Showing all foods in which the polyphenol Protocatechuic acid is found Food Composition
| mean content | min | max | SD | n | N | number of references | ||
| Phenolic acids - Hydroxybenzoic acids - Protocatechuic acid | ||||||||
|---|---|---|---|---|---|---|---|---|
| Alcoholic beverages | ||||||||
| Beers | Beer [Alcohol free] |  0.27
  mg/100 ml | 0.00 | 0.51 | 0.19 | 9 | 9 | 1 | 
| Beer [Ale] |  0.06
  mg/100 ml | 0.02 | 0.10 | 0.04 | 3 | 3 | 1 | |
| Beer [Dark] |  0.04
  mg/100 ml | 0.04 | 0.04 | 0.00 | 1 | 1 | 1 | |
| Beer [Regular] |  0.05
  mg/100 ml | 0.00 | 0.08 | 0.02 | 22 | 44 | 6 | |
| Liquors - Nut liquors | Walnut, liquor |  0.52
  mg/100 ml | 0.36 | 0.74 | 0.17 | 4 | 4 | 1 | 
| Wines - Fortified Wines | Sherry |  0.56
  mg/100 ml | 0.56 | 0.56 | 0.00 | 1 | 1 | 1 | 
| Wines - Grape wines | Wine [Red] |  0.17
  mg/100 ml | 0.00 | 0.96 | 0.22 | 33 | 436 | 10 | 
| Wine [Rosé] |  0.26
  mg/100 ml | 0.24 | 0.26 | 0.01 | 2 | 5 | 2 | |
| Wine [White] |  0.33
  mg/100 ml | 0.01 | 1.30 | 0.40 | 9 | 58 | 6 | |
| Wines - Sparkling wines | Champagne |  0.03
  mg/100 ml | 0.01 | 0.05 | 0.02 | 4 | 4 | 1 | 
| Cereals and cereal products | ||||||||
| Cereals | Maize, refined flour |  0.09
  mg/100 g FW | 0.09 | 0.09 | 0.00 | 1 | 1 | 1 | 
| Oat, refined flour |  0.04
  mg/100 g FW | 0.04 | 0.04 | 0.00 | 1 | 1 | 1 | |
| Sorghum, whole grain |  2.55
  mg/100 g FW | 0.70 | 7.93 | 2.16 | 16 | 16 | 1 | |
| Fruits and fruit products | ||||||||
| Dried fruits - Dried berries | Grape, raisin |  0.32
  mg/100 g FW | 0.00 | 0.68 | 0.34 | 3 | 3 | 1 | 
| Dried fruits - Dried other fruits | Date, dried |  4.94
  mg/100 g FW | 0.00 | 8.34 | 4.38 | 3 | 3 | 1 | 
| Fruits - Citrus | Grapefruit |  1.00e-02
  mg/100 g FW | 0.01 | 0.01 | 0.00 | 1 | 1 | 1 | 
| Fruits - Other fruits | Date, fresh |  2.27
  mg/100 g FW | 0.00 | 4.49 | 2.25 | 3 | 3 | 1 | 
| Non-alcoholic beverages | ||||||||
| Fruit juices - Berry juices | Grape [Green], pure juice |  0.06
  mg/100 ml | 0.06 | 0.06 | 0.00 | 1 | 18 | 1 | 
| Sea-buckthornberry, pure juice |  0.25
  mg/100 ml | 0.21 | 0.29 | 0.06 | 2 | 2 | 1 | |
| Fruit juices - Pome juices | Apple [Cider], juice from concentrate |  0.07
  mg/100 ml | 8.00e-03 | 0.10 | 0.04 | 6 | 6 | 1 | 
| Apple [Cider], pure juice |  0.03
  mg/100 ml | 0.00 | 0.07 | 0.03 | 8 | 8 | 2 | |
| Apple [Dessert], pure juice |  0.76
