test Browse by Author Names Browse by Titles of Works Browse by Subjects of Works Browse by Issue Dates of Works

Advanced Search
& Collections
Issue Date   
Sign on to:   
Receive email
My Account
authorized users
Edit Profile   
About T-Space   

T-Space at The University of Toronto Libraries >
University of Toronto at Scarborough >
Bioline International Legacy Collection >
Bioline International Legacy Collection >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/1159

Title: RESEARCH ARTICLE - Citric acid fermentation by mutant strain of Aspergillus niger GCMC-7using molasses based medium
Authors: Ikram-ul-Haq
Ali, Sikander
Qadeer, M. A.
Iqbal, Javed
Issue Date: Aug-2002
Publisher: Universidad Católica de Valparaíso -- Chile
Citation: Electronic Journal of Biotechnology 5(2)
Abstract: Citric acid fermentation of cane-molasses by submerged fermentation in 15 L stirred fermentor (working volume 9 L) was carried out. A hyper mutant strain of Aspergillus niger GCMC-7 was used in the present study which was obtained from the culture collection of our own labs. Ferrocyanide treated molasses [K4Fe(CN)6 200 ppm] medium containing sugar 150 g/l was employed as the basal fermentation medium. Different cultural conditions such as incubation temperature (30oC), initial pH (6.0), air supply (1.0 l-1l-1min), agitation intensity (200 rpm) and time profile (144 h after inoculation) were optimised for enhanced citric acid production. Maximum amount of anhydrous citric acid obtained during the course of study was 106.65 g/l, with a sugar consumption of 107 g/l. Final pH, ferrocyanide concentration and dry cell mass were 2.1, 60 ppm and 16.5 g/l, respectively.
URI: http://bioline.utsc.utoronto.ca/archive/00000287/01/ej02023.pdf
Appears in Collections:Bioline International Legacy Collection

Files in This Item:

File Description SizeFormat
ej02023.pdf259.92 kBAdobe PDF

Items in T-Space are protected by copyright, with all rights reserved, unless otherwise indicated.