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Turmeric is used in product systems that are packaged to protect them from sunlight. The oleoresin is used for oil-containing products. The curcumin/polysorbate solution or curcumin powder dissolved in alcohol is used for water containing products. Over-colouring, such as in pickles, relishes and mustard, is sometimes used to compensate for fading. Turmeric has found application in canned beverages, baked products, dairy products, ice cream, yogurts, yellow cakes, biscuits, popcorn-color, sweets, cake icings, cereals, sauces, gelatines, direct compression tablets, etc. In combination with Annatto it has been used to colour cheeses, dry mixes, salad dressings, winter butter and margarine.
The medicinal properties of the turmeric have for millennia been known to the ancient Indians and have been expounded in the Ayurvedic texts. It is only in recent years that Western scientists have increasingly recognised the medicinal properties of turmeric. According to a 2005 article in the Wall Street Journal titled, "Common Indian Spice Stirs Hope," research activity into curcumin, the active ingredient in turmeric, is exploding. Two hundred and fifty-six curcumin papers were published in the past year according to a search of the U.S. National Library of Medicine. Supplement sales have increased 35% from 2004, and the U.S. National Institutes of Health has four clinical trials underway to study curcumin treatment for pancreatic cancer, multiple myeloma, Alzheimer's, and colorectal cancer. A 2004 UCLA-Veterans Affairs study involving genetically altered mice suggests that curcumin, the active ingredient in turmeric, might inhibit the accumulation of destructive beta amyloids in the brains of Alzheimer's disease patients and also break up existing plaques. "Curcumin has been used for thousands of years as a safe anti-inflammatory in a variety of ailments as part of Indian traditional medicine," Gregory Cole, Professor of medicine and neurology at the David Geffen School of Medicine at UCLA said. Another 2004 study conducted at Yale University involved oral administration of circumin to mice homozygous for the most common allele implicated in cystic fibrosis. Treatment with circumin restored physiologically-relevant levels of protein function.Recent studies have shown that turmeric can be effective in fighting a number of STDs including chlamydia and gonorrhea. Investigations into the low incidence of colorectal cancer amongst ethnic groups with a large intake of curries compared with the indigenous population have suggested that some active ingredients of turmeric may have anti-cancer properties. Anti-tumoral effects against melanoma cells have been demonstrated. Second-stage trials of a turmeric-based drug as a possible treatment for cancer are currently underway. However, according to recent research results , the component curcumin causes degradation of the human protein p53. p53 is responsible for removing damaged cells that are likely to become tumors, suggesting curcumin could accelerate tumor development. Consuming large doses is not recommended in cases of gallstones, obstructive jaundice, acute bilious colic and toxic liver disorders. Curry Pharmaceuticals, based in North Carolina, is studying the use of a curcumin cream for psoriasis treatment. Another company is already selling a cream based on curcumin called "Psoria-Gold," which shows anecdotal promise of treating the disease. A recent study involving mice has shown that turmeric slows the spread of breast cancer into lungs and other body parts. Turmeric also enhances the effect of taxol in reducing metastasis of breast cancer . It is also said that turmeric can strengthen the blood-brain barrier against attacks that result from auto-immune diseases (such as Multiple sclerosis)[verification needed]. In the November 2006 issue of Arthritis & Rheumatism, a study was published that showed the effectiveness of turmeric in the reduction of joint inflammation, and recommended clinical trials as a possible treatment for the alleviation of arthritis symptoms

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