Ntxiv nrog rau cov pa -} {{{{} Preserving fitting ntim, cov khoom siv aroment, thiab cov duab thiab cov khoom noj rau lub sijhawm ntev. Tus nqi noj haus. In addition, there are many foods that are not suitable for vacuum packaging and must be vacuum-filled packaging. Xws li crunchy thiab seagile cov zaub mov, cov khoom noj uas yooj yim rau hauv lub hnab ntim khoom, thiab lwm yam tuaj yeem tiv thaiv cov zaub mov los ntawm kev tsoo thiab deformed nyob rau hauv siab yam tsis muaj kev cuam tshuam rau cov tsos ntawm lub hnab ntim khoom thiab kev luam ntawv kho kom zoo nkauj. Lub nqus tsev tshuab hluav taws xob tau ntim nrog ib qho roj ntawm nitrogen, carbon dioxide, oxygen lossis peb pa roj tom qab tau nqus. Cov nitrogen yog cov roj hauv qab, uas ua si lub luag haujlwm ntawm lub hnab kom tiv thaiv huab cua sab nraud ntawm lub hnab thiab ua si cov nyhuv tiv thaiv rau cov zaub mov. Cov pa roj carbon dioxide tuaj yeem yaj nyob rau ntau cov rog lossis dej, thiab nws tuaj yeem hloov mus rau hauv cov accbonic acid, uas muaj cov kev ua ntawm cov pwm thiab lwm yam kab mob. Cov pa tawm tuaj yeem inhibit txoj kev loj hlob thiab luam ntawm anaerobic kab mob, thiab ua kom cov txiv hmab txiv ntoo tshiab thiab zaub ntsuab. Lub siab siab ntawm cov pa tuaj yeem ua kom cov nqaij liab liab liab.
