| Autor: |
Sampaio, Igor Carvalho Fontes, Ferreira, Joalene de Azevedo Santos, Crugeira, Pedro Jorge Louro, da Silva Oliveira, Ian Mascena, dos Santos, Jacson Nunes, Matos, Josilene Borges Torres Lima, Pinheiro, Antonio Luiz Barbosa, de Almeida, Paulo Fernando |
| Zdroj: |
Waste & Biomass Valorization; Mar2024, Vol. 15 Issue 3, p1309-1322, 14p |
| Abstrakt: |
It was tested the production of a viscous exopolysaccharide (EPS) by Lelliottia amnigena using different concentrations (10, 15, 25, 50 and 100%) of produced water (PW) and Dialyzed PW (DPW) at 100% concentration, with a nutrient medium based on glycerin and sucrose as carbon sources in 44 h batches. There was an increase in EPS recovery when used PW up to a concentration of 25%. The viscosity of the EPS solutions was maintained with DPW and up to 15% of PW, such a condition resulted in 9.34 gL− 1 of EPS, representing an increase of 84.9% compared to the control (P < 0.0001). The PW 15% increased the viscosity per produced liter by 114.3% (P < 0.0001). Scanning electron microscopy and Energy-dispersive X-ray spectroscopy analysis showed that EPS adsorbed mineral constituents of the substrate and its characterization by Fourier Transform Infrared Spectroscopy was similar to an external control of a commercial EPS produced by an Enterobacter A47 strain. PW at 15% becomes an alternative to increase the EPS production process and can contribute to the mitigation of environmental damage through sustainable PW management in the oilfield chain. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink