Microwave-assisted depolymerization of black-liquor lignin in formic acid was studied, concentrating on the yield of liquid fractions as bio-oil 1 (mainly aromatic monomers) and bio-oil 2 (mainly aromatic oligomers) and the distribution of the specific compositions. Bio-oil 1 (9.69%) and bio-oil 2 (54.39%) achieved their maximum yields under 160 °C with the reaction time of 30 min. The chemical...

A controlled medication delivery system has historically been used to produce certain rates of release or spatial concentrations active compounds. Recent developments in drugs and polymer science technology have improved innovative drug systems made bio-adhesive microspheres, advancing the use "bio-adhesion" delivery. This research evaluates MSs via transmucosal management routes, comprising mu...

During the screening of Actinomycetes for novel bio-active components, we found that the terrestrial Streptomyces sp. isolate GW71/2497 produced large quantities of chartreusin, which precipitated during the concentration of the extract and was responsible for the high activity against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, and Streptomyces viridochromogenes (Tü 57). On a s...

Multinuclear platinum anticancer complexes are a proven option to overcome resistance of established anticancer compounds. Transferring this concept to ruthenium complexes led to the synthesis of dinuclear Ru(II)-arene compounds containing a bis(pyridinone)alkane ligand linker. A pronounced influence of the spacer length on the in vitro anticancer activity was found, which is correlated to the ...

Pyrolysis of Alcea pallida stems was performed in a fixed-bed tubular reactor with and without catalyst at three different temperatures. The effects of pyrolysis parameters including temperature and catalyst on the product yields were investigated. It was found that higher temperature resulted in lower liquid (bio-oil) and solid (bio-char) yields and higher gas yields. Catalysts had different e...

Interest in the extraction of phytochemical bioactive compounds, especially polyphenols from biomass, has recently increased due to their valuable biological potential as natural sources antioxidants, which could be used a wide range applications, foods and pharmaceuticals green polymers bio-based materials. The present research study aimed provide comprehensive chemical characterization compos...

Background It has been established that bio-active peptides may provide improved health, muscular performance and immune function. Enhancements in athletic performance and gains in lean muscle mass have also been reported with training. While the safety of bio-active peptides has been previously reported, it was the purpose of this investigation to examine the specific effects of a commercial b...

Hydrogen produced from renewable energy sources can present significant environmental benefits as an alternative to fossil fuels or as a means for clean power generation via fuel cells. The aqueous fraction of bio oil can be used as a source for hydrogen production, if reformed in the presence of active catalytic materials. Recently, we introduced the concept of the spouted bed reactor for the ...

Syzygium zeylanicum L. (DC) (SZL) has been used in antidiabetes treatment for ages. However, the scientific evidence of active agents that have antidiabetic activity and response against biological activities is limited. In this study, components SZL trunk-bark extract (SZL extract) were identified using principal component analysis (PCA), their assessed. The results indicated ethyl acetate fra...

Bio-oil can be fractionated into three parts according to their boiling points. This research reported that light distillates could be converted into oxygenated liquid fuels through a two-stage hydrotreatment approach, using a Pd/C catalyst. The main goal of the first hydrotreatment stage was to stabilize the high active components, which contained carbon–carbon double bonds and aldehyde groups...