Ntxim rau lub cev ntawm E202

E202 yog cov potassium ntsev ntawm sorbic acid. Cov organic acid no muaj nyob rau hauv cov kua txiv hmab txiv ntoo ntawm cov ntoo tshauv, thiab thawj zaug cais los ntawm lub yim hli ntuj Hoffmann hauv xyoo 1859, qhov tseeb, nws lub npe raug muab tso rau hauv lub npe ntawm Latin lub npe ntawm Rowan genus - Sorbus. Thawj cov khoom cua sorbic acid tau coj los ua ke thaum xyoo 1900 los ntawm Oscar Döbner. Salts ntawm no acid yog tau los ntawm nws kev sib raug zoo nrog alkalis. Lub tebchaw tau hu ua sorbates. Sorbates ntawm potassium, calcium thiab sodium, as Well as acid nws tus kheej, yog siv raws li ib tug preservative nyob rau hauv cov zaub mov, cosmetic thiab pharmacological industries, vim hais tias cov tshuaj no tuaj yeem ua rau tus kabmob pwm thiab cov poov xab ntsev, thiab lwm cov kabmob.

Tus e202 nyob qhov twg?

Qhov no yog ib qho kev tiv thaiv ntau heev. Nws yog siv hauv kev npaj cov khoom noj khoom haus xws li:

• mayonnaise thiab mayonnaise sauces;
• cheese;
• hnyuv ntxwm thiab nqaij cov khoom tiav tiav ;
• zaub thiab txiv hmab txiv ntoo preserves;
• kua txiv;
• fillers rau yogurt;
• khoom qab zib thiab cov khoom noj;
• dej cawv tsis yog;
• caw.

Tsis tas li ntawd, poov tshuaj sorbate yog siv hauv tshuaj pleev ib ce rau kev npaj tshuaj zawv plaub hau, tshuaj pleev, cream. Feem ntau, cov tshuaj hu ua Potassium sorbate yog siv nrog lwm cov tshuaj txuag, kom cov nyob deb ntawm cov tshuaj tsis zoo yuav ntxiv rau cov khoom me me.

Yog E202 teeb meem los yog tsis?

Raws li cov khoom noj E202 siv txij nruab nrab ntawm lub xyoo pua xeem, tab sis tseem tsis muaj cov lus qhia ntxaws txog nws cov teeb meem ntawm tib neeg lub cev. Thaum lub sij hawm tag nrho ntawm kev siv E202, qhov tsuas tshwm sim ntawm qhov teeb meem tshwm sim los ntawm qhov no ntxiv yog kev txhaum fab tshuaj, uas qee zaum tshwm sim thaum nws raug siv.

Txawm li cas los xij, muaj ib qho kev xav tias kev siv cov khoom ntxhov siab yuav ua teeb meem. Tom qab tag nrho, lawv cov kab mob bacteriostatic (tsis pub cov kab mob ua rau cov kab mob) thiab cov khoom txawb tau zoo raws li qhov tseeb tias preservatives txhaum cov txheej txheem metabolic, inhibit cov synthesis ntawm cov nqaijrog thiab ua kom puas ntawm lub cell daim ntawm cov kab mob no protozoan. Tib neeg lub cev nyuab dua, tab sis cov tshuaj zoo li E202 tuaj yeem muaj kev cuam tshuam rau nws. Yog li ntawd, lo lus nug ntawm seb E202 puas tsim kev puas tsuaj yog tseem qhib.

Raws li cov kev xav no, tus nqi ntawm potassium sorbate nyob rau hauv cov khoom noj khoom haus yog nruj me ntsis rau ib tug xov tooj ntawm cov ntawv cog lus thoob ntiaj teb thiab cov ntaub ntawv. Qhov nruab nrab, nws cov ntsiab lus nyob rau hauv cov zaub mov yuav tsum tsis txhob muaj ntau tshaj li 0.2 g rau 1.5 g ib kilogram ntawm tiav cov khoom.