Tam sim no, feem ntau ntawm cov tshuaj lom neegcov tshuaj preservativessiv hauv peb lub khw yog benzoic acid thiab nws cov ntsev sodium, sorbic acid thiab nws cov ntsev potassium, propionic acid thiab nws cov ntsev, p-hydroxybenzoic acid esters (nipagin ester), dehydroacetic acid thiab nws cov ntsev sodium, sodium lactate, fumaric acid, thiab lwm yam.
1. Benzoic acid thiab nws cov ntsev sodium
Benzoic acid thiab nws cov ntsev sodium yog ib qho ntawm cov feem ntau sivcov tshuaj preservativesHauv kev lag luam ua zaub mov hauv Suav teb, feem ntau yog siv rau kev khaws cov khoom noj ua kua xws li dej haus (piv txwv li dej qab zib, kua txiv hmab txiv ntoo, kua ntses, zaub mov hauv kaus poom, cawv, thiab lwm yam). Benzoic acid yog lipophilic thiab yooj yim nkag mus rau hauv lub cell membrane thiab nkag mus rau hauv lub cev cell, yog li cuam tshuam rau qhov permeability ntawm lub cell membrane ntawm cov kab mob me me thiab inhibiting qhov nqus ntawm amino acids los ntawm lub cell membrane. Lub benzoic acid molecule uas nkag mus rau hauv lub cev cell, ionizes cov khoom alkaline hauv lub cell, thiab tuaj yeem inhibit qhov kev ua haujlwm ntawm lub cell respiratory enzyme system, thiab muaj lub luag haujlwm tseem ceeb hauv kev tiv thaiv acetyl coenzyme A condensation reaction, yog li ua si ib qho preservative effect rau zaub mov.
2 Sorbic acid thiab nws cov ntsev potassium
Sorbic acid (potassium sorbate) yog cov tshuaj preservative uas siv ntau tshaj plaws thiab siv rau hauv feem ntau lub tebchaws. Sorbic acid yog unsaturated fatty acid, nws txoj kev txwv tsis pub siv nws cov kab sib txuas ob npaug thiab cov hlwb microbial hauv cov enzyme ntawm pawg sulfhydryl ua ke los tsim covalent bond, yog li nws poob kev ua haujlwm thiab rhuav tshem cov enzyme system. Tsis tas li ntawd, sorbic acid kuj tseem tuaj yeem cuam tshuam nrog kev ua haujlwm hloov pauv, xws li kev hloov pauv ntawm oxygen los ntawm cytochrome C, thiab kev ua haujlwm ntawm kev hloov pauv lub zog ntawm lub hlwb cell, inhibit qhov kev loj hlob ntawm cov kab mob me me, yog li ua tiav lub hom phiaj ntawm kev xeb.
3 Propionic acid thiab nws cov ntsev
Propionic acid yog ib qho kua roj mono-acid, tsis muaj xim, uas tiv thaiv kev tsim cov β-alanine thiab tiv thaiv kab mob. Cov ntsev propionic acid feem ntau yog sodium propionate thiab calcium propionate, lawv muaj tib lub mechanism preservative, thiab hloov mus ua propionic acid hauv lub cev. Cov molecule propionic acid monomeric tuaj yeem tsim lub siab osmotic siab sab nraum cov hlwb pwm, yog li ntawd cov hlwb pwm qhuav dej, poob kev tsim tawm, thiab tseem tuaj yeem nkag mus rau hauv phab ntsa pwm, thiab tiv thaiv kev ua haujlwm sab hauv.
4 paraben esters (nipagin ester)
Cov tshuaj paraben esters yog methyl paraben, ethyl paraben, propyl paraben, isopropyl paraben, butyl paraben, isobutyl paraben, heptyl paraben, thiab lwm yam. Lub tshuab inhibition ntawm p-hydroxybenzoic acid esters yog: lub microbial cell respiratory system thiab electron transfer enzyme system ua haujlwm raug inhibited, thiab tuaj yeem rhuav tshem cov qauv ntawm microbial cell membrane, yog li ua lub luag haujlwm ntawm antiseptic.
5 Dehydroacetic acid thiab nws cov ntsev sodium
Dehydroacetic acid, cov mis molecular C8H8O4 nws thiab nws cov ntsev sodium yog dawb lossis daj daj crystalline hmoov, muaj peev xwm tua kab mob zoo, tshwj xeeb tshaj yog muaj peev xwm tua kab mob ntawm pwm thiab poov xab. Nws yog ib qho tshuaj preservative acidic thiab tsis zoo rau cov khoom noj tsis muaj zog. Nws ruaj khov rau lub teeb thiab cua sov, degrades rau acetic acid hauv cov kua dej, thiab tsis muaj tshuaj lom rau tib neeg lub cev. Nws yog ib qho tshuaj preservative dav dav thiab siv dav rau kev khaws cia nqaij, ntses, zaub, txiv hmab txiv ntoo, dej haus, ncuav mog qab zib, thiab lwm yam.
6 Sodium lactate
Tsis muaj xim lossis me ntsis daj pob tshab kua, tsis muaj ntxhiab, me ntsis ntsev thiab iab, sib xyaw hauv dej, ethanol, glycerin. Qhov kev sib xyaw dav dav yog 60% -80%, thiab qhov siab tshaj plaws siv yog 30g / KG rau 60% concentration ... Sodium lactate yog ib hom tshuaj tiv thaiv thiab khaws cia tshiab, feem ntau yog siv rau cov nqaij thiab cov khoom noj qaib, uas muaj cov nyhuv inhibitory muaj zog rau cov kab mob zaub mov nqaij. Nws feem ntau yog siv rau cov nqaij ci, nqaij npua, hnyuv ntxwm, qaib, os thiab cov khoom noj qaib thiab cov kua ntses thiab cov khoom brine. Cov mis siv rau kev khaws cia qhov tshiab hauv cov khoom nqaij: sodium lactate: 2%, sodium dehydroacetate 0.2%.
7 Dimethyl fumarate
Nws yog ib hom tshiab ntawm kev tiv thaiv pwmtshuaj tiv thaivuas tau tsim kho zoo heev hauv tsev thiab txawv teb chaws, uas tuaj yeem tiv thaiv ntau dua 30 hom pwm thiab poov xab, thiab nws cov kev ua haujlwm tua kab mob tsis cuam tshuam los ntawm pH tus nqi, nrog rau qhov zoo ntawm kev ua haujlwm siab thiab dav spectrum, kev nyab xeeb siab thiab tus nqi qis. Nws cov kev ua haujlwm tua kab mob thiab tshuaj tua kab mob zoo dua, nrog rau kev ua haujlwm muaj zog ntawm cov kab mob. Nws muaj cov khoom fumigant vim yog sublimation, yog li nws muaj ob lub luag haujlwm ntawm kev sib cuag sterilization thiab fumigation sterilization. Tsis muaj tshuaj lom, nkag mus rau hauv tib neeg lub cev sai sai rau hauv cov khoom ib txwm muaj ntawm tib neeg metabolism fumaric acid, daim ntawv thov ntawm kev rov ua dua zoo.
Lub sijhawm tshaj tawm: Plaub Hlis-01-2022