  mg/100 ml | 0.00 | 1.64 | 0.89 | 4 | 4 | 3 | |
| Fruit juices - Tropical fruit juices | Kiwi, juice from concentrate |  0.02
  mg/100 ml | 0.02 | 0.02 | 0.00 | 1 | 1 | 1 | 
| Kiwi, pure juice |  0.02
  mg/100 ml | 0.02 | 0.02 | 0.00 | 3 | 3 | 1 | |
| Pomegranate, pure juice |  0.08
  mg/100 ml | 0.01 | 0.20 | 0.06 | 13 | 13 | 1 | |
| Oils | ||||||||
| Oils - Fruit vegetable oils | Olive, oil, virgin |  0.15
  mg/100 g FW | 0.08 | 0.24 | 0.06 | 10 | 10 | 1 | 
| Seasonings | ||||||||
| Other seasonings | Vinegar |  0.81
  mg/100 ml | 0.00 | 1.62 | 0.55 | 21 | 95 | 2 | 
| Spices | Cardamom |  1.00e-02
  mg/100 g FW | 0.01 | 0.01 | 0.00 | 1 | 1 | 1 | 
| Ceylan cinnamon |  1.16
  mg/100 g FW | 0.00 | 2.33 | 1.65 | 2 | 2 | 2 | |
| Cloves |  0.52
  mg/100 g FW | 0.00 | 1.05 | 0.74 | 2 | 2 | 2 | |
| Nutmeg |  0.01
  mg/100 g FW | 0.00 | 0.03 | 0.02 | 2 | 2 | 2 | |
| Star anise |  32.20
  mg/100 g FW | 32.20 | 32.20 | 0.00 | 1 | 1 | 1 | |
| Seeds | ||||||||
| Nuts | Almond |  0.26
  mg/100 g FW | 0.13 | 0.44 | 0.10 | 8 | 8 | 1 | 
| Pulses - Lentils | Lentils, dehulled, raw |  0.07
  mg/100 g FW | 0.07 | 0.08 | 5.77e-03 | 4 | 4 | 1 | 
| Lentils, whole, raw |  0.14
  mg/100 g FW | 0.14 | 0.14 | 0.00 | 1 | 1 | 1 | |
| Vegetables | ||||||||
| Cabbages | Cauliflower, raw |  0.44
  mg/100 g FW | 0.43 | 0.45 | 0.01 | 2 | 2 | 1 | 
| Fruit vegetables | Eggplant [Purple], whole, raw |  0.58
  mg/100 g FW | 0.36 | 0.97 | 0.34 | 3 | 3 | 1 | 
| Olive [Black], raw |  6.00
  mg/100 g FW | 0.00 | 21.00 | 7.75 | 6 | 6 | 2 | |
| Olive [Green], raw |  0.67
  mg/100 g FW | 0.00 | 2.00 | 1.15 | 3 | 3 | 2 | |
| Leaf vegetables | Chicory [Green], raw |  21.79
  mg/100 g FW | 13.39 | 30.18 | 11.87 | 2 | 2 | 1 | 
| Chicory [Red], raw |  16.78
  mg/100 g FW | 11.24 | 25.71 | 5.29 | 6 | 6 | 1 | |
| Onion-family vegetables | Onion [Red], raw |  2.00
  mg/100 g FW | 2.00 | 2.00 | 0.00 | 1 | 1 | 1 | 
| Onion [Yellow], raw |  1.00
  mg/100 g FW | 1.00 | 1.00 | 0.00 | 1 | 1 | 1 | |
| Shallot, raw |  1.00
  mg/100 g FW | 1.00 | 1.00 | 0.00 | 1 | 1 | 1 | |
| mean content | min | max | SD | n | N | number of references | ||
| Phenolic acids - Hydroxybenzoic acids - Protocatechuic acid | ||||||||
|---|---|---|---|---|---|---|---|---|
| Alcoholic beverages | ||||||||
| Wines - Grape wines | Wine [Rosé] |  0.34
