Ginger oil

Ginger oil production is done by distillation (by steam distillation or water distillation) of its rhizome which had previously been dried in the form of flakes or powders. Average yield of this essential oil is 1-3% (dry) depending on its type, the effectiveness and the handling of the distillation. Ginger oil extraction with solvents produces a higher yield than the refinery, because not only its essential oil, but its oleoresin is also extracted, which provides the spicy flavor.
Environmental conditions where its plants can grow well is at about 2500-4000 mm rainfall per year, at a temperature of 25-35 ° C, and medium or high air humidity. The plant requires a fertile soil, friable, rich in humus and well drained; can also grow in soil and ground brown red latosol andosol.
The main compounds of ginger oil is zingiberene, and zingiberol which causes its typical smell. It is used as a raw material of soft drink, in the flavoring industry, pharmacy and perfumery.
Ginger oil is largely exported to USA, Singapore, Germany, India and South Africa, with the largest importers are USA. Indonesia is still the third largest producer after China and India in global markets, whereas the climate and land suitability of Indonesia is very potential.
Modern researchers support for its use as a 'traditional herb'. From the research, its extract, either from its fresh and dried rhizome, efficacious in dealing with bacterial infections, fungal infections, seizures, pain, wounds and gastric disorders, tumors, cramps and allergic reactions. The extract which is examined is the appropriate standard gingerol, which is an extract that does not lose flavor and sharp aroma.
Research on animal experiments ( mice) that is performed in China and western countries, showed that the fresh rhizome is effective for relieving pain and infection. Experiments in vitro (laboratory) showed that ginger oil inhibits oxidation (= are antioxidants) that may reduce the risk of cancer, and also inhibits the growth of microorganism such as bacteria.
Ginger oil is also beneficial for blood circulation. It has a property anticoagulant (anti blood clotting) that is more powerful than garlic or onion. It is also capable of lowering cholesterol levels because it can reduce the absorption of cholesterol in the blood and liver. Research conducted by experts in Japan showed that this oil can lower blood pressure by reducing peripheral blood flow rate.
Experts also try it to treat migraine. These tests are encouraged therapies to treat disorders of the nervous system. Its benefit as a migraine drug still requires further research.
In most cases preferred ginger oil research to determine their effect on digestion. In the land of China, the results of research conducted to humans showed that a drink made of fresh rhizome can reduce gastric acid secretion for several hours. Then it increased again after some time. Another study states that its dried root will strengthen the stomach, small intestine and prevents vomiting.
Recent studies indicate that acetone and methanol extracts from the rhizome has a strong effect to inhibit the occurrence of injury in the stomach. Other studies show that gingerol able to overcome the affect toxicity (poisoning) in the liver by increasing bile acid.

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