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Food Additives
Science Ace Secondary 1 2012 term 2.

Rio Tang (22) class 1i3
What are the most
common type of
food additives?
Caffeine
Caffeine occurs naturally in some beverages and is added to some soft drinks. It is not added to any food. Caffeine, a
                          drug, is a stimulant to the nervous system and is mildly addictive.
Caramel
Caramel, produced by cooking sugar, is one of the most common additives. In one form, manufactured with ammonia
                     as a chemical agent, tests have shown caramel may cause health problems.
Lactic Acid
Lactic acid is used to boost or adjust acid in cheese and olives and to add tartness to ice creams and beverages.
             Nonacidic lactates prevent discoloration of fruits and vegetables. It is considered safe.
Monosodium

                 glutamate
Monosodium glutamate, a flavor enhancer, may cause temporary allergic discomfort to some adults and has been
      banned in baby food. It should be avoided by pregnant women and those on a low sodium diet.
EDTA
EDTA (ethylenediamine tetraacetic acid) is considered a safe additive and is used to trap metal impurities that cause
              clouding in beverages; in other foods, it is used to retard staling and discoloration.
Niacin
Niacin, or vitamin B-3, is added to many processed foods, particularly cereals. It is safe, and is
                    often cited by food companies in nutritional claims.
Yellow Dye

                    No.5
Yellow dye No. 5, widely used in processed foods, is known to cause
                 allergic reactions in some people.
Sugar
Sugar, from the standpoint of consumption, tops the list of food additives by a wide margin. Some breakfast cereals,
   for example, get nearly half their calories from added sugar and it is the main ingredient in many soft drinks.
Sugar part 2
Refined sugar, from which the nutrients have been removed, makes up 10 to 20 percent of the American diet. Sugar is linked to dental cavities. - Sulfites, often found as sodium bisulfite, are commonly used to retain
                     color and prevent bacterial growth in foods and beverages. Some people are allergic to sulfiting agents, and it is the only additive known to have caused deaths in humans.
Polysorbates
Polysorbates are emulsifiers used to preserve texture and freshness in such things as bread, rolls and doughnuts. They are generally considered safe, but the FDA placed
                              limits on the amount of contamination with dioxane after this known carcinogen was found in polysorbates.
Sodium
Sodium, listed on food labels as salt (sodium chloride) and other sodium compounds, is widely
            used in processed and fast foods and is a factor in high blood pressure.
Sodium Nitrate
Sodium nitrite is used to treat billions of pounds of meat annually to preserve color and prevent spoilage and bacterial growth. Some research
                  shows bacon containing nitrites, if cooked at high temperatures, can produce cancer- causing nitrosamines.
Why do foods include so
   many additives?
Convenience
 Buying pre-made foods is far easier and less time-
   consuming than making your own meals from
  scratch. Making your own whipped cream takes
time, patience, skill, and knowledge, and the result
           of the labor will spoil quickly.
Emulsifying
Additives allow two substances that are
 different in density, to stay in a mixed
state, or in scientific terms, emulsified.
  One example is whip cream, where
polysorbate 60 is a common emulsifier
   to keep the oil and water in whip
         cream from separating .
Taste and “mouthfeel”
 Additives are normally added, to give a food item
 it’s taste. For example, sugar is added to give a
 food its sweetness. This is one of the benefits of
 additives, because without the additives, the food
 will taste bland. Additives are also added so as to
 enhance the wanted texture of a certain food. For
 example, if you want whipped cream to have a
 better “mouthfeel”, more Sodium caseinate is
 added to the food.
Should we be worried
about the health risks
of food preservatives?
YES
Although food preservatives
have many benefits such as:
•   Preventing the growth of bacteria, fungi and yeasts
•   Maintaining quality of foods
•   Maintaining palatability of foods after long periods of time
The dangers outnumber the
benefits by more than 3 times!
 Can trigger allergies such as skin rashes and asthma (e.g.
 Benzoates)

 Destroys most of nutrients in foods. (e.g. Bromates)

 Can give rise to nausea and diarrhea (e.g. Butylates)

 Can have diuretic, stimulant properties, triggering
 occasional heart defects (e.g. caffeine)

 Can cause toxic reactions + allergic response, affecting
 skin, gastrointestinal tract and heart. May cause tumors
 and bladder cancer. (e.g. saccharin)

 Some suspected to cause certain birth defects (e.g. Red
 Dye 40)
Can cause genetic changes and cancer (e.g. di-
glycerides)

Can cause vitamin B6 deficiencies (e.g. caramel)

Can cause high blood pressure, kidney failure, stroke
and heart attack. (e.g. Sodium Chloride)
4th point
    Find a common food.


Cake and brownies (mix)
Betty Crocker Super Moist
      Click to edit Master text styles
          Second level
             Third level
                Fourth level
                   Fifth level
Meijer moist select
                                   Sugar, Enriched Bleached Flour
Click to edit Master text styles
                                   (Bleached Flour, Niacin, Iron,
    Second level                   Thiamine Mononitrate,
       Third level                 Riboflavin, Folic Acid), Cocoa
                                   (Processed with Alkali), Partially
          Fourth level             Hydrogenated Vegetable
             Fifth level           Shortening (Contains Soybean
                                   oil).
Meijer moist                  Betty
                 select                    Crocker
                                         super moist


   Price               $1.35                      $1.90




   Taste               3.8/5
               (average after visiting
                                                  4.9/5
                                          (average after visiting
              serveral websites where    serveral websites where
                    people vote)               people vote)


