Kev tsim ntawm cov tshuaj pleev ib cekhaws ciasystem yuav tsum ua raws li cov hauv paus ntsiab lus ntawm kev nyab xeeb, kev ua tau zoo, pertinence thiab compatibility nrog rau lwm cov khoom xyaw hauv cov mis.Nyob rau tib lub sij hawm, tus tsim preservative yuav tsum sim ua kom tau raws li cov cai hauv qab no:
①Broad-spectrum antibacterial kev ua haujlwm;
② Zoo sib xws;
③ Kev ruaj ntseg zoo:
④ Cov dej solubility zoo;
⑤ Kev ruaj ntseg zoo;
⑥ Raws li kev siv concentration, nws yuav tsum tsis muaj xim, tsis muaj ntxhiab thiab tsis qab;
⑦ Tus nqi qis.
Kev tsim cov txheej txheem tiv thaiv corrosion tuaj yeem ua raws li cov kauj ruam hauv qab no:
(1) Kev tshuaj xyuas ntawm cov khoom siv preservatives
(2) Compounding ntawm preservatives
(3) Tsim ntawmkhaws cia- dawb system
Qhov zoo tshaj plaws preservative yuav tsum inhibit tag nrho cov kab mob, nrog rau cov fungi (cov poov xab, pwm), gram-zoo thiab tsis zoo cov kab mob.Feem ntau, cov tshuaj preservatives feem ntau yog siv los tiv thaiv kab mob los yog fungi, tab sis tsis tshua muaj lawv yuav ua tau zoo rau ob leeg.Yog li ntawd, qhov kev xav tau ntawm kev ua haujlwm dav dav tsis tshua pom los ntawm kev siv ib qho tshuaj tiv thaiv.Kev siv cov concentrations tsawg tuaj yeem ua tau zoo thiab yuav tsum ua kom cov kab mob tsis zoo sai sai, txaus los tiv thaiv kev cuam tshuam ntawm cov kab mob ntawm cov kab mob preservative.Nws kuj txo qhov kev pheej hmoo ntawm kev khaus thiab toxicity.Cov tshuaj tua kab mob yuav tsum ruaj khov ntawm txhua qhov kub thiab pH thaum lub sij hawm tsim cov tshuaj pleev ib ce thiab thaum lub sij hawm lawv lub neej txee, tswj lawv cov tshuaj tiv thaiv kab mob.Qhov tseeb, tsis muaj cov organic tebchaw ruaj khov thaum kub kub, lossis pH huab cua.Nws tsuas yog ua tau kom ruaj khov nyob rau hauv ib qho chaw.
Nrog rau qhov kev tshawb fawb tob txog kev nyab xeeb ntawm cov tshuaj preservatives, ntau cov tshuaj preservatives tau raug pov thawj tias muaj qee yam tsis zoo;feem ntau ntawm cov preservatives muaj irritating teebmeem, thiab lwm yam.Yog li, lub tswv yim ntawm kev nyab xeeb "tsis ntxiv"khaws ciacov khoom pib tshwm sim.Tab sis tiag tiag preservative-dawb cov khoom tsis lav lub txee lub neej, yog li lawv tseem tsis tau nrov nrov.Muaj kev tsis sib haum xeeb ntawm kev khaus thiab txee lub neej, yog li yuav ua li cas los daws qhov kev tsis sib haum xeeb no?Qee lub tuam txhab muaj npe nrov tau kawm qee qhov sib xyaw uas tsis suav nrog hauv cov tshuaj tiv thaiv kab mob, thiab tshuaj xyuas qee cov cawv cawv nrog cov tshuaj tiv thaiv, xws li Hexanediol, Pentanediol, P-hydroxyacetophenone (CAS Nr .: 70161-44-3), Ethylhexylglycerin (CAS Nr .: 70445-33-9) ,CHA Caprylhydroxamic Acid ( CAS Nr . 7377-03-9) thiab lwm yam, thaum cov tshuaj sib xyaw no siv rau hauv cov khoom tsim nyog, tuaj yeem ua tiav cov txiaj ntsig zoo thiab dhau qhov kev sib tw preservative.
Post lub sij hawm: Mar-02-2022