Science News for KIDS
Carboxymethyl cellulose (CMC) (E466) rau tsob nroj nqaij, mas sis plawv hniav ntoo thiab paj rwb extraction, tiam sis vim nws yog dej num yog ib hom khoom xyaw zaub mov natural tshuaj lom neeg tsis yog hloov. Tej cellulose inert thiab insoluble, tab sis pauv ua soluble.
Khoom noj khoom haus, cellulose tsis muaj cua sov; nws tsi muaj neeg zom cov zaub mov nyob uas tsis muaj calorie khoom, vim li no, pab tau heev.
Lub ntsiab txhais hom thiab qib muaj thiab nyiam ntawv yeej zoo.
Kev kawm
CMC yog soluble hauv dej txias hais cov kua thiab tsis xim.
Lub ntsiab zog ntawm viscosity rau ntawm CMC zus.
Siv qhov khoom ntawd, CMC muab ceev cia hnab khib yuav tsum tau nyob rau hauv cov dej haus, xws li viscosity.
Ua los ntawm tuam txhab CMC, tus viscosity yuav tseem kom khov khoom, xws li mis nyuj khov, mis nyuj khov thiab stability txoj kev lwj. Tus zoo xws li kev tiv thaiv thiab inhibit cov uas muaj dej khov zoo nkauj muaju, kuj thermal poob siab thiab kev cev qhuav dej qeeb thiab dej kev kawm paub thiab nws yuav zoo dua.
Yuav siv cov khoom CMC thooj nyhuv, xws li cov ntses nyias thiab soob. Cov cuab yeej CMC ua kom haum rau tej daim ntaub ntawv tas nyob hauv cov dej kub thiab dej txias lub xaus lub neej sai, dej zoo thiab zoo kuj mus rau theem qis pH.
CMC muab lub cev nrog dej qab zib los yog xav tias qhov ncauj qab zib thiab sweeteners, dej haus uas tsis muaj calorie, mus ntxiv zoo phim saj ntawm sucrose los sis qabzib phoov, thiab kom suppress tus "xauv ' los tsw roj rau haus.
Lub tsev lag luam uas ci khoom kuj yeej CMC. Nyob rau hauv lub ncuav mog qab zib batter ntoos sib xyaw hmoov nplej thiab CMC yuav txhim khu lub yield, loj, me, cov viscosity thiab ua kom cov khoom xyaw baking, xws li kev ncua kawm ntawv thiab tis ntawm cov txiv hmab txiv ntoo. CMC yuav kuj paub yield thiab paub ntub dej cia, thiab yuav siv tau los ua rau kom cov yield los sis ncua cov laus, sij cas sim haum lub txee lub neej.
Feem koob theem rau lub CMC hauv khoom noj khoom haus yog 0.1 - 0.3% w/w no yog muaj, nrog rau ib koob tshuaj taag, hloov CMC nplai yog siv los muab cov viscosity uas koj yuav tsum tau txhaj.