Post Harvest Oxidation

Post-harvest oxidation refers to the biochemical processes that occur in cannabis plant material after harvest, where exposure to oxygen triggers enzymatic browning and darkening of plant tissues. This phenomenon involves the oxidation of chlorophyll, cannabinoids, and other compounds, which can alter the final color, aroma profile, and chemical composition of dried flower. The degree of oxidation is influenced by factors including humidity, temperature, light exposure, and the duration between harvest and full desiccation. Understanding these processes is important for breeding programs and cultivation techniques aimed at preserving desired phenotypic traits. Breeders and processors often monitor post-harvest conditions to document how specific genetics respond to oxidative stress and environmental variables.

Breeders track oxidation rates across different cultivars to identify genetic markers associated with antioxidant production and cellular stability. Strains showing resistance to rapid oxidative degradation may offer advantages for storage longevity and phenotype consistency in seed banking and preservation programs.