Comparison of Pseudomonas fragi and Gluconobacter oxydans for production of xylonic acid from hemicellulose hydrolyzates

Johanna Buchert, Jurgen Puls, Kaisa Poutanen

    Research output: Contribution to journalArticleScientificpeer-review

    40 Citations (Scopus)

    Abstract

    Xylonic acid was produced efficiently from pure xylose by Pseudomonas fragi ATCC 4973 and Gluconobacter oxydans subsp. suboxydans ATCC 621. The yield from 10% xylose was in both cases over 95% of the theoretical.
    However, the sensitivities of the strains towards the major inhibitors found in hemicellulose hydrolyzates, ie. acetic acid, furfural and two lignin-derived compounds, varied. G. oxydans tolerated all these inhibitors better than P. fragi. In tests using steamed hemicellulose hydrolyzate, G. oxydans was able to utilize the substrate only at dilute xylose concentrations.
    After ether extraction or mixed bed resin pretreatment, the fermentability of the hydrolyzate was increased significantly.
    Original languageEnglish
    Pages (from-to)367-372
    JournalApplied Microbiology and Biotechnology
    Volume28
    Issue number4-5
    DOIs
    Publication statusPublished - 1988
    MoE publication typeA1 Journal article-refereed

    Fingerprint Dive into the research topics of 'Comparison of Pseudomonas fragi and Gluconobacter oxydans for production of xylonic acid from hemicellulose hydrolyzates'. Together they form a unique fingerprint.

    Cite this