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Hari A, Doddapaneni TRKC, Kikas T. Common operational issues and possible solutions for sustainable biosurfactant production from lignocellulosic feedstock. ENVIRONMENTAL RESEARCH 2024; 251:118665. [PMID: 38493851 DOI: 10.1016/j.envres.2024.118665] [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: 10/13/2023] [Revised: 02/06/2024] [Accepted: 03/07/2024] [Indexed: 03/19/2024]
Abstract
Surfactants are compounds with high surface activity and emulsifying property. These compounds find application in food, medical, pharmaceutical, and petroleum industries, as well as in agriculture, bioremediation, cleaning, cosmetics, and personal care product formulations. Due to their widespread use and environmental persistence, ensuring biodegradability and sustainability is necessary so as not to harm the environment. Biosurfactants, i.e., surfactants of plant or microbial origin produced from lignocellulosic feedstock, perform better than their petrochemically derived counterparts on the scale of net-carbon-negativity. Although many biosurfactants are commercially available, their high cost of production justifies their application only in expensive pharmaceuticals and cosmetics. Besides, the annual number of new biosurfactant compounds reported is less, compared to that of chemical surfactants. Multiple operational issues persist in the biosurfactant value chain. In this review, we have categorized some of these issues based on their relative position in the value chain - hurdles occurring during planning, upstream processes, production stage, and downstream processes - alongside plausible solutions. Moreover, we have presented the available paths forward for this industry in terms of process development and integrated pretreatment, combining conventional tried-and-tested strategies, such as reactor designing and statistical optimization with cutting-edge technologies including metabolic modeling and artificial intelligence. The development of techno-economically feasible biosurfactant production processes would be instrumental in the complete substitution of petrochemical surfactants, rather than mere supplementation.
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Affiliation(s)
- Anjana Hari
- Chair of Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi 56, Tartu, 51014, Estonia.
| | - Tharaka Rama Krishna C Doddapaneni
- Chair of Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi 56, Tartu, 51014, Estonia
| | - Timo Kikas
- Chair of Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi 56, Tartu, 51014, Estonia
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Uyar E, Avcı T. Screening and molecular identification of biosurfactant/bioemulsifier producing bacteria from crude oil contaminated soils samples. Biologia (Bratisl) 2023. [DOI: 10.1007/s11756-023-01330-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Interactive analysis of biosurfactants in fruit-waste fermentation samples using BioSurfDB and MEGAN. Sci Rep 2022; 12:7769. [PMID: 35546170 PMCID: PMC9095615 DOI: 10.1038/s41598-022-11753-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/13/2022] [Indexed: 11/08/2022] Open
Abstract
Agroindustrial waste, such as fruit residues, are a renewable, abundant, low-cost, commonly-used carbon source. Biosurfactants are molecules of increasing interest due to their multifunctional properties, biodegradable nature and low toxicity, in comparison to synthetic surfactants. A better understanding of the associated microbial communities will aid prospecting for biosurfactant-producing microorganisms. In this study, six samples of fruit waste, from oranges, mangoes and mixed fruits, were subjected to autochthonous fermentation, so as to promote the growth of their associated microbiota, followed by short-read metagenomic sequencing. Using the DIAMOND+MEGAN analysis pipeline, taxonomic analysis shows that all six samples are dominated by Proteobacteria, in particular, a common core consisting of the genera Klebsiella, Enterobacter, Stenotrophomonas, Acinetobacter and Escherichia. Functional analysis indicates high similarity among samples and a significant number of reads map to genes that are involved in the biosynthesis of lipopeptide-class biosurfactants. Gene-centric analysis reveals Klebsiella as the main assignment for genes related to putisolvins biosynthesis. To simplify the interactive visualization and exploration of the surfactant-related genes in such samples, we have integrated the BiosurfDB classification into MEGAN and make this available. These results indicate that microbiota obtained from autochthonous fermentation have the genetic potential for biosynthesis of biosurfactants, suggesting that fruit wastes may provide a source of biosurfactant-producing microorganisms, with applications in the agricultural, chemical, food and pharmaceutical industries.
