Does the questioner want to ask "What is the principle of the concoction of bitter almonds through the determination of the activity of the enzyme of bitter almond kernel?" The principle of the concoction of bitter almond kernel is to utilize the enzyme of bitter almond kernel to decompose hydrocyanic acid in the bitter almond kernel so as to achieve the effect of removing the poisonous substances. According to the query related information, bitter almond contains a kind of toxic substance called hydrocyanic acid, and after the concoction, this kind of toxic substance will be decomposed by the enzyme of bitter almond, so that the bitter almond loses its toxicity. During the concoction process, bitter almonds are heated or immersed in water, and these operations can break the chemical bonds of the cyanogenic glycosides, causing them to break down into hydrocyanic acid and glycosidase. Bitter almond enzyme activity is based on this principle, by observing the bitter almond enzyme on the bitter almond cyanogenic glycosides in the rate of decomposition to determine whether the bitter almonds after the concoction, if the bitter almond enzyme activity is higher, indicating that the cyanogenic glycosides in the bitter almonds in the content of the lower, the concoction effect is better.