Nkag siab txog Cov Txheej Txheem Ua Kom Qhuav Rau Cov Khoom Noj

Kev ziab kom qhuav, tseem hu ua lyophilization, yog cov txheej txheem khaws cia dav siv los tshem tawm cov dej noo ntawm cov zaub mov thiab txuas nws lub neej txee. Cov txheej txheem no suav nrog kev khov cov zaub mov thiab tom qab ntawd tshem cov dej khov los ntawm sublimation, hloov dej khov ncaj qha rau hauv dej vapor. Qhov tshwm sim yog lub teeb yuag, cov khoom txee ruaj khov uas khaws nws qhov qub saj, kev ntxhib los mos, thiab cov as-ham.

Txoj Kev Kho Kom Qhuav Qhuav:

1.khov:

Thawj kauj ruam hauv khov ziab yog khov cov zaub mov. Cov zaub mov tau txias sai heev rau qhov kub thiab txias, feem ntau qis dua -30 ° C (-22 ° F), ua rau cov dej hauv cov zaub mov khov.

2.Kev ziab qhuav (Sublimation):

Thaum khov, cov zaub mov yog muab tso rau hauv lub tshuab nqus tsev chamber. Lub siab nyob rau hauv lub chamber yog txo, thiab cua sov yog siv. Qhov chaw qis qis no tso cai rau cov dej khov (ice) hauv cov zaub mov kom sublimate, hloov ntawm cov khoom mus rau lub xeev gaseous yam tsis dhau los ntawm cov kua theem. Tom qab ntawd cov dej vapor raug tshem tawm ntawm cov khoom noj.

3.Secondary Drying (Desorption):

Tom qab thawj zaug ziab, tseem muaj me me ntawm cov dej khi rau hauv cov zaub mov. Qhov kub nce me ntsis, thiab lub tshuab nqus tsev qis yog tswj kom tshem tawm cov dej khi no los ntawm kev desorption.

4.Ntim:

Thaum cov txheej txheem ziab kom qhuav tiav, cov zaub mov tau ntim rau hauv cov thawv ntim cua kom tsis txhob rov nqus dej noo thiab tswj nws qhov ruaj khov.

Qhov zoo ntawm Freeze Drying:

1.Preservation ntawm Nutrients:

Kev ziab kom qhuav khaws cia feem ntau ntawm cov khoom noj khoom haus, suav nrog cov vitamins, minerals, thiab enzymes, vim tias qhov kub tsis tshua muaj siv hauv khov thiab ziab kom txo qis cov as-ham.

2.Retains Flavour thiab Texture:

Cov txheej txheem ziab kom qhuav tso cai rau cov zaub mov khaws nws cov saj qub, aroma, thiab kev ntxhib los mos, ua rau cov khoom rehydrated zoo li cov zaub mov tshiab.

3.Lub teeb yuag thiab ntev txee lub neej:

Cov khoom noj khov-qhuav yog qhov hnyav thiab nqa tau yooj yim, ua rau lawv zoo tagnrho rau cov hnab ev khoom, mus pw hav zoov, thiab khoom noj khoom haus thaum muaj xwm ceev. Lawv muaj lub neej txee ntev dua vim tsis muaj dej noo, kab mob, thiab pwm loj hlob.

4.Rehydration:

Cov khoom noj khov-qhuav tuaj yeem yooj yim rov qab los ntawm kev ntxiv dej. Lawv rov qab tau lawv daim ntawv qub sai sai, ua rau lawv yooj yim rau kev ua noj thiab noj.

Common Freeze-Dried Foods:

Kev ziab kom qhuav yog siv rau ntau yam khoom noj, suav nrog txiv hmab txiv ntoo, zaub, nqaij, khoom noj siv mis, kas fes instant, kua zaub, thiab cov khoom qab zib. Nws yog txheej txheem ntau yam uas tuaj yeem siv rau ntau yam khoom noj.

 

Kev ziab kom qhuav yog cov txheej txheem khaws cia zoo uas tshem tawm cov dej noo ntawm cov zaub mov los ntawm sublimation, tso cai rau kev cia ntev ntev yam tsis muaj kev cuam tshuam saj, kev ntxhib los mos, lossis khoom noj muaj txiaj ntsig. Nws cov txiaj ntsig suav nrog kev khaws cov khoom noj khoom haus, khaws cia ntawm qhov tsw thiab kev ntxhib los mos, lub teeb yuag, thiab yooj yim ntawm rehydration, ua rau nws yog ib qho kev xaiv nrov rau kev tsim cov khoom noj khoom haus qhuav thiab zoo.