INVESTIGATION OF THE COMPOSITION OF LOW-MOLECULAR BIOLOGICALLY-ACTIVE SUBSTANCES IN THE RANET PURPLE APPLE POMACE

Abstract

This study is aimed at investigating low-molecular biologically-active substances in the Ranet Purple apple pomace. Pomace extraction using solvents and supercritical CO₂ fluid extraction were carried out. In order to study the effect of the moisture level of raw material and the addition of modifiers on the efficiency of super-critical CO₂ fluid extraction, we used dried pomace, pomace of natural moisture (21.5%) and pomace of natural moisture with the addition of alcohol. All the extracts were analyzed by the gas chromatography-mass spectrometry method (GC-MS). In each of the aforementioned extracts, the relative content of main chemical compounds was determined, including alkanes, phenols, esters, alcohols, carboxylic acids and oxo-compounds.