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ISebe lezeMpilo lePhondo laseKarnataka lisandula ukuphinda liqinisekise imiqathango yokusetyenziswa kwe-nitrogen engamanzi kwiimveliso zokutya ezifana neebhisikithi ezitshayiweyo kunye ne-ayisikhrim, eyaziswa ekuqaleni kukaMeyi. Esi sigqibo sathathwa emva kokuba intombazana eneminyaka eli-12 ubudala yaseBengaluru iphume umngxuma esiswini sayo emva kokuba itye isonka esine-nitrogen engamanzi.
Ukusetyenziswa kwe-nitrogen engamanzi ekutyeni okulungisiweyo kuye kwanda kwiminyaka yakutshanje, apho ikhemikhali isetyenziselwa ukufaka ifuthe lokutshaya kwezinye ukutya, iidizethi kunye neecocktails.
I-nitrogen engamanzi kwiimveliso zokutya kufuneka iphathwe ngononophelo olukhulu. Oku kungenxa yokuba i-nitrogen kufuneka ipholiswe kubushushu obugqithisileyo obuyi--195.8°C ukuze ibe manzi. Ukuthelekisa, ubushushu kwifriji yasekhaya buyehla bufikelele kwi--18°C okanye kwi--20°C.
Igesi emanzi efrijini inokubangela iqabaka ukuba idibana nolusu kunye namalungu omzimba. I-nitrogen engamanzi iqandisa izicubu ngokukhawuleza, ngoko ke ingasetyenziswa kwiinkqubo zonyango zokutshabalalisa nokususa iintsumpa okanye izicubu ezinomhlaza. Xa i-nitrogen ingena emzimbeni, ijika ibe yigesi ngokukhawuleza xa ubushushu bunyuka. Umlinganiselo wokwanda kwe-nitrogen engamanzi kwi-20 degrees Celsius yi-1:694, oko kuthetha ukuba ilitha e-1 ye-nitrogen engamanzi inokwanda ukuya kwi-694 litres ye-nitrogen kwi-20 degrees Celsius. Oku kukhula ngokukhawuleza kunokukhokelela ekugqobhozeni kwesisu.
“Ngenxa yokuba ayinambala kwaye ayinavumba, abantu basenokuchatshazelwa yiyo bengazi. Njengoko iindawo zokutyela ezininzi zisebenzisa i-nitrogen engamanzi, abantu kufuneka bazi ngale meko ingaqhelekanga baze balandele iingcebiso. Nangona ingaqhelekanga, kwezinye iimeko inokubangela ingozi enkulu.” utshilo uGqr. Atul Gogia, umcebisi ophezulu, isebe lezonyango zangaphakathi, kwiSibhedlele iSir Gangaram.
I-nitrogen engamanzi kufuneka iphathwe ngononophelo olukhulu, kwaye abaqhubi kufuneka basebenzise izixhobo zokukhusela ukuthintela ukwenzakala ngexesha lokulungiselela ukutya. Abo batya ukutya neziselo ezine-nitrogen engamanzi kufuneka baqinisekise ukuba i-nitrogen ichitheke ngokupheleleyo ngaphambi kokuba bayitye. “I-nitrogen engamanzi… ukuba iphathwe kakubi okanye ityiwe ngengozi, inokubangela umonakalo omkhulu kulusu nakwizitho zangaphakathi ngenxa yamaqondo obushushu aphantsi kakhulu anokugcinwa yi-nitrogen engamanzi. Ke ngoko, i-nitrogen engamanzi kunye nomkhenkce owomileyo akufuneki zityiwe ngokuthe ngqo okanye zifike ngqo eluswini oluvezwe ngaphandle,” utshilo u-US Food and Drug Administration kwingxelo. Ukwabongoze abathengisi bokutya ukuba bangayisebenzisi ngaphambi kokuba baphake ukutya.
Igesi mayisetyenziswe kuphela ekuphekeni kwindawo enomoya ococekileyo. Oku kungenxa yokuba ukuvuza kwe-nitrogen kunokususa ioksijini emoyeni, nto leyo ebangela ukungabikho komoya ococekileyo kunye nokufutha. Kwaye ekubeni ingenambala kwaye ingenavumba, ukufunyanwa kokuvuza akuyi kuba lula.
I-nitrogen yigesi engasebenziyo, oko kuthetha ukuba ayisebenzi kwizinto ezininzi, kwaye isetyenziselwa ukugcina ubutsha bokutya okupakishiweyo. Umzekelo, xa ibhegi yeetships zeetapile izaliswe yi-nitrogen, isusa ioksijini ekuyo. Ukutya kudla ngokusebenza neoksijini kwaye kube rhabaxa. Oku kwandisa ubomi beshelufu yemveliso.
Okwesibini, isetyenziswa ngendlela engamanzi ukukhenkceza ngokukhawuleza ukutya okutsha okufana nenyama, iinkukhu kunye neemveliso zobisi. Ukukhenkceza i-nitrogen yokutya kubiza kakhulu xa kuthelekiswa nokukhenkceza kwendabuko kuba ukutya okuninzi kunokukhenkcezwa kwimizuzu embalwa nje. Ukusebenzisa i-nitrogen kuthintela ukwakheka kweekristale zomkhenkce, ezingonakalisa iiseli kwaye zikhuphe amanzi emzimbeni.
Ezi ndlela zimbini zobuchwephesha zivumelekile phantsi komthetho wokhuseleko lokutya welizwe, ovumela ukusetyenziswa kwe-nitrogen kwiintlobo ngeentlobo zokutya, kuquka iimveliso zobisi oluvundisiweyo, ikofu neti esele ilungele ukuselwa, iijusi, kunye neziqhamo ezixotyulweyo nezinqunqiweyo. Lo mthetho awukhankanyi ngokukodwa ukusetyenziswa kwe-nitrogen engamanzi kwiimveliso ezigqityiweyo.
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