Ingabe Ukukhathazeka NgezeMpilo NgeziNitrate Kungaphezu Kweqile?
I-nitites ne-nitrites yizinhlanganisela zamakhemikhali ezivame ukusetshenziswa ekukhiqizeni imikhiqizo yenyama ephilisiwe njenge-bacon nezinja ezishisayo.
Iningi eliningi liye lachithwa lixoxisana nomqondo wokuthi i-nitrate ne-nitrites imbi kuwe, futhi abakhiqizi bokudla baye bafaka zonke izinhlobo zemikhiqizo okuthiwa "i-nitrate-free" ukuze bahlangabezane nesidingo somthengi esibangele.
Kodwa lokho okungazi ukuthi akukhona nje ukuthi ukwesaba ngaphezu kwe-nitrate kunqotshwa ngokuphelele, kodwa lezi "imikhiqizo engenayo i-nitrate" ingakwazi ukuqukatha i-nitrate ngaphezulu kaningi kunemikhiqizo evamile.
Akukona nje ukuthi kodwa inja elishisayo engenayo i-nitrate ingase ibe yingozi kakhulu yokugulisa kuneyodwa.
I-Nitrates nokulondoloza ukudla
Ama-nitrate asetshenziselwa ukuphulukisa, okuyinto isigaba esibanzi samasu okugcina ukudla, ikakhulukazi inyama nenhlanzi, okubandakanya ukusetshenziswa kasawoti, ushukela, noma ukuphelelwa amandla kwamanzi. Esikhathini ngasinye, umgomo wukukwenza ukudla kungathandeki kuma- bacterium abangela ukudla okuphazamisayo .
Lokhu kusebenza ngoba amabhaktheriya ayilwanyana ezincane ezidinga, phakathi kwezinye izinto, umswakama, oksijini, nokudla. Thatha enye yalezi zinto bese zifa.
Kuhlukile kulo mthetho, futhi kuhilela uhlobo lwebhaktheriya elingahlala kuphela endaweni engenawo umoya-mpilo. Sizokukhuluma ngalokhu ngomzuzwana.
Usawoti njengesilondolozo sokudla
Enye yezindlela zakuqala zokuphulukisa ukudla kwakuhilela ukusetshenziswa kasawoti . Usawoti uvimbela ukudla okuphazamisayo ngokusebenzisa inqubo eyaziwa ngokuthi i- osmosis , lapho ngokuyinhloko ithola umswakama emzimbeni we-bacteria, iwabulale ngokuphelelwa amandla kwamanzi.
I-nitrate ye-sodium uhlobo losawoti olwenzekayo njengesilondolozi sokudla esiphumelelayo. Amaminerali okwenzeka ngokwemvelo, i-nitrate ye-sodium ikhona kuzo zonke izinhlobo zemifino ( izimpande ezimpande ezinjenge-izaqathe kanye nemifino eluhlaza njengesilimo esidliwayo esinamagatsha anamanzi nesipinashi) kanye nazo zonke izinhlobo zezithelo nezinhlamvu. Ngokuyinhloko, noma yini ekhula emhlabathini idonsa i-nitrate ye-sodium ngaphandle kwenhlabathi.
Uma lokhu kubonakala kungavamile, khumbula ukuthi igama elithi nitrate libhekisela ekwakheni elenziwe nge-nitrogen, okuyingxenye enkulu kakhulu emkhathini wethu. Njalo uma uthatha umoya, uphefumula amaphesenti angu-78 nitrogen. Inhlabathi ngokwayo ilayishwe ngezinto.
Ama-Nitrate namaNitrit
Esinye sezinto ezenzeka lapho i-nitrate ye-sodium isetshenziswa njenge-agent ephulukisa ukuthi i- nitrate ye-sodium ishintshelwe ku-nitridi nitrite . I-nitrite ye-sodium enezinhlobo ze-antimicrobial ezenza kube yisivikelo esihle.
Ngokuthakazelisayo, i-nitrate ye-sodium esiyidla izithelo, imifino kanye nezinhlamvu nazo ziguqulwa ku-nitrium nitrite ngenqubo yokugaya ukudla. Ngamanye amazwi, lapho sidla izithelo, imifino noma okusanhlamvu, imizimba yethu iveza i-nitrium nitrite.
Ama-nitrit and Cancer
Emashumini ambalwa eminyaka adlule, abanye abacwaningi bakhulume ukuthi kungenzeka ukuthi i-nitrites ingaxhunyaniswa nomdlavuza emahakatheni okubhubhisa. Lesi siphakamiso sithole ukunakwa okuningi kwezindaba. Yikuphi okwakutholwa kancane, yilokho okwenziwa lapho ucwaningo oluqhubekayo lwembula ukuthi bekungalungile. Ngempela, i-National Academy of Sciences, i-American Cancer Society kanye neNational Research Council bonke bayavuma ukuthi abukho ubufakazi bokuthi umdlavuza ubungozi ekudleni i-sodium nitrite.
