Isolation and partial characterization of allelopathic chemicals from common purslane Portulaca oleracea L.

Date

6-1998

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Evelyn B. Rodriguez

Abstract

Regulacio, Michelle dela Cruz, University of the Philippines at Los Baiios, June 1998. Isolation and Partial Characterization of Allelopathic Chemicals from Common Purslane (Porlulaca oleracea L.).

Adviser: Dr. Evelyn B. Rodriguez

Co-Adviser: Dr. Evamarie P. Capareda

Crude extracts from common purslane were obtained through sequential extraction using solvents ranging from polar to non-polar. Their inhibitory activity was tested on seed germination of radish. Bioassay-guided chromatographic fractionation of the CH2Cl2 extract, the most inhibitory among the crude fractions, led to the isolation of two compounds, Allelol and Allelo2. Spectroscopic and chemical analyses indicate that Allelol is possibly an alcohol with alkyl and alkenyl chains while Allelo2 appears to have a flavonoid skeleton with -OH substituents.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1998 C4 R44

Document Type

Thesis

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