liquid - liquid extraction of 2, 3-butanediol from fermentation broth

نویسندگان

hassan pahlavanzadeh

gholam khayati

nasser ghaemi

ebrahim vasheghani-farahani

چکیده

recovery of metabolites from fermentation broth by solvent extraction can be used to optimize fermentation processes. end-product reutilization, low product concentration, large volumes of fermentation broth and the requirements for large bioreactors, in addition to the high cost largely contributed to the decline in fermentative 2, 3-butanediol production. extraction can successfully be used for in-situ alcohol recovery in 2, 3-butanediol fermentations to increase the substrate conversion.in the present work organic extraction of 2, 3-butanediol produced by klebsiella pneumoniae fermentation was studied to detect solvent effect on 2, 3-butanediol production and determination of efficient volume of solvent. the aim of this research was liquid-liquid extractive fermentation systems evaluation as an alternative to overcome the end product effect and to increase of 2, 3-butanediol production by k. pneumoniae because conventional fermentative production of 2, 3-butanediol by k. pneumoniae hasthe disadvantage of product reutilization by the organism. the highest 2, 3-butanediol production (23.01 g/l) achieved when 20% oleyl alcohol was used.

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Liquid - Liquid Extraction of 2, 3-Butanediol from Fermentation Broth

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عنوان ژورنال:
iranian journal of chemistry and chemical engineering (ijcce)

ناشر: iranian institute of research and development in chemical industries (irdci)-acecr

ISSN 1021-9986

دوره 31

شماره 2 2012

کلمات کلیدی
[ ' e x t r a c t i v e f e r m e n t a t i o n ' , 2 , 3 , ' b u t a n e d i o l ' , ' o l e y l a l c o h o l ' , ' l i q u i d ' , ' l i q u i d e x t r a c t i o n ' ]

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