Selection of tropical lactic acid bacteria for enhancing the quality of maize silage

The objective of this study was to select lactic acid bacteria (LAB) strains isolated from silage and assess their effect on the quality of maize silage. The LAB strains were inoculated into aqueous extract obtained from maize to evaluate their production of metabolites and pH reduction. The ability...

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Bibliographic Details
Published in:Journal of dairy science 2013-12, Vol.96 (12), p.7777-7789
Main Authors: Santos, A.O., Ávila, C.L.S., Schwan, R.F.
Format: Article
Language:English
Subjects:
acetic acid
acetic acids
Aerobiosis
Animals
corn
corn silage
Fermentation
Hydrogen-Ion Concentration
inoculant
lactic acid bacteria
Lactobacillus - metabolism
Lactobacillus buchneri
Listeria
metabolites
poly(vinyl chloride)
silage
Silage - microbiology
Silage - standards
silos
Zea mays
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Summary:The objective of this study was to select lactic acid bacteria (LAB) strains isolated from silage and assess their effect on the quality of maize silage. The LAB strains were inoculated into aqueous extract obtained from maize to evaluate their production of metabolites and pH reduction. The ability to inhibit the pathogenic and silage-spoilage microorganisms’ growth was evaluated. Nine LAB strains that showed the best results were assessed in polyvinyl chloride experimental silos. The inoculation of the LAB strains influenced the concentration of lactic and acetic acids and the diversity of Listeria. The inoculation of silages with Lactobacillus buchneri (UFLA SLM11 and UFLA SLM103 strains) resulted in silages with greater LAB populations and improvements after aerobic exposure. The UFLA SLM11 and SLM103 strains identified as L. buchneri showed to be promising in the treatment of maize silage.
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.2013-6782