Zingiberaceae or the ginger family is a family of flowering plants made up of about 50 genera with a total of about 1600 known species of aromatic perennial herbs with creeping horizontal or tuberous rhizomes distributed throughout tropical Africa, Asia, and the Americas. Many of the family's species are important ornamental, spice, or medicinal plants. Ornamental genera include the shell gingers (Alpinia), Siam or summer tulip, Globba, ginger lily (Hedychium), Kaempferia, torch-ginger Etlingera elatior, Renealmia, and ginger (Zingiber). Spices include ginger (Zingiber), galangal or Thai ginger, melegueta pepper, myoga, korarima, turmeric (Curcuma), and cardamom.
Ginger is a flowering plant whose rhizome, ginger root or ginger, is widely used as a spice and a folk medicine. It is a herbaceous perennial which grows annual pseudostems about one meter tall, bearing narrow leaf blades. The inflorescences bear flowers having pale yellow petals with purple edges, and arise directly from the rhizome on separate shoots.
Galangal is a common name for several tropical rhizomatous spices.
Boesenbergia rotunda, commonly known as Chinese keys, fingerroot, lesser galangal or Chinese ginger, is a medicinal and culinary herb from China and Southeast Asia. In English, the root has traditionally been called fingerroot, because the shape of the rhizome resembles that of fingers growing out of a center piece.
In botany and dendrology, a rhizome is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow horizontally. The rhizome also retains the ability to allow new shoots to grow upwards.
Ethyl cinnamate is the ester of cinnamic acid and ethanol. It is present in the essential oil of cinnamon. Pure ethyl cinnamate has a "fruity and balsamic odor, reminiscent of cinnamon with an amber note".
Gingerol ([6]-gingerol) is a phenolic phytochemical compound found in fresh ginger that activates heat receptors on the tongue. It is normally found as a pungent yellow oil in the ginger rhizome, but can also form a low-melting crystalline solid. This chemical compound is found in all members of the Zingiberaceae family and is high in concentrations in the grains of paradise as well as an African Ginger species.
Eucalyptol is a monoterpenoid colorless liquid, and a bicyclic ether. It has a fresh camphor-like odor and a spicy, cooling taste. It is insoluble in water, but miscible with organic solvents. Eucalyptol makes up about 70–90% of eucalyptus oil. Eucalyptol forms crystalline adducts with hydrohalic acids, o-cresol, resorcinol, and phosphoric acid. Formation of these adducts is useful for purification.
Etlingera elatior is a species of herbaceous perennial plant in the family Zingiberaceae; it is native to Indonesia, Thailand, Malaysia and New Guinea.
Alpinia galanga, a plant in the ginger family, bears a rhizome used largely as an herb in Unani medicine and as a spice in Arab cuisine and Southeast Asian cookery. It is one of four plants known as "galangal". Its common names include greater galangal, lengkuas, and blue ginger.
Alpinia officinarum, known as lesser galangal, is a plant in the ginger family, cultivated in Southeast Asia. It originated in China, where its name ultimately derives. It can grow 1.5 to 2 m high, with long leaves and reddish-white flowers. The rhizomes, known as galangal, are valued for their sweet spicy flavor and aromatic scent. These are used throughout Asia in curries and perfumes, and were previously used widely in Europe. They are also used as a herbal remedy.
Galangin is a flavonol, a type of flavonoid.
Cassumunar ginger: Zingiber cassumunar, now thought to be a synonym of Zingiber montanum (J.König) Link ex A.Dietr., is a species of plant in the ginger family and is also a relative of galangal. It is called plai (ไพล) in Thailand, in addition to in Isan language and in northern Thai language. The rhizome of variant 'Roxburgh' is used medicinally in massage and even in food in Thailand, and somewhat resembles ginger root or galangal. In aromatherapy, plai oil is used as an essential oil and is believed to ease pain and inflammation. It is also known as ponlei (ពន្លៃ) in Cambodia.
Kaempferia rotunda is a flowering plant species in the ginger family. It is native to China, the Indian subcontinent, Indochina, and widely cultivated elsewhere. It is reportedly naturalized in Java, Malaysia and Costa Rica.
Alpinia nigra is a medium-sized herb belonging to the ginger family. The rhizome is well known in many Asian cultures as a medicinal and culinary item. In many Asian tribal communities it is a part of the diet along with rice.
Zingibain, zingipain, or ginger protease is a cysteine protease enzyme found in ginger rhizomes. It catalyses the preferential cleavage of peptides with a proline residue at the P2 position. It has two distinct forms, ginger protease I (GP-I) and ginger protease II (GP-II).
Kaempferia parviflora, the Thai black ginger, Thai ginseng or krachai dum, is an herbaceous plant in the family Zingiberaceae, native to Thailand. Kaempferia parviflora has been the subject of increased scientific interest in recent years. In a systematic review in 2016, 683 records and 7 studies were analyzed, with a reference that krachai dum significantly increased hand grip strength and enhanced the response to sexual erotic stimuli. An earlier study found that acute dosing did not have an effect on sprint and endurance exercise in humans, but indicated that chronic effects or actions in other populations cannot be excluded. A study from 2007 found that the ethanolic extract but not the volatile oil of kaempferia parviflora had antiallergic properties.
Rosemary Margaret Smith (1933–2004) was a Scottish botanist and illustrator who specialized in the taxonomy of the Zingiberaceae, or ginger family. Many of the species she classified and identified as being placed into improper genera were found in Asian countries, especially in the isolated island of Borneo.
