| heavy metal accumulation in leaves and beans of cacao (theobroma cacao l.) in major cacao growing regions in peru. | peru is one of the leading exporters of organic cacao beans in the world. however, the accumulation of heavy metals in cacao beans represents a problem for cocoa bean export and chocolate quality. the aim of this study was to investigate the distribution and accumulation of heavy metals in cacao leaves and cocoa beans in three major cacao growing regions of peru. the study was conducted in cacao plantations of 10 to 15years old in three regions of peru: north (regions of tumbes, piura, cajamarca ... | 2017 | 28683423 |