Camphor

Camphor, which is also called alcanfo, is a type of organic compound that comes from the camphor tree (Cinnamomum camphora). Camphor is often used in the form of oil, which is extracted from the tree itself. Camphor, including the oil and larger parts of the tree, is often used in traditional medicines. Camphor oil, in a diluted form, has a number of common medicinal uses. Camphor oil is also used for food flavorings and in products such as insect repellant and soap. Today, people produce a synthetic version of camphor that is more widely used than camphor extracted from the plant. The camphor tree is used to create camphor oil and lumber in some parts of the world. The tree is considered an invasive species in the United States, as it has been planted in Florida and other regions, where it grows easily and overtakes the habitats of native trees.

Background

Camphor trees are evergreen trees that can grow as tall as 50 to 100 feet (15 to 30 meters). They are native to East Asia and grow in countries such as China and Japan. The trees keep their green, shiny, oval leaves year-round. The leaves grow alternately on the branches, which are green when they are young and turn red with age. In the spring, trees grow blossoms and small black fruit. They have thick, strong trunks and branches. These trees grow best in areas with full sun or a little shade. They can produce a large amount of fruit, which allows them to quickly become one of the most dominant plant species in a given area. They require moderate amounts of water. Camphor trees can be easily identified by breaking the bark or leaves, which release a strong scent somewhat similar to eucalyptus. Camphor oil is extracted from the wood of the tree through the process of distillation.

Overview

People have used camphor for thousands of years. Many parts of the camphor tree—including the roots, stems, and leaves—are still used in traditional medicine. People more commonly use the tree’s oil, which is extracted from the plant, for medicinal purposes. The oil of the plant is colorless, but it has a distinctive scent. It is not water soluble. It can have a cool feeling when it is applied to the skin, although it can also irritate skin when it is applied directly.

Camphor has antibacterial, antifungal, and anti-inflammatory properties. People often mix camphor oil with another oil, such as almond oil, and apply it to the skin. The oil should be diluted before applying it to the skin to avoid irritation or toxicity. Camphor oil is thought to relieve pain and itching on the skin. People use the oil topically to treat arthritis, hemorrhoids, toenail fungus, and cold sores. People also use the oil topically so they can inhale it as treatment for respiratory infections. Camphor is approved by the US Food and Drug Administration (FDA) in certain diluted concentrations to treat skin itching and irritation, cough, and pain.

Camphor should not be ingested or applied to broken skin, as people can easily overdose through either method of administration. Also, camphor can cause seizures and even death in some people when it is ingested. Although it is unsafe, some people ingest camphor to treat gas and to cough up phlegm from respiratory infections. People who have certain medical issues, such as liver conditions, heart conditions, asthma, and epilepsy, should not use camphor. People who are pregnant or breastfeeding and children under two years old should never use camphor at all, as it can cause birth defects and lead to serious health problems or death in young children.

Camphor can also be used in a number of other products, including cleaning products and food flavorings. Even though camphor should not generally be ingested, it is used in small amounts in food flavorings. The European Union has suggested limiting the use of camphor in food flavorings as a precaution so people do not ingest too much. One reason that significant amounts of camphor should not be ingested is that it can build up in the body’s tissue. If too much of the substance builds up in the body, a person can have camphor toxicity. Camphor is also used in the production of plastics and celluloids. In addition, camphor is used to produce insect repellant, soaps, and perfumes. Although camphor oil from the tree is still sometimes used in medicine and manufacturing, many companies have switched to using a synthetic version of the oil created from compounds found in turpentine.

In camphor’s native Asia, it is used for lumber and camphor oil production. In the late 1800s, people introduced the camphor tree to Florida. People hoped to turn the camphor tree into a profitable commodity in the United States. However, camphor production was not profitable. The tree thrived in Florida’s warm climate. Soon camphor trees took the place of a number of native trees. Camphor is now considered an invasive species in Florida, and it is listed as a Category I species on the Florida Exotic Pest Plant Council (FLEPPC). That is because the tree displaces and disrupts native plants. Native plants, such as the Florida jujube, are being pushed out by camphor trees. As of 2024, camphor trees grew in Florida, Georgia, Texas, Alabama, Louisiana, Mississippi, North Carolina, Texas, and South Carolina. People buy and plant camphor trees for ornamental purposes, encouraging the spread of the invasive species. Birds and other animals that eat the plant’s fruit also help spread the species to new places by expelling seeds in new locations. Researchers in Florida and other parts of the country have tried to stop the spread of camphor trees. To do this, researchers first try to eliminate mature trees that produce a large amount of fruit. Researchers also cut down small trees and monitor open areas where the trees might flourish.

Bibliography

“Camphor.” WebMD, 2018, www.webmd.com/vitamins/ai/ingredientmono-709/camphor. Accessed 12 Sept. 2018.

“Camphor in Flavourings and Other Food Ingredients with Flavouring Properties.” European Food Safety Authority, 2008, citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.550.4975&rep=rep1&type=pdf. Accessed 12 Sept. 2018.

“Camphor Tree.” Louisiana Plant Identification and Interactive Virtual Tours, 23 Apr. 2018, www.rnr.lsu.edu/plantid/species/camphortree/camphortree.htm. Accessed 12 Sept. 2018.

“Cinnamomum Camphora.” UF/IFAS Center for Aquatic and Invasive Plants, 2018, plants.ifas.ufl.edu/plant-directory/cinnamomum-camphora/. Accessed 12 Sept. 2018.

“Cinnamomum Camphora (L.) J. Presl.” University of Connecticut, 2018, florawww.eeb.uconn.edu/198501480.html. Accessed 12 Sept. 2018.

Cronkleton, Emily. “How to Use Camphor Safely: Benefits and Precautions.” Healthline, 2018, www.healthline.com/health/what-is-camphor. Accessed 12 Sept. 2018.

Duke, James A. CRC Handbook of Alternative Cash Crops. CRC Press, 1993.

Rankel, Kiersten. "Where Can the Camphor Tree Grow? Zones 9a-11b." Gregarious, Inc., 29 Sept. 2024, greg.app/camphor-tree-hardiness-zone/. Accessed 6 Nov. 2024.

Stuart, Armando Gonzalez. “Camphor.” Herbal Safety, UT El Paso, 2018, www.herbalsafety.utep.edu/herbal-fact-sheets/camphor/. Accessed 12 Sept. 2018.