The sour flavor experienced with some foods is due to citric acid. It can be found in many fruits and vegetables, especially citrus fruits such as lemons and oranges.
Citric acid is an organic, crystalline acid that exists in a variety of fruits and vegetables. It is colorless and is derived by fermentation of carbohydrates.
Citric acid can be found in beans, broccoli, carrots, potatoes, rhubarb and tomatoes. The acidity in foods can be measured in “pH” levels. The lower the pH level, the more acid is in the food. Tomatoes are high in citric acid and measure between 4.30 and 4.90 in pH level. Broccoli measures between 6.30 and 6.52 in pH level.
Food manufacturers add citric acid to jams, canned fruits and vegetables. Citric acid is also added to soft drinks for the sour taste.
Many environmentally friendly products use citric acid as their cleaning agent. Citric acid can also be used for odor control.
A person usually consumes about 500 mg citric acid per day. This is about the same as 2 ounces of orange juice. Citric acid is absorbed through the digestive tract and eliminated by the kidneys.
What Foods Provide Calcium D-Glucarate?
How to Make Teriyaki Sauce
How to Cook Vegetables With Progresso ...
How to Cook Shrimp in a Skillet
High-Alkaline, Low-Acid Foods
How to Get Rid of Skunk Smell With ...
Leaving Cooked Vegetables Unrefrigerated
Difference in Sugar Content of Sweet ...
Foods From Rainforest Plants
Food Sources of Phosphatidylcholine
How to Use Sea Salt for Canning
How Fast Does Cooked Spaghetti Squash ...
Can You Change Skin Tone with Food?
Difference Between Soap & Synthetic ...
Good Marinade for a Chicken & Steak ...
How to Make Sinigang
What Are the Benefits of Tea Tree Soap?
How Many Calories in Chopped Antipasto ...
Carbohydrates in Zucchini
Foods That Are Good for Arthritis Pain ...
Sabine Schmidt is a full-time writer based in Nashville, Tenn. She has been freelancing for more than 10 years. Her work has appeared on e-How, LIVESTRONG and "National Geographic." She is also a blogger for IMAX Niagara, Americhip and Trivet L.A.