences, University of KwaZulu-Natal (Westville), Private Bag X 54001, Durban, South Africa
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Kannan S, Krishnamoorthy G, Kulanthaiyesu A, Marudhamuthu M. Effect of biosurfactant derived from Vibrio natriegens MK3 against Vibrio harveyi biofilm and virulence. J Basic Microbiol 2019; 59:936-949. [PMID: 31347191 DOI: 10.1002/jobm.201800706] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/10/2019] [Accepted: 06/29/2019] [Indexed: 12/29/2022]
Abstract
Vibrio harveyi is a marine luminous pathogen, which causes biofilm-mediated infections, pressures the search for an innovative alternate approach to strive against vibriosis in aquaculture. This study anticipated to explore the effect of glycolipid biosurfactant as an antipathogenic against V. harveyi to control vibriosis. In this study, 27 bacterial strains were isolated from marine soil sediments. Out of these, 11 strains exhibited surfactant activity and the strain MK3 showed high emulsification index. The potent strain was identified as Vibrio natriegens and named as V. natriegens MK3. The extracted biosurfactant was purified using high-performance liquid chromatography and it was efficient to decrease the surface tension of the growth medium up to 21 mN/m. The functional group and composition of the biosurfactant were determined by Fourier-transform infrared spectroscopy and nuclear magnetic resonance spectroscopy spectral studies and the nature of the biosurfactant was identified as glycolipid. The surfactant was capable of reducing the biofilm formation, bioluminescence, extracellular polysaccharide synthesis, and quorum sensing in marine shrimp pathogen V. harveyi. The antagonistic effect of biosurfactant was evaluated against V. harveyi-infected brine shrimp Artemia salina. This study reveals that biosurfactant can be considered for the management of biofilm-related aquatic infections.
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Affiliation(s)
- Suganya Kannan
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India
| | - Govindan Krishnamoorthy
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India
| | - Arunkumar Kulanthaiyesu
- Department of Plant Science, School of Biological Sciences, Central University of Kerala, Periye, Kerala, India
| | - Murugan Marudhamuthu
- Department of Microbial Technology, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India
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Jimoh AA, Lin J. Enhancement of Paenibacillus sp. D9 Lipopeptide Biosurfactant Production Through the Optimization of Medium Composition and Its Application for Biodegradation of Hydrophobic Pollutants. Appl Biochem Biotechnol 2018; 187:724-743. [PMID: 30043149 DOI: 10.1007/s12010-018-2847-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/18/2018] [Indexed: 12/14/2022]
Abstract
Interests in biosurfactant in industrial and environmental applications have increased considerably in recent years, owing to their potential benefits over synthetic counterparts. The present study aimed at analyzing the stability and oil removal efficiency of a new lipopeptide biosurfactant produced by Paenibacillus sp. D9 and its feasibility of its use in biotechnological applications. Paenibacillus sp. D9 was evaluated for optimal growth conditions and improved production yield of lipopeptide biosurfactant with variations in different substrate parameters such as carbon (C), nitrogen (N), C:N: ratio, metal supplements, pH, and temperature. Enhanced biosurfactant production was observed when using diesel fuel and ammonium sulfate as carbon and nitrogen source respectively. The maximum biosurfactant yield of 4.11 g/L by Paenibacillus sp. D9 occurred at a C/N ratio of 3:1, at pH 7.0, 30 °C, 4.0 mM MgSO4, and 1.5% inoculum size. The D9 biosurfactant was found to retain surface-active properties under the extreme conditions such as high thermal, acidic, alkaline, and salt concentration. The ability to emulsify further emphasizes its potential usage in biotechnological application. Additionally, the lipopeptide biosurfactant exhibited good performance in the degradation of highly toxic substances when compared with chemical surfactant, which proposes its probable application in biodegradation, microbial-enhanced oil recovery or bioremediation. Furthermore, the biosurfactants were effective in a test to stimulate the solubilization of hydrophobic pollutants in both liquid environments removing 49.1 to 65.1% diesel fuel including hydrophobic pollutants. The study highlights the usefulness of optimization of culture parameters and their effects on biosurfactant production, high stability, improved desorption, and solubilization of hydrophobic pollutants.
