<P> Since the reaction occurs slowly at room temperature, mixtures (cake batter, etc .) can be allowed to stand without rising until they are heated in the oven . </P> <P> Sodium bicarbonate was sometimes used in cooking green vegetables, as it gives them a bright green colour--which has been described as artificial - looking--due to its reacting with chlorophyll to produce chlorophyllin . However, this tends to affect taste, texture and nutritional content, and is no longer common . Baking soda is still used, though, in the traditional British mushy peas recipe for soaking the peas . It is also used in Asian and Latin American cuisine to tenderize meats . Baking soda may react with acids in food, including vitamin C (L - ascorbic acid). It is also used in breading such as for fried foods to enhance crispness and allow passages for steam to escape, so the breading is not blown off during cooking . </P> <P> "Baking powder" is also sold for cooking; it contains around 30% of HCO and various acidic ingredients which are activated by the addition of water, without the need for additional acids in the cooking medium . </P> <P> Many forms of baking powder contain sodium bicarbonate combined with calcium acid phosphate, sodium aluminium phosphate or cream of tartar . Baking soda is alkaline; the acid used in baking powder avoids a metallic taste when the chemical change during baking creates sodium carbonate . </P>

Where is sodium bicarbonate found in the body