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- Title
Separation and Purification of Biogenic 1,3-Propanediol from Fermented Glycerol through Flocculation and Strong Acidic Ion-Exchange Resin.
- Authors
Mitrea, Laura; Leopold, Loredana Florina; Bouari, Cosmina; Vodnar, Dan Cristian
- Abstract
In the present work, was investigated the separation and purification procedure of the biogenic 1,3-propanediol (1,3-PD), which is a well-known valuable compound in terms of bio-based plastic materials development. The biogenic 1,3-PD was obtained as a major metabolite through the glycerol fermentation by Klebsiella pneumoniae DSMZ 2026 and was subjected to separation and purification processes. A strong acidic ion exchange resin in H+ form was used for 1,3-PD purification from the aqueous solution previously obtained by broth flocculation. The eluent volume was investigated considering the removal of the secondary metabolites such as organic acids (acetic, citric, lactic, and succinic acids) and 2,3-butanediol (2,3-BD), and unconsumed glycerol. It was observed that a volume of 84 mL of ethanol 75% loaded with a flow rate of 7 mL/min completely remove the secondary metabolites from 10 mL of concentrated fermented broth, and pure biogenic 1,3-PD was recovered in 128 mL of the eluent.
- Subjects
FLOCCULATION; GLYCERIN; ORGANIC acids; ION exchange resins; KLEBSIELLA pneumoniae; METABOLITES; SUCCINIC acid
- Publication
Biomolecules (2218-273X), 2020, Vol 10, Issue 12, p1601
- ISSN
2218-273X
- Publication type
Article
- DOI
10.3390/biom10121601