Carbohydrate profile of the coconut testa

Date

3-1989

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Florinia E. Merca

Abstract

Quimado, Rolando O. University of the Philippines at Los Banos, March, 1989. Carbohydrate Profile of the Coconut Testa.

Adviser: Dr. Florinia E. Merca

The testa from three coconut cultivars, namely: Laguna; San Ramon and Mestiza were isolated and analyzed for its carbohydrate composition.

Acid hydrolysis of the testa yielded higher percentage of sugars on 3% sulfuric acid treatment than with 5% sulfuric acid. Of the three cultivars, the highest total sugar content was obtained from San Ramon. The sample contains 10.39% total sugars. Mestiza and Laguna cultivars have 10.12% and 8.75% total sugars, respectively.

Gas-liquid chromatographic analysis of alditol acetate of the defatted sample showed that mannose is the major monosaccharide of the testa. On the average, it comprises 57.93% of all the sugars analysed. Other sugars present were glucose, xylose, arabinose and galactose.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1989 C4 Q56

Document Type

Thesis

This document is currently not available here.

Share

COinS