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Food Allergens

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Food allergens
Food allergens
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Food Allergens

  1. 1. 1
  2. 2. RANA KINZAAKHTAR 2018-GCWUF-1628 81 E-A 2
  3. 3. FOOD ALLERGENS 3
  4. 4. CONTENTS  DEFINITION  MAJOR FOOD ALLERGENS  FOOD ALLERGEN ANALYSIS  EFFECTS OF ALLERGENS  SYMPTOMS  HOW TO PROVIDE ALLERGEN INFORMATION  DIAGNOSIS FOR FOOD ALLERGENS  MANAGEMENT AND TREATMENT  REFERENCES 4
  5. 5. Allergenic Substance ALLERGEN  Any substance that cause allergic reactions  Type of antigen  Cause abnormally vigorous immune system response 5
  6. 6. MAJOR FOOD ALLERGENS  Gluten  Eggs  Fish  Peanut  Milk  Crustaceans  Sesame Seeds  Mustard seeds  Celery  Lupin  Soybean 6
  7. 7. GLUTEN  Gluten is a protein  Found in wheat, rye and barley  Trigger allergy, inflammation, digestive issues and intestinal damage 7 Gluten Free Flour
  8. 8. Eggs EGGS  Common allergens- Ovalbumin and Ovocumoid  Make up to 65% composition of egg white  Found in cakes, mayonnaise, pasta, sauces, bakery products 8
  9. 9. Fish Products FISH  Major fish allergen- Parvalbumins  Common trigger of severe allergic reactions  Found in fish sauces, pizzas, salad dressings etc. 9
  10. 10. Peanut Products PEANUTS  Allergens- Glycoprotein, Legumin and Conglutin  Found in biscuits, cakes, desserts, groundnut oil and peanut flour 10
  11. 11. Milk Products MILK  Major allergens- Betalactoglobulin(BLG) and Casein  BLG- most abundant whey protein  Found in butter, cheese, cream, milk powder and yogurt 11
  12. 12. Crustaceans- Lobster, Prawns, Crabs CRUSTEACEANS  Major allergen- Tropomyosin  Muscle cell protein  Handling and consumption can induce allergenic reactions 12
  13. 13. Sesame Seeds SEASAME SEEDS  Major allergen- Oleosins  Rich in methionine  Found in breads, burgers and sesame oils 13
  14. 14. Mustard MUSTARD  Major allergen- Sinapsis Alba 1(Sin a 1)  Found in bread, curries, meat products, sauces and soups  Mustard plant, mustard oil, mustard powder can trigger allergic reactions 14
  15. 15. Celery CELERY  Major allergen- Apium Graveolens (Api G)  Found in salads, meat products, soups 15
  16. 16. Lupin Seeds LUPIN  Major lupin allergen – Lupan 1, Beta- conglutin  Cause allergic reactions  Use in chocolates, pastries and pasta 16
  17. 17. Soy Products SOYBEAN  Major allergen- Glycinin, Beta- conglycinin  They both are globulins  Found in ice creams, meat products, sauces, soy flour 17
  18. 18. FOOD ALLERGEN ANALYSIS ‘‘Testing of a material or surface to identify presence of food allergens’’ It is useful:  For allergen management in food processing  Establish allergen status of ingredients  Monitor effect of allergens 18
  19. 19. EFFECTS OF ALLERGENS Allergens effects:  Brain  Lungs  Gut  Skin  Eyes  Mouth  Heart Body Parts Effected By Allergens 19
  20. 20. Symptoms o Headache o Fever o Shortness of breath o Nausea o Vomiting o Rashes and Eczema o Swelling of Mouth o Heart Palpitation o Watery eyes 20
  21. 21. HOW TO PROVIDE ALLERGEN INFORMATION:  Training of staff  Write allergen information on menu card  Effective communication 21 Staff Training Customer Guidance
  22. 22. Allergen Info Chart 22 Menu Card
  23. 23. DIAGNOSIS FOR FOOD ALLERGENS Skin Prick Tests Oral Food Challenge Blood Tests Food Elimination Diet 23
  24. 24. 24 SKIN PRICK TEST  In this test : • Food allergens solution are placed on forearm • Solution is placed by scratching the skin • Results will obtain after 30 minutes • Positive result is confirmed by a wheal Skin Prick Test
  25. 25. 25 BLOOD TEST In this test:  Blood sample of a person is taken  Blood Sample is then sent to laboratory  In lab blood sample is subjected to battery of tests  To measure antibodies developed in response to specific allergens
  26. 26. 26 CONT…  Also known as Radioallergosorbent Test Blood Samples
  27. 27. OFC 27 Oral Food Challenge In this test:  Food is eaten slowly in increasing amount  Suspected foods are added or eliminated from diet  If there is no reaction then this food may include in diet
  28. 28. Eliminated Food 28 Food Elimination Diet  Temporary elimination of reactive foods from diet  Aids in diagnosis of food allergen  Test takes 2-4 weeks  During this period individuals are advised to avoid suspected food
  29. 29. Treatment: Two main types of medication-to relieve the symptoms 1. Antihistamines (for mild allergic reactions) 2. Andrenaline (for severe allergic reactions) Management:  Always read labels  Take care when cooking  Avoid foods that cause allergic reactions  Always carry your medication MANAGEMENT AND TREATMENT 29
  30. 30. REFERENCE  https://www.researchgate.net/publication/225 071089_Food_Allergens  https://allergenbureau.net/food- allergens/food-allergen-analysis/  Boye, J.I. , A.O. Danquah and X. Zhao. 2012. Food Allergen, 2nd. John Willey And Sons. 799-808pp  https://www.health.harvard.edu/healthbeat/6- tips-for-managing-food-allergies 30
  31. 31. 31

Notas do Editor

  • Antigen-Any substance that cause the body to make an immune response or to produce antibodies against it.
  • Bread, sauces, pizza, pasta and baked goods contain gluten
  • Shrimp/prawns
    Found in shrimp paste used in Thai curries or salads

  • Mithionine cause brain damage
  • Wheal- raised white bump encircled by itchy red skin

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