Cov nroj tsuag capsules siv hauv peb cov khoom tsim los ntawm hydroxypropylmethylcellulose (HPMC), tseem hu ua hydroxypropylmethylcellulose. Tam sim no, yav dhau los, nws muaj peev xwm sau cov ntsiab lus ntawm daim ntawv lo:
Lwm cov khoom xyaw:cog capsules (cog fiber ntau thiab dej)
Tab sis tom qab ntawd FDA tau hloov cov kev cai sau npe kom xav tau cov kaus mom neeg tsis noj nqaij kom muaj npe raws li hydroxypropyl methylcellulose lossis hydroxypropyl methylcellulose
Yog li, nws yuav tsum raug sau tseg ua ntej tias hydroxypropyl methylcellulose phthalate (HPMCP) yog ib yam khoom sib txawv ntawm HPMC (hydroxypropyl methylcellulose lossis hydroxypropyl methylcellulose). Yog lawm, lo lus no coj lub ntiaj teb sib txawv.
Raws li cov lus qhia tshwj xeeb ntawm cov neeg tsis noj nqaij lub kaus mom tsim:
HPMC yog cov khoom cog uas yog ib daim ntawv purified ntawm cellulose muab rho tawm los ntawm ntoo pulp. Raws li Annex I ntawm EU Txoj Cai No. 1169/2011 ntawm kev muab cov ntaub ntawv qhia zaub mov rau cov neeg siv khoom, HPMC raug cais raws li "fiber" thiab txhais tau tias yog cov polymer ntawm cov dej sib txuas nrog peb lossis ntau dua monomer units, uas tsis yog zom los yog nqus hauv tib neeg txoj hnyuv.
Txawm li cas los xij, tam sim no txoj kev kuaj sim rau kev noj zaub mov fiber ntau, xws li AOAC 985.29, tsis raug kuaj HPMC raws li kev noj haus fiber ntau. Txawm li cas los xij, HPMC yog cov khoom noj uas muaj carbohydrate polymer, cov khoom noj muaj fiber ntau nrog cov txiaj ntsig zoo ntawm lub cev, uas tau lees paub los ntawm cov pov thawj tshawb fawb, thiab yog li ntawd tuaj yeem yeem tshaj tawm.
Rau cov uas tsis tau kawm chemistry ntau dhau lawm
Cellulose yog cov saw hlau uas tsim los ntawm carbon, hydrogen, thiab oxygen, feem ntau muaj ntau pua mus rau txhiab tus carbon, hydrogen, thiab oxygen chains ua ke.
Hydroxyl - txhais tau hais tias muaj cov pa oxygen thiab hydrogen txuas rau qhov chaw ntawm cov saw cellulose, tsis yog hydrogen xwb.
Propyl - txhais tau hais tias muaj ib sab saw ntawm ib txoj hauj lwm ntawm cov saw, qhov twg peb carbon atoms nyob ib puag ncig los ntawm hydrogen.
Methyl - Ib yam li propyl, tab sis tsis yog peb cov carbons, tab sis tsuas yog ib qho xwb.
Muab plaub yam no ua ke thiab koj yuav tau txais = hydroxypropyl methylcellulose
Yuav kom ua tib zoo tshuaj xyuas cov ntaub ntawv no thiab xyuas kom meej tias tsis muaj cov ntsiab lus tsis raug tsis quav ntsej lossis ua kom zoo nkauj, kuv tau kuaj xyuas seb Dr. Joseph Mercola (tus kws kho mob tiag tiag nrog cov kws tshawb fawb puv sijhawm) tau sau cov ntawv ntawm hydroxypropyl methylcellulose. Tsis yog. Tom qab ntawd kuv tau kuaj nws tus kheej cov tshuaj kom pom tias nws cov tshuaj ntsiav tau ua li cas. Yog lawm, lawv tau teev nyob rau hauv 'Lwm Cov Khoom Siv: Hydroxypropylmethylcellulose'.
Yog li kuv xav tias peb tuaj yeem hais meej tias cov kab hauv qab yog tias hydroxypropyl methylcellulose yog cov khoom noj muaj fiber ntau.
Ib feem uas feem ntau tshwm sim hauv peb cov tshuaj yog hydroxypropyl methylcellulose, uas feem ntau yog siv los ua tshuaj ntsiav.
Hydroxypropylmethylcellulose feem ntau yog muab los ntawm cov nroj tsuag cellulose, uas yog cov carbohydrate pom nyob rau hauv cov nroj tsuag cell phab ntsa. Qhov kev sib xyaw tshwj xeeb no feem ntau siv rau hauv kev tsim cov neeg tsis noj nqaij capsules.
Hydroxypropylmethylcellulose feem ntau tshwm nyob rau hauv daim ntawv ntawm hydroxypropylmethylcellulose los yog HPMC nyob rau hauv cov khoom xyaw, zoo ib yam li "magical hmoov".
Keeb kwm los ntawm cov nroj tsuag, thaum sib xyaw rau hauv cov khoom, nws tuaj yeem ua rau cov khoom thicker, xyuas kom meej qhov kev ntxhib los mos, thiab ua rau nws cov nyhuv ntev dua.
Nws yog pob tshab thiab nplaum thaum ntub dej, ua rau nws yog ib qho khoom siv hauv ntau qhov kev lag luam, tshwj xeeb tshaj yog vim nws maj mam rau peb lub cev thiab suav tias yog ib puag ncig zoo.
Hydroxypropyl methylcellulose ua li cas?
