Intestinal colonization with affects broiler gut microbiota composition but is not inhibited by daily intake of .

Introduction: Lactobacilli may prevent broilers from colonization with spp. and other gram-negative zoonotic bacteria through lactic acid production and modulation of the intestinal microbiota. This study evaluated the effects of daily intake of 256 (LP256) on loads in ceca and feces of challenged broilers, together with the changes in the gut microbiota.

Crystal structure of the feruloyl esterase from reveals a novel homodimeric state.

Ferulic acid is a common constituent of the plant cell-wall matrix where it decorates and can crosslink mainly arabinoxylans to provide structural reinforcement. Microbial feruloyl esterases (FAEs) specialize in catalyzing hydrolysis of the ester bonds between phenolic acids and sugar residues in plant cell-wall polysaccharides such as arabinoxylan to release cinnamoyl compounds. Feruloyl esterases from lactic acid bacteria (LAB) have been highlighted as interesting enzymes for their potential applications in the food and pharmaceutical industries; however, there are few studies on the activity and structure of FAEs of LAB origin.