- A Saccharomyces cerevisiae
- B Lactobacillus
- C Aspergillus niger
- D Penicillium notatum
Correct answer: B. Lactobacillus
Explanation: Lactobacillus is the bacterium responsible for converting milk into curd through lactic acid fermentation.
Concept context
Microorganisms in food, medicine, sewage treatment, biocontrol, and biofertilizers