Jasmine (Jasminum) (from Old French Jasmine which is from the Persian yasmin, i.e. "gift from God", via Arabic) is a genus of shrubs and vines in the olive family (Oleaceae),with about 200 species, native to tropical and warm temperate regions of the Old World. The majority of species grow as climbers on other plants or on structures such as chicken wire, gates or fences. The leaves can be either evergreen (green all year round) or deciduous (falling leaves in autumn).Jasmine is widely cultivated for its flowers, enjoyed in the garden, as house plants, and as cut flowers. The flowers are worn by women in their hair in southern and southeast Asia. Many species also yield an absolute, which is used in the production of perfumes and incense. Jasmine tisane is consumed in China, where it is called Jasmine flower tea (pinyin: mò lì huā chá). Jasminum sambac flowers are also used to make tea, which often has a base of green tea, but sometimes an Oolong base is used.
The delicate Jasmine flower opens only at night and is plucked in the morning when the tiny petals are tightly closed. They are then stored in a cool place until night. Between six and eight in the evening, as the temperature cools, the petals begin to open. Flowers and tea are "mated" in machines that control temperature and humidity. It takes four hours or so for the tea to absorb the fragrance and flavour of the Jasmine blossoms, and for the highest grades, this process may be repeated as many as seven times.
Because the tea has absorbed moisture from the flowers, it must be refired to prevent spoilage. The spent flowers may or may not be removed from the final product, as the flowers are completely dry and contain no aroma. Giant fans are used to blow away and remove the petals from the denser tea leaves. If present, they simply add visual appeal and are no indication of the quality of the tea. The French are known for their jasmine syrup, most commonly made from an extract of jasmine flowers.
In the United States, this French jasmine syrup is used to make jasmine scones. Jasmine essential oil is now commonly in use. Its flowers are either extracted by the labour-intensive method of enfleurage or through chemical extraction. The reason it is so expensive is because of the enormous amount of flowers needed to produce a small amount of oil. The flowers have to be gathered at night because the odour of jasmine is more powerful after dark.
The flowers are laid out on cotton cloths soaked in olive oil for several days and then extracted leaving the true Jasmine essence. Some of the countries producing Jasmine essential oil are India, Egypt, China and Morocco. Its chemical constituents include methyl anthranilate, indole, benzyl alcohol, linalool, and skatole.
