Extraction Supercritical Carbon Dioxide Extraction
An introduction to supercritical CO2 extraction, critical temperature and pressure, its history, and the advantages and limitations described for fragrance materials.
Extraction
Extraction 
Extraction Steam Distillation
How steam distillation is used in perfumery, including hydrodistillation, essential-oil separation, scented waters and the source’s two-stage process.
Extraction Solvent Extraction
How solvent extraction produces concretes, resinoids and absolutes, with an overview of its history, processing stages and use in perfumery.
Extraction Enfleurage: Cold and Hot Methods
The history of cold and hot enfleurage, how scented fats are processed, and modern approaches developed by Robertet, MANE and IFF’s LMR.