noun
fermentation microorganism; fermentative bacteria
Refers to bacteria, yeasts, or other microorganisms used in fermentation processes. Common in food science, brewing, and biotechnology contexts.
発酵菌の働きで、ヨーグルトができる。
Yogurt is made through the action of fermentation bacteria.
このチーズには特別な発酵菌が使われている。
Special fermentation microorganisms are used in this cheese.
乳酸菌 are lactic acid bacteria, a specific type of fermentation microorganism. 発酵菌 is the general category.
Compound of 発酵 (fermentation) and 菌 (bacterium, microorganism). The term is straightforward and modern, with no obscure historical derivation.