... food, perfume, cosmetics, medicine Obtained by the Steam distillation of dried rhizomes of Zingiber officianale Roscoe. dark yellow to light brown ... Rotation: - 28 ° - 47 °-Solubility: soluble in 75% of ethanol-Content: ginger alcohol, ketones ginger, ginger- ene phenol, ... including the commodity inspection time)Function:the raw materail of medicine,food additives,health products and cosmetics pure ...