Variation in phytochemicals and bioactivity of the fruits of Eleutherococcus species cultivated in Poland

Neither the chemical profile and bioactivity of the fruits of Eleutherococcus species cultivated in Poland nor the influence of long-term domestic storage of the fruits are known. No changes in the phenols and flavonoids content in the freshly dried and 1-year storage fruits of Eleutherococcus senticosus and Eleutherococcus henryi were found. The 1-year storage fruits of both species exhibited a very high concentration of Mn, Zn and Cu (mg/kg) compared with the fresh-dried fruits. Spathulenol, β-longipinene and iso-longifolol were predominant essential oil compounds. It was observed that a high capacity of the freshly dried E. senticosus fruits were able to scavenge DPPH^* and inhibit Hyal (EC₅₀ 0.1 mg/mL; IC₅₀ 0.58 mg/mL). Due to their health and pharmacological benefits, a better understanding of the impact of the climate change is important to increase the pharmacological utility of the extracts.