Part VI 



CULTURE PRODUCTS 



Chapter XXV 



CULTURE OF THE BACILLUS 

 BULGARICUS 



Historic Among the various lactic acid-pro- 

 ducing bacteria, it was found by Metclmikoff 

 that the bacillus bulgaricus, isolated in Massol's 

 laboratory at Geneva, exerts an antagonistic 

 action against the growth of putrefactive bac- 

 teria by the large amount of acid which it pro- 

 duces. Metclmikoff further discovered that 

 the bacteria which cause putrefaction will not 

 live in the presence of the bacillus bulgaricus, 

 which, he found, is the only lactic acid bacillus 

 known that will survive ingestion, reach the 

 large intestine and continue to live there, creat- 

 ing lactic acid and displacing the putrefactive 

 bacteria. 



Action The therapeutic value of a culture of 



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