maculata were assumed to be caused by pinoresinol and its glucoside, prunasin
, catalpol and two sesquiterpenes.
In Prunus, enzymes associated with this activity include amygdalin hydrolase, prunasin
hydrolase, and mandelonitrile lyase (Swain et al.
Isolation and characterization of multiple forms of prunasin
hydrolase from black cherry (Prunus serotina Ehrh.
Graham CJ Non-structural carbohydrate and prunasin
composition of peach seedlings fertilized with different nitrogen source and aluminum.
nutans the cyanogenic glucoside prunasin
 as well as some valerolactones such as parasorbic acid and 5-methyl-3a-hydroxyvalerolactone .
It also contains the enzyme emulsin which in the presence of water acts on soluble glycosides amygdalin and prunasin
 yielding glucose cyanide and the essential oil of bitter almonds which is nearly pure benzaldehyde.
, and -cyanoalanine in common vetch seed as sourcesof urinary thiocyanate in the rat.
Peach rootstock differences in ring nematode tolerance related to effects on tree dry weight, carbohydrates, and prunasin
To briefly summarize information about amygdalin and nitrilosides, the following is offered: Amygdalin is one of many nitriloside compounds, which are natural cyanide-containing substances found in many foods, including all of the seeds of the prunasin
family (apricots, peaches, apples, pears, and others), millet, buckwheat, cassava melons, and many others.
Hydrolysis of the cyanogenic glycosides amygdalin, prunasin
and linamarin by ruminal microorganisms.
The first pathway was described as "first pass" metabolism of amygdalin to prunasin
(D-mandelonitrile [beta]- D -glucoside) by cleavage of the terminal glucose residue via enzymatic [beta](1-6)-glucosidase activity in the proximal small intestine.
Majak and Cheng (1984, 1987) demonstrated that many ruminal bacteria have the ability to release free cyanide from the glycosides amygdalin (laetrile), prunasin
, and linamarin (cyanogenic glucosides in cassava).