ALLERGY RESOURCES

COMPREHENSIVE ALLERGY RESOURCES FOR EVERYONE - THE TOP 14 ALLERGENS AND BEYOND

COMPREHENSIVE ALLERGY RESOURCES FOR EVERYONE - THE TOP 14 ALLERGENS AND BEYOND
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TURNIP ALLERGY


Key Allergens

Turnips are in the Brassicaceae family of plants. Other plants in this food family includes rapeseed (canola), cabbage, papaya and mustard.

Turnips are usually small and white, larger ones which turn yellow are called swedes in the UK and rutabaga in the US. There are 3 food allergens associated with turnip allergy.

Bra r 1 is a 2S albumin protein. These are seed storage proteins most commonly found in nuts and seeds.

Bra r 2 is prohevein protein which is used in the plant for defence.

Bra r 3 is a polcalcin protein. These are panallergens, but are usually associated with airway allergies (plant pollens). In turnips this allergen is unique as it has been identified as a food allergen.

Associated Syndromes

Turnips contain prohevein which is similar in shape to those of latex plants, which can cause those suffering from Latex Food Syndrome to have allergic reactions to turnips.

Cross Reactivity

Other food containing 2S albumin seed storage proteins are cashews, peanuts, brazil nuts, mustard seed, rapeseed, pecans, chickpeas, hazelnuts, pistachio, buckwheat, soya, sunflower seeds, walnuts, kiwi, castor beans and sesame seeds.

Those with a sensitivity to hevein may have linked allergies to foods which contain high levels of chitinase, like banana, avocado, chestnuts, corn (maize), kiwi, papaya, pomegranate and tomatoes.

Other plants which contain polcalcin proteins as airway allergens are alder, ragweed, wormwood, birch, olive and lilac.



Resources

Websites

Science Direct - Brassica Rapa

Allergy information for: Turnip (Brassica rapa)


Articles and Journals

Sensitization and allergy to turnip rape: a comparison between the Finnish and French children with atopic dermatitis, 2009

2S Albumin Storage Proteins: What Makes them Food Allergens?, 2008

Turnip and zucchini: New vegetables responsible for cross reactivity between latex and plant-derived foods, 2007

Napins, 2S albumins, are major allergens in oilseed rape and turnip rape, 2006

Allergy to turnip greens, 2004

Increased allergen production in turnip (Brassica rapa) by treatments activating defense mechanisms, 1999



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