The bitter almond contains amygdalin.Acid or enzyme can decompose amygdalin to prussic acid and benzaldehyde.Prussic acid is a poisonous substance.

• 苦杏仁含有苦杏仁甙,它在酸或酶的作用下,可以分解产生氢氰酸和苯甲醛,氢氰酸剧毒。