Effect of stored oil palm trunk sap towards methyl ester synthesis / Nurnuha Shamsir... [et al.]

Shamsir, Nurnuha and Abu Jahar, Noorhasmiera and Zakaria, Sarani and M Aizat, Wan and Ling, Pua Fei and Syed Jaafar, Sharifah Nabihah (2017) Effect of stored oil palm trunk sap towards methyl ester synthesis / Nurnuha Shamsir... [et al.]. ESTEEM Academic Journal, 13. pp. 1-6. ISSN 1675-7939

Official URL: https://uppp.uitm.edu.my

Abstract

Oil palm trunk (OPT) has highest content of sap, 80% of the overall weight. OPT sap contains free sugars which can be converted into valuable compounds such as ester. The objective of this study is to determine the changes of free sugars at different storage time and the effect on methyl ester synthesis. The sap was extracted and stored at different durations time (1, 7, 14, 21 and 28 days). 10ml of dried sap was added with 100mg Fe2(SO4)3 EFB and 15ml of methanol. The mixture was put into the autoclave to be heated at 160 oC for 150 minutes. Free sugars found in OPT sap were glucose, fructose and sucrose. The free sugars vary upon the storage time and highest concentration of glucose and fructose achieved at day 21. This is due to hydrolysis of sucrose. The GC-MS analysis identified and quantified several methyl ester such as methyl pyruvate, methyl levulinate, methyl-9- oxononanoate and methyl palmitate. These findings confirmed that the free sugars from OPT sap were possible to be an alternative carbon in ester synthesis

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
Shamsir, Nurnuha
nuhashmsr94@gmail.com
Abu Jahar, Noorhasmiera
hasmieraaj@gmail.com
Zakaria, Sarani
szakaria@ukm.edu.my
M Aizat, Wan
wma@ukm.edu.my
Ling, Pua Fei
gracepua@uniten.edu.my
Syed Jaafar, Sharifah Nabihah
nabihah@ukm.edu.
Subjects: T Technology > T Technology (General)
T Technology > T Technology (General) > Industrial research. Research and development
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus
Journal or Publication Title: ESTEEM Academic Journal
UiTM Journal Collections: UiTM Journal > ESTEEM Academic Journal (EAJ)
ISSN: 1675-7939
Volume: 13
Page Range: pp. 1-6
Keywords: glucose, Fe (SO4), GC-MS, methanolysis, methyl levulinate, methyl-3-acetoxy-3-hydroxypropanoate, 5-hydroxymethylfurfural
Date: August 2017
URI: https://ir.uitm.edu.my/id/eprint/28770
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28770

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