Supercritical extraction (SFE) thiab subcritical fluid extraction (SUBE) technology

SFE thev naus laus zis yog qhov sib txawv ntawm cov txheej txheem tshem tawm cov kuab tshuaj ib txwm muaj thiab muaj qhov zoo ntawm kev nyab xeeb siab, kev xaiv zoo, ceev ceev extraction ceev, thiab tsis muaj cov kuab tshuaj residue. SFE siv cov kua dej ntau tshaj qhov ntsuas kub thiab siab ua ib qho extractant. Qhov kub thiab txias yog qhov siab. CO2 feem ntau yog siv los ua cov kuab tshuaj rau kev rho tawm cov khoom tsis muaj polar lossis tsis muaj zog polar xws li lipids, tab sis cov polarity ntawm cov kuab tshuaj kuj tuaj yeem hloov kho los ntawm kev ntxiv cov kuab tshuaj uas tsim nyog; SUBE siv cov kuab tshuaj hauv qab qhov kub thiab txias tseem ceeb ua cov khoom siv extractant. Raws li lub hauv paus ntsiab lus uas zoo sib xws cov organic teeb meem dissolves nyob rau hauv tib yam, lub hom phiaj cov khoom nyob rau hauv cov ntaub ntawv raw yog pauv mus rau cov kua extractant los ntawm cov txheej txheem molecular diffusion thaum lub sij hawm soaking, thiab ces cov extractant thiab lub hom phiaj cov khoom yog sib cais los ntawm kev txo siab evaporation. . Qhov kub thiab txias yog qhov qis, thiab cov kuab tshuaj feem ntau yog propane, butane, dimethyl ether lossis dej. Yog li ntawd, kev xaiv ntawm ob tuaj yeem ua tau raws li qhov polarity thiab thermal rhiab heev ntawm lub hom phiaj cov khoom yuav raug rho tawm. Siv ethanol los hloov cov dej subcritical kom rho tawm curcumin tuaj yeem ua rau kom cov kuab tshuaj curcumin nce ntxiv thiab tiv thaiv nws cov thermal degradation; Zoo sib xws, ntxiv cov polar co-solvents thaum lub sij hawm supercritical CO2 extraction tuaj yeem rho tawm thiab cais cov polar tshuaj xws li flavonoids thiab amino acids. Lefebvre et al. xaiv cais rosmarinic acid, carnosic acid thiab chlorophyll los ntawm rosemary nplooj los ntawm kev tswj SFE tsis; Thaum SFE siv ua ke nrog SUBE, qhov kev tshem tawm tuaj yeem txhim kho ntxiv. Piv txwv li, thaum Kamchonemenukool et al. txuas ntxiv siv supercritical CO2 extraction thiab subcritical liquefied dimethyl ether extraction rau extract -oryzanol los ntawm nplej bran ncuav mog qab zib, txij li thaum CO2 tshem tawm lwm yam tsis-polar tebchaw thaum thawj extraction, -oryzanol tau yooj yim yaj los ntawm liquefied dimethyl ether thaum lub sij hawm thib ob extraction, thiab cov muab rho tawm. -oryzanol cov ntsiab lus tau siab dua li ntawm cov txheej txheem ib txwm ua thiab lwm txoj hauv kev ua ke, ncav cuag 8128.51 mg/100 g.