Biosorption behavior and mechanism of sulfonamide antibiotics in aqueous solution on extracellular polymeric substances extracted from Klebsiella sp. J1

Pi, Shanshan; Li, Ang; Cui, Di; Zhou, Su; Feng, Liang; Ma, Fang; Yang, Jixian

doi:10.1016/j.biortech.2018.10.054

Cited by 64 publications

(17 citation statements)

References 35 publications

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“…In this case, the hydrophobic interaction between EPS and sulfonamides seemed to dominate the adsorption process. There was the maximum proportion of sulfonamides at molecular states when the solution pH was 4.0-5.0, and the molecular states of sulfonamides were favorable for hydrophobic groups to effectively play a role during adsorption process [130].…”

Section: Antibioticsmentioning

confidence: 99%

Biosorption: A Review of the Latest Advances

Torres

2020

Processes

148

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Biosorption is a variant of sorption techniques in which the sorbent is a material of biological origin. This technique is considered to be low cost and environmentally friendly, and it can be used to remove pollutants from aqueous solutions. The objective of this review is to report on the most significant recent works and most recent advances that have occurred in the last couple of years (2019–2020) in the field of biosorption. Biosorption of metals and organic compounds (dyes, antibiotics and other emerging contaminants) is considered in this review. In addition, the use and possibilities of different forms of biomass (live or dead, modified or immobilized) are also considered.

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Section: Antibioticsmentioning

confidence: 99%

Biosorption: A Review of the Latest Advances

Torres

2020

Processes

148

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“…Several studies have indicated that changes in cultivation time, pH, and temperature might affect the yield and composition of different EPS fractions produced by bacteria. − In the current study, the yield of different EPS fractions produced by FM-1 presented a trend of initially increasing and then decreasing during the process. The yield of different EPS fractions reached a maximum at 24 h, indicating that the stable phase of bacterial growth was conducive to the secretion of EPS; if the cultivation time was too long, the competition among bacteria for survival would increase after entering the endogenous respiration period, which would result in a decrease in the yield of EPS .…”

Section: Discussionmentioning

confidence: 48%

Variation in Extracellular Polymeric Substances from Enterobacter sp. and Their Pb²⁺ Adsorption Behaviors

Xin

Xie

et al. 2021

ACS Omega

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The objective of this study was to investigate the effects of the cultivation time, temperature, and pH value on the yield and composition of extracellular polymeric substances (EPS) from Enterobacter sp. FM-1 (FM-1) and to analyze the Pb 2+ adsorption behavior of soluble EPS (S-EPS), loosely bound EPS (LB-EPS), and tightly bound EPS (TB-EPS). Maximum EPS production was obtained when the cultivation time, temperature, and pH value were 24 h, 30 °C, and 8.0, respectively. The main components of EPS were proteins, polysaccharides, and nucleic acids, but the different EPS types contained different proportions and specific components. The Pb 2+ adsorption capacity of LB-EPS was 2.23 and 1.50 times higher than that of S-EPS and TB-EPS, respectively. After Pb 2+ adsorption by LB-EPS, the pH value of the reaction system decreased to the lowest of 5.23, which indicated that LB-EPS contained more functional groups that could release H + , which will help to better adsorb Pb 2+ through ion exchange. The three-dimensional excitation–emission matrix fluorescence spectroscopy (3D-EEM) analysis showed that the fluorescence intensity of tryptophan-containing substances decreased by 85.5% after Pb 2+ adsorption by LB-EPS, which indicated the complexation of tryptophan-containing substances with Pb 2+ . Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) O spectra indicated that the C=O peak from protein amide I of tryptophan-containing substances in LB-EPS was mainly responsible for the complexation of Pb 2+ . After the adsorption of Pb 2+ , the proportion of the C=O peak in LB-EPS increased by 33.89%, indicating that the complexation of LB-EPS with Pb 2+ was mainly attributed to the O atom in the C=O terminus of protein amide I.

