The effects of Lactobacillus plantarum UFLA CH3, Pediococcus acidilactici UFLA BFFCX 27.1, and Torulaspora
delbrueckii UFLA FFT2.4 inoculation on the volatile compound profile of fermentation of Cucumeropsis mannii
cotyledons were investigated. Different microbial associations were used as starters. All associations displayed
the ability to ferment the cotyledons as judged by lowering the pH from 6.4 to 4.4–5 within 24 h and increasing
organic acids such as lactate and acetate. The population of lactic acid bacteria (LAB) and yeasts increased during
fermentation. In the fermentation performed without inoculation (control), the LAB and yeast populations were
lower than those in inoculated assays at the beginning, but they reached similar populations after 48 h. The
Enterobacteriaceae population decreased during the fermentation, and they were not detected at 48 h in the
L. plantarum UFLA CH3 and P. acidilactici UFLA BFFCX 27.1 (LP + PA) and L. plantarum UFLA CH3, P. acidilactici
UFLA BFFCX 27.1, and T. delbrueckii UFLA FFT2.4 (LP + PA + TD) samples. The assays inoculated with the yeast
T. delbrueckii UFLA FFT2.4 exhibited the majority of volatile compounds (13 compounds) characterized by pleasant
notes. The LP + PA + TD association seemed to be appropriate to ferment C. mannii cotyledons. It was able to
control the Enterobacteriaceae population, and achieved high concentrations of esters and low concentrations of
aldehydes and ketones.
The effects of Lactobacillus plantarum UFLA CH3, Pediococcus acidilactici UFLA BFFCX 27.1, and Torulasporadelbrueckii UFLA FFT2.4 inoculation on the volatile compound profile of fermentation of Cucumeropsis manniicotyledons were investigated. Different microbial associations were used as starters. All associations displayedthe ability to ferment the cotyledons as judged by lowering the pH from 6.4 to 4.4–5 within 24 h and increasingorganic acids such as lactate and acetate. The population of lactic acid bacteria (LAB) and yeasts increased duringfermentation. In the fermentation performed without inoculation (control), the LAB and yeast populations werelower than those in inoculated assays at the beginning, but they reached similar populations after 48 h. TheEnterobacteriaceae population decreased during the fermentation, and they were not detected at 48 h in theL. plantarum UFLA CH3 and P. acidilactici UFLA BFFCX 27.1 (LP + PA) and L. plantarum UFLA CH3, P. acidilacticiUFLA BFFCX 27.1, and T. delbrueckii UFLA FFT2.4 (LP + PA + TD) samples. The assays inoculated with the yeastT. delbrueckii UFLA FFT2.4 exhibited the majority of volatile compounds (13 compounds) characterized by pleasantnotes. The LP + PA + TD association seemed to be appropriate to ferment C. mannii cotyledons. It was able tocontrol the Enterobacteriaceae population, and achieved high concentrations of esters and low concentrations ofaldehydes and ketones.
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