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Volcani Center, Bet Dagan, Israel
ABSTRACT
Total bacterial counts in milk butter-milk and zivda were made after 2.5 h with either phosphate buffered dilution water, 2% sodium citrate, or .1% tryptone diluents. Counts were higher in all products tested with .1% tryptone than with the other diluents. Streptococcus lactis appeared to be susceptible to phosphate or citrate diluents when counted from milk acidified to pH 4.0.
1 Contribution from the Agricultural Research Organization, Volcani Center, Bet Dagan, Israel. 1973 Series, No. 162-E.
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