Daim ntawv thov ntawm supercritical kua extraction hauv cov zaub mov tsuas yog teeb meem ntawm 20 xyoo dhau los. Hauv kev ua khoom noj, CO2yog yuav luag ib txwm siv los ua kev rho tawm.
1. Kev rho tawm cov roj zaub (cov noob taum pauv, paj noob hlis, cocoa, kas fes, xibtes, thiab lwm yam)
2. Kev rho tawm ntawm cov roj tsiaj (roj ntses, roj siab, thiab lwm yam)
3. De-caffeine los ntawm tshuaj yej thiab kas fes, extract hops (tuaj yeem tshem tawm cov pa phem)
Tshuaj yej muaj nplua nuj nyob hauv caffeine, uas ua kwv yees li 2% rau 5% ntawm qhov teeb meem qhuav. Caffeine yog ib qho alkaloid uas muaj ntau cov teebmeem ntawm cov tib neeg cov metabolism. Qee qhov muaj txiaj ntsig, qee qhov tsis yog qhov tsis tsim nyog. Kev haus dej haus muaj caffeine ntau dhau nws yuav cuam tshuam koj kev noj qab haus huv. Qee tus neeg tuaj yeem siv tau' t sawv nws txawm tias lawv noj khoom qab zib tsawg heev.
Thaum ntxov li xyoo 1950, decaffeinated dub tshuaj yej tshwm. Thaum xub thawj, cov organic solvent method tau siv. Cov qauv no yuav hloov cov xim, aroma, saj, thiab cov duab ntawm cov tshuaj yej nplooj, tshwj xeeb tshaj yog cov kev tso tseg ntawm cov organic solvent seem. Nrog kev kawm tob thiab tshawb cov tshuaj muaj kua supercritical extract technology, tib neeg tig mus rau supercritical CO2tshuab thev naus laus zis los ua cov tshuaj yej dub tsis sib xyaw.
4. Noj zaub mov kom tsis muaj rog (tsis muaj roj nyeem, khoom noj kib thiab lwm yam)
5. Kev rho tawm ntawm cov txuj lom
6. Kev rho tawm ntawm cov nroj tsuag xim thiab kev txiav txim siab thiab deodorization ntawm ntau yam tshuaj yeeb dej caw. Qhov xwm ntawm supercritical CO2yog zoo ib yam li lub polarity ntawm n-hexane, yog li nws yog qhov tshwj xeeb tshaj yog rau cov roj-soluble Cheebtsam. Xws li β-carotene, capsaicin, Nicotiana tabacum, lutein thiab lwm yam. Tsis tas li ntawd, los ntawm kev siv cov khoom sib txawv, qhov polarity ntawm CO2tuaj yeem hloov tau, yog li nthuav cov ntau yam.