The multiplication of S. thermophilus and L. bulgaricus was
greater in yogurts supplemented with P. ostreatus aqueous extract
(POE). The utilization of POE in LF-yogurts improves rheological
properties and texture characteristics (lower firmness but higher
cohesiveness, adhesive, springiness and less syneresis). Scanning
electron microscopy showed different structures, which were more
open and less dense for control. The supplemented yogurts with
POE contained more total phenolics and exhibited higher antioxidant
activity than control at the beginning and the end of storage
(day 28). The POE may be a convenient yogurt ingredient because it
seems to improve the antioxidant ability and the rheological and
structural properties, instead the darker color.