Kev txhim kho thiab kev siv cov xim ntuj tau dhau los ua ib qho kev txhawj xeeb rau cov neeg ua haujlwm tshawb fawb thiab thev naus laus zis hauv ntau qhov kev lag luam.Tib neeg sim kom tau txais cov xim ntuj los ntawm ntau yam tsiaj thiab nroj tsuag cov peev txheej thiab tshawb nrhiav lawv cov haujlwm physiological kom txo tau thiab daws ntau yam teeb meem tshwm sim los ntawm cov xim hluavtaws.Cov txheej txheem rho tawm ntawm cov xim ntuj kuj tau hloov kho sai sai, thiab tam sim no cov tshuab sib cais membrane tau dhau los ua ib txoj hauv kev tseem ceeb ntawm cov xim ntuj extraction.
Kev sib cais ntawm daim nyias nyias muaj xws li plaub lub ntsiab ntawm cov txheej txheem hla-ntws membrane: microfiltration MF, ultrafiltration UF, nanofiltration NF, thiab thim rov qab osmosis RO.Kev sib cais thiab tuav kev ua tau zoo ntawm ntau daim nyias nyias yog qhov txawv ntawm qhov pore loj thiab molecular hnyav txiav tawm ntawm daim nyias nyias.Membrane filtration technology tau dav siv hauv tshuaj, dyes, zaub mov thiab kua txiv hmab txiv ntoo ua lag luam nyob rau sab hnub poob tsim teb chaws.Daim ntawv thov ntawm cov tshuab lim membrane hauv kev tsim cov pigments ntuj tuaj yeem txhim kho cov khoom tsim tawm ntawm cov xim ntuj, tshem tawm cov dyes theem nrab thiab me me molecular impurities, thiab txo cov nqi tsim khoom.Undoubtedly, membrane technology tau ua lub luag haujlwm tseem ceeb hauv kev sib sau cov xwm txheej ntawm cov lag luam hauv kev lag luam ntuj pigment, thiab tau ua tiav hauv qee qhov kev lag luam hauv kev lag luam ntuj pigment.
Nyob rau hauv cov txheej txheem pigment ntau lawm, tshwj xeeb tshaj yog rau cov kua pub nrog cov khoom tsis muaj concentration, piv nrog rau tag nrho cov filtration txoj kev, lub membrane sib cais ntaus ntawv siv tus ntoo khaub lig-flow filtration txoj kev zoo heev txo cov blockage ntawm daim nyias nyias vim lub cross-flow. cov khoom siv thiab kua, uas tuaj yeem txhim kho tus nqi pom.tus nqi.Tsis tas li ntawd, cov khoom siv membrane tuaj yeem ua kom tsis muaj menyuam nyob rau tib lub sijhawm, thiab tsis tas yuav teeb tsa lwm txoj kev ua kom tsis muaj menyuam thiab ua kom pom kev, thiaj li ua tiav lub hom phiaj ntawm kev yooj yim ntawm cov txheej txheem thiab txo tus nqi.
1. Microfiltration thev naus laus zis tuaj yeem lim tawm cov khoom tsis sib xws hauv cov xim ntuj tso tawm thiab cov impurities nrog cov txheeb ze molecular hnyav ntau dua li ob peb puas txhiab, xws li hmoov txhuv nplej siab, cellulose, zaub pos hniav, macromolecular tannins, macromolecular proteins thiab lwm yam impurities.
2. Ultrafiltration yog siv rau kev qhia meej ntawm cov xim uas tsim los ntawm fermentation, es tsis txhob siv txoj kev qhia meej ib txwm, nws tuaj yeem cuam tshuam macromolecular suspensions thiab proteins, thiab tso cai rau cov xim ntshiab ntshiab kom permeate los ntawm daim nyias nyias thiab nkag mus rau sab permeate.
3. Nanofiltration yog siv rau concentration / dewatering ntawm pigments nyob rau hauv chav tsev kub, feem ntau yog ua ke nrog los yog es tsis txhob ntawm evaporators.Thaum lub sij hawm pom, dej thiab qee qhov me me-molecule impurities (xws li citrinin hauv monascus) dhau los ntawm daim nyias nyias thaum cov xim xim tau khaws cia thiab muaj zog.
Nyob rau hauv xyoo tas los no, kev txhim kho thiab kev siv cov xim ntuj tsim tau sai heev.Txawm li cas los xij, kev tshawb fawb thiab kev loj hlob ntawm ntuj pigments tseem ntsib ntau yam teeb meem: qhov extraction tus nqi ntawm ntuj pigments yog tsawg, thiab tus nqi yog siab;pigment stability tsis zoo, thiab nws yog rhiab heev rau sab nraud tej yam kev mob xws li lub teeb thiab tshav kub;muaj ntau hom, thiab kev tshawb fawb thiab kev loj hlob tau tawg.Nrog rau kev txhim kho thiab txhim kho cov txheej txheem kev sib cais membrane, nws ntseeg tau tias nws yuav ua lub luag haujlwm tseem ceeb hauv kev rho tawm cov xim ntuj.Nyob rau hauv lub neej yav tom ntej, kev sib xyaw ua ke ntawm cov kua membrane sib cais tshuab thiab ntau yam tshiab thev naus laus zis yuav ua rau cov khoom tsim tawm ntawm ntuj pigments thiab txhim kho cov khoom zoo, txo cov nqi tsim khoom.
Lub sij hawm xa tuaj: Plaub Hlis-20-2022