sesquiterpene


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Related to sesquiterpene: Terpenes, Sesquiterpenoids

sesquiterpene

(ˌsɛskwɪˈtɜːpiːn)
n
(Elements & Compounds) any of certain terpenes whose molecules contain one and a half times as many atoms as a normal terpene. Formula: C15H24
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Iqbal et al., "The anticancer, antioxidant and antimicrobial properties of the sesquiterpene [beta]-caryophyllene from the essential oil of Aquilaria crassna," Molecules, vol.
Ishikawa, "Insecticidal sesquiterpene from Alpinia oxyphylla against Drosophila melanogaster" Journal of Agricultural and Food Chemistry, vol.
STM is a sesquiterpene lactone compound present in various plant species such as Inula helenium, Inula japonica [12], Magnoliagrandiflora L.
Essential oils may contain antibacterial monoterpene alcohols or phenylpropanes, stimulating monoterpene hydrocarbons, calming esters or aldehydes, irritating phenols, stimulating ketones, anti-inflammatory sesquiterpene alcohols, antiallergenic sesquiterpene hydrocarbons, and expectorant oxides.
For example, various components such as sesquiterpene coumarins, terpene alcohols and other sesquiterpene derivatives such as conferone (Fig.
Most oil contained significantly higher monoterpenes than sesquiterpene, except oil from medium depth peatland where amount of sesquiterpenes slightly higher (38.94% compare with 38.36% monoterpene) (Table 3).
It is also said to, "allay any distressing sensitiveness to pain".(24) The 17th Century English herbalist Culpeper wrote of the effectiveness of this herb for headache and uterine disorders.(25) The active principles are noted to include one or more of the sesquiterpene lactones, including parthenolide, which is the main sesquiterpene lactone in feverfew.(26) Other potentially active constituents include flavonoid, glycosides and pinenes.
hysterophorus responsible for ABCD are sesquiterpene lactones (SLs) consisting of a lactone ring attached to a sesquiterpene.
Keywords: Agarwood extracts; Aromatic compound; Chromone; Gaharu; GC-MS; Monoterpene; Sesquiterpene; Sterol
Rainer (%) (%) Monoterpene Triciclene 10.04 -- 926 926 [alpha]-Pinene 13.86 7.37 933 939 Camphene 1.33 18.10 947 953 Sabinene 1.96 -- 971 976 [beta]-Pinene 1.83 8.71 976 980 Ortho cimene 1.93 -- 1021 1022 Limonene 1.07 -- 1027 1031 Sesquiterpene [delta]-Elemene -- 1.15 1337 1339 [beta]-Elemene -- 1.69 1391 1391 Longifolene -- 5.64 1399 1402 (Z)-Caryophyllene 16.86 14.46 1405 1404 (E)-CaryophyUene 29.29 28.71 1418 1418 [alpha]-Humulene 3.06 4.41 1445 1454 [gamma]-Himachalene -- 2.96 1476 1476 [gamma]-Muurolene 7.54% -- 1475 1477 Monoterpene 32.02% 34.18% -- -- Sesquiterpene 56.75% 59.02% -- -- TOTAL 88.77% 93.2 -- -- (*) ri--retention index of the sample (**) ri--retention index of the literature (adams, 2007).
In addition, we performed chemical analysis of the volatile emissions from lychee to determine how its sesquiterpene composition compares to that from known lauraceous hosts.