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Production of humic acid from pineapple leaf residue


Citation

Ahmed, Osumanu Haruna and Mohd Hanif, Ahmad Husni and Abd Rahim, Anuar and Musa, Mohamed Hanafi (2003) Production of humic acid from pineapple leaf residue. Journal of Sustainable Agriculture, 22 (1). pp. 113-124. ISSN 1044-0046

Abstract / Synopsis

The study was carried out with the following objectives: (i) to quantify the amount of humic acid (HA) that could be extracted from composted pineapple leaf residue using potassium hydroxide (KOH) produced from pineapple leaf residue, and (ii) to compare the elemental composition, functional groups, and spectral characteristics of HA extracted from composted pineapple leaf using 0.1 M KOH from pineapple leaf and that of analytical grade (0.1 M KOH). The 0.1 M KOH from pineapple leaf residue extracted 20% HA from composted pineapple leaf residue while that of the analytical grade (0.1 M KOH) extracted 30%. The elemental composition (C, H, N, O, and S), functional groups (carboxylic, phenolic OH, and total acidity), and spectral characteristics of the HA extracted using the 2 extractants were generally similar. Potassium hydroxide from pineapple leaves can be used to extract some reasonable amount of HA without appreciably altering the elemental and functional groups constitution as well as the spectral characteristics. The potential of using KOH from pineapple leaf residue in HA studies appears promising. © 2003 by The Haworth Press, Inc. All rights reserved


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Additional Metadata

Item Type: Article
Subject: Pineapple - Residues
Subject: Humic acid
Subject: Potassium hydroxide
Divisions: Faculty of Agriculture
DOI Number: 10.1300/J064v22n01_09
Publisher: The Haworth Press, Inc.
Keywords: Humic acids; KOH; Pineapple leaves; Potassium hydroxide
Depositing User: Azwana Abdul Rahman
Date Deposited: 28 Nov 2011 18:53
Last Modified: 09 Dec 2015 14:48
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1300/J064v22n01_09
URI: http://psasir.upm.edu.my/id/eprint/18558
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