Nisin .

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Nisin . Specification

Molecular Formula
C143H230N42O37S7

Solid Content
Minimum 50%

Heavy Metal (%)
<0.001%

Appearance
Powder

Structural Formula
Available upon request

Physical Form
Powder

Water Solubility
Freely soluble

Melting Point
Decomposes

Taste
Slightly salty

Assay
>900 IU/mg

Shelf Life
24 months

Solubility Tests
Clear solution in water

Other Names
E234; Nisin A

Type
Polypeptide bacteriocin

Purity
>98% (on dry basis)

Application
Preservative in food, dairy, canned foods, beverages

About Nisin .

Specification of Nisin

Items	Specification
Appearance	Grey or off--white powder
Identity	Complies
Moisture	MAX 3%
pH of 10% water solution:	3.10-3.60
Heavy metals	MAX 20 mg/kg
Arsenic (As):	MAX 3 mg/kg
Hydrous Potency	MIN 1000 IU/MG

Table 2. The function of Nisin in Canned food for heat processing

Canned Food	pH Value	Fo Value*
without Nisin	with Nisin**
Chocolate Milk	6.6	9.39.6	2.63.4
Thick Cheese	5.0	28.830.0	9.19.9
Vegetable Soup	4.55.0	24.630.0	9.09.9
Meat Soup	4.55.0	15.430.0	8.110.3
Vegetable	4.66.0	15.440.7	7.912.0
Pea	5.5	6.07.2	4.15.1
Mushroom	6.0	17.519.3	2.53.3
Tomato	4.5	0.00.3	0.00.3
Fruit	3.84.5	0.00.8	0.00.4
Meat	5.5	19.219.7	3.110.8
Fish	5.0	3.47.3	3.95.4
Grain	5.0	30.040.0	9.09.6

Ideal Natural Preservative for Food Safety

Nisin offers dependable antimicrobial protection for a wide spectrum of food and beverage applications. Its natural origin and proven effectiveness ensure product stability and safety, making it the preferred choice for food manufacturers seeking clean-label solutions.

High Purity and Quality Assurance

With a purity level exceeding 98% and a low heavy metal content, Nisin meets stringent industry standards. Each batch undergoes rigorous testing, including water solubility assessments and assay validation, guaranteeing consistent potency and safety.

FAQs of Nisin .:

Q: How is Nisin typically used in the food industry?

A: Nisin is commonly incorporated into processed foods, dairy products, canned goods, and beverages as a preservative. It is added during manufacturing to inhibit spoilage-causing bacteria, effectively extending the shelf life of food items.

Q: What are the main benefits of using Nisin as a preservative?

A: Nisin provides powerful antimicrobial protection against a range of bacteria, helping maintain product freshness and safety. Its natural origin allows for clean-label claims, meeting consumer demand for fewer synthetic additives in food.

Q: When should Nisin be added during food processing?

A: Nisin is generally introduced during the blending or mixing stage of food preparation. Adding it early in the process ensures even distribution and maximizes its preservative effects throughout the finished product.

Q: Where can Nisin be sourced and in what form is it available?

A: Nisin is supplied by manufacturers and exporters based in India and is readily available in powder form. It can be ordered in bulk for industrial use, and structural formula details can be provided upon request.

Q: What is the solubility and appearance of Nisin in formulations?

A: Nisin is freely soluble in water and forms a clear solution upon dissolution. Its physical form is a slightly salty powder, making it easy to blend into various food matrices without affecting product texture or taste.

Q: How do you ensure the quality and safety of Nisin?

A: Every batch of Nisin is tested for purity (>98%), microbial activity (assay >900 IU/mg), and heavy metal content (<0.001%). Quality control measures also include solubility tests and solid content analysis to guarantee product consistency.

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