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At Healthfully, we strive to deliver objective content that is accurate and up-to-date. Our team periodically reviews articles in order to ensure content quality. The sources cited below consist of evidence from peer-reviewed journals, prominent medical organizations, academic associations, and government data.
- National Center for Biotechnology Information: Citric Acid
- National Institutes of Health: Quantitative Assessment of Citric Acid in Lemon Juice, Lime Juice, and Commercially-Available Fruit Juice Products
- National Institutes of Health: Quantitative Assessment of Citric Acid in Lemon Juice, Lime Juice, and Commercially-Available Fruit Juice Products
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Citric Acid in Lemons
Lemons are a healthy citrus fruit full of vitamins, minerals, citric acid and antioxidants. Because of their sour taste and low sugar content, lemons are usually added to drinks or foods, especially baked desserts. Lemon juice is also commonly used in cooking to prevent discoloring of sliced fruits such as apples and bananas.
Plant Description
True lemons are pale yellow in color and grow to about 2.5 to 4.5 inches in length. The tree can be from 10 ft. to 20 ft. high with sharp thorns on the branches, not commonly found on commercial hybrids. Lemon trees require warm climates to grow, as temperatures 29 degrees Fahrenheit or below can kill all flowers and fruit, and possibly damage the tree. True lemons are believed to originate in northwestern India, but are grown around the world, wherever climate and soil conditions are adequate.
- True lemons are pale yellow in color and grow to about 2.5 to 4.5 inches in length.
- Lemon trees require warm climates to grow, as temperatures 29 degrees Fahrenheit or below can kill all flowers and fruit, and possibly damage the tree.
Varieties
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There are several varieties of lemons cultivated. Many are crossbreeds and can vary in size and color. Armstrong is naturally seedless and was discovered in California. Berna is a Spanish lemon that ripens in winter and has very few seeds. There are several types from Italy and include the Genoa, Femminello Ovale, Bearss and Santa Teresa. One of the more popular lemons is the Meyer, which is believed to be a cross between a lemon and mandarin orange.
- There are several varieties of lemons cultivated.
- Berna is a Spanish lemon that ripens in winter and has very few seeds.
Citric Acid in Lemons
Citric acid is a compound considered weak and is found in fruits, such as lemons, oranges and grapefruits. The citric acid found in lemons and limes is much more plentiful than that of grapefruits and oranges.
Nutritional Data on Lemon Juice
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Lemons are known for their high citric acid content, but they also provide a small amount of several vitamins and minerals. A 1-cup serving of raw lemon juice provides 61 calories and zero fat 4.
Health Benefits
Lemons are high in vitamin C, which provides antioxidants. Antioxidants are valuable to the body as they will attack and kill free radicals, which are known to cause cancer and damage blood vessels. Lemons also contain limonoids, which are able to prevent certain cancers, such as:
- skin
- mouth
- breast
- colon
Related Articles
References
- Purdue University: Lemon
- National Center for Biotechnology Information: Citric Acid
- National Institutes of Health: Quantitative Assessment of Citric Acid in Lemon Juice, Lime Juice, and Commercially-Available Fruit Juice Products
- Nutrition Data: Lemon Juice, Raw
- World's Healthiest Foods: Lemons/Limes
Writer Bio
Catherine Smith has been writing professionally since 2000. She runs a client-based wellness office in Bastrop, Texas. She specializes in pain and stress management using herbs and alternative medicine She received her doctorate in natural health with a concentration in herbal studies from Clayton College of Natural Health.