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13C NMR study of the effect of aerobic treatment of olive mill wastewater (OMW) on its lipid-free content

El Hajjouji, Houda and Merlina, Georges and Pinelli, Eric and Winterton, Peter and Revel, Jean-Claude and Hafidi, Mohamed 13C NMR study of the effect of aerobic treatment of olive mill wastewater (OMW) on its lipid-free content. (2008) Journal of Hazardous Materials, vol. 154 (n° 1-3). pp. 927-932. ISSN 0304-3894

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Official URL: http://dx.doi.org/10.1016/j.jhazmat.2007.10.105

Abstract

Olive mill wastewater was treated by an aerobic bio-process at different values of pH (with or without addition of lime), for 45 days on a laboratory scale, to evaluate the reduction of the organic load. The lipid content showed an appreciable change in relation to the applied treatment both for total lipids and for the different fractions (neutral lipids, monoglycerides and phospholipids). 13C NMR spectroscopy was performed on initial and final samples both raw and after lipid extraction. The main spectral differences were observed in the C-alkyl region (0–50 ppm), in the C O-alkyl/N-alkyl region (50–110 ppm), and in the C-carboxylic (160–200 ppm) region, providing information on the alterations occurring in the different biochemical entities composing this complex biomatrix (e.g. lipids and carbohydrates) according to the treatment.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0304389407015956
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > University of Cadi Ayyad - UCAM (MOROCCO)
Laboratory name:
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Deposited By:Nadia Kelmouss

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