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“…3D-EEM spectrum exhibited that λ ex/ λ em = (270–280) nm/(325–335) nm and λ ex/ λ em = (225–235) nm/(325–335) nm could represent aromatic amino acid tryptophan and tyrosine of protein-like substances [ 43 ]. Figure 4 showed that their fluorescence intensity weakened after EPS absorbing Pb 2+ , Cd 2+ , and Ni 2+ , displaying different levels of quenching.…”

Section: Resultsmentioning

confidence: 99%

“…This finding might be explained by the polysaccharides as the main constituent in EPS played the key role during the adsorption process. 3D-EEM spectrum exhibited that λex/λem = ð270 -280 Þ nm/ð325 -335Þ nm and λex/λem = ð225 -235Þ nm/ð325 -335Þ nm could represent aromatic amino acid tryptophan and tyrosine of protein-like substances [43]. Figure 4 showed that their fluorescence intensity weakened after EPS absorbing Pb 2+ , Cd 2+ , and Ni 2+ , displaying different levels of quenching.…”

Section: Kinetic Modelsmentioning

confidence: 99%

Biosorption Mechanism of Aqueous Pb²⁺, Cd²⁺, and Ni²⁺ Ions on Extracellular Polymeric Substances (EPS)

Cui

Tan

Deng

et al. 2020

Archaea

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Heavy metal pollution has been a focus with increasing attention, especially Pb2+, Cd2+, and Ni2+ in an aqueous environment. The adsorption capacity and mechanism of extracellular polymeric substances (EPS) from Agrobacterium tumefaciens F2 for three heavy metals were investigated in this study. The adsorption efficiency of 94.67%, 94.41%, and 77.95% were achieved for Pb2+, Cd2+, and Ni2+ adsorption on EPS, respectively. The experimental data of adsorption could be well fitted by Langmuir, Freundlich, Dubinin–Radushkevich isotherm models, and pseudo-second-order kinetic model. Model parameters analysis demonstrated the great adsorption efficiency of EPS, especially for Pb2+, and chemisorption was the rate-limiting step during the adsorption process. The functional groups of C=O of carboxyl and C-O-C from sugar derivatives in EPS played the major role in the adsorption process judged by FTIR. In addition, 3D-EEM spectra indicated that tyrosine also assisted EPS adsorption for three heavy metals. But EPS from strain F2 used the almost identical adsorption mechanism for three kinds of divalent ions of heavy metals, so the adsorption efficiency difference of Pb2+, Cd2+, and Ni2+ on EPS could be correlated to the inherent characteristics of each heavy metal. This study gave the evidence that EPS has a great application potential as a bioadsorbent in the treatment of heavy metals pollution.

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Biosorption behavior and mechanism of sulfonamide antibiotics in aqueous solution on extracellular polymeric substances extracted from Klebsiella sp. J1

Cited by 64 publications

References 35 publications

Biosorption: A Review of the Latest Advances

Biosorption: A Review of the Latest Advances

Variation in Extracellular Polymeric Substances from Enterobacter sp. and Their Pb²⁺ Adsorption Behaviors

Biosorption Mechanism of Aqueous Pb²⁺, Cd²⁺, and Ni²⁺ Ions on Extracellular Polymeric Substances (EPS)

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Biosorption behavior and mechanism of sulfonamide antibiotics in aqueous solution on extracellular polymeric substances extracted from Klebsiella sp. J1

Cited by 64 publications

References 35 publications

Biosorption: A Review of the Latest Advances

Biosorption: A Review of the Latest Advances

Variation in Extracellular Polymeric Substances from Enterobacter sp. and Their Pb2+ Adsorption Behaviors

Biosorption Mechanism of Aqueous Pb2+, Cd2+, and Ni2+ Ions on Extracellular Polymeric Substances (EPS)

Contact Info

Product

Resources

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Variation in Extracellular Polymeric Substances from Enterobacter sp. and Their Pb²⁺ Adsorption Behaviors

Biosorption Mechanism of Aqueous Pb²⁺, Cd²⁺, and Ni²⁺ Ions on Extracellular Polymeric Substances (EPS)