Turmeric, with its brilliant yellow color, has been used as a dye, medicine, and flavoring since 600 BC. Turmeric powder should be kept in an airtight container and stored in a cool dry place. Curcumin, one of the active ingredients in turmeric, induces the flow of bile, which breaks down fats. Curcumin is also an anti-inflammatory agent that relieves the aches and pains associated with arthritis. It can be taken on a daily basis to improve body immunity to various allergic conditions owing to its anti-Bacterial activities. Turmeric's volatile oil functions as an external antibiotic, preventing bacterial infection in wounds.
The turmeric, with its antibacterial action, will prevent the bacterial wound infections. Turmeric oil (obtained from Turmeric) is an effective mosquito repellant and compares favourably with dimethyl phthalate in its repellent action against mosquitoes. Turmeric powder, extracts and curcumin also exhibit antioxidant property. Turmeric's major constituents are 'curcuma's, various 'curcuminoids' and 'curcuma oil' (particularly dl-ar-turmerone), which exhibit a wide range of medicinal activities.
Turmeric is a spice valued for its color, flavor, cosmetic and medicinal properties. The characteristic yellow color is due to Curcumin and related compounds called Curcuminoids present in rhizomes of turmeric in the range of 3 to 6%.