Post Harvest Enzyme Activity

Post-harvest enzyme activity refers to the biochemical processes that occur in cannabis plant material after harvest, involving oxidative and hydrolytic enzymes that break down cellular structures and modify compounds. Key enzymes include polyphenol oxidase (PPO), peroxidase (POX), and lipase, which are activated when cell membranes are disrupted during drying and curing. These enzymatic processes can modify cannabinoid profiles, degrade chlorophyll, develop new aromatic compounds, and influence final product color and aroma complexity. Lineage records and cultivation documentation increasingly track how different genetic backgrounds respond to post-harvest processing conditions. Understanding enzyme activity is essential for breeders developing cultivars with predictable curing characteristics and color stability.

Breeders working in this category select for plant genetics that support desired post-harvest enzyme responses—faster chlorophyll breakdown for cleaner color, controlled PPO activity for aroma development, or enzyme profiles compatible with specific curing protocols. Cultivars from slower-drying lineages or those with higher basal enzyme activity often show distinct flavor maturation patterns duri