Xylo-oligosaccharide is a common health supplement that is becoming more and more popular. Many people drink xylo-oligosaccharides to regulate gastrointestinal function and improve constipation symptoms. Xylo-oligosaccharides, also known as xylo-oligosaccharid...

Test materials: fresh milk, xylo-oligosaccharides, Lactobacillus bulgaricus (Lb), Streptococcus thermophilus (St). Strain activation: Activate Lactobacillus bulgaricus and Streptococcus thermophilus in skim milk three times until their activity is stabl...