Stamen Grigorov (1878<unk>1945), mudzidzi wechiremba wekuBulgaria muGeneva, ndiye akatanga kuongorora microflora yeyogati yekuBulgaria. Muna 1905, akaitsanangura seyakaumbwa nespherical uye tsvimbo-yakaita lactic acid-inogadzira mabhakitiriya. Muna 1907, iyo tsvimbo-yakaita bhakitiriya yainzi Bacillus bulgaricus (ikozvino Lactobacillus delbrueckii subsp. bulgaricus).
Bacillus bulgaricus