Cishe uyazi ukuthi ukudla okuningi okupakishiwe esikuthenga esitolo noma esitolo esikhulu kunezithasiselo ezahlukahlukene ezingeziwe kukho ukuze kugcinwe kusha futhi kulondolozwe ukunambitheka kwakho. Kodwa uyazi kahle ukuthi lezi zithasiselo zithinta kanjani impilo yethu? Namuhla sikhuluma ngento exoxwa ngayo ngabantu abaningi. Leyo yi -sodium nitrate.
Iyini i-Sodium Nitrate?
Kalula nje, i-sodium nitrate kanye nesihlobo sayo esiseduze, i-sodium nitrite, ziyizinto zokugcina. Zivame ukusetshenziswa emikhiqizweni "yenyama eyomisiwe", njenge-sausages, i-bacon, i-ham, nama-meatball. Zengezwa hhayi nje kuphela ukuze kulondolozwe inyama isikhathi eside, kodwa futhi ukuze zinike umbala opinki ohlukile kanye nokunambitheka okukhethekile.
Kodwa into emangazayo ukuthi lawa ma-nitrate nama-nitrites awatholakali ekudleni okwenziwe ngokwenziwa kuphela. Atholakala ngokwemvelo emifinweni efana nesipinashi neseleri . Futhi ngisho namanzi ompompi esiwaphuzayo angase abe nawo.
Ingabe imizimba yethu iyawadinga ngempela ama-nitrate?
Yebo, ama-nitrate nama-nitrites ayadingeka ezinqubweni eziningana ezibalulekile emizimbeni yethu. Eqinisweni, ama-nitrate angu-85% kuphela esiwadlayo ekudleni kwethu avela emifinweni .
Okwenzekayo emizimbeni yethu kubaluleke kakhulu. Ama-nitrate esiwasebenzisayo aguqulwa abe ama-nitrite ngumzimba. Lawa ma-nitrite abe esephenduka abe omunye wemiphumela emibili. Omunye umphumela omuhle kakhulu kithi, kanti omunye umphumela oyingozi kancane.
Uhlangothi oluhle: i-Nitric Oxide
Lona "umuntu omuhle" endabeni yethu. I-nitric oxide, i-molecule eyakhiwe nge-nitrite, ibalulekile empilweni yenhliziyo yethu.
- Kuyasiza ekunciphiseni umfutho wegazi .
- Iyandisa imithambo yegazi futhi ithuthukise ukujikeleza kwegazi .
- Lokhu kuyenza ibe usizo olukhulu ekuvikeleni izifo zenhliziyo .
Yingakho ukudla okucebile ngemifino kuthiwa kuhle enhliziyweni. Ngoba imifino ngokwemvelo inikeza ama-nitrate umzimba wethu owadingayo ukuze ukhiqize i-nitric oxide.
Uhlangothi oluyingozi: Ama-Nitrosamine
Lona "umuntu omubi" endabeni. Ubuthi be-nitrate kanye ne-nitriteIsizathu esiyinhloko sokuthi kungani kubhekwa njengobuthi futhi kuyingozi kungenxa yamakhemikhali abizwa ngokuthi ama-nitrosamine. Lawa angama-carcinogen , okusho ukuthi ayizinto ezingadala umdlavuza.
Yingakho i-World Health Organization (WHO) imemezele ukuthi inyama ecutshunguliwe ibangela umdlavuza . Emazingeni okushisa aphezulu, ama-nitrites angase asabela kakhulu ngamaprotheni enyameni ukuze akhe la ma-nitrosamine ayingozi.
Iqiniso elifihliwe ngemuva kwelebula ethi "Akukho Nitrate"
Manje, uma uya esitolo esikhulu, cishe uke wabona amasoseji nebhekoni kubhalwe izinto ezifana nokuthi " organic ", "no added nitrates", kanye nokuthi "free nitrates". Abantu abaningi bacabanga ukuthi lokhu kuphephile ngokuphelele. Kodwa kukhona imfihlo encane lapha okudingeka siyazi.
Badinga indlela yokugcina le mikhiqizo ebizwa ngokuthi "engenayo i-nitrate". Ngenxa yalokho, basebenzisa i-celery powder .
Cabanga ngakho, i-celery iyimifino ene-nitrate eningi ngokwemvelo. Ngakho-ke okwenzekayo uma ufaka i-celery powder kufana nalokho okwenzekayo uma ufaka i-sodium nitrate ekhiqizwe ngamakhemikhali. Lokho kusho ukuthi lowo mkhiqizo uqukethe nama-nitrate. Nakuba ungabizwa ngokuthi "awunayo i-nitrate" ngoba awufakwanga ngamakhemikhali, ngokomthetho, umphumela emzimbeni uyafana. Lawo ma-nitrate angaphenduka abe ama-nitrosamine.
