Determination of vitamin C content in different extracts of the Alchemilla vulgaris L.

Abstract

In recent years, researchers are interested and focused on the identification of bioactive components in plants and food that affects the health, and may also reduce the risk of some diseases. The research of bioactive components, includes very extensive studies both in conventional breeding and biotechnological researches, with special reference to the possibility to increase their content. Alchemilla vulgaris L. is a plant from the Rosaceae family. Recent scientific research has shown that the source prevents the growth of many types of bacteria including staphylococci - a bacterium that has become resistant to many antibiotics. Within the experimental part of this final work, the following analyzes were performed: preparation of macerates, extraction of samples in the Soxlet apparatus, ultrasonic extraction and determining the content of vitamin C in the extracts obtained. In determining the content of vitamin C, we noticed that the highest content of this vitamin, determined in the extract obtained by maceration (9.75 mg / 100 g), was slightly lower in ultrasonic extraction (7.50 mg / 100 g), and the smallest content in Soxhlet- of this extract (3.45 mg / 100 g).