Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process

The precursors of 2-pyrone-4,6-dicarboxylic acid (PDC) were investigated from selected oil palm cultivars in Malaysia. The studied cultivars include Dura x Pisifera (Dura x URT), Dura x Tenera, Deli dura x AVROS, Dumpy x Yangambi x AVROS, Deli dura x yangambi, Deli dura x Pisifera x H&C. All sam...

Full description

Saved in:
Bibliographic Details
Main Author: Saary, Nur Syahirah
Format: Thesis
Language:English
Published: 2011
Subjects:
Online Access:http://eprints.usm.my/45585/1/NUR%20SYAHIRAH%20BINTI%20SAARY_HJ.pdf
http://eprints.usm.my/45585/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.usm.eprints.45585
record_format eprints
spelling my.usm.eprints.45585 http://eprints.usm.my/45585/ Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process Saary, Nur Syahirah T Technology (General) The precursors of 2-pyrone-4,6-dicarboxylic acid (PDC) were investigated from selected oil palm cultivars in Malaysia. The studied cultivars include Dura x Pisifera (Dura x URT), Dura x Tenera, Deli dura x AVROS, Dumpy x Yangambi x AVROS, Deli dura x yangambi, Deli dura x Pisifera x H&C. All samples were divided into 11 parts; outer bark, trunk (inner part), frond (rachis and petiole), leaves, fruits (flesh, albumen and kernel shell) and empty fruit bunch (EFB fiber, midrib spine leaflets and stalk of fruit bunch). Subcritical water extraction and alkaline subcritical water extraction were chosen to investigate the optimum conditions to produce PDC precursors. Oil palm trunk powder (inner part) was used in both extractions to find the optimum condition of PDC precursors. Three parameters were used for subcritical water extraction that includes temperatures, times and volumes of water. For alkaline subcritical water extraction four parameters were used which were concentrations, temperatures, times and volume of sodium hydroxide (NaOH) solutions. The results indicated that, optimum condition for subcritical water extraction was at 200°C, 40-60 min and 100 ml. While for alkaline subcritical water extraction showed the best presence of PDC precursors at 0.1M, 180°C, 20 min and 100 ml of NaOH solvent. From the results Dura x Pisifera (Dura x URT) showed high total yield of PDC precursors of 8.40%. While trunk (inner part) and kernel shell consisted high yield of total PDC precursors. Results obtained from high performance liquid chromatography (HPLC) and confirmed by nuclear magnetic resonance (NMR) showed that the ρ-hydroxybenzoic acid was the main precursor of PDC in the oil palm biomass. 2011-12 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/45585/1/NUR%20SYAHIRAH%20BINTI%20SAARY_HJ.pdf Saary, Nur Syahirah (2011) Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Saary, Nur Syahirah
Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process
description The precursors of 2-pyrone-4,6-dicarboxylic acid (PDC) were investigated from selected oil palm cultivars in Malaysia. The studied cultivars include Dura x Pisifera (Dura x URT), Dura x Tenera, Deli dura x AVROS, Dumpy x Yangambi x AVROS, Deli dura x yangambi, Deli dura x Pisifera x H&C. All samples were divided into 11 parts; outer bark, trunk (inner part), frond (rachis and petiole), leaves, fruits (flesh, albumen and kernel shell) and empty fruit bunch (EFB fiber, midrib spine leaflets and stalk of fruit bunch). Subcritical water extraction and alkaline subcritical water extraction were chosen to investigate the optimum conditions to produce PDC precursors. Oil palm trunk powder (inner part) was used in both extractions to find the optimum condition of PDC precursors. Three parameters were used for subcritical water extraction that includes temperatures, times and volumes of water. For alkaline subcritical water extraction four parameters were used which were concentrations, temperatures, times and volume of sodium hydroxide (NaOH) solutions. The results indicated that, optimum condition for subcritical water extraction was at 200°C, 40-60 min and 100 ml. While for alkaline subcritical water extraction showed the best presence of PDC precursors at 0.1M, 180°C, 20 min and 100 ml of NaOH solvent. From the results Dura x Pisifera (Dura x URT) showed high total yield of PDC precursors of 8.40%. While trunk (inner part) and kernel shell consisted high yield of total PDC precursors. Results obtained from high performance liquid chromatography (HPLC) and confirmed by nuclear magnetic resonance (NMR) showed that the ρ-hydroxybenzoic acid was the main precursor of PDC in the oil palm biomass.
format Thesis
author Saary, Nur Syahirah
author_facet Saary, Nur Syahirah
author_sort Saary, Nur Syahirah
title Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process
title_short Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process
title_full Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process
title_fullStr Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process
title_full_unstemmed Determination Of 2-Pyrone-4, 6-Decarboxylic Acid Precurors From Oil Palm Tree Using Different Extraction Process
title_sort determination of 2-pyrone-4, 6-decarboxylic acid precurors from oil palm tree using different extraction process
publishDate 2011
url http://eprints.usm.my/45585/1/NUR%20SYAHIRAH%20BINTI%20SAARY_HJ.pdf
http://eprints.usm.my/45585/
_version_ 1648738907068563456
score 13.211869