Tom qab pasteurization, ntim yuav cuam tshuam li cas rau lub txee lub neej thiab tsw ruaj khov ntawm cov khoom?

Tom qab pasteurization, ntim khoom muaj feem cuam tshuam rau lub txee lub neej thiab tsw ruaj khov ntawm cov khoom. Nws lub luag haujlwm feem ntau cuam tshuam txog plaub yam: kev ua haujlwm tsis zoo, kev sib khi khoom, cov khoom siv thiab daim ntawv ntim. Cov hauv qab no yog qhov kev tsom xam tshwj xeeb:

1. Barrier kev ua tau zoo: ncua oxidation thiab microbial paug
Oxygen barrier: Cov pa oxygen kis tau tus nqi (OTR) ntawm cov khoom ntim ncaj qha cuam tshuam rau oxidation tus nqi ntawm cov khoom. Piv txwv li, cov rog thiab cov vitamins nyob rau hauv cov mis nyuj yog nquag oxidation, ua rau ib tug deterioration nyob rau hauv tsw (xws li ib tug rancid saj) thiab ib tug luv luv lub neej txee. High- cov ntaub ntawv thaiv (xws li aluminium foil composite zaj duab xis thiab EVOH multi- txheej co-extruded zaj duab xis) tuaj yeem txo cov pa oxygen nkag mus thiab txuas ntxiv lub neej txee. Cov kev sim qhia tias lub txee lub neej ntawm cov kua mis pasteurized ntim hauv cov ntawv txhuas tuaj yeem txuas ntxiv los ntawm 3 mus rau 5 hnub piv nrog rau hauv cov hnab PE zoo tib yam.

Moisture barrier: Cov dej tsis muaj dej tuaj yeem ua rau cov khoom poob qis (xws li cov kua ntses thickening thiab cais cov kua txiv hmab txiv ntoo), thaum nqus dej noo tuaj yeem ua rau cov kab mob microbial loj hlob. Cov dej vapor kis tus nqi (WVTR) ntawm cov khoom ntim yuav tsum ua kom haum cov yam ntxwv ntawm cov khoom. Piv txwv li, siab -cov kua viscosity yog tsim los siv PET/AL/PE composite films nrog qis WVTR kom muaj kev ruaj ntseg zoo nkauj.

Kev thaiv lub teeb: Ultraviolet rays tuaj yeem ua kom lub cev decomposition ntawm cov vitamins thiab oxidation ntawm cov rog. Lub teeb - cov ntaub ntawv pov thawj (xws li opaque aluminium foil hnab los yog cov yeeb yaj kiab pob tshab nrog ntxiv ultraviolet absorbers) tuaj yeem tiv thaiv qhov tsw ntawm cov khoom. Piv txwv li, yog tias pasteurized dej haus muaj vitamin C, siv lub teeb - pov thawj ntim tuaj yeem txo tus nqi degradation.

2. Sealing cuab yeej: Tiv thaiv cov pa phem thib ob
Microbial barrier: Txawm hais tias pasteurization tuaj yeem tua cov kab mob pathogenic feem ntau, nws tsis tuaj yeem ua kom tsis muaj cua sov- cov kab mob tiv taus (xws li Bacillus stearothermophilus). Yog tias lub ntim tsis raug kaw zoo, cov kab mob uas tsis muaj kab mob lossis cov kab mob sib kis sab nraud tuaj yeem rov ua dua -, ua rau cov khoom tsis zoo. Piv txwv li, yog tias cov khoom noj siv mis tau ntim rau hauv cov thawv ntim tsis zoo, lawv lub txee lub neej tseem yuav luv luv vim Listeria paug hauv cov tub yees.
Kev tswj cov pa roj: Rau cov khoom uas yuav tsum tau hloov pauv huab cua ntim (xws li cov dej haus ua haujlwm uas muaj cov pa roj carbon dioxide), kev sib khi tsis txaus tuaj yeem ua rau cov pa khiav tawm, cuam tshuam rau qhov saj (xws li cov pa roj carbon monoxide tsis muaj zog). Lub hnab nozzle tuaj yeem ua tau zoo sealing kev ua tau zoo thiab txo cov pa pauv los ntawm kub - melt sealing lossis siab - zaus vuam tshuab.

