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Table 1 Selenium content in various foods (μg/g)

From: Quantitative determination of selenium in the most common food items sold in Egypt

Beverages Mean ± S.D Nuts Mean ± S.D Sweetened products Mean ± S.D
Sample (μg/g) Sample (μg/g) Sample (μg/g)
Cola drink 0.002 ± 0.001 0.69 ± 1.44 Cashew 0.028 ± 0.013 2.29a ± 1.94 Gelatin 0.001 ± 0.001 1.56a ± 1.92
Instant coffee 0.005 ± 0.001   Seed sunflower 0.51 ± 0.01   Tea biscuits 0.26 ± 0.18  
Tea 0.0064 ± 0.001   Watermelon seeds 0.96 ± 0.21   Jam 0.35 ± 0.22  
Mint 0.014 ± 0.005   Peanuts 2.14 ± 0.51   Galaxy 0.62 ± 0.47  
Carob 0.018 ± 0.010   Pistachio 2.24 ± 0.68   Raw chocolate 0.94 ± 0.17  
Ginger 0.028 ± 0.013   Almonds 3.25 ± 0.29   Chocolate biscuits 1.61 ± 0.59  
Roselle 0.35 ± 0.12   Hazelnut 3.56 ± 0.33   Sweet tahini 2.36 ± 0.83  
Caraway 2.20 ± 0.26   Walnuts 4.22 ± 0.10   Black honey 3.10 ± 0.15  
Fenugreek 4.30 ± 0.70   Sesame seeds 5.89 ± 0.84   Bee honey 6.20 ± 0.62  
Carbohydrate-rich food Mean ± S.D Protein-rich foods Mean ± S.D Fat Mean ± S.D
Sample (μg/g) Sample (μg/g) Sample (μg/g)
Toast 0.014 ± 0.011 0.36b ± 0.64 Bean 0.26 ± 0.047 3.07ad ± 2.17 Industrial butter 0.0033 ± 0.002 1.74a ± 1.86
Shami bread 0.023 ± 0.021   Lentils 0.42 ± 0.326   Morta 0.026 ± 0.038  
Sweet potato 0.028 ± 0.003   Eggs 1.42 ± 0.556   Industrial margarine 0.041 ± 0.036  
Vino bread 0.045 ± 0.017   Poultry 2.2 ± 0.588   Animal fat 0.12 ± 0.10  
Macaroni with whole grain 0.11 ± 0.098   Mackerel 2.4 ± 0.448   Coconut oil 0.26 ± 0.12  
Rice 0.15 ± 0.03   Mullet 3.9 ± 0.826   Sunflower oil 1.8 ± 0.04  
Pasta 0.16 ± 0.04   Tilapia 3.30 ± 0.394   Corn oil 3.2 ± 0.61  
Potatoes 0.48 ± 0.41   Ducks 4.2 ± 0.471   Olive oil 3.4 ± 0.69  
Local bread 0.48 ± 0.41   Crab 5.8 ± 0.850   Local margarine 4.1 ± 0.85  
Corn 2.1 ± 0.46   Shrimp 6.8 ± 0.035   Local butter 4.4 ± 0.14  
Vegetables and fruits Mean ± S.D Meat and its products Mean ± S.D Milk and dairy products Mean ± S.D
Sample (μg/g) Sample (μg/g) Sample (μg/g)
Beet 0.024 ± 0.028 1.06 ± 0.68 Luncheon meat 0.001 ± 0.001 1.03e ± 1.22 Soft cheese 0.0036 ± 0.002 0.82e ± 0.93
Cucumber 0.032 ± 0.019   Kufta 0.0022 ± 0.002   Skimmed milk 0.023 ± 0.015  
Apple 0.84 ± 0.021   Sausage 0.0084 ± 0.013   Cheese triangular 0.025 ± 0.022  
Garlic 0.98 ± 0.357   Sussis (sausage) 0.023 ± 0.020   Free-fat yogurt 0.096 ± 0.006  
Lemon 1.1 ± 0.80   Bastrama 0.52 ± 0.21   Semi-hard cheese 0.47 ± 0.08  
Tomatoes 1.1 ± 0.40   Veal meat 0.64 ± 0.56   Rumi cheese 0.68 ± 0.18  
Onions 1.3 ± 0.24   Cow’s kidney 1.48 ± 0.70   Raw milk 0.94 ± 0.05  
Orange 1.3 ± 0.32   Beef 1.8 ± 0.07   Full-cream milk 1.25 ± 0.13  
Carrots 1.6 ± 0.28   Sheep meat 2.2 ± 0.38   Full-cream yogurt 2.12 ± 0.36  
Banana 2.3 ± 0.20   Cow’s liver 3.62 ± 0.71   Local yogurt 2.63 ± 0.31  
  1. aSignificant with drinks group
  2. bSignificant with nuts group
  3. cSignificant with sweetened group
  4. dSignificant with carbohydrate group
  5. eSignificant with protein-rich foods group