Lub tshuab nqus tsev ntim yog dab tsi

Lub tshuab nqus tsev ntim, tseem hu ua decompression ntim, yog txhawm rau tshem tawm tag nrho cov huab cua hauv lub thawv ntim thiab muab kaw kom tswj tau qhov siab ntawm decompression hauv lub hnab. Qhov tsis txaus ntawm huab cua yog sib npaug rau cov nyhuv ntawm cov pa oxygen tsawg, kom cov kab mob tsis muaj nyob, thiaj li ua tiav cov zaub mov tshiab thiab tsis muaj kab mob. lub hom phiaj ntawm qhov tshwm sim. Daim ntawv thov muaj xws li lub tshuab nqus tsev ntim rau hauv hnab yas, aluminium foil ntim, iav, yas thiab nws cov khoom ntim khoom sib xyaw, thiab lwm yam. Cov ntaub ntawv ntim tuaj yeem xaiv raws li hom khoom. Txij li cov txiv hmab txiv ntoo yog cov khoom noj tshiab, nws tseem ua pa, thiab qhov siab ntawm hypoxia yuav ua rau cov kab mob physiological. Yog li ntawd, lub tshuab nqus tsev ntim khoom siv tsawg dua rau cov txiv hmab txiv ntoo.

Tswv yim thiab muaj nuj nqi

Lub tshuab nqus tsev ntim yog ib pob uas tiv thaiv cov khoom los ntawm ib puag ncig muaj kuab paug thiab ua kom lub neej ntev ntawm cov khoom noj, uas tuaj yeem txhim kho tus nqi thiab zoo ntawm cov khoom. Lub tshuab nqus tsev ntim tshuab tau tsim nyob rau xyoo 1940s. Txij li thaum polyester thiab polyethylene yas zaj duab xis tau ua tiav rau kev ntim khoom hauv xyoo 1950, lub tshuab nqus tsev ntim tau tsim sai heev.

Hauv kev ua haujlwm ntawm tib neeg lub neej thiab kev ua haujlwm, txhua yam ntawm lub tshuab nqus tsev ntim khoom tuaj yeem pom nyob txhua qhov chaw. Lub teeb yuag, airtight, tshiab-kho, tiv thaiv corrosion, thiab anti-xeb yas nqus ntim ntim npog ntau qhov chaw los ntawm cov zaub mov mus rau tshuaj, knitwear, los ntawm precision khoom tsim rau hlau ua cov nroj tsuag thiab cov chaw soj nstuam. Kev siv dav zuj zus ntawm kev ntim cov hnab yas ntim tau txhawb nqa kev tsim cov tshuab nqus tsev ntim khoom yas thiab muab cov kev xav tau ntau dua rau lawv.

Lub tshuab nqus tsev ntim: lub hom phiaj yog txhawm rau txo cov pa oxygen hauv lub pob, tiv thaiv pwm thiab ua kom tsis zoo ntawm cov khoom ntim khoom noj, tswj cov xim thiab ntxhiab ntawm cov zaub mov, thiab txuas ntxiv lub neej txee.

Lub luag haujlwm tseem ceeb ntawm lub tshuab nqus tsev yog tshem tawm cov pa oxygen los pab tiv thaiv cov zaub mov tsis zoo. Lub hauv paus ntsiab lus yog qhov yooj yim, vim tias cov khoom noj khoom haus tsis zoo yog feem ntau tshwm sim los ntawm cov dej num ntawm cov kab mob, thiab kev ciaj sia ntawm cov kab mob feem ntau (xws li pwm thiab cov poov xab) yuav tsum tau oxygen. Yog lawm, thiab lub tshuab nqus tsev ntim khoom siv lub hauv paus ntsiab lus no kom tshem tawm cov pa oxygen hauv lub Ntim Hnab thiab cov khoom noj khoom haus, kom cov micro-cov khoom poob lawv "kev muaj sia nyob ib puag ncig". Cov kev sim tau ua pov thawj tias: thaum cov pa oxygen concentration hauv lub hnab ntim khoom yog ≤1%, kev loj hlob thiab kev loj hlob ceev ntawm cov kab mob yuav poob qis, thiab thaum cov pa oxygen concentration yog ≤0.5%, feem ntau cov kab mob yuav raug inhibited thiab nres kev yug me nyuam. (Ceeb toom: Lub tshuab nqus tsev ntim tsis tuaj yeem cuam tshuam kev loj hlob ntawm cov kab mob anaerobic thiab cov khoom noj tsis zoo thiab cov xim tsis zoo los ntawm cov tshuaj tiv thaiv enzyme, yog li nws yuav tsum tau ua ke nrog lwm cov kev pabcuam, xws li cov tub yees, ceev-freezing, lub cev qhuav dej, kub kub sterilization, hluav taws xob sterilization, microwave sterilization, ntsev pickled thiab lwm yam.)

