After 16 h fermentation, the starter SL778 was cooled rapidly to stop the acidification process, fractioned and stored under different conditions for 14 days. The characteristics of SL778 stored at 4 and −20 ◦C are presented in
Fig. 1. Until 14 days of conservation at 4 ◦C, cell viability was constant while TTA showed an increment since the first day of storage. Organic acid concentrations varied slightly