Zingiber officinale is a tall herbaceous aromatic herb. The vitamins present in green ginger are: thiamine, 0.06; riboflavin, 0.03; niacin, 0.60; and vitamin C, 6.0mg./100 g. The value reported for carotene in the fresh rhizome is 40 µg./100 g. The predominant sesquiterpene hydrocarbon is zingiberene (a- and �-zingiberene, C15H24; 35.6% in one sample of the Indian oil);other sesquiterpenes present in the oil are ar-curcumene (17.7%), farnesene (9.8%). Besides the pungent principles, the oleoresin contains essential oil and also non-pungent substances.