Determinaion of five antinutritional factors in sword bean (Canavalia gladiata (Jacq.) DC.)

Date

6-1984

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Evelyn Mae T. Mendoza

Abstract

Three cultivars of sword bean (Canavalia gladiata). Were analyzed for phytic acid content, phytohemagglutinins, tannins, trypsin inhibitors and cyanogenic glucosides. Different plant parts of sword bean were used namely the immature and mature leaves, green pods and mature seeds. Sword bean immature leaves had phytic acid content of 0.04-0.08% for accessions 8-4, 8-6 and 8-9. Mature leaves had 0.22% phytic acid for all accessions. The phytic acid content of green pods significantly differed from the mature seeds having a value of 0.01-0.016% for green pods and 1.56-1.60% for dried seeds. The hemagglutinating activity of sword bean accessions 8-4 and 8-9 were determined. The titer concentration of sword bean accessions was 1:256 for both accessions. Tannin content of green pods was considerably lower than the mature seeds (1.36-1.46% catechin for green pods and 3.35-5.00% catechin for mature seeds). Trypsin inhibitor activity was lower in mature leaves (4.13-5.40 TIU/mg sample) than in immature leaves (6.0-6.7% TIU/mg sample).

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

This document is currently not available here.

Share

COinS