Natural Products from Burseraceae: Chemical Diversity and Pharmaceutical Potentials

Protium heptaphyllum is a Burseraceae species recognised for its aromatic resin, traditional medicinal uses, and diverse secondary metabolites. This chapter presents an integrative literature review of the phytochemical profile, biological activities, toxicological evidence, and conservation aspects of this species. The review considered studies addressing chemical characterisation, identification of secondary metabolites, chromatographic analysis, toxicity, biotechnological relevance, and sustainability. The available literature indicates that P. heptaphyllum contains several classes of bioactive compounds, particularly monoterpenes, sesquiterpenes, triterpenes, flavonoids, and coumarins. Compounds such as α-amyrin, β-amyrin, quercetin, catechin, and scopoletin have been associated with reported biological activities, including anti-inflammatory, analgesic, antimicrobial, antioxidant, gastroprotective, and cytotoxic effects in experimental models. However, most available evidence is preclinical, and clinical validation remains limited. Toxicological studies suggest that crude resin may show low acute lethality, whereas isolated amyrin mixtures require further safety evaluation because sub-lethal tissue alterations have been reported in experimental animals. The chemical composition of extracts may vary according to the plant part, extraction method, and environmental conditions, reinforcing the need for standardisation. The growing use of the resin also raises conservation concerns, especially where extraction is not supported by sustainable management practices. Overall, P. heptaphyllum represents a relevant species for phytochemical and pharmacological research, but its safe and sustainable use depends on further toxicological studies, improved extract standardisation, responsible management, and the integration of scientific knowledge with conservation strategies.