Influence of saponins on the biodegradation of halogenated phenols

Kaczorek, Ewa; Smułek, Wojciech; Zdarta, Agata; Sawczuk, Agata; Zgoła‐Grześkowiak, Agnieszka

doi:10.1016/j.ecoenv.2016.05.015

Cited by 50 publications

(23 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the generally accepted interpretation, the surface active agents have an impact on membrane permeability because they are adsorbed on the surface of bacteria cells . The increase in cell membrane permeability has been demonstrated in the presence of surfactants such as Triton X‐100, rhamnolipids, Tween 20, Tween 40, Tween 80 and saponins from Quillaja saponaria . In the present work, the presence of saponins from Sapindus mukorossi significantly changed the inner membrane permeability of samples collected from the cultures grown on 4‐chlorotoluene.…”

Section: Resultssupporting

confidence: 49%

The ability of Achromobacter sp. KW1 strain to biodegrade isomers of chlorotoluene

Pacholak

Smułek

Jesionowski

et al. 2017

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

Background The isomers of chlorotoluene (2‐chlorotoluene, 3‐chlorotoluene and 4‐chlorotoluene) are considered to be toxic and to have a negative impact on humans and the environment. Therefore, issues related to their removal from the natural environment have become of increasing interest. Results The morphology of cells and colonies after long‐term metabolic stress was significantly modified. Metabolic stress is suggested to be a determinant of bacteria cell surface properties. The chlorine atom position in chlorotoluenes has a strong impact on cell surface modification. When the chlorine atom was at the ortho or para position, a large increase in hydrophobicity (from 40% to 73% and from 29% to 49%, respectively) and a decrease in the inner membrane permeability (from 0.31 to 0.24 µmol L−1 min−1 and from 0.52 to 0.13 µmol L−1 min−1) were observed. Moreover, Achromobacter sp. KW1 strain was found to exhibit good ability to degrade chlorotoluenes. The greatest difference in biodegradation between the stressed and non‐stressed strains was observed for the cultures grown on 4‐chlorotoluene and 3‐chlorotoluene. Conclusions Both long‐term contact with hydrocarbons and the addition of surfactants demonstrated a beneficial effect on the biodegradation process. However, as a result of long‐term contact with hydrocarbons, the bacteria studied were able to degrade chlorotoluenes faster and more effectively. © 2017 Society of Chemical Industry

show abstract

Section: Resultssupporting

confidence: 49%

The ability of Achromobacter sp. KW1 strain to biodegrade isomers of chlorotoluene

Pacholak

Smułek

Jesionowski

et al. 2017

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, in the present study, Bacillus may have been the primary degraders of 2‐chlorophenol. Pseudomonas , with low relative abundance (0.1%–1.3%), are also capable of using phenol and chlorophenols as carbon and energy sources (Durruty, Okada, González, & Murialdo, ; Kaczorek, Smułek, Zdarta, Sawczuk, & Zgoła‐Grześkowiak, ; Liu et al., ; Wang et al., ). On the whole, the abundance of known chlorophenol‐degrading bacteria was not high, nor did it increase with the concentration of 2‐chlorophenol.…”

Section: Resultsmentioning

confidence: 99%

Retracted: Acclimation of 2‐chlorophenol‐biodegrading activated sludge and microbial community analysis

Sun

Zhang

Yang

et al. 2019

Water Environment Research

View full text Add to dashboard Cite

Using glucose as cosubstrate, activated sludge that could effectively biodegrade 40 mg/L 2‐chlorophenol was successfully domesticated in sequencing batch reactors. To acclimate the sludge, 2‐chlorophenol was increased stepwise from 0 to 40 mg/L. High‐throughput sequencing revealed that the microbial community richness increased during the first 5 days of acclimation to 5 mg/L 2‐chlorophenol and then decreased after another 20 days as 2‐chlorophenol was increased. The original sludge obtained from a water resource recovery facility had the highest microbial diversity. As the acclimation continued further, community richness and diversity both increased, but they decreased again, significantly, when 2‐chlorophenol reached 40 mg/L. Saccharibacteria_norank, Bacillus, Saprospiraceae_uncultured, and Lactococcus were the dominant bacteria. Bacillus and Pseudomonas were the main known chlorophenol‐degrading bacteria. WCHB1‐60_norank, Tetrasphaera, Comamonadaceae_unclassified, and Haliangium showed poor tolerance to 2‐chlorophenol. Higher bacterial tolerance to chlorophenols does not mean higher degrading capability. The degradation of chlorophenols was not positively correlated with the detected abundance of known 2‐chlorophenol‐degrading bacteria. Practitioner points Activated sludge that could effectively biodegrade 40 mg/L 2‐chlorophenol was successfully domesticated using glucose as cosubstrate in sequencing batch reactors. Saccharibacteria_norank, Bacillus, Saprospiraceae_uncultured, and Lactococcus were the dominant bacteria. Bacillus and Pseudomonas were the main known chlorophenol‐degrading bacteria detected in this study. The degrading capability and tolerance of bacteria to chlorophenols were relatively independent and the degradation of chlorophenols may be the synergistic effect of various bacteria.

