The chemical constituents of Hoya diversifolia blume

Date of Publication

6-2019

Document Type

Master's Thesis

Degree Name

Master of Science in Chemistry

Subject Categories

Botany

College

College of Science

Department/Unit

Chemistry

Thesis Adviser

Consolacion Y. Ragasa

Defense Panel Chair

Jaime Raul O. Janairo

Defense Panel Member

Alicia M. Aguinaldo
Glenn V. Alea

Abstract/Summary

Plant accession of Hoya diversifolia, originally obtained from Lucban, Quezon Province, was used in this study as part of the research on chemical profiling of the Philippine Hoyas - a group of waxy ornamental plant indigenous and endemic to the country.
The dichloromethane extracts of the leaves of H. diversifolia afforded β-amyrin cinnamate (HDL2) and β-sitosterol (HDL5) while the stem extract from the same plant sample yielded lupeol cinnamate (HDT1) and taraxerol (HDT3). Squalene (HDL6/HDT2) was also reported in both plant parts. The structure of β-amyrin cinnamate was elucidated using 1D- and 2D-NMR spectroscopy while those of the rest were identified by comparison of their respective 1D-NMR spectra with those already reported in the literatures.
Although the compounds were already reported to have been previously extracted from different plant sources, this is the first report of these compounds from Hoya diversifolia.

Abstract Format

html

Language

English

Format

Electronic

Accession Number

CDTG008216

Keywords

Hoya--Philippines; Squalene; Plants—Analysis

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3-5-2025

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