Carboxymethyl cellulose (CMC) yog ib qho khoom noj uas nquag siv, tshwj xeeb tshaj yog nyob rau hauv kev tsim khoom khov nab kuab. Nws yog ib qho cellulose derivative tau los ntawm chemically modifying natural cellulose thiab ntxiv carboxymethyl pawg. Raws li cov dej-soluble polymer, lub luag haujlwm tseem ceeb ntawm carboxymethyl cellulose hauv ice cream muaj xws li thickening, stabilization, txhim kho saj thiab ncua lub neej txee.
1. Txhim kho qhov kev ntxhib los mos thiab saj ntawm ice cream
Cov saj ntawm ice cream yog ib qho tseem ceeb ntawm cov neeg siv khoom xaiv. Txhawm rau kom ntseeg tau tias cov dej khov nab kuab muaj qhov sib luag thiab muag heev, cov tuam ntxhab feem ntau yuav tsum tau kho nws cov qauv dej thiab lub xeev emulsification. Carboxymethyl cellulose tuaj yeem nqus dej thiab o tuaj yeem tsim cov qauv gelatinous, ua kom cov viscosity ntawm ice cream matrix, thiab ua rau cov ice cream softer thiab smoother nyob rau hauv lub qhov ncauj. Nyob rau tib lub sijhawm, carboxymethyl cellulose tuaj yeem ua rau lub thickness thiab creaminess ntawm ice cream thiab txhim kho nws cov nyhuv tag nrho.
2. Txhim kho qhov ruaj khov ntawm cov dej khov
Kev ruaj ntseg ntawm cov dej khov nab kuab yog qhov tseem ceeb rau nws qhov zoo, tshwj xeeb tshaj yog thaum lub sij hawm khov thiab kev thauj mus los, kev loj hlob ntawm cov dej khov ntau dhau thiab kev hloov kev ntxhib los mos yuav tsum raug tiv thaiv. Feem ntau, cov dej ntau ntxiv rau cov dej khov nab kuab thaum lub sijhawm tsim khoom, tshwj xeeb tshaj yog nyob rau theem dej. Kev sib cuam tshuam ntawm dej thiab rog thiab tsim cov dej khov nab kuab tuaj yeem ua rau cov dej khov nab kuab muaj cov hmoov nplej lossis tsis sib xws thaum lub sijhawm khov. Raws li cov thickener, carboxymethyl cellulose tuaj yeem nqus dej zoo thiab tswj cov dej dawb, yog li txo qhov tsim ntawm cov dej khov.
Tsis tas li ntawd, carboxymethyl cellulose tuaj yeem txhim kho cov emulsification ntawm cov dej khov nab kuab matrix, pab cov roj molecules kom sib npaug sib npaug hauv cov dej theem thiab tiv thaiv emulsion stratification. Qhov emulsification no tuaj yeem tswj hwm qhov sib xws ntawm cov dej khov nab kuab thoob plaws lub sijhawm cia thiab txo cov crystallization lossis dej sib cais uas yuav tshwm sim hauv cov dej khov tom qab khov.
3. Ntev lub neej txee ntawm ice cream
Txij li cov dej khov nab kuab yog cov khoom noj siv mis uas muaj qhov cuam tshuam rau cov kab mob microbial thiab kev hloov pauv kub, nws yog ib qho tseem ceeb rau cov tuam txhab lag luam kom ncua nws lub neej txee. Carboxymethyl cellulose muaj qee yam dej tuav thiab cov nyhuv antioxidant, thiab tuaj yeem tsim cov yeeb yaj kiab tiv thaiv hauv dej khov kom qeeb dej thiab oxidation ntawm cov rog. Qhov no yuav pab kom ntev lub txee lub neej ntawm cov dej khov thiab ua kom nws cov tsw thiab kev ntxhib los mos ruaj khov.
4. Tswj lub solubility ntawm ice cream
Thaum lub sij hawm noj, ice cream yuav pib yaj vim qhov kub thiab txias. Yog hais tias cov ice cream melted yog liquefied dhau lawm, nws yuav poob nws thawj saj thiab kev ntxhib los mos. Carboxymethyl cellulose tuaj yeem txhim kho cov viscosity ntawm cov dej khov nab kuab, txo cov dej poob thaum nws melts, tswj tus nqi melting, thiab tswj cov duab thiab kev ntxhib los mos ntawm ice cream. Los ntawm kev kho tus nqi ntawm CMC, cov tuam txhab lag luam tuaj yeem tswj cov yam ntxwv ntawm cov dej khov hauv qhov kub thiab txias, yog li txhim kho cov neeg siv khoom noj khoom haus.
5. Lwm cov haujlwm
Ntxiv rau cov haujlwm saum toj no, carboxymethyl cellulose kuj muaj qee qhov kev pabcuam hauv cov dej khov. Piv txwv li, nws tuaj yeem txhim kho qhov ruaj khov ntawm npuas hauv dej khov thiab txhim kho qhov fluffiness ntawm ice cream. Cov nyhuv no yog qhov tseem ceeb tshwj xeeb rau qee cov dej khov nab kuab uas muaj cua (xws li cov ice cream mos). Tsis tas li ntawd, carboxymethyl cellulose tuaj yeem ua haujlwm sib koom ua ke nrog lwm cov khoom noj khoom haus ntxiv (xws li stabilizers, emulsifiers, thiab lwm yam) los txhim kho cov nyhuv ntawm tag nrho cov mis.
Carboxymethyl cellulose muaj ntau lub zog hauv cov dej khov nab kuab, uas tuaj yeem tsis tsuas yog txhim kho cov saj thiab kev ntxhib los mos, tab sis kuj txhim kho kev ruaj ntseg, ntev txee lub neej, thiab tswj lub melting ntawm ice cream. Raws li cov khoom noj muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo, CMC ua lub luag haujlwm tseem ceeb hauv kev tsim khoom noj khov. Thaum ua kom ntseeg tau qhov zoo ntawm cov dej khov nab kuab, nws tuaj yeem ua tau raws li cov neeg siv khoom xav tau siab rau kev saj thiab kev noj haus. Yog li ntawd, carboxymethyl cellulose tau dhau los ua ib qho ntawm cov khoom xyaw tseem ceeb hauv kev tsim cov ice cream niaj hnub.
Post lub sij hawm: Jan-04-2025