Popis: |
When considering the probiotic definition of FAO/WHO, products claiming probiotic effects should contain a sufficient number of viable cells to confer efficacy. Probiotic bacteria, being of intestinal origin, are sensitive to many stresses outside their natural habitat and therefore are difficult to propagate, store and deliver in a viable form. This chapter addresses different aspects of processes that aim to reach maximal cell yields with robust physiology and high resistance to conditions, from production to delivery to the gut. Novel culture and stabilization technologies aiming at the improvement of intrinsic tolerance of probiotic cells or conferring a physical protection against stresses are also discussed. |