Engineers here have used their patented fibrous-bed bioreactor to genetically alter a bacterium so that it produces 50 percent more of the chemical propionic acid than the organism produces normally.

Propionic acid is a valuable bio-based platform chemical utilised widely in the food, ... Traditionally produced through microbial fermentation using species such as Propionibacterium ...

The trials showed that the chitosan modified the ruminant fermentation in a manner that could turn out to be beneficial for the animal; for example, with increments in the production of propionic ...

The trials showed that the chitosan modified the ruminant fermentation in a manner that could turn out to be beneficial for the animal; for example, with increments in the production of propionic ...

The study describes how elevated levels of the preservative, propionic acid (PPA)--used to extend shelf life and reduce mold in packaged foods, breads and cheeses—can adversely affect the ...