African Journal of Biotechnology
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Article Number - 65FB88762244


Vol.16(1), pp. 41-50 , January 2017
DOI: 10.5897/AJB2016.15369
ISSN: 1684-5315



Full Length Research Paper

Generation of bioethanol from common date by-products, “Teggaza and Lebghel” in Southern Algeria



Ahmed Boulal
  • Ahmed Boulal
  • Unité de Recherche en Energie Renouvelables en Milieu Saharien, URERMS, Centre de Développement des Energies Renouvelables, CDER, 01000, Adrar, Algeria.
  • Google Scholar
Mabrouk Kihal
  • Mabrouk Kihal
  • Laboratoire de microbiologie appliquée, département de biologie, faculté sciences de la nature et de la vie, Université Oran1 Ahmed Ben Bella, 31100, Oran, Algeria.
  • Google Scholar
Cherif Khelifi*
  • Cherif Khelifi*
  • Unité de Recherche en Energie Renouvelables en Milieu Saharien, URERMS, Centre de Développement des Energies Renouvelables, CDER, 01000, Adrar, Algeria.
  • Google Scholar
Boudjemaa Benali
  • Boudjemaa Benali
  • Unité de Recherche en Energie Renouvelables en Milieu Saharien, URERMS, Centre de Développement des Energies Renouvelables, CDER, 01000, Adrar, Algeria.
  • Google Scholar







 Received: 29 March 2016  Accepted: 09 December 2016  Published: 04 January 2017

Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Date by-products constitute the principal food for the oasis populations in Middle East and North Africa. Dates contents consist of 70 to 80% of reducing sugars, and do not require an intensive energy and labour for thermophysical pre-treatment. They can serve as a good feedstock for bioethanol generation through fermentation and distillation. Algeria is among the top sixth producers of dates in the world with more than 250,000 tons/year; from these, more than 30% can be lost for different reasons and may be of low quality. In the laboratory, after an alcoholic fermentation of the  substrate of the date varieties, Teggaza and Lebghel (T & L) using bakery yeast at 30°C for 72 h, the distilled and rectified date juice generated the highest ethanol ( 88° and 90°) with acceptable productions of 2.5 and 2.78 mL/kg/h, and assessed scale efficiencies of 23.57 and 26.2%. This is unlike the one (ethanol; 50%) directly generated by chemical reaction using the same quantity of sugar. The efficiencies that were obtained seem satisfactory and encourage the great scaling development of bioethanol generation using date waste biomass abundant in Algerian Sahara.

Key words: Algerian Sahara, alcoholic fermentation, bioethanol, bakery yeast, dates by-product, distillation

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APA Boulal, A., Kihal, M., Khelifi, C., & Benali, B. (2017). Generation of bioethanol from common date by-products, “Teggaza and Lebghel” in Southern Algeria. African Journal of Biotechnology , 16(1), 41-50.
Chicago Ahmed Boulal, Mabrouk Kihal, Cherif Khelifi and Boudjemâa Benali. "Generation of bioethanol from common date by-products, “Teggaza and Lebghel” in Southern Algeria." African Journal of Biotechnology 16, no. 1 (2017): 41-50.
MLA Ahmed Boulal, et al. "Generation of bioethanol from common date by-products, “Teggaza and Lebghel” in Southern Algeria." African Journal of Biotechnology 16.1 (2017): 41-50.
   
DOI 10.5897/AJB2016.15369
URL http://academicjournals.org/journal/AJB/article-abstract/65FB88762244

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