Article
Engineering, Environmental
Siti Shilatul Najwa Sharuddin, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hasan, Ahmad Razi Othman, Nur 'Izzati Ismail
Summary: This study isolated multifunctional rhizobacteria from different sources, such as rhizosphere soils and crude oil sludge, and found that these bacteria can efficiently degrade hydrocarbons while producing biosurfactants. The presence of biosurfactants was confirmed by SEM images, showing the formation of exopolymers that enhance the degradation process.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Biotechnology & Applied Microbiology
M. E. T. Silva, S. Duvoisin, R. L. Oliveira, E. F. Banhos, A. Q. L. Souza, P. M. Albuquerque
Summary: This study evaluated the production of biosurfactants by fungi isolated from the Amazonian species Piper hispidum and identified promising candidates with potential industrial applications. The endophytic fungi of P. hispidum can serve as a new source of biosurfactants due to their interesting physico-chemical characteristics.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Engineering, Chemical
Darne Germano Almeida, Rita de Cassia Freire Soares da Silva, Hugo Morais Meira, Pedro Pinto Ferreira Brasileiro, Elias Jose Silva, Juliana Moura Luna, Raquel Diniz Rufino, Leonie Asfora Sarubbo
Summary: The biosurfactant produced from Candida tropicalis UCP0996 in a low cost-medium was found to effectively remove and degrade oil contaminants, showing great potential for commercial application in oil spill bioremediation.
Article
Agricultural Engineering
Subhadeep Mondal, Subham Rakshit, Kalyanbrata Pal, Sourav Santra, Debabrata Goswami, Saswati Parua Mondal, Suman Kumar Halder, Keshab Chandra Mondal
Summary: The aim of this study was to isolate a highly beneficial probiotic bacterium capable of producing glutathione. The isolated strain, Bacillus amyloliquefaciens KMH10, exhibited antioxidative activity (77.7 ± 2.56) and several other essential probiotic attributes. A consortium of lignocellulolytic enzymes was used to saccharify banana peel, resulting in the production of 65.71 g/L sugar to support optimal glutathione production of 181 ± 4.56 mg/L, which was 1.6 times higher than the control. Therefore, this probiotic bacteria could serve as an effective resource for glutathione and be used as natural therapeutics for the prevention/treatment of inflammation-related gastric ailments, as well as an effective producer of glutathione using valorized banana waste that has excellent industrial relevance.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Isabela Maria Monteiro Vieira, Brenda Lohanny Passos Santos, Lucas Santos Silva, Larissa Castor Ramos, Roberto Rodrigues de Souza, Denise Santos Ruzene, Daniel Pereira Silva
Summary: Pineapple peel, rich in nutrients, can be used for biosurfactant production, reducing costs and positively impacting the environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Naiara Elisa Kreling, Viviane Simon, Victoria Dutra Fagundes, Antonio Thome, Luciane Maria Colla
Summary: This study aimed to produce biosurfactants and lipases simultaneously in solid state fermentation using Aspergillus niger, and then utilized the fermented media for bioremediation of oily contaminated soil. The results showed that the solid fermented culture medium containing both biocompounds was feasible for the treatment of contaminants, demonstrating great potential for environmental applications without purification processes.
ENVIRONMENTAL MANAGEMENT
(2021)
Article
Energy & Fuels
Debapriya Sarkar, Sushant Prajapati, Kasturi Poddar, Angana Sarkar
Summary: This study evaluates the potential of banana peel as a substrate for ethanol production and investigates a single-step ethanol production process without any pretreatment. It is found that banana peel has the potential for ethanol production and high temperature and pH support higher ethanol production.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Rebecca Hollenbach, Sophie Oeppling, Andre Delavault, Annika R. Voelp, Norbert Willenbacher, Jens Rudat, Katrin Ochsenreither, Christoph Syldatk
Summary: Studies comparing glycolipids and conventional surfactants revealed that different types of glycolipids possess varying foam stabilizing properties, requiring suitable structural selection based on specific applications. Additionally, the influence of different foaming gases on the foaming properties of glycolipids was evaluated, showing that the choice of gas can impact the foam stability.
