Sorbic acid thiab nws cov khoom

Sorbic acid thiab nws cov khoom
Sorbic acid thiab nws cov khoom
Anonim

Sorbic acid E200 yog cov zaub mov khaws cia. Muaj kev sib tham tas li nyob ib puag ncig nws. Qee tus sib cav tias nws muaj kev phom sij heev, lwm tus pom tsis muaj laj thawj rau kev txhawj xeeb. Nyob rau lub hauv paus no muaj kev sib cav tsis tu ncua. Yog li cia peb tshem qhov no los ntawm saib cov ntaub ntawv tshawb fawb.

Sorbic acid
Sorbic acid

Cov tshuaj no yog cov siv lead ua me me uas tsis yaj tshwj xeeb hauv dej. Sorbic acid belongs rau qeb ntawm cov khoom ntawm lub hauv paus chiv keeb. Lub caij tshuav nws lub npe mus rau lo lus Latin "Sorbus" (los txhais ua Lavxias teb sab - "rowan").

Cov tshuaj tiv thaiv no tau tsim nyob rau hauv nruab nrab-caug xyoo pua los ntawm German chemist hu ua August Hoffmann. Nws ua nws nrog kev pab ntawm rowan kua txiv. Tsis muaj tsawg tus kws tshawb fawb nto moo, qee yam Oscar Denber, tau txais cov khoom no synthetically thaum pib ntawm lub xyoo pua nees nkaum. Nws ua qhov no los ntawm kev siv Knoevenagel condensation mechanism raws li carboxylic malonic acid, nrog rau croton aldehyde. Yog li, sorbic acid tau dhau los ua muaj rau kev tsim khoom ntawm kev lag luam. Niaj hnub no, nws tau txais los ntawm kev siv ketene condensation mechanism.

sorbic acid raug mob
sorbic acid raug mob

Cov tshuaj tiv thaiv ntuj no muaj cov yam ntxwv tshwj xeeb vim nws muaj pes tsawg leeg. Ib qho ntawm nws cov txiaj ntsig yog nws cov khoom siv tshuaj tua kab mob. Vim qhov tshwj xeeb no, sorbic acid tiv thaiv kev txhim kho ntawm ntau yam kab mob pathogenic. Nws tseem yog ib qho tseem ceeb uas tsis muaj cov tshuaj lom neeg muaj pes tsawg leeg tau sau tseg hauv cov tshuaj no. Cov kev tshawb fawb thiab kev sim ua tsis tau ua rau kev tshawb pom ntawm cov tshuaj carcinogenic hauv cov qauv ntawm cov kua qaub no.

Tag nrho cov khoom nquag uas ua rau cov khoom khaws cia tau siv dav hauv kev tsim cov khoom noj thiab ntau yam dej qab zib. Lub txee lub neej ntawm cov khoom noj khoom haus uas muaj cov ntsiab lus no tau nce ntxiv. Tsis tas li, sorbic acid tsis hloov cov khoom organoleptic ntawm cov khoom lawv tus kheej, uas qee zaum dhau los ua qhov tseem ceeb tshaj plaws.

Tam sim no, kev siv cov tshuaj no tsis txwv rau European Union, Tebchaws Asmeskas, thiab Lavxias Federation. Cov tshuaj khaws cia yog siv ob qho tib si los ua kom cov zaub mov ruaj khov (xws li ci thiab khoom qab zib) thiab ua dej qab zib (xws li cawv thiab tsis muaj cawv).

sorbic acid e200
sorbic acid e200

Hauv cov khoom noj nqaij thiab hnyuv ntxwm, cheeses thiab khoom noj siv mis, nrog rau hauv caviar, E200 kuj tuaj yeem pom ntau zaus. Qhov no yog vim lub fact tias cov tshuaj tiv thaiv cov tsos ntawm pwm. Rau cov neeg tsim khoom ntawm cov khoom saum toj no, qhov tseeb no yog qhov nthuav dav tseem ceeb!

Cov no yog cov txiaj ntsig uassorbic acid. Kuj tseem muaj teeb meem los ntawm nws hauv qee kis. Empirically, nws tau pom tias muaj pes tsawg leeg ntawm E200 preservative tuaj yeem ua rau muaj kev tsis haum tshuaj (qee zaum tau hais tawm thiab ntev). Tab sis! Cov kws kho mob tau txiav txim siab qhov tso cai npaum li cas ntawm cov tshuaj no. Nws cov nyiaj yuav tsum tsis pub tshaj li ntawm nees nkaum tsib milligrams ib kilogram ntawm tib neeg qhov hnyav. Qhov tseeb, cov neeg tsim khoom noj tau paub txog txoj cai no thiab tsis txhob siv cov tshuaj no ntau.

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