Monitoring and purification of gluconic galactonic acids produced during fermentation of whey hydrolysate by Gluconobacter oxydans

✍ Scribed by J.C. Motte; N. Van Huynh; M. Decleire; P. Wattiau; J. Walravens; X. Monseur

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 345 KB
• Volume: 507
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)84209-6

✦ Synopsis

Because the sugar concentration of whey is low, the substrate conversion must lead to products with a high added value and with the highest possible yields. Deproteinised and hydrolysed whey was found to be an excellent medium for acidic fermentations and both gluconic and galactonic acids were produced in high yields during the growth of Gluconobacter oxydans on hydrolysed whey.

The production, the identification by ionic high-performance liquid chromatography and the purification of both acids on ion-exchange columns will be described here.