Imikhiqizo Engenayo I-Nitrate
Pho kuthiwani ngabo bonke labo okuthiwa "yi-nitrate-free" izinja ezishisayo, ubhekeni nezinye izinto ezibizwa ngokuthi "imikhiqizo engavunyelwe"? Njengoba izinja ezishisayo ezingenakunyakaziswa zingenakulinganiswa kubathengi, kuyinto engavamile ngempela ukuthola umkhiqizo ongenalo ngokuphelele we-nitrate. Esikhundleni salokho, abakhiqizi benza izimangalo ezinjengokuthi "azikho izitrate ezengeziwe."
Okuyiqiniso ukuthi izinkampani ezenza izinja ezishisayo ezingenayo i-nitrate kufanele zisebenzise okuthile ukufaka esikhundleni se-nitrate ye-sodium. Ijusi lesilimo esidliwayo esinamagatsha anamanzi kuyisinqumo esithandwayo Futhi ukuqagela ukuthi yiliphi i-celery juice equkethe eziningi? I-nitrate ye-sodium. Futhi ukuqagela ukuthi yini leyo nitrate ye-sodium ephenduka uma uyidla? I-nitrite ye-sodium!
Njengoba sishilo ekuqaleni, isilimo esidliwayo esinamagatsha anamanzi kungumthombo wemvelo we-nitrate nitrate. (Phawula ukuthi akekho okwamanje obiza ukuthi isilimo esidliwayo esinamagatsha anamanzi sibangela umdlavuza noma ukuthi abantu kufanele banciphise ukudla kwabo ngesilimo esidliwayo esinamagatsha anamanzi.) Kodwa ngokufaka ijusi yesilimo esidliwa yizinja ezishisayo, abakhiqizi bangenza imikhiqizo ilayishwe i-nitrate ye-sodium ngenkathi ikwazi ngokomthetho ukufaka isicelo "akukho okungeziwe nitrate. " Ngoba wonke ama-nitrate asemanzini esilimo esidliwayo esinamagatsha anamanzi.
Eqinisweni, le mikhiqizo okuthiwa "yemvelo" noma "eziphilayo" ngezinye izikhathi iqukethe i-nitrate ye-sodium kabili, ngisho ne-nitrate ye-sodium ephindwe kabili, njengemikhiqizo evamile.
Ama-nitrit and Botulism
Ngakho i-nitrate ne-nitrites yomibili engenabungozi futhi ejwayelekile. Kodwa ingabe kungenzeka ngempela ukuthi ukudla ama-nitrate-mahhala kungaba yingozi ngaphezu kokudla ukudla okuqukethe i-nitrate sodium? Impendulo inguyebo.
Impahla eyodwa ekhethekile ye-sodium nitrite yukuthi kuvimbela ukukhula kwe- Clostridium botulinum . Lawa ma-bacteria akhiqiza ubuthi lwe-botulism, enye yezinto ezibulalayo kunazo zonke eziziwa, ezibangela ukukhubazeka okungaholela ekuhlulekeni kokuphefumula.
I-Clostridium botulinum iyigciwane eliyingqayizivele ngoba ngokungafani nezinambuzane eziningi, idinga indawo engenawo umoya-mpilo ukuhlala. Uma ishaya umoya, ifa. Ngakho-ke kuvame ukuvela ekudleni okusemathinini, ukudla okuphazamisiwe, i-garlic egcinwe ngamafutha kanye nokudla okungafanelekile. Kwenzeka kanjalo ukuthi i-nitridium ye-sodium iphumelela ngokukhethekile ekuvimbeleni ukukhula kwayo.
Iziphetho Mayelana Nitrate Nitrites
Njengoba kunikezwe ukuthi i-nitrate ye-sodium ivele ngokwemvelo ekudleni njenge-isipinashi, izaqathe, nesilimo esidliwayo esinamagatsha anamanzi, kanye nokuthi i-nitrite ayizange ibonwe ukuthi ibangele umdlavuza, zonke izingxabano mayelana ne-nitrate kanye ne-nitrites zingase zibonakale njenge-hysteria evame ukuqhutshwa yizindaba.
Ngaphezu kwalokho, izinguqulo ezibizwa ngokuthi "zemvelo" noma "eziphilayo" zale mikhiqizo ingaba ne-nitrate engaphezulu kaningi kunezihlobo zabo ezivamile. Kodwa uma ucabanga ukuthi amathuba okuthola i-botulism angene kakhulu, empeleni yizinto ezingenayo i-nitrate eziletha ingozi empilweni yangempela.