Production of Bio ethanol from Molasses Using Zymomonas Mobilis Bacteria

Nisrine Nakshoo*(1) Adel Safar(2) and Ahmad Alebrahim(3)

(1). National Commission for Biotechnology, Ministry of High Education, Damascus, Syria.(2). Food Science Department, Faculty of Agriculture, Damascus University, Damascus, Syria.
(3). Food Engineering Department, Faculty of Chemical and Petroleum Engineering, Albaath University, Homs, Syria.
(*Corresponding author: Dr. Nisrine Nakshoo, E-Mail:

Received: 17/10/ 2015                                     Accepted: 30/01/ 2016


This research was carried out in the National Commission for Biotechnology in Syria, during 2011- 2013. The aim of this research was to study to effect of some growth parameters on production of ethanol using LMG 404 strain of Zymomonas mobilis bacteria, which was imported from Belgium. Four levels of temperature (25, 30, 35 and 40° C), and  pH values (6, 6.5, 7 and 7.5), and Brix% (16, 20, 24 and 28) were studied on the ability of this strain to produce ethanol from sugar beet molasses. The results showed that the highest ethanol production was at 30º C, pH=6.5, and Brix=16%.

Key words: Molasses, Fermentation, Ethanol, Zymomonas mobilis.

Full paper in Arabic: Production of Bio ethanol from Molasses Using Zymomonas Mobilis Bacteria