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Ramoneda J, Hawes I, Pascual-García A, J Mackey T, Y Sumner D, D Jungblut A. Importance of environmental factors over habitat connectivity in shaping bacterial communities in microbial mats and bacterioplankton in an Antarctic freshwater system. FEMS Microbiol Ecol 2021; 97:6174672. [PMID: 33729491 DOI: 10.1093/femsec/fiab044] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/14/2021] [Indexed: 11/14/2022] Open
Abstract
Freshwater ecosystems are considered hotspots of biodiversity in Antarctic polar deserts. Anticipated warming is expected to change the hydrology of these systems due to increased meltwater and reduction of ice cover, with implications for environmental conditions and physical connectivity between habitats. Using 16S rRNA gene sequencing, we evaluated microbial mat and planktonic communities within a connected freshwater system in the McMurdo Wright Valley, Antarctica, to determine the roles of connectivity and habitat conditions in controlling microbial assemblage composition. We examined communities from glacial Lake Brownworth, the perennially ice-covered Lake Vanda and the Onyx River, which connects the two. In Lake Vanda, we found distinct microbial assemblages occupying sub-habitats at different lake depths, while the communities from Lake Brownworth and Onyx River were structurally similar. Despite the higher physical connectivity and dispersal opportunities between bacterial communities in the shallow parts of the system, environmental abiotic conditions dominated over dispersal in driving community structure. Functional metabolic pathway predictions suggested differences in the functional gene potential between the microbial mat communities located in shallower and deeper water depths. The findings suggest that increasing temperatures and meltwater due to future climate change will affect bacterial diversity and functioning in Antarctic freshwater ecosystems.
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Affiliation(s)
- Josep Ramoneda
- Life Sciences Department, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | - Ian Hawes
- Coastal Marine Field Station, University of Waikato, 58 Cross Road, Tauranga 3110, New Zealand
| | - Alberto Pascual-García
- Theoretical Biology, Institute of Integrative Biology, ETH Zürich, Universitätstrasse 16, Zürich 8006, Switzerland
| | - Tyler J Mackey
- Department of Earth and Planetary Sciences, University of California, Davis, One Shields Avenue, Davis, CA 95618, USA
| | - Dawn Y Sumner
- Department of Earth and Planetary Sciences, University of California, Davis, One Shields Avenue, Davis, CA 95618, USA
| | - Anne D Jungblut
- Life Sciences Department, Natural History Museum, Cromwell Road, London SW7 5BD, UK
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Napp AP, Pereira JES, Oliveira JS, Silva-Portela RCB, Agnez-Lima LF, Peralba MCR, Bento FM, Passaglia LMP, Thompson CE, Vainstein MH. Comparative metagenomics reveals different hydrocarbon degradative abilities from enriched oil-drilling waste. CHEMOSPHERE 2018; 209:7-16. [PMID: 29908430 DOI: 10.1016/j.chemosphere.2018.06.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 05/24/2018] [Accepted: 06/10/2018] [Indexed: 06/08/2023]
Abstract
The oil drilling process generates large volumes of waste with inadequate treatments. Here, oil drilling waste (ODW) microbial communities demonstrate different hydrocarbon degradative abilities when exposed to distinct nutrient enrichments as revealed by comparative metagenomics. The ODW was enriched in Luria Broth (LBE) and Potato Dextrose (PDE) media to examine the structure and functional variations of microbial consortia. Two metagenomes were sequenced on Ion Torrent platform and analyzed using MG-RAST. The STAMP software was used to analyze statistically significant differences amongst different attributes of metagenomes. The microbial diversity presented in the different enrichments was distinct and heterogeneous. The metabolic pathways and enzymes were mainly related to the aerobic hydrocarbons degradation. Moreover, our results showed efficient biodegradation after 15 days of treatment for aliphatic hydrocarbons (C8-C33) and polycyclic aromatic hydrocarbons (PAHs), with a total of about 50.5% and 46.4% for LBE and 44.6% and 37.9% for PDE, respectively. The results obtained suggest the idea that the enzymatic apparatus have the potential to degrade petroleum compounds.
