Post Harvest Enzymatic Activity

Post-harvest enzymatic activity describes the chemical changes that occur in cannabis plant material after harvest, driven by naturally occurring enzymes. During drying and curing, enzymes continue breaking down chlorophyll, converting amino acids, and modifying terpene and cannabinoid profiles. These biochemical processes influence the final aromatic character, flavor development, and chemical composition of the dried product. Breeders and cultivators recognize that enzymatic activity during this phase significantly shapes perceived aroma complexity, often contributing herbal, sweet, earthy, or spice notes that weren't dominant in fresh material. Understanding post-harvest enzyme function is central to breeding programs focused on flavor expression and storage stability.

Breeders select for plant genetics that support favorable enzymatic profiles during post-harvest processing, as enzyme efficiency affects terpene maturation and cannabinoid stability. Cultivars with specific enzyme expression patterns often show more consistent aroma development across different curing timelines.