Dab tsi yog cov yam ntxwv ntawm sodium diacetate?

Sodium diacetate, tseem hu ua sodium diacetate, yog ib qho dawb-flowing acidic sodium ntsev dav siv los ua zaub mov tsw. Nws yog ib qho crystalline compound uas muaj qhov sib npaug ntawm sodium acetate thiab acetic acid thiab muaj ntxhiab tsw ntxhiab.

Txij li thaum sodium acetate lattice locks dawb acetic acid molecules kom txog thaum lub compound decomposes nyob rau hauv kev daws. Cov txheej txheem no ua rau muaj ntxhiab tsw heev ntawm acetic acid thaum tso cov tsw thaum cov khoom ntub dej.

Sodium Diacetate hmoov, raws li cov khoom noj ntxiv (E262ii), feem ntau yog siv los ua cov khoom noj khoom haus, tsw qab, thiab pH regulator hauv cov khoom noj ntawm cov nqaij liab thiab nqaij qaib. Raws li ib tug preservative, nws yog ib tug pwm inhibitor thiab txias txias nyob rau hauv lub khob cij mov paj, ncua lub txee lub neej ntawm cov khoom tiav.

Hauv kev tsim khoom noj khoom haus, cov khoom noj flavorings yog ib qho ntawm cov lag luam loj tshaj plaws rau cov khoom, uas tau ntxiv rau ntau yam khoom vim nws qhov txawv ntawm vinegary tsw. Cov khoom no suav nrog cov kua qab ntsev, kua txob, kua ntses, ketchup, npaj pluas noj, kua txiv hmab txiv ntoo, thiab cov khoom qab zib. Nws kuj tseem txuas lub txee lub neej ntawm cov khoom no los ntawm inhibiting cov kab mob loj hlob.

Sodium diacetate yog ib qho muaj zog inhibitor ntawm cov kab mob xws li Clostridium botulinum thiab Listeria monocytogenes nquag ntsib hauv cov khoom no. Thaum siv los ua ib qho tsis, nws kuj tuaj yeem siv los ua acidity tswj additive hauv cov nqaij tshiab. Thiab, hauv dej haus, sodium diacetate tuaj yeem siv los ua cov khoom noj.

Sodium lactate lossis sodium lactate, sodium diacetate, thiab poov tshuaj acetate feem ntau lees paub tias yog cov khoom xyaw zaub mov muaj kev nyab xeeb thiab yog cov tshuaj tiv thaiv kev loj hlob ntawm L. monocytogenes. Lactate, acetate, thiab diacetate feem ntau yog siv rau hauv cov nqaij npaj txhij noj (RTE) cov khoom noj nqaij qaib feem ntau los txwv kev loj hlob ntawm Listeria monocytogenes.

Lawv tsis tshua siv rau lwm yam khoom noj rau tib lub hom phiaj. Cov khoom xyaw no tseem muab cov khoom ua haujlwm zoo uas cuam tshuam rau qhov zoo ntawm cov khoom zoo li no, suav nrog cov dej tuav thiab tsw.

Thawj qhov uas yuav tsum nco ntsoov txog cov tshuaj tiv thaiv zoo li no yog tias lawv tsis yog bactericidal; Lawv yog bacteriostatic. Qhov no txhais tau hais tias cov ntsev ntsev no inhibit kev loj hlob tab sis feem ntau tsis tua Listeria.

1. Cov lipophilic acids tsis muaj zog ntawm cov ntsev no yog tsim nyob rau hauv cov kua theem (xws li lactic acid), hla lub cell membrane nyob rau hauv undissociated daim ntawv, thiab dissociate nyob rau hauv lub cell, acidifying sab hauv.

Lub xovtooj tom qab ntawd ua haujlwm txhawm rau txhawm rau H + tawm ntawm lub xovtooj thiab siv lub zog ntawm tes ua li ntawd. Txij li thaum tag nrho cov zog no yog siv nyob rau hauv ciaj sia taus (homeostasis), lub cell muaj tsawg heev zog tshuav rau proliferate.

2. Lactate thiab lwm cov organic ntsev txo cov dej ua haujlwm ntawm cov kab mob, yog li txwv cov dej bioavailable uas hlwb siv hauv lawv cov metabolism. Qhov no yuam cov hlwb mus rau hauv txoj kev ciaj sia, tsis yog hom kev loj hlob.

Kev loj hlob inhibitory cuam tshuam ntawm diacetate thiab lactate coincided nrog kev hloov ntawm aerobic respiration thiab lactate thiab acetate ntau lawm.

Qhov tshwm sim no feem ntau hu ua "kev tawm tswv yim inhibition". Qhov sib npaug ntawm fermentation pom tau hloov mus rau qhov tsis muaj txiaj ntsig zoo, uas tuaj yeem cuam tshuam cov cell proliferation.

Yog tias koj xav txog qhov kev txiav txim siab no tiv thaiv L. monocytogenes hlwb hauv RTE cov khoom noj uas muaj cov lactate, acetate, lossis diacetate, koj tuaj yeem xav txog tias bacteriostasis tshwm sim li cas.

Nws muaj peev xwm hais tias qee cov organic ntsev yog yaj nyob rau hauv lub aqueous theem, tab sis tsuas yog ib feem me me ntawm cov kua qaub tseem undissociated yog hais tias cov zaub mov pH siab tshaj pKa ntawm cov kua qaub.