Hydroxyethylcellulose (HEC) feem ntau hu ua thickening thiab gelling tus neeg sawv cev nyob rau hauv ntau yam lag luam, nrog rau cov tshuaj pleev ib ce, tshuaj, thiab txawm nyob rau hauv ib co khoom noj khoom haus. Txawm li cas los xij, nws qhov kev siv tseem ceeb tsis yog khoom noj khoom haus ntxiv, thiab nws tsis yog feem ntau noj ncaj qha los ntawm tib neeg hauv ntau qhov tseem ceeb. Uas tau hais tias, nws tau pom tias muaj kev nyab xeeb rau kev siv hauv cov khoom noj khoom haus los ntawm kev tswj hwm lub cev thaum siv hauv qee qhov kev txwv. Nov yog kev saib tag nrho ntawm hydroxyethylcellulose thiab nws qhov profile kev nyab xeeb:
Hydroxyethylcellulose (HEC) yog dab tsi?
Hydroxyethylcellulose yog non-ionic, dej-soluble polymer muab los ntawm cellulose, ib yam khoom ntuj pom nyob rau hauv cov nroj tsuag. Nws yog tsim los ntawm kev kho cellulose nrog sodium hydroxide thiab ethylene oxide. Cov txiaj ntsig tau muaj ntau yam kev siv vim nws muaj peev xwm ua kom tuab thiab ruaj khov, tsim cov gels ntshiab lossis kua dej khov.
Kev siv HEC
Tshuaj pleev ib ce: HEC feem ntau pom muaj nyob rau hauv cov khoom kom zoo nkauj xws li tshuaj pleev ib ce, cream, tshuaj zawv plaub hau, thiab gels. Nws pab muab kev ntxhib los mos thiab sib xws rau cov khoom no, txhim kho lawv cov kev ua tau zoo thiab hnov ntawm daim tawv nqaij lossis plaub hau.
Pharmaceuticals: Hauv cov tshuaj formulations, HEC yog siv los ua cov thickener, stabilizer, thiab emulsifier hauv ntau yam tshuaj pleev thiab qhov ncauj.
Kev lag luam khoom noj khoom haus: Txawm hais tias tsis zoo ib yam li hauv tshuaj pleev ib ce thiab tshuaj, HEC yog qee zaus siv hauv kev lag luam khoom noj khoom haus ua tus neeg sawv cev thickening, stabilizer, lossis emulsifier hauv cov khoom xws li kua ntses, hnav khaub ncaws, thiab lwm yam khoom noj siv mis.
Kev nyab xeeb ntawm HEC hauv cov khoom noj khoom haus
Kev nyab xeeb ntawm hydroxyethylcellulose hauv cov khoom noj khoom haus raug soj ntsuam los ntawm cov koom haum tswj hwm xws li US Food and Drug Administration (FDA), European Food Safety Authority (EFSA), thiab cov koom haum zoo sib xws thoob ntiaj teb. Cov koom haum no feem ntau ntsuas kev nyab xeeb ntawm cov khoom noj ntxiv raws li cov pov thawj tshawb fawb txog lawv qhov muaj peev xwm toxicity, allergenicity, thiab lwm yam.
1. Kev Tso Cai Pom Zoo: HEC feem ntau lees paub tias muaj kev nyab xeeb (GRAS) siv rau hauv cov khoom noj khoom haus thaum siv raws li kev tsim khoom zoo thiab tsis pub dhau qhov txwv. Nws tau muab tus lej E (E1525) los ntawm European Union, qhia txog nws qhov kev pom zoo ua zaub mov ntxiv.
2. Kev Tshawb Fawb Txog Kev Nyab Xeeb: Txawm hais tias muaj kev tshawb fawb tshwj xeeb tshwj xeeb rau kev nyab xeeb ntawm HEC hauv cov khoom noj khoom haus, cov kev tshawb fawb txog cov cellulose derivatives uas muaj feem cuam tshuam txog kev pheej hmoo ntawm toxicity thaum noj hauv ib txwm muaj. Cellulose derivatives tsis metabolized los ntawm tib neeg lub cev thiab raug tshem tawm tsis hloov, ua rau lawv feem ntau muaj kev nyab xeeb rau kev noj.
3. Txais Kev Noj Qab Haus Huv Txhua Hnub (ADI): Cov koom haum tswj hwm tsim kom muaj kev noj haus txhua hnub (ADI) rau cov khoom noj ntxiv, suav nrog HEC. Qhov no sawv cev rau tus nqi ntawm cov tshuaj ntxiv uas tuaj yeem noj txhua hnub hauv lub neej yam tsis muaj kev pheej hmoo rau kev noj qab haus huv. ADI rau HEC yog raws li kev tshawb fawb toxicological thiab tau teeb tsa rau theem pom tias tsis zoo li yuav ua rau muaj kev phom sij.
hydroxyethylcellulose raug suav hais tias muaj kev nyab xeeb rau kev siv hauv cov khoom noj khoom haus thaum siv nyob rau hauv cov txheej txheem tswj. Txawm hais tias nws tsis yog khoom noj khoom haus ntxiv thiab feem ntau yog siv hauv cov tshuaj pleev ib ce thiab tshuaj, nws txoj kev nyab xeeb tau raug soj ntsuam los ntawm cov koom haum tswj hwm, thiab nws tau pom zoo siv rau hauv cov ntawv thov zaub mov. Raws li nrog rau txhua yam khoom noj ntxiv, nws yog ib qho tseem ceeb uas yuav tsum tau siv HEC raws li kev pom zoo siv qib thiab ua raws li kev tsim khoom zoo los xyuas kom meej cov khoom muaj kev nyab xeeb.
Post lub sij hawm: Apr-26-2024