terpenes
31isoprenoid — /uy seuh pree noyd/, adj. Chem. pertaining to, derived from, or similar to isoprene. [1955 60; ISOPRENE + OID] * * * or terpene Class of organic compounds made up of two or more structural units derived from isoprene. Isoprene is a five carbon… …
32Aroma compound — Fragrance redirects here. For other uses, see Fragrance (disambiguation). Odorants redirects here. For the punk rock band, see The Odorants. Not to be confused with Aromaticity. An aroma compound, also known as odorant, aroma, fragrance or flavor …
33Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …
34DIÈNES ET POLYÈNES — Les diènes et polyènes sont des hydrocarbures dont la molécule renferme deux ou plusieurs liaisons éthyléniques. La nature n’en fournit que d’assez rares représentants qui sont apparentés aux terpènes. Encore, dans ce domaine, seuls quelques… …
35Volatile organic compound — Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary, room temperature conditions. Their high vapor pressure results from a low boiling point, which causes large numbers of molecules to evaporate or… …
36Air freshener — A basic gel fragrance air freshener. Air fresheners are consumer products used in homes or commercial products used in restrooms that typically emit fragrance. There are two broad air freshener categories: continuous action and instant action.… …
37Carvone — Chembox new Name = Carvone ImageFile = Carvone.png ImageName = Carvone ImageFile1 = S carvone stickModel.png ImageSize1 = 180px IUPACName = 2 methyl 5 (prop 1 en 2 yl) cyclohex 2 enone OtherNames = Δ6:8(9) p menthadien 2 one 1 methyl 4… …
38Copaiba — Copaifera langsdorfii in a park in São Paulo Brazil. Copaiba is a stimulant oleoresin obtained from the trunk of several pinnate leaved South American leguminous trees (genus Copaifera). The thick, transparent exudate varies in color from light… …
39Allelopathie — Allélopathie L’allélopathie est l ensemble des interactions biochimiques directes ou indirectes, positives ou négatives, d’une plante sur une autre (micro organismes inclus) au moyen de métabolites secondaires tels les acides phénoliques, les… …
40Allélopathie — L’allélopathie est l ensemble de plusieurs interactions biochimiques directes ou indirectes, positives ou négatives, d’une plante sur une autre (micro organismes inclus) au moyen de métabolites secondaires tels les acides phénoliques, les… …
