Ginger is a flowering plant that originated in Southeast Asia. It's among the healthiest (and most delicious) spices on the planet. It belongs to the Zingiberaceae family, and it's closely related to turmeric, cardamom, and galangal. The rhizome (underground part of the stem) is the part commonly used as a spice. It's sometimes added to processed foods and cosmetics. Ginger extract is a fresh rhizome extract of ginger, Zingiberaceae. The main components are gingerol, gingerol, myrtene, α-curcumene, methylheptenone and so on. The main component of gingerol is ginger oil, which is a yellow oily liquid with a spicy and bitter taste. Gingerol can be decomposed into a mixture of gingerenone, gingerenone and gingerpene ketone.