The titratable acidity of PSMincreased from0.06% to 0.48% after 24 h
of fermentationwith the co-cultivation of allmicroorganisms. After 24 h
at ±4 °C, the titratable acidity increased to 0.50% of lactic acid with UFLA BFFCX 27.1 and LACA 4, and with the threemixed cultures. Isanga
and Zhang (2007) developed fermented peanut milk with the mixed
cultures of Lactobacillus delbrueckii ssp. bulgaricus, and Streptococcus
salivarius ssp. thermophilus. In accordance, the authors reported that fermentation
with combined cultures had higher titratable acidity values
(0.39%) than with the single cultures of these strains.