Influence of the extraction parameters of antocianes from the fruits of aronia melanocarpa (michx.) elliott in the extraction assisted with ultrasound. preliminary results

In recent years, more and more studies have highlighted the potential of fruits of Aronia melanocarpa (Michx.) Elliott for the pharmaceutical and cosmetic industry, due to the high content of polyphenols and anthocyanins. Currently, the use of agricultural production of Aronia melanocarpa is mainly done through the use of fruit juice or powders in the food industry. In the present study we set out to achieve a superior route of fruit valorization by obtaining extracts for the pharmaceutical and cosmetics industry. For ultrasound-assisted extraction, Aronia melanocarpa fruits were pre-processed (drying, grinding, sieving) and then subjected to ultrasonic-assisted solvent extraction. The study carried out in this phase of the experiment followed the influence of the concentration of the solvent (water/ethanol ratio) on the anthocyanin content and the chromatographic profile of the extract. The chromatographic profile was obtained using the HPTLC method. The analysis material was represented by 3 extracts obtained under various experimental conditions, from the species Aronia melanocarpa (Michx.) Elliot fruits. The best HPTLC chromatographic imprint was shown for Aronia fruit extracts prepared in 3:1 water-ethanol mixture, at amplitude of 40%. In the other experimental variants the anthocyanin content was low.