Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Transcript of Untitled Prezi
Foods that contain Preservatives
There are an endless amount of foods that contain preservatives, most foods have them, and they are very important and sometimes may help prevent illnesses. Foods such as breads, soft drinks, cheese, margarine, wine, dried fruit, processed meats, fruit juice and raw prawns may contain preservatives. Even fresh fruits and vegetables are sometimes sprayed and irritated with a substance that makes them last longer and take longer to rot; these sprays can be harmful to some people so they need to be very cautious when buying fresh fruits and vegetables. There are preservatives found in foods such as cookies and other baked goods as well as in foods that are canned and also very sweet drinks such as concentrated cordials can contain preservatives.
The function of Preservatives
Preservatives are found in so many foods because they are added to make the specific food have a longer shelf life or have a longer amount of time before its starts to rot. Preservatives prevent spoilage of foods by moulds, yeast and bacteria, preservatives have are acidic and this makes the organisms unable to grow in the food. So preservatives are very important to have in some foods because it means that our food will last longer and we will prevent a high growth of unhealthy mould and bacteria in our food.
Because Preservatives are found in mostly all the foods we eat they do have a lot of advantages. First off, they allow food to have a longer shelf life which helps people save money, they do not have to buy new food every few days just because the food is quickly moulding. Another advantage is that that preservatives such as taurine helps maintain water and electrolyte balance in the blood, this preservative is found naturally in meats and fish. Preservatives also keep you safer from food poisoning which you get when you eat bad food that is either rotten or mouldy, the preservatives in food can prevent this from happening.
Do Preservatives affect anyone?
Although preservatives have many advantages, they can also be bad or some people. Sulphite is a preservative that is used to stop the browning and discoloration of food; it has recently been linked to asthma related sensitivity and in some cases allergies. The preservative Nitrite is usually found in meats that make hot dogs; it has been linked to some types of cancer. There are few more common preservatives that are also linked to diseases relating to asthma and also cancer. These preservatives are still used in foods but people which these illnesses need to be very careful when buying foods to always read the labels and ingredients in all the foods they buy.
This video shows some of the bad preservatives that may be found in the foods we eat
Analyse 4 Products
Analyse four products from your home pantry, carefully check the ingredient list and record the specific name of the additive used in each product and explain why these preservatives were used in these items.
Part 2 - Analysis
Edgell Super Sweet Canned Corn Kernels
Philadelphia Cream Cheese
Yoplait Forme No Fat Yoghurt
Cottee's Coola Lime Cordial
Preservative (200) Sorbic Acid
Preservative (200) Sorbic Acid
Part 3 - Research
food Intolerances and Allergies
Food allergy and food intolerance are both types of food sensitivity and both can make you feel very sick. If you have a food allergy this means your immune system reacts to a particular food and causes immediate symptoms, That may include itchiness, rash and swelling. Sometimes this reaction can trigger a life-threatening reaction which is known as anaphylaxis.
Food intolerance, does not involve the immune system. Instead food intolerance is actually an adverse reaction to a particular food. The symptoms can be quite unpleasant and in some cases severe but are generally not life-threatening.
If you have a food allergy or intolerance it is important to carefully read the labels on foods you are buying.
Food labeling rules in Australia state that the eight most common allergens that include crustaceans, eggs, fish, milk, peanuts, soybeans, tree nuts, sesame seeds and their products allergies, gluten and its products and sulphite preservatives must be stated on packaging or where the buyer can see them. it is very important that people with these allergies and intolerances read labels very carefully because allergies can sometimes be very dangerous.
If you are ever buying food and you are reading the label and you believe that the product has been incorrectly labeled you must cal your local food Authority. It is against the law to sell incorrectly labeled for to costumers.
Video: Food Labeling
Adelaide Allergy and Immunology Centre
96 Unley Road, Unley 5061
Phone: +61 8 8373 2422
Fax: +61 8 8373 6148
Nut and Wheat allergens
NSW Allergy Information
Other Clinics in S.A
Facts About Food Allergies
Thanks For Watching