Separation of phenylacetic acid from fermentation broth by bipolar electrodialysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F18%3AN0000071" target="_blank" >RIV/28676092:_____/18:N0000071 - isvavai.cz</a>

Result on the web

<a href="http://www.czemp.cz/cs/protected-node?destination=node/1795&back=http%253A%252F%252Fwww.czemp.cz%252Fcs&protected_page=1795" target="_blank" >http://www.czemp.cz/cs/protected-node?destination=node/1795&back=http%253A%252F%252Fwww.czemp.cz%252Fcs&protected_page=1795</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Separation of phenylacetic acid from fermentation broth by bipolar electrodialysis

Original language description

The main aim of this work was separation of phenylacetic acid from model solution of fermentation broth by electrodialysis using bipolar membranes. Phenylacetic acid has wide variety of use in pharmaceutical (production of ẞ-lactam, analgesics, etc.), biotechnological and also in perfume industry (honey-like odor). In recent years, a lot of focus was aimed at biotechnological production of organic acids. Thanks to biotechnological production, such product can be labelled as natural according to EU legislation, which affects the product price on the market. However, downstream processing of the final product after bioproduction is often time-consuming and costly. Electrodialysis with bipolar membranes is environmentally-friendly separation process that can be suitable way of processing organic acids. When the phenylacetic acid is produced by Gluconobacter oxydans from 2-phenylethanol final fermentation medium consists mostly of phosphate buffer and produced phenylacetic acid. Therefore, electrodialysis with bipolar and anion-exchange membranes can be used for the separation of phenylacetic acid from fermentation broth in one step. Kinetics of phenylacetic acid separation was studied at various temperatures and applied voltages. According to results, phenylacetic acid concentration in diluate was reduced from approximately 4 g/L to approximately 0.34 g/L and in concentrate solution, approximate phenylacetic acid concentration of 3.1 g/L was gained in 240 minutes at 35°C and applied voltage of 30 V.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/LO1418" target="_blank" >LO1418: Progressive development of the Membrane Innovation Centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Workshop of Students´ Presentations 2018

ISBN

978-80-906831-3-6

ISSN

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e-ISSN

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Number of pages

11

Pages from-to

39-39

Publisher name

Czech Membrane Platform

Place of publication

Česká Lípa

Event location

Česká Lípa

Event date

Oct 24, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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