3. Cov khoom siv: Ua kom haum rau cov khoom siv tshuaj lom neeg ntawm cov khoom
Tshuaj tiv thaiv: Cov khoom ntim yuav tsum sib haum nrog cov khoom muaj pes tsawg leeg los tiv thaiv kev tsiv teb tsaws lossis cov tshuaj tiv thaiv. Piv txwv li, kua txiv hmab txiv ntoo acidic (xws li kua txiv qaub) tuaj yeem corrode hlau ntim (xws li cov kaus poom tinplate), thaum lub ntim yas (xws li PET) ruaj khov dua. Tsis tas li ntawd, qee qhov dej haus muaj cov khoom siv electrolytes (xws li sodium thiab potassium), yog li cov khoom siv nrog cov ntsev muaj zog (xws li nylon composite films) yuav tsum tau xaiv.

Lub zog siv tshuab: siab -cov kua viscosity (xws li cov kua txiv lws suav) tuaj yeem ua rau lub ntim tawg vim yog compression thaum lub sij hawm thauj mus los, yog li cov ntaub ntawv uas muaj zog puncture resistance (xws li multi- txheej co-extruded films) yuav tsum tau siv. Cov qauv tsim ntawm lub hnab nozzle tuaj yeem txo qhov siab sab hauv thiab txhim kho lub zog tag nrho los ntawm kev ntxiv dag zog rau sab foob los yog kaum lub foob.

4. Daim ntawv ntim: Ua kom zoo rau cov neeg siv kev paub thiab kev cia khoom
Portability thiab repackaging: Lub teeb yuag tsim ntawm lub hnab nozzle (xws li me me - ntim hnab ntim) ua rau nws yooj yim rau cov neeg siv khoom nqa, thaum txo lub sij hawm raug mob tom qab qhib thiab txo qhov kev pheej hmoo ntawm tsw poob. Piv txwv li, ib zaug xwb - siv lub hnab ntim cov kaus mom kub lub caij tuaj yeem tiv thaiv oxidation thiab kev kis kab mob los ntawm rov qhib lub LIDS.
Txias saw adaptability: Pasteurized khoom feem ntau yuav tsum tau muab cia rau hauv tub yees, thiab cov ntaub ntawv ntim yuav tsum muaj peev xwm tiv taus qis - qhov kub thiab txias (xws li khov ntawm -18℃lossis tub yees ntawm 2-6℃). Piv txwv li, aluminium foil composite zaj duab xis tseem tuaj yeem tswj tau nws qhov yooj yim ntawm qhov kub thiab txias, thaum PE zaj duab xis zoo tib yam tuaj yeem ua nkig thiab tawg.

Kev tiv thaiv ib puag ncig thiab kev ruaj ntseg: Txawm hais tias cov ntaub ntawv degradable (xws li PLA bio-raws li zaj duab xis) yog ib puag ncig tus phooj ywg, lawv qhov kev cuam tshuam kev ua haujlwm yuav qis dua li cov khoom siv ib txwm muaj. Nws yog ib qho tsim nyog kom sib npaug ntawm cov txee lub neej thiab kev tiv thaiv ib puag ncig. Piv txwv li, qee cov kua txiv hmab txiv ntoo siv PLA / PBAT cov yeeb yaj kiab sib xyaw. Los ntawm kev ua kom zoo ntawm cov khaubncaws sab nraud povtseg thiab tuab, lawv tuaj yeem ua kom muaj 6- lub hli txee lub neej thaum txo kev siv yas.

Cov ntaub ntawv siv tau
Cov khoom siv mis nyuj: Cov mis nyuj lub ru tsev yog ntim rau hauv daim ntawv / txhuas / yas sib xyaw pob, ua ke nrog pasteurization thiab tshuaj tsuag txias. Los ntawm kev siab -barrier aluminium foil thiab sealing tsim, nws ua tiav 7-hnub lub tub yees txee lub neej thaum khaws cov kua mis ntuj.
Sauce: Bagged lws suav sauce siv PET/AL/PE multi- txheej zaj duab xis. Kev hloov pauv ntawm lub hnab nozzle ADAPTS rau cov yam ntxwv siab viscosity. Ua ke nrog nitrogen filling (hloov chaw ntim), lub txee lub neej txuas ntxiv mus rau 12 lub hlis.
Cov dej haus ua haujlwm: Cov dej haus ua kis las tau ntim rau hauv lub teeb -cov pov thawj PET lub raj mis lossis cov hnab ntawv aluminium. Los ntawm kev sib xyaw pasteurization thiab aseptic filling cov tswv yim, lawv khaws cov electrolytes thiab vitamins thaum ua tiav lub neej txee ntawm 6 mus rau 9 lub hlis ntawm chav tsev kub.