Electrodialytic separation of levulinic acid catalytically synthesized from woody biomass for use in microbial conversion

Hiroshi Habe*, Susumu Kondo, Yuya Sato, Tomoyuki Hori, Manabu Kanno, Nobutada Kimura, Hideaki Koike, Kohtaro Kirimura

*この研究の対応する著者

研究成果: Article査読

7 被引用数 (Scopus)

抄録

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).

本文言語English
ページ(範囲)448-453
ページ数6
ジャーナルBiotechnology Progress
33
2
DOI
出版ステータスPublished - 2017 3月 1

ASJC Scopus subject areas

  • バイオテクノロジー

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