Bitter almond contains amygdalin, which is hydrolyzed to produce amygdanitrile, which is unstable and releases hydrocyanic acid. When processing, it can be boiled in water for 15 minutes to hydrolyze it and release hydrocyanic acid, which can reduce its toxicity. Then fry it.

The processing method of bitter almond in China Pharmacopoeia 2005 edition includes impurity removal. Mash it with time. However, both melted and fried bitter almonds are processed from bitter almonds. Its principle is to reduce its toxicity.

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