Mention a product of human welfare obtained with the help of each one of the following microbes :
(b) Saccharomyces cerevisiae
(c) Propionibacterium shermanii
(d) Aspergillus niger
LAB: Lactic acid bacteria (LAB); Lactobacillus is used in the production of curd from milk.
Saccharomyces cerevisiae: It is used in the baking industry.
Propionibacterium shermanii: It is used in the production of cheese.
Aspergillus niger: It is used in the production of citric acid.