Methylcellulose yog ib qho khoom noj khoom haus ntau. Nws yog tsim los ntawm ntuj cellulose los ntawm kev hloov tshuaj lom neeg. Nws muaj kev ruaj ntseg zoo, gelling thiab thickening zog thiab yog siv dav hauv kev lag luam khoom noj. Raws li cov khoom siv hloov kho, nws txoj kev nyab xeeb hauv cov zaub mov tau muaj kev txhawj xeeb ntev.
1. Cov khoom thiab kev ua haujlwm ntawm methylcellulose
Cov qauv molecular ntawm methylcellulose yog nyob ntawm qhovβ-1,4-glucose unit, uas yog tsim los ntawm kev hloov qee pawg hydroxyl nrog methoxy pawg. Nws yog soluble nyob rau hauv dej txias thiab muaj peev xwm tsim ib tug reversible gel nyob rau hauv tej yam kev mob. Nws muaj cov thickening zoo, emulsification, ncua kev kawm ntawv, stability thiab dej tuav cov khoom. Cov haujlwm no ua rau nws siv dav hauv qhob cij, pastries, dej haus, khoom noj siv mis, khoom noj khov thiab lwm yam. Piv txwv li, nws tuaj yeem txhim kho qhov kev ntxhib los mos ntawm khob noom cookie thiab ncua kev laus; Hauv cov khoom noj khov, nws tuaj yeem txhim kho qhov khov-thaw tsis kam.
Txawm hais tias nws muaj ntau yam haujlwm, methylcellulose nws tus kheej tsis nqus los yog metabolized hauv tib neeg lub cev. Tom qab noj, nws yog tsuas yog tawm los ntawm lub plab zom mov nyob rau hauv ib tug undecomposed daim ntawv, uas ua rau nws ncaj qha cuam tshuam rau tib neeg lub cev tshwm sim txwv. Txawm li cas los xij, tus cwj pwm no kuj tau ua rau tib neeg muaj kev txhawj xeeb tias nws qhov kev noj qab haus huv mus ntev yuav cuam tshuam rau txoj hnyuv.
2. Kev soj ntsuam tshuaj lom neeg thiab kev tshawb fawb txog kev nyab xeeb
Ntau cov kev tshawb fawb toxicological tau pom tias methylcellulose muaj biocompatibility zoo thiab tsis muaj tshuaj lom. Cov txiaj ntsig ntawm kev kuaj mob toxicity tau pom tias nws cov LD50 (qhov nruab nrab ntawm cov neeg tuag taus) ntau dua li cov khoom siv hauv cov khoom noj khoom haus, uas qhia tau tias muaj kev nyab xeeb siab. Hauv kev sim tshuaj toxicity mus ntev, nas, nas thiab lwm yam tsiaj tsis pom muaj qhov cuam tshuam loj heev hauv kev noj zaub mov mus sij hawm ntev, nrog rau kev pheej hmoo xws li carcinogenicity, teratogenicity thiab kev ua me nyuam toxicity.
Tsis tas li ntawd, cov nyhuv ntawm methylcellulose ntawm tib neeg txoj hnyuv kuj tau kawm dav. Vim tias nws tsis zom thiab nqus tau, methylcellulose tuaj yeem ua rau cov quav ntim, txhawb plab hnyuv peristalsis, thiab muaj qee yam txiaj ntsig hauv kev txo cov cem quav. Nyob rau tib lub sijhawm, nws tsis yog fermented los ntawm txoj hnyuv, txo qhov kev pheej hmoo ntawm flatulence lossis mob plab.
3. Cov kev cai thiab cov qauv
Kev siv cov methylcellulose ua cov khoom noj ntxiv yog nruj tswj hwm thoob ntiaj teb. Raws li kev soj ntsuam ntawm Pawg Kws Tshaj Lij Tshaj Lij Tshaj Lij rau Khoom Noj Khoom Noj (JECFA) raws li Lub Koom Haum Saib Xyuas Khoom Noj thiab Kev Ua Liaj Ua Teb ntawm United Nations (FAO) thiab Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb (WHO), qhov kev tso cai txhua hnub (ADI) ntawm methylcellulose yog "tsis tau teev tseg. ", qhia tias nws muaj kev nyab xeeb los siv nyob rau hauv qhov pom zoo noj.
