Ginger is the ginger family ginger, perennial herb root medicine.Dry ginger fresh heat, with wet reheat, back yangtong pulse, dry wet mucus function.In dry ginger, gingerol, gingerenol and gingerone have good anti-inflammation and liver protection, pressure regulation and other pharmacological activities.China’s ginger production is high, processing into ginger oil, greatly improved economic benefits.
Ginger essential oil
Ginger essential oil is made from roots of unpeeled or dried ground parts. After rinsing and cold-pressed, ginger is distilled by steam distillation, and the oil yield is between 0.27 and 0.33%.
1.Skin efficacy dissipates congestion, cures trauma, recuperates oily skin, treats trauma, enhances memory, activates blood meridians, and removes athlete’s foot.
2.Physiological efficacy aphrodisiac, treatment of sexual impotence, improvement of menstrual disorder, elimination of blood accumulation, elimination of body humidity, and reduction of throat and tonsillitis.
3.Psychological effect: warm emotions, make people feel sharp, enhance memory and feel happy.
Essential oil extraction method:
1.Common methods: steam distillation, solvent extraction, pressing and adsorption.
Steam distillation is divided into water distillation, water distillation, steam distillation.
The extraction method is generally only applicable to the processing of fragrant flowers
Squeeze method is mainly used to extract citrus essential oil
Adsorption method is mainly applied to time-consuming and inefficient materials.
2.High-tech methods: supercritical carbon dioxide extraction, molecular distillation, subcritical extraction.
High purity and high efficiency of high technology, however, these three methods are generally less used due to their high consumption and high cost.
3.Principle: the essential oil of the plant diffuses into the water through the infiltration of water molecules into the raw material cells, forming the azeotrope between the essential oil and water.The oil and water are separated by condensation
4.Ginger essential oil extraction processing:
Ginger – wash – section – drying (70 ° to dry, bake 15 hours) best, shatter – grinding ingredients — — water for direct distillation, oil-water separation, ginger essential oil
5.Factors influencing oil yield of ginger essential oil:
The degree of broken ginger powder, proportion of materials, soaking time, distillation time, drying temperature, area of ginger skin all affect the extraction of ginger essential oil.
According to the experimental data, the drying temperature has the greatest impact on the extraction rate of ginger oil, followed by the soaking time, followed by the distillation time, and the material delivery ratio has the least impact.
The best extraction technology conditions for: for 4 hours, 6 hours of distillation and material than 1:20, drying temperature of 70 ° c, the highest drying rate of ginger oil extracted 15 hours.