Ua ntej, opacity
Ntxiv rau qhov ua rau muaj kev cuam tshuam tsis zoo hauv cov zaub mov, lub teeb tuaj yeem ua rau muaj kev hloov pauv hauv cov protein thiab cov amino acids.
Raws li kev tshawb fawb soj ntsuam, qhov poob ntawm cov vitamin C hauv pob tshab iav fwj mis yog 14 npaug ntau dua li cov mis nyuj tsaus nti, lub teeb tseem yuav ua rau cov mis nyuj tsim oxidative tsw, thiab nuclide, methionine thiab lwm yam cleavage thiab poob ntawm cov khoom noj khoom haus, qhov opacity ntawm tinplate cov kaus poom ua rau khaws cia tus nqi ntawm vitamin C siab tshaj plaws.
Thib ob, zoo sealing
Qhov thaiv ntawm cov ntim ntim rau huab cua thiab lwm yam roj av tsis zoo yog qhov tseem ceeb heev rau kev khaws cia ntawm cov as-ham thiab cov txiaj ntsig zoo.
Muab piv rau ntau lub ntim ntim cov kua txiv hmab txiv ntoo qhia tau hais tias cov pa oxygen transmittance ntawm lub thawv ncaj qha cuam tshuam rau cov kua txiv hmab txiv ntoo browning thiab khaws cia ntawm cov vitamin C. Cov kaus poom hlau, iav fwj, aluminium foil laminates thiab cartons uas tsis tshua muaj oxygen kis tau tus nqi tau zoo khaws cia ntawm vitamin C, ntawm cov kaus poom hlau yog qhov zoo tshaj plaws.
Thib peb, txo cov nyhuv ntawm tin
Lub tin nyob rau sab hauv phab ntsa ntawm tinplate yuav cuam tshuam nrog cov pa oxygen seem hauv lub thawv thaum lub sij hawm txhaws, txo txoj hauv kev ntawm oxidation ntawm cov khoom xyaw.
Qhov txo qis ntawm cov tin muaj qhov zoo khaws cia rau qhov tsw thiab xim ntawm cov txiv hmab txiv ntoo thiab cov kua txiv hmab txiv ntoo, yog li cov kua txiv hmab txiv ntoo ntim rau hauv cov kaus poom uas tsis muaj xim hlau yog cov khoom noj zoo dua li cov kua txiv hmab txiv ntoo uas ntim rau hauv lwm cov khoom ntim, cov xim av hloov me ntsis, kev lees paub ntawm qhov tsw zoo yog qhov zoo dua, thiab lub sijhawm cia yog txuas ntxiv.
