Cov kev daws teeb meem muaj zog rau kev lag luam loj hlob
Methylparaben, tseem hu uap-hydroxybenzoic acid methyl ester, yog ib tug dav siv hluavtaws preservative teej tug mus rau parabens tsev neeg. Renowned rau nws dav -spectrum antimicrobial zog, nws tau dhau los ua ib qho tseem ceeb hauv kev lag luam xws li zaub mov thiab tshuaj pleev ib ce mus rau kws tshuaj. Kab lus no tshawb txog nws cov yam ntxwv tshuaj, kev siv, kev xav txog kev nyab xeeb, thiab kev sib cav tsis tu ncua nyob ib puag ncig nws siv.
Methylparaben (C₈H₈O₃) yog tus cwj pwm los ntawm phenolic hydroxyl pawg esterified nrog ib pawg methyl. Tsis zoo li acidic preservatives xws li benzoic los yog sorbic acid, methylparaben tseem siv tau nyob rau hauv ib tug dav pH ntau yam (pH 3-8) vim nws tsis yog - ionized molecular daim ntawv nyob rau hauv cov tshuaj.Its antimicrobial kev txiav txim yuav cuam tshuam microbial cell membranes, denaturing intracellular respiratory proteins, thiab inhibits kev thauj cov enzymes. Cov txheej txheem no ua kom muaj txiaj ntsig tiv thaiv cov pwm, cov poov xab, thiab cov kab mob, txawm hais tias nws muaj kev txwv tsis pub muaj zog tiv thaiv Gram- cov kab mob tsis zoo xws liPseudomonas aeruginosa
Daim ntawv thov thoob plaws kev lag luam
Kev txuag zaub mov
Methylparaben tau pom zoo ua zaub mov ntxiv hauv Asmeskas, EU, Nyiv, thiab lwm thaj chaw. Nws yog dav siv nyob rau hauv condiments (piv txwv li, soy sauce, vinegar), ci khoom, dej haus, thiab khoom noj khoom haus perishable kom ntev lub neej txee. Qhov tseem ceeb, nws qhov yuav tsum tau noj yog 1/5–1/10 ntawm cov tshuaj tiv thaiv ib txwm muaj xws li sorbic acid, txhim kho tus nqi{10}}kev ua tau zoo thaum tswj kev nyab xeeb.
Tshuaj pleev ib ce
Hauv cov tshuaj pleev ib ce, methylparaben ua haujlwm tseem ceeb, muaj nyob hauv ntau dua 90% ntawm cov khoom. Cov kev tshawb fawb qhia tias muaj txiaj ntsig inhibition ntawmEscherichia coli, Staphylococcus aureus, thiabCandida albicansntawm qhov concentrations tsawg li 0.04-0.10%, txawm tias muaj ntau dua (Ntau dua lossis sib npaug li 0.20%) yuav tsum tau rau cov qauv tsim.
Pharmaceuticals
Txawm hais tias feem ntau yog cov tshuaj tiv thaiv, methylparaben derivatives qee zaus ua haujlwm hauv cov tshuaj formulations rau lawv cov khoom siv tshuaj tua kab mob. Txawm li cas los xij, nws lub luag haujlwm ntawm no yog qhov thib ob piv rau nws txoj kev tswj hwm hauv cov khoom noj thiab tshuaj pleev ib ce
