Ginger powder is a spice made from the dried root of the ginger plant, and has a sharp, spicy-sweet flavor with a pungent aroma.
It’s used as a food flavoring and medicine. Ginger contains chemicals that might reduce nausea and swelling. These chemicals seem to work in the stomach and intestines, but they might also help the brain and nervous system to control nausea. People commonly use ginger for many types of nausea and vomiting.
As the water content is removed from ginger in the drying process, the concentration of polyphenols, and thus its antioxidant activity, increases. In short, dried ginger shows greater antioxidant activity than fresh.