Dab tsi preservatives rau cov nqaij ua tiav

Cov nqaij ua tiav xws li sausages, Ham, thiab kho nqaij nyuj yog cov uas tau ntxim siab thoob ntiaj teb rau lawv txoj kev yooj yim thiab nplua nuj tsw. Tab sis dab tsi ua rau lawv tshiab, muaj kev nyab xeeb, thiab txaus siab rau cov khw muag khoom? Lo lus teb nyob rau hauv cov nqaij txuag tau cov nqaij txuag tau cov khoom xyaw- Cov khoom xyaw tsim kom qeeb kev txom nyem, tiv thaiv kab mob kab mob, thiab ntev dua txee lub neej. Hauv cov blog no, peb yuav tshawb txog saumtshuaj nqaSiv hauv cov nqaij ua tiav, lawv ua haujlwm li cas, thiab vim li cas lawv tseem muaj teeb meem niaj hnub ua lag luam.

Txawm hais tias koj yog tus ua nqaij ua nqaij, cov kws kho zaub mov, lossis tsim cov khoom lag luam zoo tuaj yeem ua txhua qhov sib txawv hauv cov khoom lag luam thiab cov neeg siv khoom ntseeg.

 

Vim li cas cov tshuaj txuag tseem ceeb hauv cov nqaij nqaij?

 

Nqaij yog perishable heev. Yog tsis muaj cov tshuaj tiv thaiv kab mob thiab oxidation yuav ua rau muaj kev lwj siab ceev, tawm-ntxhiab, thiab kev pheej hmoo txaus ntshai, thiab kev phom sij, thiab kev phom sij, thiab kev pheej hmoo.

Cov tshuaj tiv thaiv cov txiaj ntsig tseem ceeb:

✅ inhibit txoj kev loj hlob ntawm Leeteria, Clostridium botulinum, pwm, thiab cov kab mob xav tau

✅ khaws cov tsw qab, xim, thiab kev ntxhib los mos

Incess Ua kom lub neej txee thiab txo cov khoom noj khib nyiab

✅ Saib xyuas cov khoom muaj kev nyab xeeb thaum ntim khoom thiab xa tawm

Txhawb Huv Huv-daim ntawv lo thiab ntuj tsim qauv (nrog xaiv cov tshuaj tiv thaiv)

 

Rau cov nqaij processors, xaiv txoj cai tiv thaiv txoj cai txhais tau tias kev ua tau zoo, kev nyab xeeb, thiab cov neeg nyiam nyiam.

 

 

Feem ntau siv tshuaj tiv thaiv hauv cov nqaij

 

1. Sorbic Acid - Muaj Zog Pwm Inhibitor

 

Sorbic acid thiab nws cov ntsev (poov tshuaj sorbate, sodium sorbate) yog nyob ntawm cov feem ntau dav siv tshuaj tiv thaiv hauv kev lag luam khoom noj. Hauv nqaij ua haujlwm, lawv tau ua haujlwm zoo rau pwm, poov xab, thiab cov kab mob aerobic.

Cov microbes no yog cov ua txhaum cai hauv cov nqaij lwj. Sorbic acid kev ua los ntawm inhibiting lawv cov haujlwm metabolic, yog li maj mam choilage thiab txuas lub neej. Nws yog metabolized nyob rau hauv tib neeg lub cev ua pa roj carbon dioxide thiab dej, ua rau nws muaj kev nyab xeeb rau kev noj. Qeb kev siv kev pab raug nyob rau hauv cov nqaij cov khoom tsis tshaj 1G / kg, sib thooj nrog cov qauv kev nyab xeeb thoob ntiaj teb.

