Freeze-drying, kev tshawb fawb hu ua lyophilization, yog cov txheej txheem khaws cia khoom noj uas cuam tshuam nrog tshem tawm cov dej noo ntawm cov khoom noj los txhim kho lawv lub txee lub neej thaum tswj lawv cov qauv, tsw, thiab khoom noj muaj txiaj ntsig. Cov txheej txheem no yog siv dav hauv kev lag luam khoom noj khoom haus los tsim cov khoom hnyav, txee ruaj khov uas tuaj yeem rov ua dej rau kev noj. Thaum khov-qhuav yog qhov ua tau zoo hauv kev tshem tawm cov dej, nws tsis xaiv tshem cov suab thaj los ntawm khov-qhuav strawberries.
Cov txheej txheem khov-drying muaj ntau theem sib txawv. Ua ntej, cov txiv pos nphuab tau khov kom khov dej hauv lawv cov qauv ntawm tes. Thaum khov, lub siab nyob rau hauv ib puag ncig ib puag ncig raug txo, thiab cua sov yog siv, ua rau cov dej khov rau kev hloov pauv ncaj qha los ntawm cov khoom mus rau cov roj hauv cov txheej txheem hu ua sublimation. Qhov no tshem tawm cov dej khov nab kuab yam tsis tau yaj lawv mus rau hauv cov kua dej, khaws cov khoom noj kom zoo.
Thaum khov-qhuav kom txo tau cov dej ntawm cov txiv pos nphuab, nws tsis hloov cov ntsiab lus ntawm cov khoom seem, nrog rau cov suab thaj. Cov suab thaj muaj nyob rau hauv strawberries, xws li fructose thiab qabzib, yog ib qho tseem ceeb rau lawv lub ntuj qab zib thiab pab txhawb rau tag nrho cov tsw profile. Cov suab thaj no tseem nyob rau hauv khov-qhuav strawberries nyob rau hauv ib daim ntawv concentrated, raws li kev tshem tawm cov dej txhim khu cov txheeb ze concentration ntawm cov kua.
Qhov concentration ntawm cov piam thaj hauvkhov-qhuav strawberriestej zaum yuav tshwm sim ntau dua piv rau lawv cov tshiab counterparts vim qhov txo qis hauv cov ntsiab lus dej. Qhov kev ua kom qab zib no tuaj yeem ua tau zoo hauv qee yam kev siv, vim nws tso cai rau cov txiv hmab txiv ntoo muaj zog dua yam tsis tas yuav ntxiv cov suab thaj lossis cov khoom qab zib. Nws yog ib qho tsim nyog sau cia tias tag nrho cov piam thaj hauv ib qhov hnyav ntawm khov-qhuav strawberries yuav siab dua, tab sis qhov loj me me feem ntau me dua vim tsis muaj dej.
Cov txiv pos nphuab qhuav qhuav yog cov khoom noj txom ncauj nrov thiab muaj nyob hauv ntau daim ntawv thov ua noj vim lawv lub teeb yuag, crispy zoo nkauj, thiab khaus tsw. Lawv feem ntau siv rau hauv pluas tshais cereals, txoj kev sib tov, ci khoom, thiab ua ib qho khoom qab zib. Kev khaws cia ntawm cov suab thaj ntuj los ntawm kev khov-qhuav kom ntseeg tau tias cov yam ntxwv saj ntawm strawberries khaws cia, ua rau lawv muaj ntau yam thiab yooj yim muaj.
Yog tias lub hom phiaj tshwj xeeb los txo cov suab thaj ntawm cov txiv pos nphuab, khov-qhuav ib leeg tsis yog ib txoj hauv kev tsim nyog. Kev xaiv tshem tawm cov suab thaj yuav xav tau cov txheej txheem sib txawv, xws li kev rho tawm suab thaj lossis hloov tshuaj lom neeg. Txawm li cas los xij, cov txheej txheem no tuaj nrog lawv tus kheej cov kev cov nyom thiab tej zaum yuav tsis zoo rau kev khaws cia lub ntuj zoo ntawm strawberries.
Nws yog ib qho tseem ceeb uas yuav tau xav txog lub luag haujlwm ntawm cov suab thaj nyob rau hauv tag nrho cov kev paub ntawm strawberries. Tshaj li qab zib, suab thaj ua rau lub qhov ncauj, aroma, thiab tsw complexity. Hloov cov piam thaj cov ntsiab lus tuaj yeem cuam tshuam qhov kev pom zoo ntawm cov txiv pos nphuab qhuav qhuav thiab yuav tsis ua raws li cov neeg siv khoom nyiam.
Hauv kev xaus, thaum khov-qhuav kom tshem tawm cov dej ntawm strawberries, nws tsis xaiv tshem tawm suab thaj. Lub resulting khov-qhuav strawberries tuav lawv lub ntuj qab zib thiab tsw, muab ntau yam khoom xyaw thiab kav ntev rau ntau yam kev ua noj. Nkag siab txog qhov tsis sib xws ntawm cov txheej txheem khov-qhuav pab ua kom txaus siab rau kev tshawb fawb tom qab cov txheej txheem khaws cia no thiab nws qhov cuam tshuam rau cov txiv hmab txiv ntoo xws li strawberries.
