Types of bacteria found in milk and milk products
- The acid producing: –
- It is responsible for conversion of lactose into lactic acid.
- Streptococcus lactis
- Streptococcus cremoris
- Lactobacillus acidophillus
- Lactobacillus bulgaricus
- Lactobacillus thermophillus
- Aroma producing bacteria: –
- They are responsible for the production of desirable aroma and flavor in milk product.
- Streptococcus citrovorus
- Streptococcus paracitrovorus
- Streptococcus diacetilactis
- Gas producing bacteria: –
- These are undesirable type of bacteria ferment lactose and produce acid & gas.
- Eschericha coli
- Aerobacter acrogenes
- Peptonizing type of bacteria: –
- The bacteria, which show a tendency to break down the casein by a process known as proteolysis or peptonization.
- Bacillus subtilis
- Bacillus mesentericus
- Bacillus cereces
- Bacillus mycoides
- Bacillus noves
- Bacillus magatherium
- Ropiness type of bacteria: –
- These are a number of bacteria, which are able to bring about a peculiar change in milk, or these organisms form gum-like substance.
- Alligenes viscosus
- Alcaligenes viscolactis
- Toxins producing bacteria: –
- These bacteria are producing poisonous compounds in the dairy products known as toxins.