Variation of total phenolic compounds and free radical scavenging activity of Artemisia campestris L. herb during vegetation
| Date |
|---|
2022-10-21 |
Plenary Session. Abstracts. Scientists session
ISBN 978-9955-15-769-4
Bibliogr.: p. 36
Background: Artemisia campestris L. is a perennial plant, widespread in North Europe, Asia, North America and North Africa [1]. Due to vast distribution areas, A. campestris occur in distinct ecotypes. Ecotypes possess different phytogeographical profiles of phytoconstituents. Due to the lack of research on this species in Lithuania and the limited number of studies that have been done in Europe, it is important to determine the amounts of phenolic compounds and free radical scavenging activity of its herbal raw material. Phenolic compounds are well known as antioxidants and other significant bioactive substances that have attracted study for a long time due to their advantages for human health and their potential to treat and prevent from a wide range of diseases. Artemisia extracts and phenolic compounds exhibit antibacterial, cardioprotective, immune system promoting, anti – inflammatory and skin protective effects [2]. Aim: To determine the amount of total phenolic compounds in extracts of Artemisia campestris L. collected form natural habitat in Rumšiškės town, Lithuania and evaluate antioxidant activity during vegetation. Results: The total phenolic content varies significantly during the vegetation period (from 90,294 ±1,68 Up to 128,864 ±5,54 mg GRE/g). The greatest amount of total phenolic compounds (128,864±5,54 mg GRE/g) and the strongest antiradical activity (126,483±1,374 µmol TE/g) was determined during the flowering period. The lowest content of phenolic compounds (90,294±1,68 mg GRE/g) and the weakest antiradical activity (37,583±3,58 µmol TE/g) was found at the beginning of the vegetation. Conclusion: The vegetation cycle has a significant impact on the variation of total phenolic content and radical scavenging activities. The preferred time for the collection of raw material could be the massive flowering period, due to the highest amount of phenolic compounds and antioxidant activity.