Electrodialytic separation of levulinic acid catalytically synthesized from woody biomass for use in microbial conversion. (10th January 2017)

• Record Type: Journal Article
• Authors: Habe, Hiroshi; Kondo, Susumu; Sato, Yuya; Hori, Tomoyuki; Kanno, Manabu; Kimura, Nobutada; Koike, Hideaki; Kirimura, Kohtaro
• Is Part Of: Biotechnology progress. Volume 33:Number 2(2017)
• Page Start: 448
• Page End: 453
• Publication Date: 2017-01-10
• Subjects: Levulinate -- cellulosic biomass -- desalting electrodialysis -- microbial conversion -- Pseudomonas sp; Biotechnology -- Periodicals; Food industry and trade -- Periodicals; Bioengineering -- Periodicals; 660.6
• DOI: 10.1002/btpr.2425
• Languages: English
• ISSNs: 8756-7938

Abstract

Abstract : Levulinic acid (LA) is produced by the catalytic conversion of a variety of woody biomass. To investigate the potential use of desalting electrodialysis (ED) for LA purification, electrodialytic separation of levulinate from both reagent and cedar‐derived LA solution (40–160 g L −1 ) was demonstrated. When using reagent LA solution with pH5.0–6.0, the recovery rates of levulinate ranged from 68 to 99%, and the energy consumption for recovery of 1 kg of levulinate ranged from 0.18 to 0.27 kWh kg −1 . With cedar‐derived LA solution (pH6.0), good agreement in levulinate recovery (88–99%), and energy consumption (0.18–0.22 kWh kg −1 ) were observed in comparison to the reagent LA solutions, although a longer operation time was required due to some impurities. The application of desalting ED was favorable for promoting microbial utilization of cedar‐derived LA. From 0.5 mol L −1 of the ED‐concentrated sodium levulinate solution, 95.6% of levulinate was recovered as LA calcium salt dihydrate by crystallization. This is the first report on ED application for LA recovery using more than 20 g L −1 LA solutions (40–160 g L −1 ). © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:448–453, 2017