Caption: Lactobacillus buchneri - Gram-positive, non-spore forming, anaerobic or microaerophilic, rod prokaryote. This bacterium is a heterofermentative bacterium that produces lactic acid and acetic acid during fermentation. When silages are exposed to air, yeasts can degrade lactic acid, which increases the pH and leads to spoiling. L. buchneri is used as a bacterial inoculant to improve the aerobic stability of silage (grass silage, legume silage and grain silage - high moisture grains). Inside silos crops ferment and substances produced in the fermentation process protect the silage from spoilage by yeasts and molds. L. buchneri is a heterolactic microbe that produces high concentrations of acetic acid, and sometimes lesser amounts of 1, 2 propanediol, propanol, and propionic acid. Both acetic acid and propionic acid are more effective at reducing the growth of yeasts and molds than is lactic acid during silage storage.
Magnification*: x1,400
Type: SEM
Copyright 2008 Dennis Kunkel Microscopy, Inc.
Keywords: 02.01.08,271073B,acetic acid,ensiling,silage,propionate,fermentation,glucose fermentation,food spoilage,erythritol,sugar alcohol,grain storage,grain silo,grain fermentation ,Lactobacillus,Lactobacillus buchneri,Gram positive,bacilli,bacillus,bacteria,bacterium,Gram-positive,prokaryote,rod,SEM,propionic acid,rod-shaped,rod shaped,corn silage,grain silage,grass silage,legume silage,anaerobe,anaerobic,1, 2 propanediol,propanol,microaerophilic,aerophilic,spoilage,heterofermentative,heterolactic,heterofermentation,lactic acid,aerobic stability,yeast inhibiton,mold inhibition,bacterial inoculant,bacteria inoculant