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Affiliation(s)
- Amanda P Napp
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-070, Brazil.
| | - José Evandro S Pereira
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-070, Brazil.
| | - Jorge S Oliveira
- INESC-ID/IST-Instituto de Engenharia de Sistemas e Computadores/Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1000-029, Portugal; Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN 59072-970, Brazil.
| | - Rita C B Silva-Portela
- Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN 59072-970, Brazil.
| | - Lucymara F Agnez-Lima
- Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN 59072-970, Brazil.
| | - Maria C R Peralba
- Departamento de Química Inorgânica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91500-970, Brazil.
| | - Fátima M Bento
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90050-170, Brazil.
| | - Luciane M P Passaglia
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91500-970, Brazil.
| | - Claudia E Thompson
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-070, Brazil; Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS 90050-170, Brazil.
| | - Marilene H Vainstein
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-070, Brazil.
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Guerra AB, Oliveira JS, Silva-Portela RCB, Araújo W, Carlos AC, Vasconcelos ATR, Freitas AT, Domingos YS, de Farias MF, Fernandes GJT, Agnez-Lima LF. Metagenome enrichment approach used for selection of oil-degrading bacteria consortia for drill cutting residue bioremediation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:869-880. [PMID: 29353803 DOI: 10.1016/j.envpol.2018.01.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/28/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
Drill cuttings leave behind thousands of tons of residues without adequate treatment, generating a large environmental liability. Therefore knowledge about the microbial community of drilling residue may be useful for developing bioremediation strategies. In this work, samples of drilling residue were enriched in different culture media in the presence of petroleum, aiming to select potentially oil-degrading bacteria and biosurfactant producers. Total DNA was extracted directly from the drill cutting samples and from two enriched consortia and sequenced using the Ion Torrent platform. Taxonomic analysis revealed the predominance of Proteobacteria in the metagenome from the drill cuttings, while Firmicutes was enriched in consortia samples. Functional analysis using the Biosurfactants and Biodegradation Database (BioSurfDB) revealed a similar pattern among the three samples regarding hydrocarbon degradation and biosurfactants production pathways. However, some statistical differences were observed between samples. Namely, the pathways related to the degradation of fatty acids, chloroalkanes, and chloroalkanes were enriched in consortia samples. The degradation colorimetric assay using dichlorophenolindophenol as an indicator was positive for several hydrocarbon substrates. The consortia were also able to produce biosurfactants, with biosynthesis of iturin, lichnysin, and surfactin among the more abundant pathways. A microcosms assay followed by gas chromatography analysis showed the efficacy of the consortia in degrading alkanes, as we observed a reduction of around 66% and 30% for each consortium in total alkanes. These data suggest the potential use of these consortia in the bioremediation of drilling residue based on autochthonous bioaugmentation.
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Affiliation(s)
- Alaine B Guerra
- Department of Cellular Biology and Genetics, UFRN, Natal, Rio Grande do Norte, 59078900, Brazil
| | - Jorge S Oliveira
- Department of Cellular Biology and Genetics, UFRN, Natal, Rio Grande do Norte, 59078900, Brazil; Instituto de Engenharia de Sistemas e Computadores/Instituto Superior Técnico (INESC-ID/IST), Universidade de Lisboa, Portugal
| | - Rita C B Silva-Portela
- Department of Cellular Biology and Genetics, UFRN, Natal, Rio Grande do Norte, 59078900, Brazil
| | - Wydemberg Araújo
- Department of Cellular Biology and Genetics, UFRN, Natal, Rio Grande do Norte, 59078900, Brazil
| | - Aline C Carlos
- Department of Cellular Biology and Genetics, UFRN, Natal, Rio Grande do Norte, 59078900, Brazil
| | - Ana Tereza R Vasconcelos
- Instituto de Engenharia de Sistemas e Computadores/Instituto Superior Técnico (INESC-ID/IST), Universidade de Lisboa, Portugal
| | | | | | | | - Glauber José Turolla Fernandes
- Centro de Tecnologias do Gás e Energias Renováveis - CTGAS-ER, Natal, RN, Brazil; Universidade Potiguar, Av. Engenheiro Roberto Freire 2184, Natal, RN, 59082902, Brazil
| | - Lucymara F Agnez-Lima
- Department of Cellular Biology and Genetics, UFRN, Natal, Rio Grande do Norte, 59078900, Brazil.
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