Adsorptive Pretreatment of crude glycerol to 1,3-propanediol fermentation by Clostridium diolis

During the production of fatty acids from plant oils, e.g. for the production of biopolymers or in the biodiesel and soap production, glycerol accumulates as a side product. Using this residual material with Clostridium diolis for the production of 1,3-propanediole is not efficient, due to inhibitor...

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Published inChemie ingenieur technik Vol. 86; no. 1-2; pp. 129 - 135
Main Authors Wiesen, Sebastian, Tippkotter, Nils, Muffler, Kai, Suck, Kirstin, Sohling, Ulrich, Ruf, Nils, Ulber, Roland
Format Journal Article
LanguageEnglish
Published 01.02.2014
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Summary:During the production of fatty acids from plant oils, e.g. for the production of biopolymers or in the biodiesel and soap production, glycerol accumulates as a side product. Using this residual material with Clostridium diolis for the production of 1,3-propanediole is not efficient, due to inhibitory effects of impurities. Fatty acids have been identified as inhibiting substances. After removal of the residual fatty acids by pretreatment with adsorbents, it has been possible to use this glycerol with high conversion efficiency towards 1,3-propanediole.Original Abstract: Bei der Gewinnung von Fettsaeuren aus Pflanzenolen, z.B. zur Herstellung von Biopolymeren, oder bei der Biodiesel- und Seifenproduktion, faellt Glycerin als Nebenprodukt an. Bei der Biokonversion dieses Rohstoffes zu 1,3-Propandiol wird der Produktionsorganismus Clostridium diolis durch Verunreinigungen im Rohglycerin gehemmt. Als inhibierende Substanzen konnten freie Fettsaeuren identifiziert werden. Mithilfe eines adsorptiven Aufarbeitungsverfahrens ist es gelungen, die Fettsaeuren zu entfernen und die Konversionseffizienz zu 1,3-Propandiol zu erhohen.
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ISSN:0009-286X
1522-2640
DOI:10.1002/cite.201300080