Raws li cov tshuaj yej yog tsob ntoo ntuj ntuj, qee qhov ntawm nws cov khoom ua rau nruj cov tshuaj yej nruj.
Yog li ntawd, ntim tshuaj yej ntim tau muaj cov kev xav tau ntawm anti oxidation, noo noo - cov ntaub ntawv ua kom kub, cov xim kub thiab cov roj ua kom zoo thiab roj liab thiab roj liab thiab roj liab.
Anti oxidation
Cov ntsiab lus ntau rau cov pa oxygen hauv pob yuav ua rau oxidative cuam tshuam ntawm qee yam hauv cov tshuaj yej. Piv txwv li, lipid tshuaj yuav oxidize nrog oxygen nyob rau hauv qhov chaw los tsim aldehydes thiab ketones, yog li ua rancid tsw. Yog li ntawd, cov ntsiab lus oxygen hauv tshuaj yej ntim yuav tsum tau tswj tau zoo hauv qab 1%. Nyob rau hauv cov nqe lus ntawm kev ntim thev naus laus zis, ntim khoom siv tau lossis ntim nqus ntim tuaj yeem siv tau los txo cov pa oxygen. Tshuab nqus hluav taws xob yog cov tshuaj yej ntim cov pa tshuaj yej rau hauv lub hnab ntim cua huv si (lossis cov khoom siv nplaub tshev, ua rau muaj qee yam ntawm lub tshuab nqus tsev, thiab tom qab ntawd ntsaws ruaj ruaj rau nws; Tshuab ntau dua yog sau cov roj ntsha li cov pa roj ntsha xws li kev phom sij ntawm cov xim, yog li tiv thaiv cov tshuaj yej thiab khaws nws qub zoo.
Kev kub siab kuj.
Qhov kub yog qhov tseem ceeb cuam tshuam rau qhov zoo ntawm cov tshuaj yej. Qhov kub sib txawv yog 10 ℃, thiab tus nqi ntawm cov tshuaj tiv thaiv tshuaj yog 3 ~ 5 zaug sib txawv. Tshuaj yej yuav cuam tshuam cov oxidation ntawm nws cov ntsiab lus nyob rau hauv qhov kub siab, ua rau muaj kev txo qis ntawm polyphenols thiab lwm cov tshuaj muaj txiaj ntsig thiab cov tshuaj tsis zoo. Raws li kev siv, tshuaj yej cia ntawm qhov kub hauv qab 5 ℃ yog qhov zoo tshaj plaws. Thaum qhov ntsuas kub yog 10 ~ 15 ℃, cov xim tshuaj yej yuav cog cia maj mam, thiab cov txiaj ntsig xim kuj tseem tuaj yeem tswj hwm. Thaum qhov ntsuas kub tshaj 25 ℃, cov xim tshuaj yej yuav hloov sai. Yog li ntawd, tshuaj yej yog qhov tsim nyog rau kev khaws cia ntawm qhov kub tsawg.
noo noo - Ntawv Pov Thawj
Cov dej hauv cov dej tshuaj yej yog qhov nruab nrab ntawm cov hloov pauv ntawm cov tshuaj yej, thiab cov dej qis cov ntsiab lus yog ua kom muaj txiaj ntsig ntawm cov tshuaj yej zoo. Cov ntsiab lus dej hauv cov tshuaj yej yuav tsum tsis pub tshaj 5%, thiab 3% yog qhov yooj yim rau cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim ntawm cov tshuaj yej yog yooj yim rau cov tshuaj yej yog yooj yim ntawm cov tshuaj yej tau yooj yim, tsis tshua muaj ntawm qhov kub siab, tus nqi tsis zoo yuav nrawm nrawm. Yog li ntawd, thaum ntim khoom, peb tuaj yeem xaiv cov yeeb yaj kiab sib xyaw nrog cov yeeb yaj kiab evapation, xws li cov khoom siv yooj yim, xws li cov khoom siv noo noo - Ntawv pov thawj ntim.
ntxoov
Lub teeb tuaj yeem txhawb cov oxidation ntawm chlorophyll, lipid thiab lwm yam tshuaj yej hauv tshuaj yej, thiab ua kom muaj kev laus ntawm cov tshuaj yej. Yog li ntawd, thaum ntim khoom tshuaj yej, lub teeb yuav tsum tau thaiv kom tiv thaiv cov photocatalytic cov tshuaj tiv thaiv ntawm chlorophyll, lipid thiab lwm yam. Ntxiv rau, ultraviolet hluav taws xob kuj tseem yog qhov tseem ceeb ua rau cov tshuaj yej tsis zoo. Txhawm rau kom daws tau cov teeb meem no, thev naus laus zis ntim tau siv tau.
Nyem caj pas
Lub aroma ntawm cov tshuaj yej yog yooj yim heev rau dissipate, thiab yog qhov yooj yim ntawm kev sib xyaw ntawm cov tshuaj yej sab nraud, feem ntau cov tshuaj tsw qab los ntawm kev tsw qab ntawm cov tshuaj yej, uas yuav cuam tshuam rau aroma ntawm cov tshuaj yej. Yog li ntawd, ntim tshuaj yej yuav tsum zam kev khiav tawm ntawm lub ntim thiab nqus tsw ntxhiab los ntawm sab nraud. Tea ntim cov ntaub ntawv yuav tsum muaj qee cov khoom siv roj av.
Lub Sijhawm Post: Oct - 31 - 2022