In alternative embodiments, provided are methods for extracting essential oils, phytochemicals and pharmaceutically active components such as terpenes, phytochemicals and pharmaceutically active components from biomass or any plant materials. In alternative embodiments, provided are methods for making synthetic formulations comprising biomass-derived plant materials using essential oils, phytochemicals and pharmaceutically active components isolated by methods as provided herein. In alternative embodiments, provided are synthetic biomass-derived formulations and plant materials using essential oils, phytochemicals and pharmaceutically active components isolated by methods as provided herein.