Variasi alkohol lemak dalam sedimen permukaan di Sungai Sepang Besar, Sepang, Selangor

Translated title of the contribution: Fatty alcohol variations in surface sediments of Sungai Sepang Besar, Sepang, Selangor

Masni Mohd. Ali, Norfariza Humrawali, Pang Qing Ying, Mohd Talib Latif, Mohamad Pauzi Zakaria

Research output: Contribution to journalArticle

Abstract

Composition of fatty alcohols from 19 surface sediment samples collected along Sungai Sepang Besar, Sepang, Selangor were determined. The sediments were extracted and analysed using the Gas Chromatography-Mass Spectrometry (GC-MS) technique. A total of 19 fatty alcohols from C 12 to C 30 including 4 branched compounds were identifed with concentrations in the range 0.02 μg/g - 9.01 μg/g dry weight. C 26 fatty alcohols dominated most sampling stations with concentrations ranging from 0.29 to 5.43 μg/g dry weight and constitued 15.5% of total fatty alcohols. According to individual compounds of fatty alcohols and the [Σ(C 12 - C 20)/Σ(C 22 - C 30)] ratio, Sungai Sepang Besar has a high composition of short-chain fatty alcohols (C 12 - C 20) which mainly originate from marine organisms. However, the Alcohol Sources Index (ASI) showed that terrestrial derived fatty alcohols dominated the area due to high concentration of C 26 compounds in most sampling stations. The value of (odd chain length)/(even chain length) ratios were high for almost all the sampling stations due to high bacterial activities. It can be concluded that the surface sediments of Sungai Sepang Besar contained organic materials from marine, terrestrial and bacterial sources.

Original languageUndefined/Unknown
Pages (from-to)841-851
Number of pages11
JournalSains Malaysiana
Volume40
Issue number8
Publication statusPublished - Aug 2011

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alcohol
sediment
sampling
microbial activity
gas chromatography
mass spectrometry
station

Keywords

  • Fatty alcohol
  • Organic materials
  • Sediments
  • Sungai Sepang

ASJC Scopus subject areas

  • General

Cite this

Variasi alkohol lemak dalam sedimen permukaan di Sungai Sepang Besar, Sepang, Selangor. / Mohd. Ali, Masni; Humrawali, Norfariza; Ying, Pang Qing; Latif, Mohd Talib; Zakaria, Mohamad Pauzi.

In: Sains Malaysiana, Vol. 40, No. 8, 08.2011, p. 841-851.

Research output: Contribution to journalArticle

Mohd. Ali, Masni ; Humrawali, Norfariza ; Ying, Pang Qing ; Latif, Mohd Talib ; Zakaria, Mohamad Pauzi. / Variasi alkohol lemak dalam sedimen permukaan di Sungai Sepang Besar, Sepang, Selangor. In: Sains Malaysiana. 2011 ; Vol. 40, No. 8. pp. 841-851.
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