The amino acid and carbohydrate composition of the herb and roots of Smallanthus sonchifolius.

The free and protein-bound amino acid composition of the herb and roots of Smallanthus sonchifolius was analyzed by HPLC method. Fourteen free and fifteen protein-bound amino acids were determined in yacon herb, and three free and fourteen protein-bound amino acids in the roots. Among the free amino acids, proline (0.

Gas chromatography-mass spectrometry study of the root and herb of Smallanthus sonchifolius.

Smallanthus sonchifolius (yacon) is a new prospective plant cultivated in Europe as a natural sugarcane substitute. It is used for diabetes and for the prevention of obesity. The study of carboxylic acids in the roots and herb of S.

Research in the chemical composition of the bark of Sorbus aucuparia.

The quantitative contents of 40 carboxylic acids, with the prevalence of hexadecanedioic, lignocerinic, behenic, azelaic, palmitic and benzoic acids, and 39 components of essential oil were determined in the extracts of the bark of Sorbus aucuparia by the GC-MS method. The quantitative contents of 6 phenolic compounds, i.e.

Carboxylic acids from brown algae Fucus vesiculosus and Padina pavonica.

Using the gas chromatographic-mass spectrometric method, the content of 28 carboxylic acids was determined in the thalli of Fucus vesiculosus, palmitic, oxalic and malic acids predominating. In the thalli of Padina pavonica, the content of 27 carboxylic acids was determined. Palmitic, oxalic and oleic acids prevail.