You must Sign In to post a response.
  • Food preservative for methi thepala

    Planning to set up a business of selling methi theplas? Want to know the preservatives which can be used to lengthen shelf life? You can check out the suggestions by our ISC experts for your queries and decide how to start your commercial venture.

    I have requirement to know about the approved and listed chemical preservatives to stabilize" Methi thepala" [Gujarati Dish]for long shelf life in room temperature up to 25-30 days or more. I need to sell these thepalas for commercial use in the Indian market.
    It will be highly appreciable if I will get the information about these preservatives and the company or the stores from where I should buy them.
  • Answers

    5 Answers found.
  • Preservation of food items is a very important aspect for its long self life.

    In fact if it is required only for 7 - 8 days, then we can use more oil while cooking the methi thepla. Oil will act as a preservative and also keep it soft for eating later.

    For longer duration the chemical food preservatives are commonly used for preservation of items like methi thepla. They appear to be the best and the most effective for a longer shelf life. There are different types of chemical food preservatives. Some of them are -
    1. Benzoates (like sodium benzoate, benzoic acid)
    2. Nitrites (like sodium nitrite)
    3. Sulphites (like sulphur dioxide)
    4. Sorbates (like sodium sorbate, potassium sorbate)

    The chemical preservatives are easily available in the market. They have a distinctive E number also.

    What I suggest is you can go for either of the following -
    E200 – E203: Sorbic acid / Sodium sorbate.
    E210 – E213: Benzoic acid / Sodium benzoate.

    Knowledge is power.

  • Food preservatives can be classified into two main groups. They are antioxidants and antimicrobials. Antioxidants delay or prevent the deterioration of foods by oxidation. Antimicrobial agents inhibit the growth of microorganisms which are spoilage and pathogenic in food. Some important antioxidants are
    1. Ascorbic acid which is an oxygen scavenger
    2. Butylated hydroxyanisole. It is a free radical scavenger
    3. Butylated hydroxytoluene. It is a free radical scavenger
    4, Citric acid enzyme. It is an inhibitor/metal chelator
    5. Tertiary butyl hydroquinone. It is a free radical scavenger
    Some important antimicrobials are
    1. Acetic acid It disrupts cell membrane function.
    2. Benzoic acid It disrupts cell membrane function/
    3. Nitrates, nitrites. They inhibit enzymes/disrupts cell membrane function
    4. Propionic acid. It disrupts cell membrane function
    5.Sorbic acid. It disrupts cell membrane function/inhibits enzymes/inhibits bacterial spore germination
    6.Sulfites and sulfur dioxide. They inhibit enzymes/forms addition compounds

    If you pack the food in Vacuum bags the longevity will increase. You can try Ascorbic acid or Propionic aid for preserving the food for a long time.

    always confident

  • Normally the quantity of Sodium Benzoate is limited to about 0.1 to 0.2% maximum for mixing in fruit juice or flour or other bakery items of 1 kg/ 1 ltr quantity.

    It means in 1 kg material one can go up to 1 to 2 gram of Sodium Benzoate.

    Now we have to check with the latest Govt regulations that is the legal prescribed limit so that we should be within that range. You can check it on food regulatory sites. It will be very near to above limit.

    With experience you can reduce the ratio to even 0.005% ( about half a gram per kg of material) also and see the results of self life of the Methi Thepla. That will be ideal thing to experiment and then form up the ratio.

    Knowledge is power.

  • Food preservative is a chemical substance that is added to food products from preventing decomposition. It is classified into two categories:- chemical and physical.
    Some of the chemical preservation are as:-
    •Sorbates which includes potassium sorbate, calcium sorbate and sodium sorbate.
    •Sulfites - there are different types of sulfite such as sodium sulfite, sodium bisulfite, sodium metabisulfite, potassium bisulfite.
    Here are some physical preservative are as:-
    •Vitamin E, (tocopherol)
    •Vitamin C (ascorbic acid)
    •Butylated hydroxyanisole (BHA) – It is used in in the preservation of butter,meats, etc.
    •Butylated hydroxytoluene (BHT) –
    •Disodium ethylenediaminetetraacetic acid (EDTA) – It is used for food processing
    •Citric acid – It is found in citrus fruits.
    Mostly chemical food preservatives are used for the preservation of items like methi thepla. If you apply then your food product life will increase. It is considered the best substance for food presevation. You can get easily it in the shop.

  • Food preservatives are added to enhance the life of the food products and addition of such chemicals does not alter the taste of the food till the duration of its expiry date appearing on the external surface of the packets.
    The following are the popular preservatives being used for the preservation of food items -
    1) Benzoic Acid - It would definitely give an enhanced life of the product but its side effects may be dangerous if used such products for a prolonged time. It may prove to cancerous and it may even affect our nervous system.
    2) Acetic Acid - This acid arrests the decomposition of the product helping to improve shell life of the product. The major side effect of this chemical is to weaken our cell membrane system if the composition exceeds the permitted limit.
    3) Sulphites and Sulphur Compounds - Excess addition of this chemical may affect our liver and kidney functions.
    4) Ascorbic Acid - It can prolong the life of the food product but excess usage of the same can affect of nervous system.
    5) Citric Acid - it contains an antioxidant available in the lemon and can arrest the growth of the microorganism thus improving the life of the product.
    The best way is to avoid the chemicals for the preservation of Methi Thepala. If oil in the excess quantity is used, it will take act like preservatives enhancing the life of the product.

  • Sign In to post your comments