1. Alba TM, Tessaro E, Sobottka A (2022) Seasonal effect on phenolic content and antioxidant activity of young, mature and senescent leaves from Anredera cordifolia (Ten.) Steenis (Basellaceae). Braz J Biol 84:254–269
2. AOAC (1980) Official Methods of Analysis, 13th edition. Association of Official Agricultural Chemists, Washington, D. C
3. Azmin SNHM, Nor MSM (2020) Chemical fingerprint of Centella asiatica’s bioactive compounds in the ethanolic and aqueous extracts. Adv Biomark Sci Technol 2:35–44
4. Belwal T, Andola HC, Atanassova MS, Joshi B, Suyal R, Thakur S, Bisht A, Jantwal A, Bhatt ID, Rawal RS (2019) Gotu kola (Centella asiatica). In: Nabavi SM, Silva AS (eds) Nonvitamin and nonmineral nutritional supplements. Academic Press, pp 265–275
5. Blois MS (1958) Antioxidant determinations by the use of a stable free radical. Nature 181(4617):1199–1200