&lt;b&gt;Inoculum concentration and inoculation time for propionic acid production from whey using mixed culture of &lt;i&gt;Lactobacillus helveticus&lt;/i&gt; and &lt;i&gt;Propionibacterium freudenreichii&lt;/i&gt; PS-1
Acta Scientiarum. Technology/Acta scientiarum. Technology