Levels and health risk assessment of pesticides and metals in Lycium barbarum L. from different sources in Ningxia, China.

The berries of Lycium barbarum L. (Goji) are widely used as a Chinese traditional herbal medicine and functional food because of their reported beneficial pharmacological effects. However, there are reports of Goji berries being contaminated by chemical residues that could pose a hazard to humans.

Potentially toxic element (PTE) levels in maize, soil, and irrigation water and health risks through maize consumption in northern Ningxia, China.

Background: Industrial and agricultural activities result in elevated levels of potentially toxic elements (PTEs) in the local environment. PTEs can enter the human body through the food chain and pose severe health risks to inhabitants. In this study, PTE levels in maize, soil, and irrigation water were detected, and health risks through maize consumption were evaluated.

Efficacy of heparinoid PSS in treating cardiovascular diseases and beyond-A review of 31 years clinical experiences in China.

Heparin is a life-saving drug with multiple molecular targets and mostly well known for its anticoagulant and antithrombotic pharmacological effects in treating cardiovascular diseases. All the heparin-like polysaccharides that mimic the biological activities of heparin are called heparinoids. However, heparin has no pharmacological effect if taken orally and has to be used by injection in hospital settings.

Genistein Enhances or Reduces Glycosaminoglycan Quantity in a Cell Type-Specific Manner.

Background/aims: Genistein is a natural isoflavone enriched in soybeans. It has beneficial effects for patients with mucopolysaccharidose type III through inhibiting glycosaminoglycan biosynthesis. However, other studies indicate that genistein does not always inhibit glycosaminoglycan biosynthesis.

Optimizing microwave-assisted hydrolysis conditions for monosaccharide composition analyses of different polysaccharides.

Releasing all monosaccharides during acid hydrolysis for composition analysis of polysaccharides has been a time consuming process. In current study, an efficient (10 μL sample + 10 μL acid), sensitive, and quick monosaccharide composition analysis of polysaccharides was accomplished by using microwave-assisted HCl hydrolysis (10 min) of the polysaccharides followed by high-performance anion-exchange chromatography (HPAEC) combined with pulsed amperometric detection (PAD) analysis. Compared to the conventional hydrolysis procedure, this method is an efficient approach for monosaccharide composition analysis of acidic, basic, and neutral polysaccharides and particularly suited to polysaccharides that are difficult to hydrolyse fully such as chitosan, heparin and chondroitin sulfates.

Lead adsorption, anticoagulation and in vivo toxicity studies on the new magnetic nanomaterial FeO@SiO@DMSA as a hemoperfusion adsorbent.

This project aimed to develop and characterize a new nanoadsorbent for hemoperfusion. FeO nanoparticles synthesized by a facile solvothermal method were coated with SO and further modified by DMSA. TEM, XRD, FTIR, XPS and SEM were performed before and after lead adsorption to reveal the general performance and adsorption mechanism.

Study of Pb²⁺, Cd²⁺ and Ni²⁺ adsorption onto activated carbons prepared from glycyrrhiza residue by KOH or H₃PO₄activation.

The activated carbons (ACs) were prepared from glycyrrhiza residue by KOH or H₃PO₄activation and were used for removing Pb²⁺, Cd²⁺ and Ni²⁺ from simulated wastewater. The changes of the physical structure and chemical properties of the glycyrrhiza residue before and after activation were characterized by using a variety of analytical instruments and methods. Kinetics and equilibrium isotherms were obtained and the effects of solution pH value and adsorbent dosage were studied in batch experiments.

Biosorption of heavy metals from aqueous solutions by chemically modified orange peel.

Equilibrium, thermodynamic and kinetic studies were carried out for the biosorption of Pb(2+), Cd(2+) and Ni(2+) ions from aqueous solution using the grafted copolymerization-modified orange peel (OPAA). Langmuir and Freundlich isotherm models were applied to describe the biosorption of the metal ions onto OPAA. The influences of pH and contact time of solution on the biosorption were studied.

Isotherms, kinetics and thermodynamic studies of adsorption of Cu2+ from aqueous solutions by Mg2+/K+ type orange peel adsorbents.

Orange peel (OP) was used as raw material to prepare two novel adsorbents: MgOP (Mg(2+) type orange peel adsorbent) and KOP (K(+) type orange peel adsorbent). FTIR and SEM were used to characterize the adsorbents. Effects of pH, solid/liquid ratio, time and metal ion concentration on the Cu(2+) adsorption by these two adsorbents were investigated.

Adsorption of Cu2+ and Cd2+ from aqueous solution by mercapto-acetic acid modified orange peel.

The present article describes the adsorption behaviors of Cu2+ and Cd2+ on mercapto-acetic acid modified orange peel. The prepared adsorbents were characterized using Malvern Zetasizer, infrared spectrophotometer and infrared C-S analyzer. The effect of various parameters like solution pH, contact time, and initial metal ion concentration on adsorption efficiencies of these two metals were studied systematically by batch experiments.

Application of orange peel xanthate for the adsorption of Pb2+ from aqueous solutions.

Pristine orange peel was chemically modified by introducing sulfur groups with the carbon disulfide treatment in alkaline medium. The presence of sulfur groups on orange peel xanthate were identified by FTIR spectroscopic study. Equilibrium isotherms and kinetics were obtained and the effect of various parameters including equilibrium pH, contact time, temperature and initial ion concentration on adsorption of Pb(2+) were studied by batch experiments.

Adsorption study of copper (II) by chemically modified orange peel.

An adsorbent, the chemically modified orange peel, was prepared from hydrolysis of the grafted copolymer, which was synthesized by interaction of methyl acrylate with cross-linking orange peel. The presence of poly (acrylic acid) on the biomass surface was verified by infrared spectroscopy (IR), scanning electron microscopy (SEM) and thermogravimetry (TG). Total negative charge in the biomass surface and the zeta potentials were determined.

[Resonance light scattering study on interaction of solochrome cyanine R with protein and light scattering determination of trace protein].

The resonance light scattering (RLS) of Solochrome Cyanine R(SCR) is greatly enhanced by proteins. Based on this phenomenon, a novel method for the determination of protein by using SCR as a labeling agent was developed. In the pH 4.