**5. Prebiotic**

Probiotics are indigestible foods that are by beneficial bacteria and promote the growth and activity of probiotics in the gut, therefore probiotics can be used as functional foods. Prebiotics increase the body's immune system by increasing intestinal microbial activity and the production of short-chain fatty acids [10]. The presence of prebiotics in the large intestine causes energy to be created by some bacteria during sugar consumption and fermentation. The most common hosts for prebiotics are Bifidobacterium bacteria and Lactobacillus. Which improves the growth of these two bacterial species and leads to the production of bacteriocins, which are a potential inhibitor of the growth of pathogenic bacteria [11]. Some of the prebiotics available in the inulin market are fructoo oligosaccharides (FOS) and galacto oligosaccharides (GOS), arabinoxylan [11]. Prebiotics can be obtained naturally from sources such as vegetables, fruits and grains. Prebiotics can reduce the incidence and duration of diarrhea, relieve inflammation, prevent colon cancer, and absorb minerals [11]. In a study by Anirban et al., Prebiotics such as fructoligosac (FOS) and inulin were used for stimulate the growth of Bifidobacterium in food [6]. The combination of probiotics and prebiotics leads to the formation of synbiotics. They increase the life and efficiency of probiotic bacteria in the intestine. Research has shown the effect of synbiotics on human health.