Into ebaluleke kakhulu okufanele uyinake yile:
- Kunemikhawulo esemthethweni kuma-nitrate afakwe ngamakhemikhali. Ama-ejensi afana ne-FDA (Food and Drug Administration) abeke inani eliphakeme kakhulu elingatholakala kumkhiqizo.
- Kodwa ama-nitrate afakwe emithonjeni yemvelo, njengempuphu yeseleri, awalawulwa ngokuqinile. Ezinye izifundo zibonise ukuthi le mikhiqizo "yemvelo" ingaba nama-nitrate aphindwe kayishumi kunalawo enziwe ngezindlela ezivamile.
| Uhlobo lwenyama ecutshunguliwe (Umkhiqizo) | Umkhawulo ovunyelwe ngokomthetho (ppm - izingxenye ngesigidi) |
|---|---|
| I-Bacon | 120 ppm (0.012%) |
| Isoseji elashiwe | 156 ppm (0.0156%) |
| I-ham noma i-pastrami ephekwe nge-brine | 200 ppm (0.02%) |
Ngakho-ke siyini isinqumo sokugcina? Ingabe i-sodium nitrate iyingozi ngempela?
Ngokusekelwe kolwazi lwamanje, akucaci ngokushesha ukuthi i-sodium nitrate ehlanganisiwe ngokwayo iyingozi. Njengoba sesibonile, iyinto edingekayo emizimbeni yethu, ikakhulukazi empilweni yenhliziyo.
Imbangela yangempela akuzona i-nitrate ngokwazo, kodwa umthombo esithola kuwo lawo ma-nitrate.
Cabanga ngalokhu njengevithamini. Amavithamini abalulekile emizimbeni yethu. Kodwa uma uwaphuza kakhulu, angaba yingozi. Kunjalo-ke.
Indlela enempilo yokuthola ama-nitrate iwukuthola imifino, hhayi inyama ecutshunguliwe.
Kungani kunjalo?
Kanye nama-nitrate, imifino iqukethe nezakhamzimba eziningi, njenge-antioxidants efana ne-vitamin C kanye ne-fiber. Lawa ma-antioxidants angavimbela ama-nitrate ekwakheni lawo ma-nitrosamine ayingozi. Lokhu kusho ukuthi sithola uhlangothi oluhle lwe-nitrate kuphela emifinweni.
Kodwa inyama ecutshunguliwe ayinazo lezi zakhamzimba eziphephile. Iqukethe namazinga aphezulu kasawoti namafutha angenampilo. Ngakho-ke kungenzeka kakhulu ukuthi yakhe ama-nitrosamine.
Ngakho-ke, kunokukhathazeka ngama-nitrate, naka ukuthi uwatholaphi. Akuyona into enkulu ukudla inyama ecutshunguliwe ngezikhathi ezithile, kodwa kuwukuhlakanipha ukugwema ukuyenza ingxenye yokudla kwakho kwansuku zonke.
Umlayezo Wokuya Nawe Ekhaya
- I-sodium nitrate isetshenziselwa ukulondoloza inyama ecutshunguliwe, kodwa futhi isiza imizimba yethu ukukhiqiza i-nitric oxide.
- Ama-nitrate aba yingozi kuphela uma eguquka abe ama-nitrosamine, abangela umdlavuza. Lokhu kungenzeka kakhulu uma udla inyama ecutshunguliwe.
- Amalebula athi "Angenazo i-Nitrate" avame ukuqukatha imithombo yemvelo ye-nitrate, njengempuphu yeseleri. Lokhu ngezinye izikhathi kungaba namazinga aphezulu e-nitrate kunemikhiqizo evamile.
- Indlela engcono nephephile yokuthola ama-nitrate ukudla imifino efana nesipinashi kanye ne-beetroot. Ama-antioxidants akuyo avimbela ukwakheka kwama-nitrosamine.
- Jabulela ukudla okufana nesoseji nebhekoni ngezikhathi ezithile, kodwa ungenzi kube yingxenye yokudla kwakho kwansuku zonke. Gxila ekudleni okunempilo, ikakhulukazi imifino nezithelo.
- Uma unemibuzo noma ukungabaza ngokudla kwakho noma impilo yenhliziyo, hlala uthintana nodokotela womndeni wakho ukuze uthole iseluleko.
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