Cov khoom no yog 2-hydroxypropyl ether methyl cellulose, uas yog cov khoom semi-synthetic. Nws tuaj yeem tsim los ntawm ob txoj kev: (1) Tom qab kho cov paj rwb linters lossis cov ntoo pulp fibers nrog caustic soda, lawv tau sib xyaw nrog chloromethane thiab epoxy Propane reacts, refined thiab pulverized kom tau txais nws; (2) Siv qib tsim nyog ntawm methyl cellulose los kho nrog sodium hydroxide, react nrog propylene oxide nyob rau hauv qhov kub thiab txias thiab siab siab mus rau qib zoo tagnrho, thiab refine nws. Qhov hnyav molecular yog los ntawm 10,000 txog 1,500,000.
★ Lub tswv yim ntuj ntshiab, txhim kho kev zom zaub mov thiab kev nqus.
★ Cov dej tsawg, 5% -8%. Muaj zog nqus dej noo, cov ntsiab lus tsis yooj yim rau agglomerate, thiab lub plhaub capsule tsis yooj yim rau deform, ua brittle, thiab harden.
★ Tsis muaj kev pheej hmoo ntawm kev sib txuas lus, tsis muaj kev sib cuam tshuam, kev ruaj khov siab, txij li hydroxypropyl methylcellulose yog cellulose derivative, tsis muaj kev pheej hmoo ntawm kev sib txuas lus ntawm cov protein hauv gelatin.
★ Cov kev cai tsawg rau cov xwm txheej cia khoom:
Nws yuav luag tsis tawg yooj yim hauv qhov chaw noo noo tsawg, muaj kev ruaj khov zoo ntawm qhov kub siab, thiab lub tshuaj ntsiav tsis deform.
★ Cov qauv sib xws thiab kev sib raug zoo:
Siv tau rau cov qauv tshuaj hauv tebchaws, cov duab, qhov loj me, tsos thiab txoj kev sau yog sib npaug rau cov tshuaj gelatin hollow, thiab tsis tas yuav hloov cov khoom siv thiab qhov chaw.
★ Tsis yog los ntawm tsiaj txhu, tsis muaj kev pheej hmoo ntawm cov tshuaj hormones loj hlob lossis cov tshuaj uas tshuav nyob hauv lub cev tsiaj txhu.
Hydroxypropyl methylcelluloseCov tshuaj ntsiav khoob txawv ntawm cov tshuaj ntsiav khoob gelatin ib txwm muaj. Lawv yog hydroxypropyl methylcellulose (HPMC) ua los ntawm ntoo pulp. Ntxiv rau qhov zoo ntawm lub tswv yim ntuj ntshiab, hydroxypropyl methylcellulose cov tshuaj ntsiav khoob kuj tseem tuaj yeem txhim kho kev nqus thiab zom cov protein, rog thiab carbohydrates, thiab muaj cov txiaj ntsig kev siv tshuab thiab cov yam ntxwv uas cov tshuaj ntsiav gelatin hollow ib txwm muaj tsis muaj. Nrog rau kev txhim kho tas mus li ntawm tib neeg txoj kev paub txog kev saib xyuas tus kheej, kev txhim kho kev noj zaub mov tsis noj nqaij, kev tshem tawm cov kab mob nyuj vwm, kab mob ko taw thiab qhov ncauj rau tib neeg kev noj qab haus huv, thiab kev cuam tshuam ntawm kev ntseeg thiab lwm yam, cov khoom lag luam tshuaj ntsiav ntuj thiab cog ntoo yuav dhau los ua cov thawj coj rau kev txhim kho kev lag luam tshuaj ntsiav. .
Lub sijhawm tshaj tawm: Plaub Hlis-28-2024