Cultures of Streptococcus lactis and Streptococcus cremoris
were grown in sterile 11% nonfat milk (NFM) at 32 C for 17 hr with
the pH maintained at 6. 3 with sodium carbonate. The cells were
harvested and resuspended in a medium of 5% gelatin, 5% sodium
citrate, 2% monosodium glutamate and...
Freeze-dried concentrates (DRICONS) of lactic streptococcal
starter bacteria (single and mixed strains) were prepared in different
lyophilization media and stored under vacuum and several gases.
DRICONS were tested for survival and acid-producing activity after
storage for up to a year by rehydration with water to the original
pre-lyophilization volume. Acid...
In an attempt to investigate the probable roles of lactic starter
flora in the development of fruitiness and slit-openness in Cheddar
cheese, several experimental lots of cheese were made with different
commercial lyophilized starters until the defect could be consistently
duplicated. From many such trials, two cultures, B and C,...
A report in the literature suggesting that the use of cottage
cheese dressing cultured with S. diacetilactis would afford enhanced
flavor and shelf life in the finished product prompted this study to
examine reasons for its effectiveness. The method used involved
addition of a culture of S. diacetilactis 18-16 to...