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Nistrol

Nisitrol is a natural antimicrobial agent and used as a natural food preservative. The active ingredient is Nisin on a 50% salt base. Nisin is effective against wide range of Gram-positive bacteria particularly spore forming bacteria.
It inhibits certain strains of food pathogens, such as Clostridium botulinum, Bacillus subtilis, Bacillus stearothermophilus, Staphylococcus aureus and Listeria.
  • Nisin was recognised as a food preservative by FAO/WHO in 1969.
  • Nisin was granted GRAS status by US FDA in 1988.
  • Nisin has an EU number of E234.
  • Nisin has a NZFSA number as a preservative 234.

Methods of Application:

Nisin is applied in solution or as dry powder mixed into food during processing with heat. It is also applied in surface treatment by spray or immersion method or in packaging material. Nisin is most stable at pH 3.0 in solution.

Application of Nisin:

Nisin is used in many food products in the range of 3.0 to 8.0 pH.
Food Products
Usage Levels
Benefit of Application
Dairy Products:

Processed cheese and cheese spreads

100 - 200 mg/kg

Extends shelf life by 4 to 6 months

Direct acidified cheese

100 - 200 mg/kg

Extends shelf life by 2 to 3 months

Fresh and recombined milk

50 - 100 mg/kg

Extends shelf life by 3 to 5 days

Cream and cream products

50 - 100 mg/kg

Extend shelf life by 10 to 15 days

Pasteurized dairy desserts

100 - 200 mg/kg

Extends shelf life by 7 to 10 days

Canned evaporated milk

80 - 100 mg/kg

Reduces heating time by 8 to 10 min

 

 

 

Soy Products:

 

 

Soy milk

80 - 100 mg/kg

Extends shelf life of UHT milk.

Soybean curd

100 - 200 mg/kg

Extends shelf life of bean curd

Dressings and sauces

50 -100 mg/kg

Extends shelf life by 2 to 3 weeks

Canned peas, beans, and potato

100 - 150 mg/kg

Reduces canning time

Canned mushrooms

150 - 200 mg/kg

Reduces canning time

Retort pouch packet food

100 - 200 mg/kg

Extends shelf life

Fruits and vegetable juices

50 - 100 mg/kg

Extend shelf life by 7 to 10 days

Bottled vegetables

100 - 200 mg/kg

Reduces canning time

Liquid egg products

150 - 200 mg/kg

Extends shelf life

Fresh coconut milk

80 - 100 mg/kg

Extends shelf life by 2 to 3 days

Flour products like pasta, noodles

80 - 100 mg/kg

Extends shelf life by few days

Muffins and cakes

100 -150 mg/kg

Extends shelf life by 1 to 2 weeks

Beer and related products

50 - 80 mg/kg

Extends shelf life

Meat and sausages

200 ppm*

* Use with 200 ppm nitrate

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