Terpene Chemistry

Terpene chemistry encompasses the volatile organic compounds (VOCs) that define cannabis aroma and flavor profiles. These hydrocarbons—produced naturally by the plant's trichomes—include over 200 documented compounds, with myrcene, limonene, pinene, and caryophyllene among the most prevalent. Terpene ratios and combinations vary significantly across cultivars and are influenced by genetics, growing conditions, harvest timing, and post-harvest handling. Understanding terpene profiles is foundational to cannabis genetics work, as breeders track these biochemical markers to stabilize cultivar phenotypes and document lineage authenticity. Terpene expression is heritable but environmentally responsive, making it both a selection tool and a variable that must be controlled in breeding programs.

Breeders leverage terpene profiling to identify and stabilize desirable chemotypes within breeding lines, using gas chromatography (GC) and other analytical methods to confirm offspring consistency. Terpene data also serves as a fingerprinting tool to verify strain authenticity and track genetic drift across generations.