AmaMelika adla ukudla okuningi okucutshungulwa nsuku zonke. Akulungele futhi kulula ukuthutha nokugcina. Ukudla okusetshenzisiwe kudinga ukuvikeleka okuningi, kusukela esitshalweni sokucubungula kuya esitolo, nasekhishini lakho. Ngaphezu kwalokho, ungadinga ukuwagcina okwesikhashana ngaphambi kokuwasebenzisa.
Ukudla okunomile ngokuvamile kufakwe emasakeni nasemabhokisini. Isihluthulelo sokulondolozwa kwesikhashana eside sisusa oksijini ezigulini ngoba ukuvezwa kwe-oksijini kubangela ukuthi ukudla kuhlasele.
Amafutha azohamba ahlambalaza, ahlaziywe ngokungahambisani nokudla okwenzekayo, kanye nemikhiqizo yezinto eziyimpango bese echitha. Kunezindlela ezimbili zokufeza lokhu, ukupakisha okuphambene noma i-nitrogen flushing.
Vula ukupakisha
Isinyathelo sokuqala ekupaketheni okuphuthumayo ukuthola ukudla esikhwameni. Okulandelayo, isikhwama sixhunywe ku-vacuum, futhi umoya ususiwe, okuyiqiniso ukuthi uthatha i-oksijini kanye nayo. Isikhwama sisindiwe, futhi umkhiqizo ulungele ukuba ngamalebula futhi uthunyelwe.
Ukupakisha okuqhubeka njalo kusebenza kahle ngokudla okuqinile okuqinile njengenyama yenkomo yenyama yenyama, kodwa ayisebenzi kahle ukudla okuyinkimbinkimbi, njengama- snack chips kanye nama-crackers. Lokhu kudla kudinga ukuvikelwa ngesikhathi sokuhamba ukuze kungabi ukuchotshozwa noma ukuphulwa. Ukudla okunjengobhontshisi bekhofi onendawo eningi futhi akukwazi ukugonywa ukuba ungene emgqonyeni ongenamoya kungadinga okungaphezu kokupakisha okugunyiwe.
I-nitrogen Flushing
Uma uthatha isikhwama se-snack chips, ungase uzwe futhi uzizwe i-chips ibhaqa nxazonke, futhi kubonakala sengathi kune-air eningi kakhulu esikhwameni kunama-chips wangempela.
Kodwa akufani ngempela nomoya ophefumulayo ngoba iphakheji aliqukethe oksijini. Konke lokho 'emoyeni' kuyi-nitrogen gas.
I-chip kanye nezikhwama zamaswidi azigcwala igesi le-nitrogen nje ngakho libukeka likhulu. Izikhwama zenzelwe indlela yokuvikela ukudla okubucayi ngaphakathi ngaphakathi kokubili ukutholakala kwe-oxygen nokulimala komzimba.
I-nitrogen ithatha indawo ye-oksijeni nama-cushions okuqukethwe.
Ngokungafani ne-oksijeni, i-nitrogen ayithandi ngokudla, ngakho-ke ihlala iqabula isikhathi eside. Okubalulekile ngempela, kodwa i-nitrogen ayithinti ukunambitheka noma ukuthungwa kokudla, ngakho-ke kuphelele ukulondolozwa kokudla. Futhi akukho ukukhathazeka ngegesi le-nitrogen. Kuphephile ngokuphelele. Eqinisweni, uthola i-nitrogen njalo ngoba yenza amaphesenti angaba ngu-70 emoyeni ophefumulayo.
Indlela Esebenza ngayo
Okokuqala, ukudla kwengezwe ephaketheni evulekile, into efana ne-plastic noma isikhwama sami. Okulandelayo, abakhiqizi bezinto zokudla basebenzisa imishini ephoqa umoya ovuthiwe okhejijeni ophuma emasakeni bese uwagcwalisa ngokushesha ngegesi le-nitrogen. Khona-ke, ngaphambi kokuba i-nitrogen inethuba lokubalekela, umshini uvala izikhwama ngokuqinile. Izikhwama zifakwe emabhokisini amakhulu futhi zithunyelwa ezitolo zokudla, ezitolo ezilula, nezindawo zokudlela.
Amaphakheji agcwele i-nitrogen asiza ukuvikela ukudla okunomsoco ngaphakathi uma nje isikhwama sisindiwe. Yiqiniso, uma uvula izikhwama, ukuphunyuka kwe-nitrogen futhi kuthathelwa umoya ovamile ongamaphesenti angu-20 oksijini. Lokhu kusho ukuthi ukudla ngaphakathi akusekuvikelwe futhi kuzoqala ukuwohloka futhi amafutha noma amafutha azoqala ukuhamba.
Ungakwazi ukugcina okunye kokugcina ngokugcina iphakheji ivaliwe nge-twist tie noma isiqeshana, noma ngokubeka ukudla kwisitsha sokuvuselela bese ubeka efrijini, kodwa kungcono ukudla imikhiqizo yokudla esikhathini esifushane.
Imithombo:
ULloyd MA, Hess SJ, Drake MA. "Umphumela wokushisa kwe-nitrogen nokushisa kokugcina endaweni yokunambitheka neshalofu-impilo yobisi oluphelele." J Dairy Sci. 2009 Jun; 92 (6): 2409-22.
I-Marasca E, i-Greetham D, i-Herring SD, i-ID ye-Fisk. "Impact of nitrogen ukuqhuma kanye nokukhethwa kwamafutha ekuqhubekisweni kwe-lipid oxidation emahlathini ama-potato crisps angahlanjululwa." Ukudla Chem. 2016 Meyi 15; 199: 81-6.