Pretreatment of indian cane molasses for increased production of citric acid

✍ Scribed by Subir Kundu; Tapobrata Panda; S. K. Majumdar; Barun Guha; K. K. Bandyopadhyay

• Book ID: 102766640
• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: English
• Weight: 504 KB
• Volume: 26
• Category: Article
• ISSN: 0006-3592
• DOI: 10.1002/bit.260260915

✦ Synopsis

Abstract

Surface culture citric acid fermentation was carried out by Aspergillus niger T55, a strain isolated from its natural source, using cane molasses, either untreated or treated by various methods. Citric acid biosynthesis is seriously impaired by both organic and inorganic inhibitors. A combined treatment of molasses with tricalcium phosphate, hydrochloric acid, and Sephadex fractionation minimizes the level of inorganic and organic inhibitors in molasses and increases the production of citric acid (65% weight yield based on total reducing sugar). The optimum level of individual metal ions for citric acid production depends on the concentration of other metals in the medium.