Molasses | Syrian Journal of Agricultural Research SJAR

Bayan Mohammad Muzher^*(1) Ola Tawfeek Al-Halabi⁽¹⁾ and Anton Salim Anton⁽²⁾

(1). Pome and Grapevine Research Division, Horticultural Department, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.

(2). Fruits Physiology Lab, Horticultural Department, GCSAR, Damascus, Syria.

(*Corresponding author: Dr. Bayan Muzher. E. mail: bmuzher@hotmail.com).

Received: 05/11/2018 Accepted: 16/12/2018

Abstract

The present research was carried out at Pome and Grapevine Division and Horticultural Department in General Commission for Scientific Agricultural Research (GCSAR) during 2011 and 2012 seasons to study the effect of cultivar and harvest date on the productivity and qualitative characters of apple molasses. Apple fruits were collected from Golden delicious, Starking delicious and Stark rimson cultivars in two harvest dates 5/10 and 5/11. Apple molasses was manufactured and stored in normal room temperature for one year. Results showed that the second harvest date significantly produced more quantity of molasses than the first one in all studied cultivars, and Golden delicious cultuvar revealed highest productivity (7.4 Kg apple fruits/1 Kg molasses), while Starking delicious cultivar revealed the highest productivity than the two studied cultivars in the first date (11.1 Kg apple fruits /1 Kg molasses). Chemical analysis of molasses showed that the second harvest date showed the highest content of TSS, TS, and titratable acidity in all cultivars compared with the first one, and Starking delicious molasses revealed the highest content of TSS and TS (74.75% and 64.37%, respectively) in comparison with the two other cultivars. The results indicated that after one year of storage, there were no significant differences in the color, flavor and chemical components of molasses. Consequently, apple molasses as a new product characterized by good qualitative characters.

Key words: Apple, Molasses, Total soluble solids, Total sugars.

Full Paper in Arabic: PDF

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: nisrinnakshoo@yahoo.com).

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

Abstract

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