Puas yog phenoxyethanol ua teeb meem rau daim tawv nqaij?

Yog dab tsiphenoxyethanol?
Phenoxyethanol yog ib qho glycol ether uas tsim los ntawm kev sib xyaw cov pawg phenolic nrog ethanol, thiab nws zoo li roj lossis mucilage hauv nws lub xeev kua. Nws yog ib qho tshuaj preservative feem ntau hauv cov tshuaj pleev ib ce, thiab tuaj yeem pom muaj nyob rau hauv txhua yam los ntawm cov tshuaj pleev ntsej muag mus rau cov tshuaj pleev ib ce.
Phenoxyethanol ua tiav nws cov txiaj ntsig tiv thaiv tsis yog los ntawm kev tiv thaiv kab mob tab sis los ntawm nws cov haujlwm tiv thaiv kab mob, uas tiv thaiv thiab tshem tawm cov kab mob gram-positive thiab negative ntau ntau. Nws kuj muaj cov nyhuv tseem ceeb rau ntau yam kab mob xws li E. coli thiab Staphylococcus aureus.
Puas yog phenoxyethanol ua teeb meem rau daim tawv nqaij?
Phenoxyethanol tuaj yeem ua rau tuag taus yog tias noj ntau dhau. Txawm li cas los xij, kev siv rau sab nraud ntawm cov tshuaj nophenoxyethanolntawm cov concentration tsawg dua 1.0% tseem nyob hauv qhov ntau yam kev nyab xeeb.
Peb tau tham txog seb ethanol puas raug metabolized rau acetaldehyde ntau ntau ntawm daim tawv nqaij thiab seb nws puas raug nqus tau ntau ntau los ntawm daim tawv nqaij. Ob qho no kuj tseem ceeb heev rau phenoxyethanol. Rau daim tawv nqaij uas muaj lub thaiv tsis muaj qhov puas tsuaj, phenoxyethanol yog ib qho ntawm cov glycol ethers uas lwj sai tshaj plaws. Yog tias txoj kev metabolic ntawm phenoxyethanol zoo ib yam li ethanol, kauj ruam tom ntej yog kev tsim cov acetaldehyde tsis ruaj khov, ua raws li phenoxyacetic acid thiab lwm yam dawb radicals.
Tsis txhob txhawj! Thaum peb tham txog retinol ua ntej, peb kuj tau hais txog lub cev enzyme uas cuam tshuam nrog kev ua haujlwm ntawmphenoxyethanol, thiab tias cov txheej txheem hloov pauv no tshwm sim hauv qab stratum corneum. Yog li peb yuav tsum paub ntau npaum li cas phenoxyethanol tau nqus tau transdermally. Hauv ib txoj kev tshawb fawb uas tau sim qhov kev nqus ntawm cov sealant dej uas muaj phenoxyethanol thiab lwm yam khoom xyaw tiv thaiv kab mob, daim tawv nqaij npua (uas muaj qhov permeability ze tshaj plaws rau tib neeg) yuav nqus tau 2% phenoxyethanol, uas kuj nce mus txog tsuas yog 1.4% tom qab 6 teev, thiab 11.3% tom qab 28 teev.
Cov kev tshawb fawb no qhia tau hais tias kev nqus thiab kev hloov pauv ntawm cov khoom nophenoxyethanolntawm cov concentration tsawg dua 1% tsis siab txaus los tsim cov tshuaj metabolites uas ua rau muaj kev phom sij. Cov txiaj ntsig zoo sib xws kuj tau txais hauv kev tshawb fawb siv cov menyuam mos uas muaj hnub nyoog qis dua 27 lub lis piam. Kev tshawb fawb tau hais tias, "Aqueousphenoxyethanoltsis ua rau daim tawv nqaij puas tsuaj loj piv rau cov tshuaj preservatives uas muaj ethanol. Phenoxyethanol nqus mus rau hauv daim tawv nqaij ntawm cov menyuam mos, tab sis tsis tsim cov khoom oxidation phenoxyacetic acid ntau heev. Qhov tshwm sim no kuj qhia tau tias phenoxyethanol muaj qhov nrawm tshaj plaws ntawm kev ua haujlwm hauv daim tawv nqaij thiab tsis ua rau muaj kev puas tsuaj loj. Yog tias cov menyuam mos tuaj yeem ua tau, koj ntshai dab tsi?
Leej twg zoo dua, phenoxyethanol lossis cawv?
Txawm hais tias phenoxyethanol metabolized sai dua li ethanol, qhov siab tshaj plaws txwv concentration rau kev siv sab nraud yog qis dua ntawm 1%, yog li nws tsis yog qhov sib piv zoo. Txij li thaum stratum corneum tiv thaiv feem ntau ntawm cov molecules los ntawm kev nqus, cov free radicals tsim los ntawm ob qho no yog tsawg dua li cov uas tsim los ntawm lawv tus kheej oxidation reactions txhua hnub! Ntxiv mus, vim tias phenoxyethanol muaj cov phenolic pawg hauv daim ntawv ntawm roj, nws evaporates thiab qhuav qeeb dua.
Kev Txheeb Xyuas
Phenoxyethanol yog ib yam khoom siv tiv thaiv uas siv rau hauv cov tshuaj pleev ib ce. Nws muaj kev nyab xeeb thiab ua tau zoo, thiab yog qhov thib ob tom qab parabens hauv kev siv. Txawm hais tias kuv xav tias parabens kuj muaj kev nyab xeeb, yog tias koj tab tom nrhiav cov khoom uas tsis muaj parabens, phenoxyethanol yog qhov kev xaiv zoo!