3.1. Identification of the best matrix formulation and process
conditions
L. rhamnosus GG was encapsulated by spray-drying using dairy
matrices composed of casein and denatured whey proteins being
previously or not incubated with chymosin. Regarding process
conditions, different outlet air temperatures were tested (85, 70
and 55 C) for each matrix formulation (Table 1). Overall six
powders were produced per batch. It appears that theoretical and
measured outlet temperatures were very close. A good reproducibility
between the two batches were observed.