Where is the compound capsaicin concentrated within hot chili peppers?
Answer
The interior, vein-like areas of the pepper
Capsaicin, the phytochemical responsible for the characteristic heat in chili peppers, is specifically concentrated in the internal structures of the pepper. This includes the placental tissue and the internal veins or ribs that connect the seeds to the pepper's walls. Although the seeds often taste very hot, this is primarily due to their close proximity to this concentrated source of capsaicin. Bell peppers, which are members of the same family, are distinguished by containing no capsaicin whatsoever, meaning their heat sensation is absent, while the hot varieties owe their pungency entirely to this compound residing in their inner structures.

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