What are the Chemical methods used for food preservatives?

The chemical substances which are added to the food materials to prevent their spoilage and to retain their nutritive value are called food preservatives.
Category: Food & Drinks 8 years ago
salekin ansari
Asked 8 years ago

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Food preservatives help to control the spread of bacteria which can cause life threatening illnesses such as salmonellosis or botulism.
They are added to food to enhance appearance and taste. Depending on the purpose, there are preservatives used for different purpose. For example, Antioxidants are used to absorbing oxygen in the food and thereby arresting oxidation of the constituents in the food.
rambabu
Answered 6 years ago
rambabu

benzoic acid is a good agent.
arjun sai
Answered 7 years ago
arjun sai

benzoic acid
Aakash Agarwal
Answered 6 years ago
Aakash Agarwal

Benzoic acid, proionic acid and many acids use as preservatives in foods.
Sasikanth
Answered 6 years ago
Sasikanth

The most commonly used are the acids, such as sorbic acid, benzoic acid and propionic acid. These check mainly the growth of yeasts and molds. Sorbic acid is used for preservation of syrups, salads jellies and some cakes. Benzoic acid is used for beverages, margarine, apple cider etc.

Propionic acid is an ingredient of bread and bakery products. Sulphur dioxide, as gas or liquid is also used for dried fruits, molasses and juice concentrates. Ethylene oxide is used for spices, nuts and dried fruits.
ajay
Answered 8 years ago
ajay

chemical methods used include :-

1. use of nitrites

2.use of sulphites

3.use of benzoic acid- due to its antibacterial activity

4.use of ascorbic acid- due to their antioxidant properties 

shivam yadav
Answered 3 years ago
shivam yadav

There are many chemical methods to preserve food and few of them are :
Antioxidants preserve freshness in meats. Emulsifiers re used to maintain the consistency of French dressing. and lecithin are used in ice-cream.
fazelath Imraan
Answered 8 years ago
fazelath Imraan

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