aromatic-plants
Aromatic plants produce and store volatile organic compounds — primarily terpenes and phenolics — in specialized structures such as glandular trichomes, yielding the essential oils that give these species their characteristic scents. Studying the biosynthesis, regulation, and ecological roles of these compounds is central to plant science, as they mediate pollinator attraction, herbivore defense, and stress responses. Research in this field also bridges fundamental biochemistry with applied goals in agriculture, pharmacology, and crop improvement.
open_in_new WikipediaPubMed · 2026-04-30
Researchers compared the chemical profiles of essential oils and hydrosols — the aromatic water left over after steam distillation — from seven common herb species in the mint family. They found that hydrosols are chemically distinct from essential oils, carrying more water-friendly aromatic compounds that make them useful ingredients in their own right.
Hydrosols from all seven herb species showed a higher relative proportion of polar, water-soluble oxygenated compounds (such as alcohols and oxides) compared to their matched essential oils.
Essential oils were dominated by less polar, highly volatile compounds including monoterpene hydrocarbons and certain esters and ketones — categories less prominent in hydrosols.
Across all seven Lamiaceae species tested — including lavender, peppermint, oregano, and three sage varieties — oxygenated monoterpenes were the dominant chemical class in both distillation products.