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Affiliation(s)
- Abdullahi Adekilekun Jimoh
- School of Life Sciences, University of KwaZulu-Natal (Westville campus), Private Bag X54001, Durban, 4000, South Africa
| | - Johnson Lin
- School of Life Sciences, University of KwaZulu-Natal (Westville campus), Private Bag X54001, Durban, 4000, South Africa.
- College of Agriculture, Engineering, and Science, School of Life Sciences, (Westville campus), Private Bag X54001, Durban, 4000, South Africa.
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Nurfarahin AH, Mohamed MS, Phang LY. Culture Medium Development for Microbial-Derived Surfactants Production-An Overview. Molecules 2018; 23:molecules23051049. [PMID: 29723959 PMCID: PMC6099601 DOI: 10.3390/molecules23051049] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/22/2018] [Accepted: 04/24/2018] [Indexed: 12/14/2022] Open
Abstract
Surfactants are compounds that can reduce the surface tension between two different phases or the interfacial tension of the liquid between water and oil, possessing both hydrophilic and hydrophobic moieties. Biosurfactants have traits that have proven to be advantageous over synthetic surfactants, but these compounds do not compete economically with synthetic surfactants. Different alternatives increase the yield of biosurfactants; development of an economical production process and the usage of cheaper substrates during process have been employed. One of the solutions relies on the suitable formulation of a production medium by including alternative raw materials sourced from agro-wastes, hydrocarbons, or by-products of a process might help in boosting the biosurfactant production. Since the nutritional factors required will be different among microorganisms, the establishment of a suitable formulation for biosurfactant production will be challenging. The present review describes various nutrients and elements considered in the formulation of a production medium with an approach focusing on the macronutrient (carbon, nitrogen source, and C/N ratio), minerals, vitamins, metabolic regulators, and salinity levels which may aid in the study of biosurfactant production in the future.
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Affiliation(s)
- Abdul Hamid Nurfarahin
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400 UPM, Malaysia.
| | - Mohd Shamzi Mohamed
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400 UPM, Malaysia.
- Bioprocessing and Biomanufacturing Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400 UPM, Malaysia.
| | - Lai Yee Phang
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400 UPM, Malaysia.
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Ghazala I, Bouassida M, Krichen F, Manuel Benito J, Ellouz-Chaabouni S, Haddar A. Anionic lipopeptides from Bacillus mojavensis I4 as effective antihypertensive agents: Production, characterization, and identification. Eng Life Sci 2017; 17:1244-1253. [PMID: 32624752 DOI: 10.1002/elsc.201700020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 07/23/2017] [Accepted: 07/31/2017] [Indexed: 11/06/2022] Open
Abstract
A new isolated Bacillus mojavensis strain I4 was found as producer of biosurfactants by different screening methods, such as parafilm M test, hemolytic activity, oil displacement test, emulsification index, surface tension, and lipase production assay. Enhanced biosurfactants production was obtained using glucose and glutamic acid as carbon and nitrogen sources, respectively. The optimal production of the biosurfactants was obtained by using a C/N ratio of 17, pH of 7.0, and temperature of 37°C. The surface tension was reduced to 29 mN/m and the emulsification index E24 of 62% was achieved after 72 h of culture. The purified biosurfactants showed stability with regard to surface tension reduction and emulsification in a wide range of temperatures (4-120°C), pH (4-10), and salinity (2-12% of NaCl). The thin-layer chromatography showed that the produced biosurfactants were lipopeptides. The biosurfactants were characterized as a group of anionic lipopeptides with zeta potential measurement. Chromatographic characterization using HPLC revealed that I4 lipopeptides contained numerous isoforms and surfactin was the major component. Moreover, the I4 lipopeptides showed interesting angiotensin-converting enzyme-inhibitory activity.