Ntxiv nrog rau inhibiting kev loj hlob thiab kev loj hlob ntawm cov kab mob, lub tshuab nqus tsev deoxygenation muaj lwm txoj haujlwm tseem ceeb los tiv thaiv cov zaub mov oxidation. Vim tias cov khoom noj roj muaj ntau cov roj fatty acids tsis txaus, lawv tau oxidized los ntawm oxygen, ua rau cov zaub mov saj thiab tsis zoo. Tsis tas li ntawd, oxidation kuj ua rau cov zaub mov poob ntawm cov vitamins A thiab C, cov khoom tsis ruaj khov hauv cov zaub mov xim raug cuam tshuam los ntawm oxygen, ua rau cov xim tsaus. Yog li, kev tshem tawm cov pa oxygen tuaj yeem tiv thaiv cov zaub mov tsis zoo thiab tswj nws cov xim, aroma, saj thiab khoom noj muaj txiaj ntsig.

Lub luag haujlwm tseem ceeb ntawm lub tshuab nqus tsev ntim khoom ntim tsis yog tsuas yog kev ua haujlwm ntawm kev khaws cov pa oxygen xwb, tab sis kuj tseem ua haujlwm ntawm kev tiv thaiv kev kub ntxhov, huab cua thaiv thiab khaws cia tshiab. Nws tuaj yeem khaws cov xim qub, tsw qab, saj, zoo thiab zoo ntawm cov khoom noj rau lub sijhawm ntev. noj zaub mov muaj nqis. Tsis tas li ntawd, ntau yam khoom noj tsis haum rau lub tshuab nqus tsev, tab sis yuav tsum tau ntim nrog lub tshuab nqus tsev vacuum. Xws li cov zaub mov tsis zoo, cov khoom noj uas yooj yim rau agglomerate, cov khoom noj uas yooj yim deform thiab poob roj, cov khoom noj uas muaj cov npoo ntse lossis cov tawv tawv siab uas yuav ua rau lub hnab ntim khoom, thiab lwm yam. thiab luam ntawv kho kom zoo nkauj ntawm lub hnab ntim khoom.

Lub tshuab nqus tsev ntim cov khoom ntim tau ntim nrog nitrogen, carbon dioxide, oxygen ib qho roj los yog sib tov ntawm ob lossis peb lub gases tom qab lub tshuab nqus tsev. Cov pa roj nitrogen yog cov roj inert, uas ua raws li kev ntim khoom kom muaj lub siab zoo hauv lub hnab kom tsis txhob muaj cua sab nraum lub hnab nkag mus rau hauv lub hnab thiab tiv thaiv cov khoom noj. Nitrogen dioxide tuaj yeem yaj tau yooj yim rau hauv cov rog lossis dej, thiab lub teeb carbonic acid coj los ntawm qhov melting no txwv qee cov mircobials xws li pwm thiab cov kab mob putrefactive. Nws cov pa oxygen tuaj yeem cuam tshuam kev loj hlob thiab kev loj hlob ntawm cov kab mob anaerobic, ua kom cov txiv hmab txiv ntoo thiab zaub tshiab thiab muaj yeeb yuj, thiab cov pa oxygen siab tuaj yeem ua kom cov nqaij tshiab ci liab. Lub freshness ntawm txiv hmab txiv ntoo thiab zaub tsis poob khoom noj khoom haus.

Scope ntawm daim ntawv thov

1. Cov khoom kho mob: hnyuv ntxwm, nqaij npua, nqaij npuas kib, ntsev, thiab lwm yam.

2. Pickled zaub: pickled mustard, qhuav radish, kohlrabi, kimchi, thiab lwm yam.

3. Soy khoom: qhuav taum paj, nqaij qaib, taum paste, thiab lwm yam.

4. Cov khoom noj khoom haus: ci nqaij qaib, ci duck, nqaij nyug nrog ntses, zaub mov kib, thiab lwm yam.

5. Khoom noj khoom haus yooj yim: mov, instant noodle ntub, zaub siav, thiab lwm yam.

6. Cov kaus poom mos: xyoob tua hauv dej ntshiab, txiv hmab txiv ntoo hauv syrup, yim-khoom muaj nqis porridge, thiab lwm yam.