期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 63, 期 49, 页码 10696-10704出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.5b04834
关键词
winery biomass; solid-state fermentation; metabolomics; GC-MS; multivariate statistics
资金
- Faculty of Science, Engineering and Technology, Swinbume University of Technology
- Land and Water Flagship, Commonwealth Scientific and Industrial Research Organization (CSIRO)
Winery-derived biomass waste was degraded by Penicillium chrysogenum under solid state fermentation over 8 days in a (H2O)-H-2-supplemented medium. Multivariate statistical analysis of the gas chromatography mass spectrometry (GC-MS) data resulted in the identification of 94 significant metabolites, within 28 different metabolic pathways. The majority of biomass sugars were utilized by day 4 to yield products such as sugars, fatty acids, isoprenoids, and amino acids. The fungus was observed to metabolize xylose to xylitol, an intermediate of ethanol production. However, enzyme inhibition and autolysis were observed from day 6, indicating 5 days as the optimal time for fermentation. P. chrysogenum displayed metabolism of pentoses (to alcohols) and degraded tannins and lignins, properties that are lacking in other biomass-degrading ascomycetes. Rapid fermentation (3-5 days) may not only increase the pentose metabolizing efficiency but also increase the yield of medicinally important metabolites, such as syringate.
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