Academic CentreNatural anthocyanidin dyes (E163 (i)–(iii)) represent flavonoids that localize in the vacuole of cell in water and are found in berries, including their processed products. The most important representatives are cyanidins (E163a), delphinidins (E163b), malvidins (163c)...
Essential oils contain phenols, acids, antioxidants, vitamins, provitamins, hormones, prohormones, enzymes, coenzymes and other compound groups. Essential oils are classified according to the components of the most important chemical compounds or their values determined by the pharmacological effect...
Sterol research methods in biological matrices under gas chromatography conditions mostly differ by various sample preparation techniques. A particularly labour-intensive process is the extraction of sterols from oils of vegetable origin, given their low content...
Taking into account the multi-component chemical pollution, analytical control becomes topical, and it must be focused on the identification of a wide range of pollutants by applying gas chromatography. Using appropriate methodology, it is possible to detect organic compounds of high and low volatility in soil, municipal and industrial waste, wastewater and elsewhere...