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Separation of Bioactive Small Molecules, Peptides from Natural Sources and Proteins from Microbes by Preparative Isoelectric Focusing (IEF) Method
Published on: June 14, 2020
Phenylethanoid glycosides isolated from Paraboea paniculata.
Tan Hor Yue1, Anthony Ho Siong Hock, Lim Chan Kiang
1Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia.
Natural Product Communications
|July 24, 2012
Summary
This study reports the first phytochemical analysis of Paraboea paniculata, isolating three phenylethanoid glycosides. These compounds showed weak cytotoxic and free radical scavenging activities.
Area of Science:
- Phytochemistry
- Natural Products Chemistry
- Pharmacognosy
Background:
- Paraboea paniculata is a plant species within the Gesneriaceae family.
- The phytochemical constituents of P. paniculata have not been previously investigated.
Purpose of the Study:
- To conduct the first phytochemical investigation of Paraboea paniculata leaves and rhizomes.
- To isolate and characterize bioactive compounds from the plant.
- To evaluate the cytotoxic and antioxidant potential of the isolated compounds.
Main Methods:
- Phytochemical isolation techniques were employed to obtain compounds from plant extracts.
- Structural elucidation of isolated compounds was performed using spectroscopic methods.
- Cytotoxicity was assessed against the K-562 cell line.
- DPPH free radical scavenging assay was used to determine antioxidant activity.
Main Results:
- Three phenylethanoid glycosides were successfully isolated and identified: 3,4-dihydroxyphenethyl-(3"-O-beta-D-apiofuranosyl)-beta-D-glucopyranoside, calceoralarioside E, and acteoside.
- The isolated compounds exhibited weak cytotoxic activity against K-562 cells, with IC50 values ranging from 27.05 to 40.18 microM.
- In the DPPH assay, the compounds demonstrated antioxidant properties with IC50 values ranging from 25.00 to 75.89 microM.
Conclusions:
- This study provides the initial phytochemical profile of Paraboea paniculata.
- The isolated phenylethanoid glycosides possess mild cytotoxic and antioxidant activities.
- Further research may explore the therapeutic potential of these compounds.