Yuav kom tswj tau qhov yooj yim thiab meej, kuv yuav qhia luv luv txog txhua theem hauv qab no:
- Raw khoom extraction: Lub ntsiab raw khoom ntawm hydroxypropyl methylcellulose yog cog cellulose, feem ntau muab tau los ntawm ntoo pulp los yog paj rwb lint.
- Kev kho Alkali: Kho cellulose nrog cov tshuaj alkaline muaj zog (xws li sodium hydroxide) kom hloov mus rau alkaline cellulose.
- Methylation: Hauv cov kauj ruam no, alkaline cellulose yog kho nrog methyl chloride los qhia methyl pawg mus rau cellulose molecules.
- Hydroxypropylation: Qhov no yog qhov uas hydroxypropyl tau qhia. Methylcellulose reacts nrog epoxy propane, ua rau kev sib txuas ntawm hydroxypropyl pawg.
- Purification: Tom qab ntawd ntxuav cov tau txais hydroxypropyl methylcellulose kom tshem tawm cov tshuaj tsis muaj tshuaj thiab lwm yam impurities. Qhov no feem ntau suav nrog kev ntxuav, lim, thiab ziab.
- Kev sib tsoo thiab granulation: Thaum kawg, cov qhuav hydroxypropyl methylcellulose yog hauv av rau hauv cov hmoov zoo thiab tuaj yeem ua granulated kom tau qhov loj me me rau nws daim ntawv thov.
Cov qib ntawm methylation thiab hydroxypropylation tuaj yeem tswj tau thaum lub sijhawm tsim khoom, uas yuav cuam tshuam rau kev solubility thiab viscosity ntawm cov tau txais hydroxypropylmethylcellulose.
Cov txheej txheem no tso cai rau cov tuam txhab tsim kho lawv cov cwj pwm rau cov ntawv thov tshwj xeeb kom tau raws li qhov xav tau ntawm ntau yam khoom.
Hydroxypropyl methylcellulose puas tuaj yeem muaj ntau yam kev siv?
Yog, nws yog ib qho khoom muaj ntau yam uas ua lub luag haujlwm hauv ntau qhov kev lag luam, thiab muaj ntau yam piv txwv. Qhov tseeb, ib tug ntawm lawv tau hais thaum pib ntawm tsab xov xwm.
Cia peb tham txog nws los ntawm kev lag luam.
- Hauv kev lag luam kws tshuaj.
Sustained tso cov ntsiav tshuaj: Hydroxypropylmethylcellulose yog siv rau hauv cov ntsiav tshuaj formulations los tswj qhov tso tawm tus nqi ntawm active tshuaj cov khoom xyaw thiab xyuas kom meej lub sij hawm ntev tso tshuaj.
Qhov muag tee: Siv los ua kua muag dag hauv kev npaj kho qhov muag kom txo cov tsos mob ntawm qhov muag qhuav.
Txheej tus neeg sawv cev: Nws cov khoom ua yeeb yaj kiab ua rau nws siv los ua cov tshuaj pleev xim rau cov ntsiav tshuaj thiab tshuaj ntsiav, txhim kho kev ruaj ntseg thiab zoo li.
- Hauv kev lag luam zaub mov.
Thickener thiab stabilizer: Hydroxypropylmethylcellulose yog ntxiv rau ntau yam khoom noj, xws li cov kua ntses, khoom qab zib, thiab cov khoom ci, kom ua tiav qhov xav tau sib xws lossis kev ntxhib los mos.
Cov neeg tsis noj nqaij hloov: Nws yog ib qho kev hloov pauv rau gelatin hauv cov zaub mov tsis noj nqaij lossis cov zaub mov tsis noj nqaij, vim tias nws muaj qhov sib xws zoo ib yam li gel, thiab tsis muaj cov khoom xyaw ntawm cov tsiaj keeb kwm.
Ceramic pobzeb nplaum nplaum thiab plaster: Hydroxypropylmethylcellulose yog siv los ua tus neeg saib xyuas dej kom paub meej kom qhuav thiab txhim kho kev ua haujlwm.
- Hauv tshuaj pleev ib ce.
Thickener nyob rau hauv cov tshuaj pleev ib ce thiab lub ntsej muag cream: Nws muab kev ntxhib los mos thiab sib xws rau cov tshuaj pleev ib ce.
Nws kuj muaj lwm yam kev siv tshwj xeeb.
- Ink ntau lawm: siv los ua thickener thiab stabilizer.
- Kev Ua Liaj Ua Teb: Siv los ua ib daim ntawv khi rau cov noob granular.
- Kev lag luam textile: siv rau textile sizing los txhim kho cov xov paj thaum lub sij hawm weaving.
Lwm cov lus nug
- Hydroxypropyl methylcellulose puas tuaj yeem noj tau zoo?
Yog lawm, hydroxypropyl methylcellulose feem ntau suav hais tias muaj kev nyab xeeb rau kev noj thiab tau pom zoo siv rau hauv cov zaub mov los ntawm ntau lub koom haum tswj hwm thoob ntiaj teb.
- Puas yog hydroxypropyl methylcellulose biodegradable?
Yog lawm, raws li cellulose derivative, hydroxypropylmethylcellulose yog biodegradable, uas ua rau nws zoo ib puag ncig piv rau qee cov hluavtaws polymers.
- Vim li cas thiaj siv hydroxypropyl methylcellulose hauv qhov muag te?
Hydroxypropylmethylcellulose tuaj yeem ua raws li cov yam ntxwv ntawm cov kua muag ntuj, muab lubrication thiab nyem rau qhov muag qhuav thiab astringent. Nws cov khoom viscous pab nws nyob ntawm qhov muag ntawm lub qhov muag ntev dua li dej, muab cov nyhuv ua kom ntev ntev.
Post lub sij hawm: Oct-30-2023