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Affiliation(s)
- Imen Ghazala
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering Sfax University Sfax Tunisia
| | - Mouna Bouassida
- Enzyme Bioconversion Unit (UR13ES74), National School of Engineering Sfax University Sfax Tunisia
| | - Fatma Krichen
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering Sfax University Sfax Tunisia
| | | | - Semia Ellouz-Chaabouni
- Enzyme Bioconversion Unit (UR13ES74), National School of Engineering Sfax University Sfax Tunisia.,Common Service Unit of Bioreactor coupled with an ultrafilter, National School of Engineering Sfax University Sfax Tunisia
| | - Anissa Haddar
- Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering Sfax University Sfax Tunisia
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Acevedo F, Torres P, Oomah BD, de Alencar SM, Massarioli AP, Martín-Venegas R, Albarral-Ávila V, Burgos-Díaz C, Ferrer R, Rubilar M. Volatile and non-volatile/semi-volatile compounds and in vitro bioactive properties of Chilean Ulmo (Eucryphia cordifolia Cav.) honey. Food Res Int 2017; 94:20-28. [PMID: 28290363 DOI: 10.1016/j.foodres.2017.01.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 10/28/2016] [Accepted: 01/24/2017] [Indexed: 10/20/2022]
Abstract
Ulmo honey originating from Eucryphia cordifolia tree, known locally in the Araucania region as the Ulmo tree is a natural product with valuable nutritional and medicinal qualities. It has been used in the Mapuche culture to treat infections. This study aimed to identify the volatile and non-volatile/semi-volatile compounds of Ulmo honey and elucidate its in vitro biological properties by evaluating its antioxidant, antibacterial, antiproliferative and hemolytic properties and cytotoxicity in Caco-2 cells. Headspace volatiles of Ulmo honey were isolated by solid-phase microextraction (SPME); non-volatiles/semi-volatiles were obtained by removing all saccharides with acidified water and the compounds were identified by GC/MS analysis. Ulmo honey volatiles consisted of 50 compounds predominated by 20 flavor components. Two of the volatile compounds, lyrame and anethol have never been reported before as honey compounds. The non-volatile/semi-volatile components of Ulmo honey comprised 27 compounds including 13 benzene derivatives accounting 75% of the total peak area. Ulmo honey exhibited weak antioxidant activity but strong antibacterial activity particularly against gram-negative bacteria and methicillin-resistant Staphylococcus aureus (MRSA), the main strain involved in wounds and skin infections. At concentrations >0.5%, Ulmo honey reduced Caco-2 cell viability, released lactate dehydrogenase (LDH) and increased reactive oxygen species (ROS) production in a dose dependent manner in the presence of foetal bovine serum (FBS). The wide array of volatile and non-volatile/semi-volatile constituents of Ulmo honey rich in benzene derivatives may partly account for its strong antibacterial and antiproliferative properties important for its therapeutic use. Our results indicate that Ulmo honey can potentially inhibit cancer growth at least partly by modulating oxidative stress.
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Affiliation(s)
- Francisca Acevedo
- Scientific and Technological Bioresource Nucleus, BIOREN, Universidad de La Frontera, Casilla 54-D, Temuco, Chile; Department of Basic Sciences, Faculty of Medicine, Universidad de La Frontera, Casilla 54-D, Temuco, Chile.
| | - Paulina Torres
- Scientific and Technological Bioresource Nucleus, BIOREN, Universidad de La Frontera, Casilla 54-D, Temuco, Chile
| | - B Dave Oomah
- Retired, formerly with the National Bioproducts and Bioprocesses Program, Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Summerland, BC, V0H 1Z0, Canada
| | - Severino Matias de Alencar
- Escola Superior de Agricultura Luiz de Queiroz (ESALQ), Universidade de São Paulo (USP), Piracicaba, SP, Brazil
| | - Adna Prado Massarioli
- Escola Superior de Agricultura Luiz de Queiroz (ESALQ), Universidade de São Paulo (USP), Piracicaba, SP, Brazil
| | - Raquel Martín-Venegas
- Department de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XIII s/n, 08028 Barcelona, Spain
