Characterization of novel Acidobacteria exopolysaccharides with potential industrial and ecological applications
| Autor: | Maria de Lourdes Corradi da Silva, Johannes A. van Veen, Eliana Gertrudes de Macedo Lemos, Ohana Y. A. Costa, João Carlos Campanharo, Eiko E. Kuramae, Tereza Cristina Luque Castellane, Luiz Alberto Colnago, Anna M. Kielak |
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| Přispěvatelé: | Netherlands Institute of Ecology (NIOO-KNAW), Universidade Estadual Paulista (Unesp), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), LUIZ ALBERTO COLNAGO, CNPDIA., Microbial Ecology (ME) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Liquid paraffin 030106 microbiology Xylose Biology Polysaccharide Article 03 medical and health sciences chemistry.chemical_compound Biopolymers Extracellular polymeric substance Soil Microbiology chemistry.chemical_classification Multidisciplinary Ecology Monosaccharides Polysaccharides Bacterial Biodegradation biology.organism_classification Exopolysaccarides Acidobacteria 030104 developmental biology chemistry Emulsifying Agents international Emulsions Sunflower seed Rheology Soil microbiology ecosystems |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA Scientific Reports Scientific Reports, 7:41193. Nature Publishing Group |
| ISSN: | 2045-2322 |
| Popis: | Made available in DSpace on 2018-12-11T16:45:43Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-24 Acidobacteria have been described as one of the most abundant and ubiquitous bacterial phyla in soil. However, factors contributing to this ecological success are not well elucidated mainly due to difficulties in bacterial isolation. Acidobacteria may be able to survive for long periods in soil due to protection provided by secreted extracellular polymeric substances that include exopolysaccharides (EPSs). Here we present the first study to characterize EPSs derived from two strains of Acidobacteria from subdivision 1 belonging to Granulicella sp. EPS are unique heteropolysaccharides containing mannose, glucose, galactose and xylose as major components, and are modified with carboxyl and methoxyl functional groups that we characterized by Fourier transform infrared (FTIR) spectroscopy. Both EPS compounds we identified can efficiently emulsify various oils (sunflower seed, diesel, and liquid paraffin) and hydrocarbons (toluene and hexane). Moreover, the emulsions are more thermostable over time than those of commercialized xanthan. Acidobacterial EPS can now be explored as a source of biopolymers that may be attractive and valuable for industrial applications due to their natural origin, sustainability, biodegradability and low toxicity. Netherlands Institute of Ecology (NIOO-KNAW) Department of Microbial Ecology, P.O. Box 50 São Paulo State University (Unesp) School of Agricultural and Veterinarian Sciences, Rod. Prof. Paulo Donato Castellane km 5 Embrapa Instrumentação, Rua XV de Novembro, 1452 Faculdade de Ci'ncias e Tecnologia (Unesp) Departmento de Química e Bioquímica, Rua Roberto Símonsen, 305 São Paulo State University (Unesp) School of Agricultural and Veterinarian Sciences, Rod. Prof. Paulo Donato Castellane km 5 Faculdade de Ci'ncias e Tecnologia (Unesp) Departmento de Química e Bioquímica, Rua Roberto Símonsen, 305 |
| Databáze: | OpenAIRE |
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