Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations

In this study, the growth of Clostridium acetobutylicum was evaluated in Clostridium basal medium (CBM) containing 0.001, 0.5, 1, 2 and 4 % salt concentrations. Although the strain is sensitive to salinity of more than 2 %, the adapted strain was shown to grow even at 6 % salinity. Results indicate...

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Main Authors: Zabihi Reza, Mowla Dariush, Karimi Gholamreza
Format: Article
Language:English
Published: Serbian Chemical Society 2018-01-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0352-5139/2018/0352-51391800013Z.pdf
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author Zabihi Reza
Mowla Dariush
Karimi Gholamreza
author_facet Zabihi Reza
Mowla Dariush
Karimi Gholamreza
author_sort Zabihi Reza
collection DOAJ
description In this study, the growth of Clostridium acetobutylicum was evaluated in Clostridium basal medium (CBM) containing 0.001, 0.5, 1, 2 and 4 % salt concentrations. Although the strain is sensitive to salinity of more than 2 %, the adapted strain was shown to grow even at 6 % salinity. Results indicate adverse effects of salinity on bacterial growth and bioproducts, such as 1- -butanol and butyric acid, whereas the produced acetone is increased by salinity in CBM. In addition, the glucose of CBM is substituted by sugar beet molasses, due to its lower price and greater accessibility. Therefore, molasses-based mediums (MBM) at different concentrations of molasses were examined to assess the effect of molasses concentration on the adapted strain at low salinity. The results showed that 4 and 6 % concentrations of molasses are optimum concentrations for bacterial growth and its production of bioproducts at low salinity. Finally, the simultaneous effects of salinity and molasses concentration on the adapted strain were investigated. For this purpose, molasses-based mediums (MBM) containing 2, 3 and 4 % molasses concentration at 4 % salinity were considered. The results demonstrated that the increase in the molasses concentration raises the production of both butyric acid and acetone.
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spelling doaj.art-5974c8714e264744a1e2b2c7b15874252022-12-21T23:18:29ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212018-01-0183441142310.2298/JSC170822013Z0352-51391800013ZProduction of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrationsZabihi Reza0Mowla Dariush1Karimi Gholamreza2Shiraz University, School of Chemical and Petroleum Engineering, Department of Chemical Engineering, Shiraz, IranShiraz University, School of Chemical and Petroleum Engineering, Environmental Research Centre in Petroleum and Petrochemical Industries, Shiraz, IranShiraz University, School of Chemical and Petroleum Engineering, Department of Chemical Engineering, Shiraz, IranIn this study, the growth of Clostridium acetobutylicum was evaluated in Clostridium basal medium (CBM) containing 0.001, 0.5, 1, 2 and 4 % salt concentrations. Although the strain is sensitive to salinity of more than 2 %, the adapted strain was shown to grow even at 6 % salinity. Results indicate adverse effects of salinity on bacterial growth and bioproducts, such as 1- -butanol and butyric acid, whereas the produced acetone is increased by salinity in CBM. In addition, the glucose of CBM is substituted by sugar beet molasses, due to its lower price and greater accessibility. Therefore, molasses-based mediums (MBM) at different concentrations of molasses were examined to assess the effect of molasses concentration on the adapted strain at low salinity. The results showed that 4 and 6 % concentrations of molasses are optimum concentrations for bacterial growth and its production of bioproducts at low salinity. Finally, the simultaneous effects of salinity and molasses concentration on the adapted strain were investigated. For this purpose, molasses-based mediums (MBM) containing 2, 3 and 4 % molasses concentration at 4 % salinity were considered. The results demonstrated that the increase in the molasses concentration raises the production of both butyric acid and acetone.http://www.doiserbia.nb.rs/img/doi/0352-5139/2018/0352-51391800013Z.pdfClostridium acetobutylicumadapted strainsalinitysugar beet molassesbioproducts
spellingShingle Zabihi Reza
Mowla Dariush
Karimi Gholamreza
Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations
Journal of the Serbian Chemical Society
Clostridium acetobutylicum
adapted strain
salinity
sugar beet molasses
bioproducts
title Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations
title_full Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations
title_fullStr Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations
title_full_unstemmed Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations
title_short Production of biosolvents and acids by salinity-adapted strain of clostridium acetobutylicum: Effects of salt and molasses concentrations
title_sort production of biosolvents and acids by salinity adapted strain of clostridium acetobutylicum effects of salt and molasses concentrations
topic Clostridium acetobutylicum
adapted strain
salinity
sugar beet molasses
bioproducts
url http://www.doiserbia.nb.rs/img/doi/0352-5139/2018/0352-51391800013Z.pdf
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