| | - Vicenta Albarral-Ávila
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
| | - César Burgos-Díaz
- Agriaquaculture Nutritional Genomic Center CGNA, Technology and Processes Unit, Temuco 4791057, Chile
| | - Ruth Ferrer
- Department de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XIII s/n, 08028 Barcelona, Spain
| | - Mónica Rubilar
- Scientific and Technological Bioresource Nucleus, BIOREN, Universidad de La Frontera, Casilla 54-D, Temuco, Chile; Department of Chemical Engineering, Universidad de La Frontera, Casilla 54-D, Temuco, Chile
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Burgos-Díaz C, Gallardo M, Morales E, Piornos JA, Marqués AM, Rubilar M. Utilization of proteins from AluProt-CGNA (a novel protein-rich lupin variety) in the development of oil-in-water multilayer emulsion systems. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201500260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- César Burgos-Díaz
- Agriaquaculture Nutritional Genomic Center, CGNA; Technology and Processes Unit; Temuco Chile
| | - Miguel Gallardo
- Scientific Technological Bioresource Nucleus, BIOREN; Universidad de La Frontera; Temuco Chile
| | - Eduardo Morales
- Agriaquaculture Nutritional Genomic Center, CGNA; Technology and Processes Unit; Temuco Chile
| | - José A. Piornos
- Agriaquaculture Nutritional Genomic Center, CGNA; Technology and Processes Unit; Temuco Chile
| | - Ana M. Marqués
- Laboratory of Microbiology, Faculty of Pharmacy; University of Barcelona; Barcelona Spain
| | - Mónica Rubilar
- Agriaquaculture Nutritional Genomic Center, CGNA; Technology and Processes Unit; Temuco Chile
- Scientific Technological Bioresource Nucleus, BIOREN; Universidad de La Frontera; Temuco Chile
- Department of Chemical Engineering; Universidad de La Frontera; Temuco Chile
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Chakraborty S, Ghosh M, Chakraborti S, Jana S, Sen KK, Kokare C, Zhang L. Biosurfactant produced from Actinomycetes nocardiopsis A17: Characterization and its biological evaluation. Int J Biol Macromol 2015; 79:405-12. [PMID: 25989147 DOI: 10.1016/j.ijbiomac.2015.04.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 04/27/2015] [Accepted: 04/28/2015] [Indexed: 10/23/2022]
Abstract
This investigation aims to isolate an Actinomycetes strain producing a biosurfactant from the unexplored region of industrial and coal mine areas. Actinomycetes are selected for this study as their novel chemistry was not exhausted and they have tremendous potential to produce bioactive secondary metabolites. The biosurfactant was characterized and further needed to be utilized for pharmaceutical dosage form. Isolation, purification, screening, and characterization of the Actinomycetes A17 were done followed by its fermentation in optimized conditions. The cell-free supernatant was used for the extraction of the biosurfactant and precipitated by cold acetone. The dried precipitate was purified by TLC and the emulsification index, surface tension and CMC were determined. The isolated strain with preferred results was identified as Actinomycetes nocardiopsis A17 with high foam-forming properties. It gives lipase, amylase, gelatinase, and protease activity. The emulsification index was found to be 93±0.8 with surface tension 66.67 dyne/cm at the lowest concentration and cmc 0.6 μg/ml. These biosurfactants were characterized by Fourier transform infra red (FT-IR) spectroscopy and liquid chromatography-mass spectrometry (LC-MS). Therefore, it can be concluded that the biosurfactant produced by Actinomycetes nocardiopsis sp. strain A17 was found to have satisfactory results with high surface activity and emulsion-forming ability.
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Affiliation(s)
- Samrat Chakraborty
- Department of Pharmaceutics, Gupta College of Technological Sciences, Asansol 713301, WB, India
| | - Mandakini Ghosh
- Department of Pharmaceutics, Gupta College of Technological Sciences, Asansol 713301, WB, India
| | - Srijita Chakraborti
- Department of Pharmaceutics, Gupta College of Technological Sciences, Asansol 713301, WB, India
| | - Sougata Jana
- Department of Pharmaceutics, Gupta College of Technological Sciences, Asansol 713301, WB, India.