Article
Environmental Sciences
Lo Tsui, Aaneta Paul, Yi-Ting Chen, E. Tz-Chi
Summary: This study tested the use of a solution called effective microorganisms (EM) to remove cadmium from soil. The experimental results showed that EM had a cadmium removal efficiency of 90.5% after 7 days of electrokinetic (EK) treatment. EM's biosurfactant property allowed them to penetrate deeply into the soil and dissolve a high quantity of pollutants.
ENVIRONMENTAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Ananya Satapathy, Kankana Saikia, Samuel Lalthazuala Rokhum
Summary: Greener methods for the production of nanoparticles have been explored in this study, with a focus on synthesizing CaO nanoparticles using banana leaf extracts. The CaO nanoparticles were successfully obtained through calcination of calcium hydroxide obtained from the precursor calcium nitrate. The synthesized CaO nanoparticles showed high catalytic activity in the transesterification of soybean oil, achieving a conversion rate of 98.0% under the optimal reaction conditions.
Article
Biophysics
Jyoti Sharma, Atya Kapley, Durai Sundar, Preeti Srivastava
Summary: In this study, a biosurfactant-producing bacterium Franconibacter sp. IITDAS19 was isolated from crude oil contaminated soil and characterized. The biosurfactant was identified as a glycolipid and showed high efficacy towards different types of hydrocarbons. It can be used for enhanced oil recovery.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Katiany do Vale Vale, Darlane Wellen Freitas Soares, Ana Luiza Beserra da Silva, Flavia Oliveira Monteiro da Silva Abreu, Joao Lucas Isidio de Oliveira Almeida, Maria Roniele Felix Oliveira, Liange Reck, Vania Maria Maciel Melo, Daniela Ribeiro Alves, Carlucio Roberto Alves
Summary: In this study, bacterial strains from the Bacillus genus were isolated from residual effluents of a Petroleum Factory for bioremediation of oil-contaminated soils. The strain LUB P1 produced a lipopeptide biosurfactant with excellent properties, reducing the surface tension to rates below 30 mN/m. The biosurfactant was identified as surfactin with a CMC value of 15 mg.L-1, high stability, and low toxicity, making it suitable for bioremediation applications.
RESULTS IN CHEMISTRY
(2023)
Article
Engineering, Chemical
Tiago P. Silva, Susana M. Paixao, Joao Tavares, Catia Gil, Cristiana A. Torres, Filomena Freitas, Luis Alves
Summary: This study evaluated the potential of Gordonia alkanivorans strain 1B as a producer of biosurfactants and bioemulsifiers (BS/BE), and performed initial characterization of the compounds produced. The results demonstrated that strain 1B was capable of synthesizing BS/BE compounds in various hydrophobic phases, without the need for a hydrophobic inducer. The produced compounds exhibited excellent surfactant and emulsifying properties, outperforming many commercial alternatives.
Review
Biochemistry & Molecular Biology
Rodolfo Esposito, Immacolata Speciale, Cristina De Castro, Gerardino D'Errico, Irene Russo Krauss
Summary: To protect human and environmental health, researchers are focusing on discovering and developing new molecules with high biocompatibility and biodegradability. Surfactants are particularly urgent in this matter, and biosurfactants derived from microorganisms are a promising alternative. Rhamnolipids, a well-known family of biosurfactants, have been extensively studied for their production and physicochemical characterization, although a clear structure-function relationship is still lacking. This review aims to provide a comprehensive discussion of the physicochemical properties of rhamnolipids under different solution conditions and their structure, while also addressing unresolved issues for their potential replacement of conventional surfactants.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Energy & Fuels
Zahra Mansoorsamaei, Darush Mowla, Feridun Esmaeilzadeh, Kheibar Dashtian
Summary: This study focuses on biodiesel production from waste cooking oil through transesterification using a novel heterogeneous catalyst derived from waste banana peels. The catalyst, composed of biochar-Fe2O3/Fe2K6O5, was prepared by carbonating banana peel residue with Fe(III) and potassium hydroxide activator. Extensive analysis of the catalyst's properties and the influence of crucial parameters on biodiesel yield were conducted. Optimal conditions were determined, resulting in a biodiesel yield of 88.83% with promising properties. The findings highlight the importance and practical benefits of utilizing the banana peel catalyst for sustainable biodiesel production.