In the recent past, there has been an explosion of probiotic health-based products. However, there are many reports indicated that there is poor survival of probiotic bacteria in these products. Further, the survival of these bacteria in the human gastro-intestinal system is questionable. Providing probiotic living cells with a physical barrier against adverse environmental conditions is therefore an approach currently receiving considerable interest. Microencapsulation being one of the most modern methods has considerable effects on probiotic survival. | Microencapsulation of probiotics by calcium alginate and gelatin and evaluation of its survival in simulated human gastro-intestinal condition