| | - Kalyan Kumar Sen
- Department of Pharmaceutics, Gupta College of Technological Sciences, Asansol 713301, WB, India
| | - Chandrakant Kokare
- Department of Pharmaceutics, Sinhgad Institute of Pharmacy, Narhe, Pune 411 041, India
| | - Lixin Zhang
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
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Biosurfactant production by AL 1.1, a Bacillus licheniformis strain isolated from Antarctica: production, chemical characterization and properties. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-015-1045-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Sharma D, Saharan BS, Chauhan N, Procha S, Lal S. Isolation and functional characterization of novel biosurfactant produced by Enterococcus faecium. SPRINGERPLUS 2015; 4:4. [PMID: 25674491 PMCID: PMC4320184 DOI: 10.1186/2193-1801-4-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 12/16/2014] [Indexed: 02/06/2023]
Abstract
The objective of the present study was to isolate the biosurfactant (BS) producing lactic acid bacteria (LAB) from traditional fermented food (buttermilk) and its functional and structural characterization. BS isolated from strain MRTL9 reduced surface tension from 72.0 to 40.2 mN m(-1). The critical micelle concentration (CMC) of BS was 2.25 mg ml(-1) with emulsification efficiency (E24) after 24 h of 64% against kerosene oil. The cell bound BS was partially purified by silica gel column chromatography and found as glycolipid. The gas chromatography and mass spectroscopy data revealed the fatty acid as hexadecanoic acid. Xylose was determined as hydrophilic moiety. The BS was found to be stable to pH changes over a range of 4.0-12.0, being most effective at pH 7 and showed no apparent loss of surface tension and emulsification efficiency after heat treatment at 120°C for 15 min. The outcomes of cellular toxicity showed lower toxicity of BS in comparison to SDS and rhamnolipids. Current study confirmed the preventive anti-adhesion activity of BS. These amphiphilic molecules, interferes with the microbial adhesion and found to be least cytotoxic with cellular compatibility with mouse fibroblasts cells.
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Affiliation(s)
- Deepansh Sharma
- Department of Microbiology, Kurukshetra University, Kurukshetra, 136 119 INDIA
- Dairy Microbiology Division, National Dairy Research Institute, Karnal, Haryana 132 001 India
| | | | - Nikhil Chauhan
- Division of Microbiology and Immunology, Vector Control Research Center, Puducherry, 605006 India
| | - Suresh Procha
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119 India
| | - Sohan Lal
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119 India
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Verma A, Gupta N, Verma SK, Das MD. Multifactorial Approach to Biosurfactant Production by Adaptive Strain Candida tropicalis MTCC 230 in the Presence of Hydrocarbons. J SURFACTANTS DETERG 2014. [DOI: 10.1007/s11743-014-1608-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim MK, Jeong ES, Kim KN, Park SH, Kim JW. Nanoemulsification of pseudo-ceramide by molecular association with mannosylerythritol lipid. Colloids Surf B Biointerfaces 2013; 116:597-602. [PMID: 24290102 DOI: 10.1016/j.colsurfb.2013.10.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 09/13/2013] [Accepted: 10/16/2013] [Indexed: 12/14/2022]
Abstract
Ceramide molecules in water-based solutions readily attract each other to form molecular crystals, which seriously hampers to diversify their formulations. This paper describes a facile method that allows fabrication of stable ceramide emulsions through an effective molecular association with a lipid having an asymmetric molecular geometry. The lipid considered in this study is mannosylerythritol lipid (MEL). MEL is specialized in having a unique molecular structure containing sugar alcohol erythritol as a hydrophilic part and two alkyl chains with different number of carbons as hydrophobic moieties. Our particular interest has been focused on experimentally demonstrating how MEL interacts with pseudo-ceramide molecules by observing phase properties, emulsion morphology, and suspension stability. The pseudo-ceramide emulsions prepared with MEL show remarkably improved dispersion stability without either formation of molecular crystals or changes in particle sizes even after storing them for a long time. This suggests that MEL readily associates with the pseudo-ceramide due to the hydrophobic interaction, while it makes a break in the continuity of the molecular assembly of the pseudo-ceramide molecules themselves due to the geometric hindrance coming from MEL's asymmetric molecular structure.
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Affiliation(s)
- Min Kyung Kim
- Department of Applied Chemistry, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Eun Seon Jeong
- Department of Applied Chemistry, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Kwang Nyeon Kim
- Damy Chemical Co., Material Science Research Institute, 481-10, Gasan-dong, Geumcheon-gu, Seoul 153-803, Republic of Korea
| | - Seung Han Park
- Amore-Pacific Co. R&D Center, 314-1, Bora-dong, Giheung-gu, Yongin, Gyeonggi-do 446-729, Republic of Korea
| | - Jin Woong Kim
- Department of Applied Chemistry, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Republic of Korea.
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