The yoghurt is made from ________
(a) Lactobacillus bulgaricus
(b) Streptococcus thermophilus
(c) S. cremoris
(d) Mixed culture of Lactobacillus bulgaricus and Streptococcus thermophilus
This question was addressed to me by my college director while I was bunking the class.
My question is from Bacteria in section Micro-organisms in Milk of Dairy Engineering