Cov roj tseem ceeb yog qhov tsis muaj zog, cov ntxhiab cov metab me me metabolites rho tawm ntawm cov nroj tsuag. Lawv yog cov roj pleev cov roj uas muaj ua los ntawm kev yooj yim, qis - molecular {{2} Lub taub hau hnyav}. Cov roj tseem ceeb yog feem ntau los ntawm nplooj, ceg, peels, thiab noob ntawm cov nroj tsuag ntawm cov tsev neeg xws li Lauraceae, Lamiaceae, Rutaceae, thiab Myrtaceae. Lawv tau siv dav hauv cov tshuaj, tshuaj tua kab, cov tshuaj tua kab mob tua kab mob, cov zaub mov ua zaub mov noj, thiab pleev tshuaj pleev ib ce txhua hnub. Cov roj tseem ceeb yog cov nyom, muaj ntawm ntau dua ib puas feem, txawm tias qee tus muaj ntau pua lossis txawm tias ntau txhiab leej.
Thawj qeb yog Terpenes, thawj hom ntawm cov roj tseem ceeb. Raws li lawv cov qauv hauv lawv cov qauv, lawv tuaj yeem muab faib ua peb pawg: xws li lavender, myrcene, cyclocitral, camphor, thiab anisol; sesquiterpenes, xws li Finalise, eucalyptol, cadinene, thiab patchouliol; thiab diterpenes, xws li oleocanthal.
Qeb ob yog cov duab uas muaj ntxhiab, thib ob tsuas yog kom terpenes hauv cov roj tseem ceeb. Cov no suav nrog kev txiav txim siab terpene xws li thymol thiab curcumene; Lwm qeb yog phenylpropanoid derivatives, xws li cinnamalhthyde hauv cinnamon thiab phenymethyl cawv hauv cov roj sawv sawv.
Lub qeb thib peb yog cov kev sib xyaw ua ke, xws li isovaleralerhayde thiab txiv qaub cov roj tseem ceeb, thiab ethyl acetate nyob rau hauv hiav txwv buckthorn roj.
Cov qeb plaub yog leej faj - thiab nitrogen -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Nyob rau hauv cov txiv qaub dub, thiab pyrroles nyob rau hauv txiv qaub.
Feem ntau cov nroj tsuag tseem ceeb roj muaj cov tshuaj tua kab mob muaj zog. Vim yog lawv lub ntuj thiab muaj kuab paug {1} Cov tuam txhab pub dawb, qee cov tuam txhab hauv cov chaw tsim khoom hauv cov tshuaj tua kab mob hauv cov chaw pej xeem.
