Dab lub Phytosterol esters ?
Phytosterols thiab phytosterol esters feem ntau li ntawm fatty acids uas tsim los ntawm cov tshuaj tiv thaiv transesterification los yog esterification. Vim sterols thiab fatty acids uas yuav siv tau los manufacture tus phytosterol esters yog xav paub ntxiv, tej zaum yuav muab tau ntau hom txawv thiab khoom uas phytosterol esters, phytosterol esters muaj peb lub ntsiab β-sitosterol ester, stigmasterol ester, campesterol ester. Sterol esters nyob rau hauv tib neeg lub cev yuav tau txia mus ua sterols thiab fatty acids, no, qhov physiological zog xws li phytosterols thiab fatty acid feem muaj ob lub zog physiological, muaj cov qub dawb phytosterols kom ntshav tag nrho roj thiab lipoprotein roj nyhuv, tej txoj kev zoo twb tsis ntom.
Phytosterols crystalline hauv daim no ob tug teeb meem nyob rau hauv daim ntawv thov, ib daim ntawv crystalline nyob hauv tib neeg lub cev solubility and bioavailability kev txom nyem kuj, li no ua rau koob siab thaum kho hyperlipidemia thiab cov consequent muaj phytosterols hyperlipidemia, namely ntshiab cog sterol ntau lawm ho ntau zog. Ntawm qhov kev tes, tus solubility uas cog sterols nyob rau hauv roj yog tsawg, cov muaj ntaub ntawv rau cov zaub mov.
Phytosterols muaj teeb meem loj lipid-tej nuj nqi, uas twb tau hais los ntawm kev tshawb fawb heev heev. Txawm li ntawd los, cog sterols tsis yaj hauv dej, solubility nyob rau hauv cov roj theem no tsuas siv heev, no disadvantage txwv cov ntaub ntawv. Xyoo, neeg muaj lawm ua rau phytosterols hloov nthuav txoj kab kev los ntawm daim ntaub ntawv. Abroad pib tshawb txoj kev phytosterols kev siv txij li lub ntxov Kwvyees li xyoo 1990, mus txog purification, cog sterols yog hloov tau tsim ntau yam khoom. Wherein lub phytosterols ua sterol esters esterified yog ib qhov tseem ceeb tshaj plaws txhais tau tias cov kev hloov kho. Esterification khoom ntawm sterol esters ua lipid-tej tej tau lug siv hauv qab rog, cov roj painting thiab mis nyuj khov thiab lwm yam tshuaj, thaum uas tsis siv cov emulsifiers. Cov khoom noj uas yuav muab ntxiv rau txhim kho kev noj haus tus nqi ntawm tsob nroj sterol ester, thiab uas tshwm rov rau tus thawj zoo nkauj ntawm cov khoom noj, uas tau txhab rau tau daim ntawv thov uas cog sterol esters heev.
Kom yooj yim rau kev siv ua noj, koj yuav tsum tau hloov rau daim cog sterols uas tshwm rov rau lub zog ntawm tsob nroj sterols premise physiological. Cov cog sterol fatty acid ester raws li no, nws heev pab txoj kev sterols fat-soluble cog, uas yuav muab ntxiv rau cov khoom noj uas muaj roj. Phytosterol esters hydrolysed los pancreatic lipase dawb daim ntawv ntawm cov roj uas txhaws taus sterol yog absorbed, uas yog qhov sib txawv dawb sterols thiab sterol ester ntawm cov metabolism hauv, li no muaj rau ib yam muaj nuj nqi physiological phytosterol ester phytosterols.
Kev siv
Lub npe nyob rau txoj kev noj cov nplua nuj nyob hauv tsob nroj tsis hnov tsw cawv yuav qab rog, ces sterols cog lug siv hauv cov khoom noj siv mis, cov khoom bakery, hnyuv ntxwm, roj zaub, kua txiv hmab txiv ntoo thiab lwm yam khoom. Netherlands, Belgium, teb chaws Aas Kiv, Fabkis, lub teb chaws Yelemees, li 13% ntawm cov tsev neeg muas zaub mov uas muaj cog nyob cawv esters, xws li tej kis, nyias cov ntaub qhwv, khoom uas siv mis nyuj thiab cov kua mis nyeem qaub. Nplua nuj nyob hauv tsob nroj sterol ester functionality tsaus chocolate tuav tsis tsuas kom neeg txhob roj ntau ntau nyob hauv tib neeg lub cev thiab nws noj haus, thiab piav thoob hlo yuav pauv tsis tau nws nyob tom qab 5 lub hlis uas cia sov li chav nyob. Ntxiv kib sitosterol Sibhawm, thiaj inhibit polymerization txog triglycerides, ua si ib antioxidant zoo. Ntxiv ib qhov nqi ntawm cov nroj tsuag nyob cawv pleev cheese, cheese kis uas lub muaj quas los nta, shear thiab viscosity, tej yam xws li muaj ho khees me ntsis lawm. Zaub nyob haus dej cawv thiab ib fatty acid rau daim ntawv phytosterol esters, muaj tau ntxiv rau ntau hom dej haus li ib qeb tshiab ntawm tej dej haus, xws li mob txo cov roj uas txhaws taus protein ntau tej dej. Thaum pov, tsuas yog suav teb Yiba phytosterols thiab phytosterol esters ua tus tshiab noj khoom, chaws ze li ntawm 20, yog cov European Union, lub teb chaws As Mes Lis Kas thiab Brazil yuav siv li ntawm cov kab kev los ntawm cov khoom noj khoom haus.
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