Freeze-dried durian yog dav siv rau cov khoom ci, cov khoom xyaw tshuaj yej-dej thiab khoom noj txom ncauj. Rehydration ratio ncaj qha qhia txog cov txheej txheem sab hauv porous thiab yog ib qho kev ntsuas tseem ceeb rau cov neeg yuav khoom siab nyob sab nrauv. Rau siab-qab zib Musang-King durian, kev tswj cov txheej txheem tsis raug ua rau cov dej tsis zoo, tsis muaj dej txaus thiab cov tawv nqaij tawv. Ntau lub chaw tsim khoom tsuas yog tsom rau sab nrauv thaum tsis quav ntsej txog kev ua kom rov ua dej, yog li cov khoom tuaj yeem nkag mus rau cov khoom muag qis kawg nkaus xwb.
Pre-freezing txiav txim siab cov dej khov-crystal loj thiab ntxiv cov qauv pore tom qab sublimation. Ultra-ceev freezing yuav tsum zam rau high-qab zib durian. Cov dej khov me me uas tsim los ntawm cov dej khov sai sai tawm hauv qhov nqaim nqaim tom qab sublimation thiab cuam tshuam cov dej molecule nkag mus thiab txo qis kev ua kom rov ua dej. Kev tswj xyuas qeeb ua ntej khov ua rau cov dej khov me me me me thiab ua rau cov dej ntws zoo sib txuas kom rov ua kom dej zoo dua. Txawm li cas los xij, kev khov tsis tuaj yeem qeeb qeeb heev los tiv thaiv cov kua txiv hmab txiv ntoo thiab cov ntaub so ntswg puas.
Tsis txhob blindly caum ceev kom qhuav nyob rau hauv sublimation theem. Sublimation ceev dhau yooj yim tsim cov tawv tawv tawv thiab thaiv cov pores sab hauv. Txais yuav qeeb-sublimation profiles rau cov dej khov ruaj khov khiav tawm thiab khaws cia zoo hauv lub cev ntxeem tau. Txee qhov kub thiab txias yuav tsum nce me ntsis gradient; Lub sijhawm luv luv kub-nce yuav yaj cov suab thaj thiab kaw cov pore channel.
Lub tais-loading thickness tsis tuaj yeem tsis quav ntsej. Cov khaubncaws sab nraud povtseg ntau dhau ua rau cov txheej sab hauv sublimation tsis txaus thiab ua rau lub cev tsis zoo thiab ua rau lub cev rov ua haujlwm tsis zoo. Khaws kom tsim nyog kis tuab rau durian pulp; kis cov khoom xoob thiab tsis txhob hnyav stacking. Tiv thaiv pulp compressing vim compressed raw-cov ntaub ntawv poob ib txwm pores thiab rehydration tsis tuaj yeem txhim kho txawm tias optimized freeze-drying tsis.
Tsis tas li ntawd, txiv hmab txiv ntoo ripeness ua rau qhov sib txawv loj. Tshaj-ripe durian muaj qhov viscosity siab dua thiab tsis muaj dej rov qab txawm tias muaj qhov zoo nkauj khov-drying nkhaus. Factories yuav tsum muab cov txiv hmab txiv ntoo tshiab nruj me ntsis thiab cais durian ntawm txawv ripeness rau cov khoom ywj pheej. Tsis txhob squeezing cov khoom tiav tom qab tso tawm los tiv thaiv cov qauv ntxeem tau yooj yim. Muab cov khoom siv kho vajtse, txheej txheem thiab cov khoom siv raw cov ntaub ntawv tswj kom ruaj khov kom ua tiav cov dej rov ua kom zoo dua los yog sib npaug rau 1: 5.
