For example, a UEA of amylase, a starch digesting enzyme found in saliva, is defined as the amount of enzyme capable of producing 1 micro Mole of maltose from starch solution in one minute at body temperature and pH 5.3. Protease The quantity of enzyme which produces amino acids equivalent to 100 micrograms of l-tyrosine in one milliliter of protein filtrate in 60 minutes. The quantity of enzyme that will liberate 1 micro Mole of o-nitrophenol per minute from lactose. The quantity of enzyme capable of producing 1 micro Mole of fatty acid from olive oil in one minute at body temperature and pH 5.5. The quantity of enzyme capable of producing 1 micro Mole of sugar from sodium carboxymethylcellulose at body temperature and pH 6.0.
Green tea contains huge amounts of a phytochemical bioflavonoid called cathechin.
Until recently though, researchers had been unable to identify its precise mechanism. Urokinase is often found in large amounts in human cancers. The researchers compared the green tea cathechins to a drug known as Amiloride that is prescribed to treat high blood pressure and congestive heart failure. Amiloride is administered in maximum dose of 20 mg. per day, whereas a single cup of tea contains 150 mg.