Most of the capsaicin in a pungent -LRB- hot -RRB- pepper is concentrated in blisters on the epidermis of the interior ribs -LRB- septa -RRB- that divide the chambers of the fruit to which the seeds are attached .

Most of the capsaicin in a pepper is found in the interior ribs that divide the chambers of the fruit , and to which the seeds are attached .
