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Mass transfer coefficients in reactive extraction of lactic acid from fermentation broths in hollow-fibre membranes

✍ Scribed by Christian Scheler; Milan K. Popovic; Eugene L. Iannotti; Rakesh K. Bajpai

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
628 KB
Volume
77
Category
Article
ISSN
0008-4034

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✦ Synopsis

Abstract

Mass transfer of lactic acid was investigated during its extractive recovery from fermentation broths in a hydrophobic hollow‐fibre membrane module. The solvent and the aqueous phases were continuously recycled through the hollow‐fibre module into their respective reservoirs, and the mass transfer rate was calculated from the measurements of concentration of lactic acid in solvent phase. Mainly, the tubeside resistance controlled the mass transfer rate. A mathematical analysis was conducted for the mass transfer process in the membrane module and values of the overall mass transfer coefficient were estimated at different flow rates.

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✍ Nurcan Tik; Emine Bayraktar; Ülkü Mehmetoglu 📂 Article 📅 2001 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 105 KB

## Abstract Extractive lactic acid fermentation was investigated in the presence of sunflower oil and Alamine‐336 (with oleyl alcohol as the diluent solvent). Lactic acid was produced in various media at 37 °C using __Lactobacillus delbrueckii__ (NRRL‐B 445). First, the effects of oleyl alcohol (33