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Production of short-chain fatty acids (SCFAs) by glucose fermentation of K. pneumoniae C strain. (A) Total ion chromatogram for separation of the mixture of SCFAs containing acetate (Ac), propionate (PA), isobutyrate (iso-BA), and butyrate (BA) was displayed by running the GC-MS analysis. (B) The mass spectra for acetate, propionate, isobutyrate, and butyrate with their corresponding molecular ions (m/z) are shown.
