Analysis Of Sap Sugar And Starch Content Of Felled Oil Palm Trunks At Different Storage Time
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Date
2011-02
Authors
Abdul Hamid, Zubaidah Aimi
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
This research investigated the potential use of oil palm sap as a feedstock for
bioethanol production. Sap from squeezed oil palm trunks was investigated. The sugar
and starch content were further analyzed based on various cultivars, storage time, age
and location.
Four types of cultivars were used for the study that include; Dura x Pisifera
mix (Dura x URT), Dumpy x Yangambi x AVROS, Deli Dura x Yangambi (D3D x
L236T) and Deli Dura x Pisifera x H&C. The felled oil palm trunks were stored at a
different duration of storage time; 0, 15, 30, 45, 60 and 75 days, before they were cut
into discs. The disc was divided into 3 parts: inner (A), middle (B), and peripheral (C)
parts, respectively. Each parts of the OPT was squeezed to obtain the fresh sap. High
Performance Liquid Chromatography (HPLC) and phenol sulphuric acid method were
used to determine the total sugar and individual sugar content of the sap. Starch in oil
palm samples was analyzed using the method by Humphrey and Kelly. The anatomy
structure of oil palm trunks was conducted through the Scanning Electronic Microscopy
(SEM) and taken from the transverse section. The physical properties of the sample;
moisture content and density, were investigated in accordance to American Society for
Testing and Materials (ASTM) standard.
Description
Keywords
Sap Sugar starch , Oil Palm Trunks