Zakudya zam'chitini zimatha kusungidwa kwa nthawi yayitali popanda zoteteza

"Chitsulochi chapangidwa kwa nthawi yoposa chaka chimodzi, n'chifukwa chiyani chikadali mkati mwashelufu? Kodi chikadali chodyedwa? Kodi muli ndi zotetezera zambiri mmenemo? Kodi izi zingakhale zotetezeka?" Ogula ambiri adzakhudzidwa ndi kusungidwa kwa nthawi yayitali. Mafunso ofananawo amabwera kuchokera ku chakudya cham'chitini, koma kwenikweni chakudya cham'zitini chikhoza kusungidwa kwa nthawi yaitali kupyolera mu kusabereka kwamalonda.

Chakudya cham'chitini chimatanthawuza zinthu zopangira zakudya zomwe zidapangidwa kale, zam'chitini ndikumata zitini zachitsulo, mabotolo agalasi, mapulasitiki ndi mbiya zina, kenako chosawilitsidwa kuti akwaniritse sterility yamalonda ndipo amatha kusungidwa kutentha kwa nthawi yayitali. Kusakaniza kwa chakudya cham'chitini kumagawidwa m'njira ziwiri: chakudya chochepa cha asidi chokhala ndi pH mtengo woposa 4.6 chiyenera kutsekedwa ndi kutentha kwakukulu (pafupifupi 118 ° C-121 ° C), ndi chakudya cha acidic chokhala ndi pH pansi pa 4.6, monga zipatso zamzitini, ziyenera kusungidwa (95 ° C-100 ° C).

Anthu ena atha kukayikiranso ngati zakudya zomwe zili m'zakudya zimawonongekanso chakudya cham'chitini chikawotchedwa ndi kutentha kwambiri? Kodi chakudya cham'zitini sichikhalanso ndi thanzi? Izi zimayamba ndi zomwe ndi kusabereka kwamalonda.

Malinga ndi "Canned Food Industry Handbook" lofalitsidwa ndi China Light Industry Press, sterility yamalonda imatanthawuza kuti zakudya zosiyanasiyana pambuyo pozika ndikusindikiza zimakhala ndi pH yosiyana ndi mabakiteriya osiyanasiyana omwe amanyamula okha. Pambuyo kuyezetsa sayansi ndi kuwerengera okhwima, pambuyo zolimbitsa yolera yotseketsa ndi kuzirala pa kutentha ndi nthawi zosiyanasiyana, vacuum inayake aumbike, ndi tizilombo toyambitsa matenda ndi mabakiteriya spoilage mu akhoza anaphedwa mwa njira yolera yotseketsa, ndi zakudya ndi kukoma kwa chakudya palokha zimasungidwa kwambiri. Lili ndi phindu pazamalonda pa nthawi ya alumali ya chakudya. Choncho, njira yotseketsa chakudya cham'chitini sichimapha mabakiteriya onse, koma imangoyang'ana mabakiteriya a tizilombo toyambitsa matenda ndi mabakiteriya owononga, kusunga zakudya, komanso njira yochepetsera zakudya zambiri ndi njira yophika, kupanga mtundu wawo, fungo ndi kukoma bwino. Zonenepa, zopatsa thanzi komanso zokoma kwambiri.

Choncho, kusunga kwa nthawi yaitali kwa chakudya cham'chitini kumatha kuzindikirika pambuyo pokonzekera, kuyika kumalo, kusindikiza ndi kutseketsa, kotero chakudya cham'chitini sichiyenera kuwonjezera zotetezera ndipo zikhoza kudyedwa bwinobwino.