show abstract

“…To the best of our knowledge, there is no report yet accelerating the dispersibility of Fe 3 O 4 to increase the degradation efficiency of environmental pollutants. Saponin is a plant-biosurfactant and is widely distributed in nature, most especially in the kingdom Plantae; 16 and because of the amount of OH groups and COOH groups in the structure of saponin, 17 In this study, S-Fe 3 O 4 was synthesized using an oxidative polymerization method and was used to activate H 2 O 2 for PNP removal in water, which showed that S-Fe 3 O 4 has great dispersibility. This has advantages such as the enhancement of active sites and the environmental protection of iron oxide.…”

Section: Introductionmentioning

confidence: 94%

“…To the best of our knowledge, there is no report yet accelerating the dispersibility of Fe 3 O 4 to increase the degradation efficiency of environmental pollutants. Saponin is a plant‐biosurfactant and is widely distributed in nature, most especially in the kingdom Plantae; and because of the amount of OH groups and COOH groups in the structure of saponin, we reasonably speculated that saponin‐modified Fe 3 O 4 nanoparticles (S‐Fe 3 O 4 ) may enhance the performance of activated H 2 O 2 by increasing the dispersibility of Fe 3 O 4 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of saponin‐modified Fe₃O₄ nanoparticles as heterogeneous Fenton‐catalyst with enhanced degradation of p‐nitrophenol

Ren

Han

et al. 2016

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND Magnetite (Fe3O4) is an efficient Fenton‐like heterogeneous catalyst for degradation of environmental pollutants. However, Fe3O4 is easy to aggregate and has bad dispersion stability because of its magnetism. This is the reason why the catalytic efficiency of Fe3O4 is not positive. In order to accelerate the dispersibility and improve the catalytic efficiency, the surface of Fe3O4 was modified with saponin, a natural plant‐biosurfactants. It is anticipated that saponin‐modified Fe3O4 nanoparticles (S‐Fe3O4) can expose more catalytic sites and has better dispersion stability to improve catalytic efficiency for activating H2O2. RESULTS The S‐Fe3O4 was prepared through oxidative polymerization. It has a pattern of regular hexagon with a diameter of 70–80 nm and it is superparamagnetic. The sedimentation experiment shows that S‐Fe3O4 was able to maintain notable dispersibility for 18 days. During a 90 min reaction, 100% of p‐nitrophenol (IUPAC name 4‐Nitrophenol, PNP) can be removed using 2.0 g L−1catalyst at initial pH 3.0 ± 0.3, initial PNP concentration 250 mg L−1, H2O2 20 mmol L−1, and temperature 30 °C. CONCLUSION Saponin‐modified Fe3O4 nanoparticles (S‐Fe3O4) accelerate the efficiency of degradation of PNP by enhancing the dispersibility of Fe3O4. It is anticipated that this provides a new catalyst for remediation of wastewater. © 2016 Society of Chemical Industry

show abstract

Influence of saponins on the biodegradation of halogenated phenols

Cited by 50 publications

References 54 publications

The ability of Achromobacter sp. KW1 strain to biodegrade isomers of chlorotoluene

The ability of Achromobacter sp. KW1 strain to biodegrade isomers of chlorotoluene

Retracted: Acclimation of 2‐chlorophenol‐biodegrading activated sludge and microbial community analysis

Synthesis and characterization of saponin‐modified Fe₃O₄ nanoparticles as heterogeneous Fenton‐catalyst with enhanced degradation of p‐nitrophenol

Contact Info

Product

Resources

About

Influence of saponins on the biodegradation of halogenated phenols

Cited by 50 publications

References 54 publications

The ability of Achromobacter sp. KW1 strain to biodegrade isomers of chlorotoluene

The ability of Achromobacter sp. KW1 strain to biodegrade isomers of chlorotoluene

Retracted: Acclimation of 2‐chlorophenol‐biodegrading activated sludge and microbial community analysis

Synthesis and characterization of saponin‐modified Fe3O4 nanoparticles as heterogeneous Fenton‐catalyst with enhanced degradation of p‐nitrophenol

Contact Info

Product

Resources

About

Synthesis and characterization of saponin‐modified Fe₃O₄ nanoparticles as heterogeneous Fenton‐catalyst with enhanced degradation of p‐nitrophenol