The most common cultivar of pumpkin grown specifically for its seeds is the Styrian pumpkin, which yields the small, smooth green seeds sold in grocery stores. Styrian pumpkin seeds are ideal for eating because they are rich in oil and naturally hull-less.
Carbamide peroxide (also known as urea peroxide) is the most popular over-the-counter and professional bleaching agent used for teeth whitening. The main and active ingredient in carbamide peroxide is hydrogen peroxide.arbamide peroxide (also known as urea peroxide) is the most popular over-the-counter and professional bleaching agent used for teeth whitening. The main and active ingredient in carbamide peroxide is hydrogen peroxide.
To prevent this superoxide mediated damage, all cells contain the enzyme superoxide dismutase. This enzyme speeds up the reaction between superoxide molecules that forms hydrogen peroxide. Ironically, hydrogen peroxide is, as mentioned earlier, toxic to cells and must also be removed. The majority of the hydrogen peroxide is broken down to oxygen and water by the cellular enzyme catalase.