bioactive compounds

Study on Wheat and Oat Bran Extracts and Their Antioxidant Properties

The article presents the results of a study on aqueous and aqueous-ethanolic extracts derived from the cell wall material of oat and wheat bran, focusing on their content of phenolic compounds, flavonoids, and amino acids. The total phenolic content was assessed spectrophotometrically using the Folin–Ciocalteu method, while the total flavonoid content was determined via an aluminum chloride colorimetric assay. Gallic acid, ferulic acid, and quercetin were also identified in the samples using thin-layer chromatography.

Mathematical modeling of the extraction process of target components from yeast biomass

A generalized mathematical model of the process of extraction of target components from yeast biomass (carbohydrates, lipids and ribonucleic acids)has been developed on the basis of experimental studies.  It is substantiated that the theoretical provisions are satisfactorily consistent with the experimental results of the research.  The obtained model allows to describe with sufficient accuracy the kinetics of extraction of carbohydrates, lipids and ribonucleic acids from yeast biomass, to determine the yield of the extract and to predict the optimal time of extraction

Total phenolic and flavonoid content, antioxidant activity of thalictrum foetidum

The objective of the present study was to determine the total content of phenolics and flavonoids in extracts of Thalictrum foetidum. The total phenolic content was estimated spectrophotometrically using Folin Ciocalteu method. The total content of flavonoids was determined by spectrophotometric analysis, based on the measurement of the absorption of the complex of aluminum chloride with flavonoids. The antioxidant effects of the extracts Thalictrum foetidum were investigated.