Sesquiterpene Isomerization

Sesquiterpene isomerization refers to the structural rearrangement of 15-carbon terpene molecules during cannabis cultivation, curing, and storage. Cannabis plants produce sesquiterpenes like β-caryophyllene, α-humulene, and β-myrcene; under heat, light, or oxidative stress, these molecules can shift into different spatial configurations (isomers) while retaining the same molecular formula. This process is of particular interest to breeders and cultivators because isomerization can alter the aroma profile and volatile composition over time. Lineage records frequently report that certain genetic backgrounds—particularly those with high sesquiterpene expression—display more pronounced isomerization patterns during post-harvest handling. Understanding this chemistry helps inform decisions about drying, curing temperature, and long-term seed or flower storage strategies.

Breeders working in terpene stabilization programs monitor sesquiterpene isomerization to select for chemically stable lineages that maintain consistent aroma and profile integrity across seasons and storage conditions. Genetic lines showing resistance to rapid isomerization are valued in preservation and commercial breeding contexts.