Many believe that the appearance of the grapefruit happened first on the island of Jamaica, although there are opinions that birthplace is Barbados. Many botanists contend that grapefruit is a hybrid cross between a sweet or bitter orange with exotic citrus fruit pomelo.
The earliest popular name for grapefruit was “forbidden fruit” of Barbados (1750). The name “grapefruit” in turn was borrowed from English, where (grapefruit = grape + fruit) literally means “grapefruit” and was first consumed in Jamaica in 1814. Botanist John Moon decided that the fruit variety is modified grapes because grapefruits grow in clusters, like the grains of grapes. Later, already properly classified botanical, fruit grapefruit became known as “Paradise citrus” (Citrus paradisi, Rutaceae). This name, however, is simply not managed to establish itself in everyday life.
For plant grapefruit
The subtropical citrus tree reaches 5-6 meters. Its leaves are dark green, thin and long to meter and a half. Its fruits, grapefruits are yellow to yellow pink color and diameter between ten to fifteen centimeters. The weight of one fruit varies between 300 to 600 grams and contains the soft and acidic core of a different color: red, pink and white. The sweetness and color of the core depend on the variety and brand.
Grapefruit yesterday and today
Before the 19th-century leaves, grapefruit was more valuable because of their decorative value. The fruit became a popular food in the late 19th century until then consumed (and rare) only in the island colonies of Great Britain. The US quickly assimilate new crop, as to this day remain leaders in world production, followed by Mexico, China, Israel, South Africa, Argentina, Japan, India, and Cyprus.
Rich in vitamin C and contain B9. Red and pink varieties contain more pro-vitamin A than white varieties.
It contains potassium and magnesium.
Contains: naringin, bergamottin.
Good source of pectin fiber (if eaten with white skins).
Red and pink grapefruits are a good source of lycopene – an important antioxidant.
Grapefruit has a low glycemic index and is among the most popular fruits consumed in diets for weight loss. Other benefits are the properties of natural antibiotics, mild diuretic and also: tones gastrointestinal mucosa and improve digestion. Besides the many nutrients, this fruit brings consuming it and some side effects.
Recently it proved that grapefruit is not healthy for everyone. This is due to substances bergamottin contained in the softcore. It acts as inhibitors of a specific enzyme important for the metabolism of a number of substances in the human body.
Problem represents mostly:
The daily continuous consumption of grapefruit or grapefruit juice for women (increasing the risk of breast cancer) is blocking the enzyme P450 3A4 (CYP3A4), which is important for the production of estrogen
How to choose and store?
The color of the rind of citrus fruit can be misleading. Red outside does not mean that is always ripe. Select heavy for its size fruit, slightly bowing to pressure. Avoid fruit with soft areas any sign of bruising or impaired ovality (unilaterally flattened).
At room temperature, grapefruit can be maintained between 8 and 15 days. For a long time, store in a refrigerator.