LAPSE:2019.1182
Published Article
LAPSE:2019.1182
Rapid Processing of Abandoned Oil Palm Trunks into Sugars and Organic Acids by Sub-Critical Water
Hazwani Ishak, Hiroyuki Yoshida, Noor Azura Muda, Mohd Halim Shah Ismail, Shamsul Izhar
November 24, 2019
Abandoned oil palm trunk (OPT) is among the most abundant left-over biomass in Malaysia and is allowed to decompose naturally in the field. However, the recycling of OPT is less considered although OPT is a bioresource that has a high potential for conversion into value-added products. In this study, waste OPT was rapidly converted by hydrolysis using subcritical water (sub-CW). This work is the first attempt to explore the utilization of waste OPT based on the differences in moisture, cellulose and hemicellulose contents in the top and bottom segments, and from various ages of the waste OPT. 21- and 35-year-old OPTs were divided into top and bottom sections. The OPTs was subjected to sub-CW at a heating rate of 3.8 °C/s at various temperatures and times. The 21-year-old OPT was superior to the 35-year-old OPT for conversion into sugar and organic acid. The yield of the total sugar was between 0.41 and 0.77 kg/kg-OPT in the bottom and top sections. The excellent correlation between the sugar yield and sub-CW ion product (Kw) signified that the sub-CW facilitated the hydrolysis of hemicellulose and cellulose in the OPT. In the bottom segment, fructose had a higher yield, while in the top part glucose was dominant. Sugar degradation from the sub-CW treatment of OPT produced 0.2 kg/kg-OPT organic acids. The treatment of OPT using sub-CW showed promising results in producing sugars and organic acids.
Keywords
hydrolysis, oil palm trunk (OPT), organic acid, subcritical water (sub-CW), sugar
Subject
Suggested Citation
Ishak H, Yoshida H, Muda NA, Ismail MHS, Izhar S. Rapid Processing of Abandoned Oil Palm Trunks into Sugars and Organic Acids by Sub-Critical Water. (2019). LAPSE:2019.1182
Author Affiliations
Ishak H: Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Selangor 43400, Malaysia
Yoshida H: Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Selangor 43400, Malaysia
Muda NA: Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Selangor 43400, Malaysia
Ismail MHS: Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Selangor 43400, Malaysia
Izhar S: Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, Selangor 43400, Malaysia [ORCID]
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Journal Name
Processes
Volume
7
Issue
9
Article Number
E593
Year
2019
Publication Date
2019-09-04
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr7090593, Publication Type: Journal Article
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LAPSE:2019.1182
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doi:10.3390/pr7090593
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Nov 24, 2019
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CC BY 4.0
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[v1] (Original Submission)
Nov 24, 2019
 
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Nov 24, 2019
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https://psecommunity.org/LAPSE:2019.1182
 
Original Submitter
Calvin Tsay
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