Discrimination of cinnamon bark and cinnamon twig samples sourced from various countries using HPLC-based fingerprint analysis

► HPLC method was developed to assess the quality of cinnamon bark and twig. ► Seven bioactive components including cinnamic acid were separated and quantified. ► Fingerprint analysis was carried out to discriminate cinnamon bark from twig. ► Partial least-squares discriminant analysis showed good classification.