Freeze-ziab khoom yog nrov heev niaj hnub no hauv Tebchaws Europe thiab Asmeskas. Hauv Lavxias, lawv tab tom nyuam qhuav pib kov yeej txoj kev lag luam. Cov kws qhia zaub mov noj mov thiab cov neeg txhawb nqa kom noj qab haus huv tshaj tawm tias cov khoom no tsis tsuas khaws tag nrho cov khoom muaj txiaj ntsig ntawm cov tshuaj tshiab, tab sis kuj tseem tau zom los ntawm lub cev txawm tias ua ntej lawv nkag mus rau hauv lub plab.
Cov khoom lag luam li cas sublimated
Sublimation yog lub cev txheej txheem ntawm kev hloov ntawm ib yam khoom los ntawm qhov khoom mus rau lub xeev gaseous, hla dhau cov theem ua kua. Niaj hnub no, nws tau raug siv los khaws cov khoom noj nrog txhua qhov zoo thiab cov vitamins rau lub sijhawm ntev.
Cov txheej txheem sublimation tau tsim los ntawm Lavxias mining kws ua choj Lappa-Starzhenetsky rov qab hauv 20s ntawm lub xyoo pua xeem. Thiab 40 xyoo tom qab, nws tau pib siv hauv kev tsim cov khoom lag luam rau cov neeg geologist, cov neeg tshawb xyuas lub hnub qub lossis cov neeg hauv chaw nruab ntug.
Txhawm rau sublimate ib qho khoom tshwj xeeb, nws yog sai heev txias rau qhov kub txog -190 ° C, thiab tom qab ntawd noo noo tau khov tawm ntawm nws hauv cov tshuab ziab khaub ncaws tshwj xeeb. Ntxiv mus, ntau dua qhov khov txias, qhov tsawg dua cov dej khov khov tsim yuav thiab, yog li ntawd, ntau dua qhov ua tau zoo ntawm cov khoom lag luam sublimated.
Cov khoom tau txais los ntawm cov kev ua no ua kaum zaus sib dua li qhov qub, thiab nws cov ntsiab lus noo tsis pub dhau 8-10%. Nyob rau tib lub sijhawm, kwv yees li 99% ntawm tag nrho cov vitamins, minerals, enzymes thiab lwm yam tshuaj lom neeg muaj sia nyob hauv nws, vim hais tias cov txheej txheem sublimation tsis suav nrog kev kho cua sov.
Ntim thiab khaws cia ntawm cov khoom khov-qhuav
Cov khoom tiav khov-ziab yog muab tso rau hauv tshwj xeeb peb-txheej pob raws cov ntawv ci txhuas, uas tau ntim nrog cov roj nitrogen. Cov tshuaj kawg, tau ntawv pov thawj raws li GOST, tam sim ntawd yaj thaum lub pob qhib thiab tsis muaj qhov cuam tshuam rau qhov zoo ntawm lub ntsiab lus. Qhov no yog vim li cas cov zaub mov khov-khov tsis tas yuav tsum yees kom txias. Txawm li cas los xij, txhua ntawm lawv muaj nws tus kheej tas sijhawm. Cov zaub thiab txiv ntoo, piv txwv, yog khaws cia li 2 xyoos, thiab cov zaub mov mis rau 13 hlis.
Cov txiaj ntsig thiab kev phom sij ntawm cov zaub mov khov-qhuav
Txhua yam khoom muaj peev xwm yuav sublimated niaj hnub no: berries, txiv hmab txiv ntoo, zaub, nqaij, ntses, mis, butter, cereals, kua thiab txawm tias dej cawv. Cov kua dej yog sublimated ua hmoov, los ntawm cov granules uas yog tom qab ntawd feem ntau tsim, thiab cov khoom lag luam - ob qho tib si rau hauv cov hmoov thiab mus rau hauv me me.
Vim tias lawv lub teeb yuag, kev ntim khoom yooj yim, cov ntsiab lus zoo ntawm cov khoom noj muaj txiaj ntsig thiab lub neej ntev ntev yam tsis muaj lub tub yees, khoom noj txias-txias yog qhov tseem ceeb rau kev yos hav zoov lossis taug kev deb. Qee tus ntawm lawv, xws li kua txiv kab ntxwv beet, muaj ntau yam zoo siab los coj hauv daim ntawv khov-qhuav dua li tshiab. Hauv qhov no, nws txaus los sau lawv nrog cov dej yuav tsum tau.
Qhov siab dua hauv dej kub, qhov nrawm nrawm-khov cov khoom khov yuav rov qab los hauv ntim.
Cov phom sij ntawm cov khoom lag luam zoo li no rau lub cev yuav dag nyob rau hauv qhov chaw tsim khoom ua txhaum kev cai sublimation lossis kev siv cov khoom siv qis. Tsuas yog tus kws tshaj lij yuav tuaj yeem txiav txim siab qhov zoo ntawm cov khoom khov-qhuav.
