β-Sitosterol improves experimental colitis in mice with a target against pathogenic bacteria.

In this article, we aim to examine the novel effects of β-sitosterol on murine experimental colitis. β-Sitosterol significantly reduces the weight loss, colon length, and alleviated microscopic appearances of colitis induced by dextran sulfate sodium. This compound also decreases the levels of TNF-α, IL-6, and IL-1β in intestinal tissue of mice with experimental colitis in a concentration-dependent manner.

Purification and characterization of a thermostable xylanase from Paenibacillus sp. NF1 and its application in xylooligosaccharides production.

High levels of extracellular xylanase activity (211.79 IU/mg) produced by Paenibacillus sp. NF1 were detected when it was submerged-cultured.

[XPS and SEM spectroscopy study of hyperdispersant on atrazine surface].

The authors studied the electronic condition of comb-shaped copolymer of polycarboxylic acid type hyperdispersant adsorbed on the surface of atrazine particles with X-ray photoelectron spectroscopy (XPS). The thickness of the adsorption was calculated. The results suggested that after adsorbing the dispersant, the peak intensity of N(1s) and Cl(2p) of the interface of atrazine particle decreased sharply, while the absorption of Cl(2s) almost diminished.

[Fourier transform infrared spectroscopy and FT-Raman spectrometer study of hyperdispersant on atrazine surface].

The main methods in performing the study of the adsorption properties of hyperdispersant on atrazine surface were fourier transform infrared spectroscopy (FTIR) and FT-Raman spectrometer (FT-Raman), and the results suggested that the hydrogen bond force was the main force combining the surface of atrazine particles and the dispersant. And it also promoted the adsorption of dispersant on atrazine particles. However, the information of what accurate quantity of the dispersant adsorbed on the surface of atrazine should a successful suspension ability of the suspension concentrate acquire is still not available.