DETERMINATION OF ESSENTIAL OIL CONTENT,COMPOSITION, AND TOTAL POLYPHENOL CONTENT OF RHIZOMA HOMALOMENAE OCCULTAE COLLECTED IN VIETNAM

Tóm tắt

The quality of Rhizoma Homalomenae occultae samples collected in Vietnam was evaluated based on total polyphenol content, total essential oil content, and essential oil composition. The results showed that the total polyphenol content ranged from 0.25% to 2.64%, while essential oil content ranged from 0.27% to 0.92%, meeting the essential oil content criteria specified in the Vietnamese Pharmacopoeia V. Gas chromatography-mass spectrometry (GC-MS) analysis of the essential oil revealed the presence of compounds such as 6-methyl-2-(2-oxiranyl)-5-hepten-2-ol, trans-linalool oxide, hotrienol, L-terpinen-4-ol, α-terpineol, δ-cadinene, spathulenol, and notably linalool, which accounted for over 40% (based on peak area percent). The findings provide valuable data for upgrading quality standards for Rhizoma Homalomenae occultae in Vietnam.