 

2. NISIN - Ntuj, sau npe-cov tshuaj tiv thaiv

 

Nisin yog ib txwm tshwm sim antimicrobial peptide tsim los ntawm lacococcus lactis thaum fermentation. Nws yog:

• Ua haujlwm tawm tsam gram-zoo cov kab mob xws li Leeteria thiab Clostridium
• Ruaj khov nyob rau hauv acidic tej yam kev mob
• Pom zoo los ntawm FDA thiab EFSA rau kev siv hauv ntau yam khoom noj

 

Thaum xub thawj siv nyob rau hauv cov khoom noj kaus poom thiab kaus poom khoom, nisin tshuaj tiv thaiv tau muaj pov thawj zoo hauv cov nqaij noj ua tiav, thiab npaj ua kom muaj kev nyab xeeb thiab txhim kho microbial kev nyab xeeb. Ua ib qho tshuaj tiv thaiv ntuj, nws kuj txhawb nqa cov ntawv lo huv thiab cov neeg siv khoom-phooj ywg.

 

3. Acetic Acid - Dual Function thiab Kev Tiv Thaiv Xim

 

Acetic acid, lub ntsiab tivthaiv ntawm vinegar, ua pov thawj muaj zog cov tshuaj tua kab mob thiab cov tshuaj tiv thaiv kab mob thaum ua tiav rau cov nqaij hauv ntau txog li 3%. Cov txiaj ntsig muaj xws li:

• Kev Tshaj Tawm Microbial Kev Loj Hlob
• Tiv thaiv cov pwm stains thiab discoloration
• Txhim kho cov zaub mov kev nyab xeeb

 

However, high concentrations (>3%) yuav cuam tshuam tsis zoo rau cov nqaij xim thiab qab tsw. Txhawm rau txhawm rau qhov no, kev sib xyaw ntawm 3% acetic acid + 3}}% ascorbic acid feem ntau siv. Qhov kev ua khub no tsis yog tswj cov tshuaj tiv thaiv antimicrobial tab sis kuj khaws cov nqaij cov xim liab, txhim kho kev pom zoo thiab txuas ntxiv cov khoom tshiab.

 

 

Kev Loj hlob zuj zus: Nees-Daim Ntawv Qhia Txog Tsev Tshuaj Xyuas

 

Nrog cov neeg siv khoom siv nce siab rau cov khoom lag luam uas muag, cov chaw tsim khoom noj yog txav ntawm cov tshuaj txuag tau zoo xws li:

♦ Kua tshuaj ntsuab

♦ Fermented qab zib derivatives

♦ Cov tshuaj tiv thaiv cog qoob loo (zoo li Rosemary lossis Citrus extract)

♦ Nisin thiab NatamyCy

 

Cov khoom xyaw no haum nrog cov neeg siv khoom nyiam rau cov khoom siv pob tshab, kev ua kom tsawg, thiab cov khoom noj khoom haus tsawg dua, yam tsis muaj kev nyab xeeb zaub mov lossis ua tau zoo.

 

Xaus: Kosing Txoj Cai Pabcuam

 

Thaum nws los txog rau cov nqaij ua tiav, cov tshuaj txuag tsis yog ua haujlwm- lawv tseem ceeb. Los ntawm cov kev xaiv ib txwm nyiam sodium nitrite rau cov kev xaiv huv si niaj hnub zoo linISIN, txhua tus neeg muaj zog ua lub luag haujlwm hauv kev ua kom muaj kev nyab xeeb, kev nyab xeeb, thiab rov hais dua.

 

Ntawm Chemskino, peb muab cov nqaij ua tshuaj khaws cia, ib txwm tsim los ua kom tau raws li koj cov hom phiaj cov khoom lag luam thiab kev lag luam. Txawm hais tias koj xav tau pwm inhibitors, cov neeg sawv cev tua kabmob, lossis cov pab pawg kws tshuaj tua kab mob tuaj yeem pab tsim kev daws teeb meem zoo tagnrho. Tiv tauj peb rau hnub no los tshawb txog peb cov kev daws teeb meem thiab thov cov qauv dawb rau kev kuaj.