Volatile Fraction Analysis

Volatile Fraction Analysis (VFA) refers to the systematic identification and quantification of aromatic compounds that evaporate readily from cannabis plant material. This analytical approach isolates and measures terpenes, esters, aldehydes, and other low-boiling-point molecules that define a strain's sensory profile. VFA data is commonly used in breeding programs to track aromatic consistency across generations and to document chemical signatures within strain families. Laboratory techniques such as gas chromatography (GC) or headspace analysis generate VFA profiles that breeders reference when selecting parent plants. Understanding volatile fractions helps distinguish between chemotypes within nominally identical strains and informs preservation strategies for genetic libraries.

Breeders working in phenotype stabilization use VFA profiles as objective markers for selecting plants with target aromatic traits. Consistent volatile fraction composition across multiple generations helps establish reliable strain standards and supports outcrossing decisions when seeking to preserve or enhance specific aroma notes.