Sodium carboxymethyl cellulose hauv cov khoom noj

Taw qhia

Sodium carboxymethyl cellulose (CMC) yog cov khoom noj khoom haus siv dav siv los txhim kho kev ntxhib los mos, ruaj khov, thiab txee lub neej ntawm ntau yam khoom noj khoom haus. CMC yog cov hmoov dawb, tsis muaj ntxhiab, tsis qab, uas yog muab los ntawm cov cellulose, cov khoom tseem ceeb ntawm cov phab ntsa ntawm cov nroj tsuag. Nws yog polysaccharide, lub ntsiab lus nws yog tsim los ntawm ntau cov suab thaj molecules txuas ua ke. CMC yog siv rau hauv ntau yam khoom noj khoom haus, xws li ice cream, sauces, dressings, thiab ci.

Keeb kwm

CMC yog thawj zaug tsim nyob rau thaum ntxov 1900s los ntawm German chemist, Dr. Karl Schardinger. Nws pom tias los ntawm kev kho cov cellulose nrog kev sib xyaw ntawm sodium hydroxide thiab monochloroacetic acid, nws tuaj yeem tsim cov khoom siv tshiab uas muaj ntau dua hauv dej dua li cellulose. Cov tshuaj tshiab no tau hu ua carboxymethyl cellulose, lossis CMC.

Nyob rau xyoo 1950, CMC tau xub siv los ua zaub mov ntxiv. Nws tau siv los ua kom tuab thiab ruaj khov cov kua ntses, hnav khaub ncaws, thiab lwm yam khoom noj. Txij thaum ntawd los, CMC tau dhau los ua cov khoom noj khoom haus nrov vim nws lub peev xwm los txhim kho kev ntxhib los mos, ruaj khov, thiab txee lub neej ntawm cov khoom noj khoom haus.

Chemistry

CMC yog polysaccharide, lub ntsiab lus nws yog tsim los ntawm ntau cov piam thaj molecules txuas ua ke. Lub ntsiab ntawm CMC yog cellulose, uas yog cov saw ntev ntawm cov piam thaj molecules. Thaum cellulose raug kho nrog kev sib xyaw ntawm sodium hydroxide thiab monochloroacetic acid, nws tsim carboxymethyl cellulose. Cov txheej txheem no hu ua carboxymethylation.

CMC yog cov hmoov dawb, tsis muaj ntxhiab, tsis qab, uas yog soluble hauv dej txias thiab kub. Nws yog ib yam uas tsis muaj tshuaj lom, tsis yog-allergenic, thiab tsis ua rau khaus uas muaj kev nyab xeeb rau tib neeg noj.

Muaj nuj nqi

CMC siv ntau yam khoom noj los txhim kho lawv cov kev ntxhib los mos, ruaj khov, thiab txee lub neej. Nws yog siv los ua tus neeg sawv cev thickening los muab cov khoom noj khoom haus zoo nkauj thiab ua kom ruaj khov kom lawv tsis txhob sib cais lossis lwj. CMC kuj tseem siv los ua emulsifier los pab cov roj thiab dej sib xyaw ua ke.

Tsis tas li ntawd, CMC yog siv los tiv thaiv cov dej khov siv lead ua hauv cov khoom qab zib khov, xws li dej khov. Nws kuj yog siv los txhim kho kev ntxhib los mos ntawm cov khoom ci, xws li ncuav qab zib thiab ncuav qab zib.

Kev cai

CMC yog tswj hwm los ntawm Food and Drug Administration (FDA) hauv Tebchaws Meskas. FDA tau teeb tsa qhov siab tshaj plaws ntawm kev siv rau CMC hauv cov khoom noj. Qhov siab tshaj plaws ntawm kev siv yog 0.5% los ntawm qhov hnyav.

Xaus

Sodium carboxymethyl cellulose (CMC) yog cov khoom noj khoom haus siv dav siv los txhim kho kev ntxhib los mos, ruaj khov, thiab txee lub neej ntawm ntau yam khoom noj khoom haus. CMC yog cov hmoov dawb, tsis muaj ntxhiab, tsis qab, uas yog muab los ntawm cov cellulose, cov khoom tseem ceeb ntawm cov phab ntsa ntawm cov nroj tsuag. Nws yog polysaccharide, lub ntsiab lus nws yog tsim los ntawm ntau cov suab thaj molecules txuas ua ke. CMC yog siv los ua tus neeg sawv cev thickening, emulsifier, thiab tiv thaiv cov dej khov siv lead ua hauv cov khoom qab zib khov. Nws tau tswj hwm los ntawm FDA hauv Tebchaws Meskas, nrog rau qib siab tshaj plaws ntawm kev siv 0.5% los ntawm qhov hnyav.