Volatile Compound Screening

Volatile Compound Screening refers to the analytical process of identifying and quantifying aromatic and flavor-active molecules in cannabis plant material. This methodology examines compounds such as monoterpenes, sesquiterpenes, and other volatile organic compounds (VOCs) that contribute to strain aroma profiles and chemical expression. Screening typically employs gas chromatography (GC) or gas chromatography–mass spectrometry (GC-MS) to separate and identify specific molecules. The practice emerged as breeding became more sophisticated and breeders sought objective data beyond visual or olfactory assessment. Modern seedbanks and cultivators often use volatile compound analysis to document chemotype variation within a strain family.

Breeders integrate volatile compound screening data into selection protocols to stabilize desirable aroma profiles across generations and to identify novel chemotype combinations. This analytical framework allows reproducible phenotype documentation across crosses and helps breeders understand which genetic backgrounds produce consistent terpene ratios.