Nutritional       Less additives         Much more additives

  value

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Foodadditives

  • 1. Food Additives Science Ace Secondary 1 2012 term 2. Rio Tang (22) class 1i3
  • 2. What are the most common type of food additives?
  • 3. Caffeine Caffeine occurs naturally in some beverages and is added to some soft drinks. It is not added to any food. Caffeine, a drug, is a stimulant to the nervous system and is mildly addictive.
  • 4. Caramel Caramel, produced by cooking sugar, is one of the most common additives. In one form, manufactured with ammonia as a chemical agent, tests have shown caramel may cause health problems.
  • 5. Lactic Acid Lactic acid is used to boost or adjust acid in cheese and olives and to add tartness to ice creams and beverages. Nonacidic lactates prevent discoloration of fruits and vegetables. It is considered safe.
  • 6. Monosodium glutamate Monosodium glutamate, a flavor enhancer, may cause temporary allergic discomfort to some adults and has been banned in baby food. It should be avoided by pregnant women and those on a low sodium diet.
  • 7. EDTA EDTA (ethylenediamine tetraacetic acid) is considered a safe additive and is used to trap metal impurities that cause clouding in beverages; in other foods, it is used to retard staling and discoloration.
  • 8. Niacin Niacin, or vitamin B-3, is added to many processed foods, particularly cereals. It is safe, and is often cited by food companies in nutritional claims.
  • 9. Yellow Dye No.5 Yellow dye No. 5, widely used in processed foods, is known to cause allergic reactions in some people.
  • 10. Sugar Sugar, from the standpoint of consumption, tops the list of food additives by a wide margin. Some breakfast cereals, for example, get nearly half their calories from added sugar and it is the main ingredient in many soft drinks.
  • 11. Sugar part 2 Refined sugar, from which the nutrients have been removed, makes up 10 to 20 percent of the American diet. Sugar is linked to dental cavities. - Sulfites, often found as sodium bisulfite, are commonly used to retain color and prevent bacterial growth in foods and beverages. Some people are allergic to sulfiting agents, and it is the only additive known to have caused deaths in humans.
  • 12. Polysorbates Polysorbates are emulsifiers used to preserve texture and freshness in such things as bread, rolls and doughnuts. They are generally considered safe, but the FDA placed limits on the amount of contamination with dioxane after this known carcinogen was found in polysorbates.
  • 13. Sodium Sodium, listed on food labels as salt (sodium chloride) and other sodium compounds, is widely used in processed and fast foods and is a factor in high blood pressure.
  • 14. Sodium Nitrate Sodium nitrite is used to treat billions of pounds of meat annually to preserve color and prevent spoilage and bacterial growth. Some research shows bacon containing nitrites, if cooked at high temperatures, can produce cancer- causing nitrosamines.
  • 15. Why do foods include so many additives?
  • 16. Convenience Buying pre-made foods is far easier and less time- consuming than making your own meals from scratch. Making your own whipped cream takes time, patience, skill, and knowledge, and the result of the labor will spoil quickly.
  • 17. Emulsifying Additives allow two substances that are different in density, to stay in a mixed state, or in scientific terms, emulsified. One example is whip cream, where polysorbate 60 is a common emulsifier to keep the oil and water in whip cream from separating .
  • 18. Taste and “mouthfeel” Additives are normally added, to give a food item it’s taste. For example, sugar is added to give a food its sweetness. This is one of the benefits of additives, because without the additives, the food will taste bland. Additives are also added so as to enhance the wanted texture of a certain food. For example, if you want whipped cream to have a better “mouthfeel”, more Sodium caseinate is added to the food.
  • 19. Should we be worried about the health risks of food preservatives?
  • 20. YES
  • 21. Although food preservatives have many benefits such as: • Preventing the growth of bacteria, fungi and yeasts • Maintaining quality of foods • Maintaining palatability of foods after long periods of time
  • 22. The dangers outnumber the benefits by more than 3 times! Can trigger allergies such as skin rashes and asthma (e.g. Benzoates) Destroys most of nutrients in foods. (e.g. Bromates) Can give rise to nausea and diarrhea (e.g. Butylates) Can have diuretic, stimulant properties, triggering occasional heart defects (e.g. caffeine) Can cause toxic reactions + allergic response, affecting skin, gastrointestinal tract and heart. May cause tumors and bladder cancer. (e.g. saccharin) Some suspected to cause certain birth defects (e.g. Red Dye 40)
  • 23. Can cause genetic changes and cancer (e.g. di- glycerides) Can cause vitamin B6 deficiencies (e.g. caramel) Can cause high blood pressure, kidney failure, stroke and heart attack. (e.g. Sodium Chloride)
  • 24. 4th point Find a common food. Cake and brownies (mix)
  • 25. Betty Crocker Super Moist Click to edit Master text styles Second level Third level Fourth level Fifth level
  • 26. Meijer moist select Sugar, Enriched Bleached Flour Click to edit Master text styles (Bleached Flour, Niacin, Iron, Second level Thiamine Mononitrate, Third level Riboflavin, Folic Acid), Cocoa (Processed with Alkali), Partially Fourth level Hydrogenated Vegetable Fifth level Shortening (Contains Soybean oil).
  • 27. Meijer moist Betty select Crocker super moist Price $1.35 $1.90 Taste 3.8/5 (average after visiting 4.9/5 (average after visiting serveral websites where serveral websites where people vote) people vote) Nutritional Less additives Much more additives value