Hauv Tebchaws Meskas, methylcellulose tau teev npe raws li feem ntau lees paub tias muaj kev nyab xeeb (GRAS) tshuaj los ntawm US Food and Drug Administration (FDA). Hauv European Union, nws raug cais raws li cov khoom noj ntxiv E461, thiab nws qhov kev siv ntau tshaj plaws hauv cov khoom noj sib txawv tau qhia meej meej. Hauv Suav teb, kev siv methylcellulose kuj tau tswj hwm los ntawm "National Food Safety Standard Food Additive Usage Standard" (GB 2760), uas yuav tsum tau tswj nruj me ntsis raws li cov khoom noj.
4. Kev saib xyuas kev nyab xeeb hauv kev siv tswv yim
Txawm hais tias tag nrho kev nyab xeeb ntawm methylcellulose yog qhov siab, nws daim ntawv thov hauv cov zaub mov tseem yuav tsum tau them sai sai rau cov ntsiab lus hauv qab no:
Dosage: Kev sib ntxiv ntau dhau tuaj yeem hloov qhov kev ntxhib los mos ntawm cov zaub mov thiab cuam tshuam rau kev hnov lus zoo; Nyob rau tib lub sijhawm, kev noj ntau dhau ntawm cov khoom siv fiber ntau tuaj yeem ua rau tsam plab lossis mob plab me me.
Lub hom phiaj pej xeem: Rau cov tib neeg uas tsis muaj zog plab hnyuv ua haujlwm (xws li cov neeg laus lossis cov menyuam yaus), kev siv tshuaj ntau ntawm methylcellulose tuaj yeem ua rau plab hnyuv hauv lub sijhawm luv, yog li nws yuav tsum tau xaiv nrog ceev faj.
Kev sib cuam tshuam nrog lwm cov khoom xyaw: Hauv qee cov khoom noj, methylcellulose tuaj yeem muaj kev sib koom ua ke nrog lwm cov tshuaj ntxiv lossis cov khoom xyaw, thiab lawv cov teebmeem sib xyaw yuav tsum tau txiav txim siab.
5. Cov ntsiab lus thiab Outlook
Feem ntau,methylcellulose yog ib qho khoom noj muaj kev nyab xeeb thiab muaj txiaj ntsig zoo uas yuav tsis ua rau muaj kev phom sij loj rau tib neeg kev noj qab haus huv nyob rau hauv ntau yam kev siv. Nws cov khoom tsis-absorbable ua rau nws ruaj khov nyob rau hauv lub plab zom mov thiab tuaj yeem nqa qee yam txiaj ntsig kev noj qab haus huv. Txawm li cas los xij, txhawm rau ua kom nws muaj kev nyab xeeb ntxiv rau kev siv mus ntev, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas cov kev tshawb fawb txog tshuaj lom neeg thiab cov ntaub ntawv siv tau, tshwj xeeb tshaj yog nws cuam tshuam rau cov neeg tshwj xeeb.
Nrog rau txoj kev loj hlob ntawm kev lag luam khoom noj khoom haus thiab kev txhim kho ntawm cov neeg siv khoom xav tau cov khoom noj khoom haus zoo, qhov kev siv ntawm methylcellulose tuaj yeem nthuav dav ntxiv. Nyob rau hauv lub neej yav tom ntej, kev siv tshiab tshiab yuav tsum tau tshawb nrhiav nyob rau hauv qhov chaw ntawm kev ua kom muaj kev nyab xeeb ntawm zaub mov kom coj tus nqi ntau dua rau kev lag luam khoom noj.
Post lub sij hawm: Dec-21-2024