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Extractive lactic acid fermentation using ion-exchange resin

✍ Scribed by Aradhana Srivastava; Pradip K. Roychoudhury; Vikram Sahai

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
645 KB
Volume
39
Category
Article
ISSN
0006-3592

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✦ Synopsis

Lactic acid fermentation is an end-product-inhibited reaction. The restriction imposed by lactic acid on its fermentation can be avoided by extractive fermentation techniques. Studies were performed by attaching an ion-exchange resin packed column with a 2-L fermentor for separation of lactic acid. The fermentation, in a conventional batch mode, resulted in a lactic acid yield of 0.828 g * g-' and a lactic acid productivity of 0.313 g . L-' . h-'. However, these could be further enhanced to 0.929 g . g-' and 1.665 g . L-' * h-' by extractive fermentation techniques. The effect of temperature on extractive fermentation was remarkable and has been included in this work. Key words: lactic acid Lactobacillus delbreuckii extractive fermentation product inhibition packed-column and ionexchange resin

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