  mg/100 ml | 0.34 | 0.34 | 0.00 | 1 | 4 | 1 | 
| Cereals and cereal products | ||||||||
| Cereal products | Bread, rye, whole grain flour |  1.00
  mg/100 g FW | 1.00 | 1.00 | 0.00 | 1 | 4 | 1 | 
| Cereals | Maize, refined flour |  0.25
  mg/100 g FW | 0.25 | 0.25 | 0.00 | 1 | 1 | 1 | 
| Oat, refined flour |  0.04
  mg/100 g FW | 0.04 | 0.04 | 0.00 | 1 | 1 | 1 | |
| Coffee and cocoa | ||||||||
| Cocoa - Cocoa powders | Cocoa, powder |  40.00
  mg/100 g FW | 40.00 | 40.00 | 0.00 | 1 | 1 | 1 | 
| Fruits and fruit products | ||||||||
| Dried fruits - Dried other fruits | Date, dried |  4.26
  mg/100 g FW | 0.00 | 8.34 | 4.17 | 3 | 3 | 1 | 
| Fruits - Berries | Red raspberry, raw |  1.30
  mg/100 g FW | 1.30 | 1.30 | 0.00 | 1 | 8 | 1 | 
| Strawberry, raw |  0.40
  mg/100 g FW | 0.40 | 0.40 | 0.00 | 1 | 4 | 1 | |
| Fruits - Citrus | Grapefruit |  0.04
  mg/100 g FW | 0.04 | 0.04 | 0.00 | 1 | 1 | 1 | 
| Fruits - Drupes | Plum, fresh |  0.07
  mg/100 g FW | 0.06 | 0.08 | 9.57e-03 | 4 | 12 | 1 | 
| Fruits - Other fruits | Date, fresh |  2.27
  mg/100 g FW | 0.00 | 4.49 | 2.25 | 3 | 3 | 1 | 
| Fruits - Pomes | Apple [Dessert], whole, raw |  0.49
  mg/100 g FW | 0.49 | 0.49 | 0.00 | 1 | 5 | 1 | 
| Seasonings | ||||||||
| Herbs | Coriander, fresh |  2.20
  mg/100 g FW | 2.20 | 2.20 | 0.00 | 1 | 1 | 1 | 
| Fennel, fresh leaves |  0.11
  mg/100 g FW | 0.11 | 0.11 | 0.00 | 1 | 1 | 1 | |
| Fenugreek, fresh |  0.78
  mg/100 g FW | 0.78 | 0.78 | 0.00 | 1 | 1 | 1 | |
| Wild turnip tops, fresh |  0.60
  mg/100 g FW | 0.60 | 0.60 | 0.00 | 1 | 1 | 1 | |
| Spices | Fenugreek seed |  7.95
  mg/100 g FW | 7.95 | 7.95 | 0.00 | 1 | 1 | 1 | 
| Vegetables | ||||||||
| Fruit vegetables | Eggplant [Purple], whole, raw |  1.15
  mg/100 g FW | 0.52 | 2.23 | 0.94 | 3 | 3 | 1 | 
| Olive [Black], raw |  58.50
  mg/100 g FW | 43.00 | 74.00 | 21.92 | 2 | 2 | 1 | |
| Leaf vegetables | Swiss chard leaves [Red], raw |  5.40
  mg/100 g FW | 5.40 | 5.40 | 0.00 | 1 | 1 | 1 | 
| Swiss chard leaves [White], raw |  4.50
  mg/100 g FW | 4.50 | 4.50 | 0.00 | 1 | 1 | 1 | |
| Root vegetables | Carrot, raw |  0.13
  mg/100 g FW | 0.13 | 0.13 | 0.00 | 1 | 4 | 1 | 
| Stalk vegetables | Swiss chard stems [Red], raw |  0.30
  mg/100 g FW | 0.30 | 0.30 | 0.00 | 1 | 1 | 1 | 
| Swiss chard stems [White], raw |  1.70
  mg/100 g FW | 1.70 | 1.70 | 0.00 | 1 | 1 | 1 | |