Limonene Degradation

Limonene degradation refers to the chemical breakdown of limonene, a prevalent monoterpene in cannabis, through oxidation, heat exposure, and storage conditions. Fresh cannabis flowers typically exhibit high limonene concentrations, but over time—especially under light, oxygen, and warm temperatures—limonene converts into secondary compounds including carvone, carveol, and other oxidative byproducts. This degradation pathway is significant in breeding and preservation contexts, as it directly affects the terpene profile stability of harvested material. Researchers and breeders monitor limonene retention rates to understand post-harvest chemistry and develop storage best practices. The study of limonene degradation also informs decisions about drying, curing, and packaging methods that preserve volatile terpene fractions.

Breeders working on cultivar stability and shelf-life characteristics track limonene degradation rates as a marker of terpene robustness. Understanding which genetic backgrounds produce more stable limonene profiles helps inform selection for cultivars intended for long-term storage or processing applications.