This invention provides a fecal microbial freeze-
drying protective solution. Through the synergistic effect of components such as
phosphorylcholine polymer,
glycerol,
trehalose,
ergothioneine, L-
cysteine, melibiose,
isomaltooligosaccharide, and stachydrine, it effectively reduces the damage to
bacterial activity during the freeze-
drying process, improves the stability of freeze-
drying preservation, and enhances the ability to maintain bacterial
metabolic activity. It plays a significant role in maintaining the diversity and
functional activity of the bacterial
community.