Biosorption of copper(II) and cadmium(II) by a novel exopolysaccharide secreted from deep-sea mesophilic bacterium

Zhou, Weizhi; Wang, Jing; Shen, Boling; Hou, Wanguo; Zhang, Yuzhong

doi:10.1016/j.colsurfb.2009.04.018

Cited by 64 publications

(26 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the monosaccharide unites it can be seen that the functional groups on a SM-A87 EPS molecule include hydroxyl, hemiacetal, aldehyde/ketone and carboxyl (Table 1) which were also verified by the FT-IR spectrum (Zhou et al, 2009). The existence of 3, 4-linked glucopyranosyl residue indicates that the SM-A87 EPS molecules are hyper-branched.…”

Section: Glycosyl Composition and Linkage Analysismentioning

confidence: 63%

“…(Zhou et al, 2009). Fresh sample was stored in the refrigerator at 4 • C. The weight-average molecular weight was measured to be 3.76 × 10 6 g/mol with Gel Permeation Chromatographer (HP1100, Agilent) under the following conditions: column, 300 mm × 7.8 mm I.D.…”

Section: Methodsmentioning

confidence: 99%

“…In order to survive in the deep-sea nutrient-scarce environment, SM-A87 secretes large quantities of highly viscous exopolysaccharides (EPS) to concentrate proteinaceous particles and metal ions as a growth and energy source. The low-nutrient consuming and high yielding properties of the bacterium indicate that SM-A87 EPS might be a low-cost producer (Zhou, Wang, Shen, Hou, & Zhang, 2009). The SM-A87 EPS may be chemically considered as an anionic polyelectrolyte, expected to be used as food additives, sorbents (Zhou et al, 2009), emulsifier, stabilizer, thickener, enhanced oil recovery system and so on.…”

Section: Introductionmentioning

confidence: 99%

“…The low-nutrient consuming and high yielding properties of the bacterium indicate that SM-A87 EPS might be a low-cost producer (Zhou, Wang, Shen, Hou, & Zhang, 2009). The SM-A87 EPS may be chemically considered as an anionic polyelectrolyte, expected to be used as food additives, sorbents (Zhou et al, 2009), emulsifier, stabilizer, thickener, enhanced oil recovery system and so on. Understanding the rheological behavior of SM-A87 EPS solution is of applied and fundamental importance.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Rheological properties of aqueous solution of new exopolysaccharide secreted by a deep-sea mesophilic bacterium

Hou

Zhang

2011

Carbohydrate Polymers

View full text Add to dashboard Cite

Section: Glycosyl Composition and Linkage Analysismentioning

confidence: 63%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rheological properties of aqueous solution of new exopolysaccharide secreted by a deep-sea mesophilic bacterium

Hou

Zhang

2011

Carbohydrate Polymers

View full text Add to dashboard Cite

“…2) [30]. This phenomenon was described in many studies of metal biosorption by EPS [10,27,[31][32][33][34][35].…”

Section: Effect Of Ph On Biosorptionmentioning

confidence: 79%

Study of biosorption of copper and silver by marine bacterial exopolysaccharides

Deschatre

Ghillebaert

Guézennec³

et al. 2015

WIT Transactions on Ecology and the Environment

View full text Add to dashboard Cite

Metal bioremediation was studied by biosorption of analytical grade copper Cu(II) and silver Ag(I) by an exopolysaccharide (EPS) produced by marine bacteria from French Polynesia. Colorimetric analysis showed that EPS was composed of neutral sugars, uronic acids, acetate and especially high sulfate amount (29%). Metal biosorption experiments were conducted in batch process. Results showed that the maximum sorption capacities calculated according to Langmuir model were 400 mg g−1 EPS (6.29 mmol g−1) and 256 mg g ) for Cu(II) and Ag(I), respectively. The influence of pH, biosorbent concentration, ionic strength on EPS biosorption capacities was investigated.Results showed that bacterial EPS can be considered as very promising for copper and silver bioremediation. Further development in dynamic and continuous process at the industrial scale will be organized next.

show abstract

Sustainable Water Remediation

Gupta

Mishra

2016

Encyclopedia of Inorganic and Bioinorganic Chemistry

View full text Add to dashboard Cite

Contamination of water bodies such as rivers, lakes, aquifers, oceans, and groundwater has led to a serious problem of water pollution. The various reasons for this threat constitute both anthropogenic and non‐anthropogenic factors including population explosion, industrialization, and globalization, which lead to the addition of toxic metals, dyes, and organic and inorganic compounds in water. Consumption of these toxic metals for longer time may cause various disorders in the human body including decreased immunological defenses, disabilities associated with malnutrition, and high rate of upper gastrointestinal cancer. Remediation of water includes the elimination of contaminants for a pollution‐free environment. Attention has also been focused on developing green sustainable technologies that must be esthetic, eco‐friendly, socially acceptable, and economical. Water remediation using green technologies has been divided into two groups; bioremediation, that is decontamination using plants, fungi, algae, bacteria, and other microorganisms and second remediation method is through natural products or modified natural products. Bioremediation is the use of plants and microorganisms for the breakdown of contaminants to nontoxic or less harmful products. It is used to purify groundwater, soil, sludge‐carrying pesticides, hydrocarbons, and other organic chemicals for detoxification. Bioremediation consists of phytoremediation through which detoxification is carried out through green plants and their biomass. It helps in the removal of toxic metals by complexation. Periphyton biofilms composed of bacilli and cocci for the treatment of aquatic ecosystem remove COD, UV254 nm matter, and toxic metals; algal biomass is used for the removal of harmful dyes from wastewater. Natural products also emerge as potential compounds to remediate toxic metals from industrial effluents. Some of the natural products used for this purpose are polysaccharides, crab shell, papaya wood, etc.; modified natural products such as zeolites having selectivity for ammonia, transition metals, bacteria, and radioactive elements; functionalized silica gel for removing metals; nanomaterials as potential antimicrobial agents and to remove metals and organic contaminants; ionic liquids as excellent solvent for the extraction of various heavy metals; surfactant modification for removal of oxo ions such as chromate, oxalate, etc.; and inorganic–organic hybrid polymeric materials for water purification. The use of such materials will lead to a better and more sustainable way of treating polluted water.

show abstract

Biosorption of copper(II) and cadmium(II) by a novel exopolysaccharide secreted from deep-sea mesophilic bacterium

Cited by 64 publications

References 36 publications

Rheological properties of aqueous solution of new exopolysaccharide secreted by a deep-sea mesophilic bacterium

Rheological properties of aqueous solution of new exopolysaccharide secreted by a deep-sea mesophilic bacterium

Study of biosorption of copper and silver by marine bacterial exopolysaccharides

Sustainable Water Remediation

Contact Info

Product

Resources

About