HPMC (HydroxyPropyyl methylcellulose) yog ib qho uas siv cov zaub mov uas muaj yees ntxiv thiab tau siv dav hauv cov qhob cij ntau lawm. Nws yog dej-soluble polymer compound tau los ntawm kev hloov kho lub cev ntuj cog cellulose. Raws li cov khoom noj-qib ntxiv, HPMC tuaj yeem muab cov txheej txheem ntau hauv cov khoom ua noj thiab txhim kho cov ncauj lus, saj thiab khaws cia ci.
1. Kev txhais thiab cov khoom ntawm HPMC
HPMC yog ib qho tseem ceeb ntawm cellulose. Cellulose, raws li lub ntuj polysaccharide, feem ntau pom nyob hauv cov phab ntsa cell. HPMC yog tsim los ntawm kev rov qab ua cellulose molecules nrog hydroxypropyl thiab methyl pawg, ua rau nws cov dej me me-soluble thiab ruaj khov. HPMC nws tus kheej yog tsis muaj xim, tasteless, tsis muaj ntxhiab, thiab tsis muaj teeb meem rau tib neeg lub cev. Nws yog ib qho khoom noj uas nquag muaj additive.
2. Muaj nuj nqi ntawm HPMC hauv khob cij
HPMC tau siv dav hauv ncuav. Nws cov haujlwm tshwj xeeb tuaj yeem sib tham los ntawm cov hauv qab no:
(1) txhim kho cov qauv thiab saj ntawm qhob cij
HPMC tuaj yeem tsim cov tshuaj khov kho ruaj khov, uas ua rau nws ua lub luag haujlwm txhim kho cov qauv ntawm cov khob cij hauv khob noom cookie hauv cov qhob cij. Nws tuaj yeem txhim kho cov viscoelastic ntawm cov khob noom cookie, txhawb nqa cov qhob cij thiab nthuav tawm cov qhob cij, thiab paub meej tias qhov muag muag muag thiab cov qauv ntawm cov qhob cij.
Nyob rau tib lub sijhawm, HPMC tuaj yeem pab khob noom pa nqus dej, tswj kom cov dej noo ntawm cov qhob cij, tiv thaiv dej ntau dhau, thiab txuas lub txee ntev ntawm cov qhob cij. Qhov no yog qhov tshwj xeeb tshaj yog rau qee cov ncuav ntim khoom uas khaws cia ntev.
(2) Txhim kho cov dej tuav tseg ntawm qhob cij
HPMC tuaj yeem nce cov dej noo cov khoom muaj peev xwm ntawm cov khob noom cookie thiab txo cov pa dej thaum lub sijhawm ci. Kev ua kom muaj dej noo hauv cov qhob cij pab txhim kho kom noo noo thiab tshiab ntawm qhob cij, thiab tseem yuav tiv thaiv kom qhuav ua kom qhuav thiab tawv. Cov dej cawv ntawm cov qhob cij yog qhov zoo, saj yog softer, thiab cov crust tsis yooj yim rau cov tawv tawv lossis tawg.
(3) txhim kho cov khoom tiv thaiv kev laus ntawm cov qhob cij
Mov me nyuam hnub nyoog feem ntau thaum lub sij hawm cia, uas yog manifested raws li lub saj qhuav thiab ua kom tawv. HPMC muaj peev xwm ncua sij hawm kev laus ntawm qhob cij. Qhov no yog vim nws tuaj yeem khaws cov noo noo hauv qhob cij thiab txo cov hmoov txhuv nplej siab, yog li kev ncua ntawm cov mov ci thiab ncua cov txheej txheem dej poob ntawm qhob cij.
(4) Txhim kho qhov fermentity ntawm qhob cij
HPMC kuj tseem tuaj yeem ua lub luag haujlwm ua ib lub luag haujlwm hauv cov txheej txheem fermentation. Nws tuaj yeem txhim kho cov fermentation muaj peev xwm ntawm cov khob noom cookie, tso cai rau lub khob noom cookie kom nthuav dav thaum lub khob cij muaj ntau dua, qhia qhov txiaj ntsig zoo. Rau cov neeg ua mov ci, qhov no txhais tau tias lawv tuaj yeem tswj tau kev ua kom zoo dua ntawm cov duab thiab cov tsos ntawm lub khob cij.
(5) Txhim kho cov tsos thiab saj ntawm qhob cij
Daim ntawv thov ntawm HPMC tuaj yeem ua rau cov qhob cij crust smoother thiab txhim kho nws cov glossiness. Cov xim ntawm cov qhob cij crust yuav ntau yam tsis zoo thiab zoo nkauj, thiab thaum txiav lub ncuav, kev txiav yuav tsis tawg. Vim tias nws cov dej ua haujlwm ntawm cov mov ci yog qhov sib zog thiab tsis muaj qhov hws ntau dhau los yog qhov, ua rau saj cov khoom noj ntau dua.
3. HPMC siv thiab kev nyab xeeb
Tus nqi HPMC ntxiv rau khob cij feem ntau me me. Raws li cov qauv kev nyab xeeb zaub mov, feem ntau nws tsis tshaj 0.1% rau 0.5% ntawm qhov hnyav tag nrho ntawm lub khob noom cookie. Qhov kev siv tau ntawm kev siv no yuav tsis cuam tshuam rau tib neeg kev noj qab haus huv, thiab HPMC nws tus kheej yuav tsis raug zom thiab nqus tau hauv tib neeg lub cev. Feem ntau ntawm nws yuav raug tawm los ntawm lub cev los ntawm kev zom nrog cov zaub mov, yog li nws yog qhov ntxiv addective.
4. Kev ua lag luam thiab kev cia siab ntawm HPMC
Raws li kev lag luam khoom noj khoom haus thiab kev nyab xeeb txuas ntxiv, HPMC, raws li kev ua zaub mov muaj txiaj ntsig zoo, yog nce hauv cov qhob cij ntau lawm. Nws tsis tuaj yeem txhim kho qhov ua tau zoo, tab sis kuj tau ntsib cov neeg siv khoom lub neej, tshwj xeeb yog cov khoom lag luam khoom noj thiab ntev, HPMC ua si lub luag haujlwm tseem ceeb.
Nyob rau hauv xyoo tsis ntev los no, raws li cov neeg siv khoom noj khoom haus rau cov zaub mov zoo txuas ntxiv ntxiv, kev lag luam kev cia siab ntawm HPMC tau dhau los ua ntau dua thiab dav dav. Yav tom ntej, nrog kev nce qib ntawm kev tshawb fawb thiab kev txhim kho ntawm cov ncuav thiab cov khoom ci uas pom tau los txhim kho cov qauv kev lag luam zoo ntawm kev lag luam khoom noj.
Raws li cov khoom noj muaj ntau ntau cov zaub mov ntxiv, HPMC ua si ntau lub luag haujlwm hauv kev tsim khoom. Los ntawm kev txhim kho cov qauv thiab saj ntawm qhob cij kom txuas lub txee lub neej thiab txhim kho fermentability, HPMC tuaj yeem txhim kho qhov ua tau zoo thiab kev khaws cia ntawm qhob cij. Vim nws cov dej-soluble, tsis-lom thiab tsis muaj kuab cov xeeb ntxwv, HPMC tau dhau los ua qhov tsis tseem ceeb ntawm kev lag luam qhob niaj hnub no. Nrog rau kev txhim kho kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho ntawm tib neeg txoj kev paub txog kev noj qab haus huv, HPMC muaj kev cia siab rau cov kev cia siab thiab ua lag luam muaj peev xwm ua lag luam.
Lub Sijhawm Post: Feb-18-2025