Table 2.

Delivery system of microorganisms.

Bacterial Strains	Compositions	Delivery Systems	Functions	References
Lactobaccillus casei NCDC 298	Modified alginate	Hydrogel	Protects probiotics from enzymatic hydrolysis	[106]
E. coli MG1655	Alginate and protamine	Microcapsule	Protects probiotics from acidity and bile salts	[107]
NS	Alginate	Microsphere	Antiacid and colon targeting	[108]
L. rhamnosus	Chitosan	Microcontainers	Targeted delivery of probiotics	[109]
Exiguobacterium	Chitosan and alginate	Microparticles	Targeted delivery of probiotics	[110]
Bifidobacterium pseudocatenulatum	Calcium alginate	Microgels	Improve the stability of probiotics	[43]
Bifidobacterium	Thiolated oxidized konjac glucomannan	Microspheres	Improves intestinal colonization of probiotics	[111]
Lactobacillus rhamnosus GG	Amylopectin	Nanofibers	Enhanced probiotic delivery capabilities	[112]
Bifidobacterium	Alginate	Microcapsules	Improve the survival rate of probiotics	[114]
Streptomyces lividans 66	Alginate	Micro-encapsulation	Improve the enzyme production capacity of probiotics	[115]

Note: Not explicitly stated (NS).