Extractuaion ntawm tus nquag Carotene muaj
Cog yam muaj (carotene) yog ib tug carotenoid extraction Wakenroer rau ntawm carrots 1931 xim. Ntau natural khoom xws li zaub, qos yaj ywm qab zib, carrots, zaub ntsuab, txiv ntaub ntoo, txiv nkhaus taw, lwm yam, muaj ntau nyob rau hauv β-carotene, uas yog cov lus qhia ntau tshaj plaws hauv carrots. Carotene α, β, γ thiab lwm yam isomers, uas β-carotene ntau tshaj ntawd. Tom qab World Health Organization muaj lub siab tias: β-carotene yog ib cov uas pheej los tiv thaiv oxidants. Nws yuav tiv thaiv thiab tua radicals dawb uas tsuag mus thaum metabolism hauv hauv vivo physiological, yog cov lusteb ntawm cov pa dawb radicals "nemesis."
Cov kev ua ntawm β-carotene
Β - carotene tiv thaiv tej kom kuv pom, los tiv thaiv cov mob kheesxaws, mob cancer los tiv thaiv, los tiv thaiv kev laus, kev tiv thaiv thiab kho los ntawm cataract, tawg los tiv thaiv ua rau tib neeg lub cev thiab txhawb kev tiv thaiv cov hauj lwm zoo yeej paub, lub teb chaws tiag FAO uake thiab World Health Organization khoom additives uas tsis yog mob toxic, ruaj ntseg thiab zoo zaub mov additives pom zoo. Β - carotene mis C40H56 molecular luj ntawm 536.88, β-carotene tam sim no nyob rau hauv tus qauv ntawm tus plurality ntawm conjugated muab ob npaug rau bonds, tus polyene lawm tab sis cov. Β - carotene ntshav los yog liab crystalline hmoov muaj ib me ntsis tsis hnov tsw los sis tsw phem lub teeb, cua kub, cua yuav cuam tshuam dab tsi, cov khoom zog thiab xim yuav ploj mus. Soluble carbon disulfide, roj av ether, benzene, chloroform; suab insoluble ethanol, dej, kua qaub, alkalis. Β - carotene lub cev ntawm tej khoom xws li cov organic kuab extraction, supercritical dej CO2 extraction, extraction ntsev uas algae, txoj kev microbial fermentation. Txujci organic kuab extraction: β-carotene-nplua nuj organic hnyav muaj nyob rau ntawm cov carrots ntuj cog, xibtes, buckthorn hiav txwv thiab nroj tsuag rau extract β-carotene.
Rau txoj kev extraction β-carotene
1.kheev siv organic hnyav yog anhydrous ether thiab roj av ether. Tab sis siv cov kuab organic kuab tshuaj tej zaum yuav yog nyob rau lub txawv muaj ntau seem ntawm tej kuab paug thiab yooj yim zom ua dua tshiab.
2.supercritical dej CO2 extraction: xyoos dhau los no coob tus cov ntaub ntawv qhia hais tias siv cov supercritical CO2 dej extraction extraction β-carotene β-carotene yuav heev ua kom qhov twg extraction, muaj extraction siab efficiency, txheej txheem ceev, huv huv, yooj yim, extraction taw tau cov zoo cov ntshiab saj. Dunaliella extraction: Dunaliella algae extract β-carotene ntawm ib cheeb tsam loj hauv sau qoob. 3.Dunaliella extraction yog raug cuam tshuam los ntawm lwm qhov chaw kawm li, yuav tsum muaj Salt Lake teb yuav tsum tau ib lub sij hawm ntev uas kub kub thiab muaj zog hnub ci li seawater mus kuaj seb puas yuav tsum tau muaj tshaj 10% ntawm cov siab ntsev concentration. 4.Microbial fermentation: microbial fermentation tshuab yog kev siv ntawm haiv microbial mus ncu kuaj kab mob, β-carotene synthesis hauv lub cev, thiab ces cov tug kab mob no cais tawm ntawm lub cev kom tau ib txoj kev ntawm β-carotene.
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