Sugarcane

Sugarcane is a plant of the grass family (Poaceae) whose stems are filled with a juice containing high levels of sugar. It is the world's largest source of sugar for household use, surpassing sugar beet, which is grown in temperate regions.

The plant has rigid, jointed stems several meters long. It requires high temperatures, abundant water, and nutrient-rich soil. It is a perennial crop: when cut, the root system produces new stems that can be harvested several times from the same field.

Cultivation

Sugarcane is not usually grown from seed, but rather from cuttings of the stem containing buds. The time between planting and the first harvest is typically less than two years, depending on climate and variety. Regular irrigation is necessary in areas of low rainfall.

Processing

After harvest, the stems are quickly processed to extract the juice, as sugar content decreases when the plant dries. The juice is filtered, boiled, and crystallized until it becomes sugar crystals, which are then separated by centrifuge machines. The remaining thick juice is called molasses, while the fibrous residue from the stems, known as bagasse, is used for industrial fuel and paper.

Other Uses

Sugarcane is used to produce ethanol, which is added to fuel for vehicles; Brazil is the leading country to have established a large-scale ethanol-from-sugarcane system. It is also used to make beverages (fresh juice), dark sugar, and rum. In many places, people consume the stem directly.

History and Distribution

Sugarcane originally comes from the region of Papua New Guinea and Southeast Asia, where it gradually spread to India, the Middle East, and the Mediterranean. Following the age of sea exploration, it was brought to the Americas, where large plantations were worked by enslaved labor for centuries. Today it is grown extensively in Brazil, India, China, Thailand, and many African countries.