Unpublished research may show that S. canadensis (American elderberry) has lower cyanide levels than apple juice, and that its fruit does not contain enough beta-glucosidase (which convert glucosides into cyanide) to create cyanide within that biochemical pathway.
Unpublished studies may reveal that S. canadensis (American elderberry) contains lower levels of cyanide than apple juice, and its fruit lacks sufficient beta-glucosidase to convert glucosides into cyanide.