Oxidative Aroma Pathways

Oxidative aroma pathways describe chemical transformations that occur when cannabis plant material is exposed to oxygen, heat, or light during drying, curing, and storage. These processes involve enzymatic and non-enzymatic oxidation of terpenes and other volatile compounds, which can create entirely new aromatic profiles distinct from fresh plant material. Common products of oxidation include aldehydes, ketones, and secondary terpenes that contribute to aged or cured flower character. Unlike fresh "green" aromas, oxidative pathways often generate earthier, spicier, or more complex scent descriptors. Understanding these chemical changes is important for breeders selecting cultivars with stable, desirable cured aromas, and for growers optimizing post-harvest conditions.

Breeders working with oxidative stability consider which parent cultivars produce terpene profiles that transform predictably during cure and storage. Selecting for balanced precursor compounds allows breeders to develop lines whose aromatic character improves or stabilizes over time rather than degrading.