The MA and AA content in the ORGANIC samples in mg/g of dry C. asiatica are similar in content to the VIETGAP samples (Fig. ). In September and December 2021, and then January, February, May and July of 2022, the AA content was higher than MA. Our results are in agreement with the results of an Indian research group who found a significant variation in biomass and accumulation of centellosides such as asiaticoside, madecassoside, asiatic acid and madecassic acid during the months of the year: in a warm and humid climate their accumulation was higher than in a cool climate . Srithongkul et al. investigated the impact of the light intensity on the growth and accumulation of triterpenoids in C. asiatica in Thailand, planted corresponding to a PPDF (photosynthesis photon flux densities) value of 362.5 μmol.m -2 s -1 (full sunlight: PPDF = 933.1 μmolm -2 s -1 ), which is the lower limit for commercial production of C. asiatica . The climate and light intensity in Thailand are similar to that in Hue city, Vietnam. Finally, it is important to know qualitatively about the accumulation of the three triterpenoids during cultivation over the course of the year, i.e. how their free acidic and glycosidic status varies.