Conglomeratin: a new antibacterial flavonol derivative from Brenan (Euphorbiaceae).

A new prenylated kaempferol, conglomeratin (), alongside known compounds including flavonoids ( and ), ellagic acid derivatives ( and ), triterpenoids ( and ), and a coumarin () were isolated from the leaves () and stem bark () of . Their structures were elucidated using spectroscopic and spectrometric techniques. The antibacterial assay was performed using disc diffusion method against Gram-positive and Gram-negative microorganisms.

Brewers' spent grain in adsorption of aqueous Congo Red and malachite Green dyes: Batch and continuous flow systems.

Sorption of Congo Red (CR) and Malachite Green (MG) dyes currently used in pigments and clothing industries were investigated using brewers' spent grain (BSG) from a local brewery. Adsorption increased with a higher adsorbent weight and lower colorant concentrations. Accumulation of CR and MG was optimal at acidic pH and neutral pH respectively.

Adsorption of methylene blue dye from aqueous solutions using Eichhornia crassipes.

Adsorption of methylene blue (MB) from aqueous solution using dried roots, stems, and leaves of Eichhornia crassipes biomass obtained from Lake Victoria was studied. Batch experimental results revealed that the adsorption process was highly dependent on adsorbent dosage, initial MB concentration, E. crassipes particle size and aqueous solution temperature.