Uthenga uwu ndi wa inu, okonda soseji ndi nyama yankhumba! Kodi Sodium Nitrate ndi yoopsadi?

Mwina mukudziwa kuti zakudya zambiri zomwe timagula m'mabokosi ku sitolo kapena ku supermarket zimakhala ndi zowonjezera zosiyanasiyana zomwe zimawonjezeredwa kuti zikhale zatsopano komanso kuti zisunge kukoma kwake. Koma kodi mukudziwa bwino momwe zowonjezerazi zimakhudzira thanzi lathu? Lero tikulankhula za chinthu chomwe chikukambidwa ndi anthu ambiri. Ndicho sodium nitrate.

Kodi Sodium Nitrate ndi chiyani?

Mwachidule, sodium nitrate ndi sodium nitrite, yomwe ndi yofanana nayo kwambiri, ndi zinthu zotetezera. Zimagwiritsidwa ntchito kwambiri mu zinthu "za nyama zokonzedwa", monga masoseji, nyama yankhumba, nyama yankhumba, ndi nyama za nyama. Zimawonjezedwa osati kuti nyamayo isungidwe kwa nthawi yayitali, komanso kuti ipange mtundu wa pinki komanso kukoma kwapadera.

Koma chodabwitsa n'chakuti ma nitrate ndi ma nitrite amenewa sapezeka muzakudya zopangidwa ndi anthu okha. Mwachibadwa amapezeka mu ndiwo zamasamba monga sipinachi ndi seleri . Ndipo ngakhale madzi a m'mpopi omwe timamwa angakhale ndi ena mwa iwo.

Kodi matupi athu amafunikiradi ma nitrate?

Inde, ma nitrate ndi ma nitrite amafunika pa ntchito zingapo zofunika m'thupi lathu. Ndipotu, 85% yokha ya ma nitrate omwe timadya m'zakudya zathu amachokera ku ndiwo zamasamba .

Zomwe zimachitika m'thupi lathu ndizofunikira kwambiri. Ma nitrate omwe timadya amasinthidwa kukhala ma nitrites ndi thupi. Ma nitrites awa amasanduka chimodzi mwa zotsatira ziwiri. Chimodzi ndi zotsatira zabwino kwambiri kwa ife, ndipo china ndi zotsatira zoopsa pang'ono.

Mbali Yabwino: Nitric Oxide

Uyu ndiye "munthu wabwino" m'nkhani yathu. Nitric oxide, molekyu yopangidwa kuchokera ku nitrite, ndi yofunika kwambiri pa thanzi la mtima wathu.

• Zimathandiza kuchepetsa kuthamanga kwa magazi .
• Imakulitsa mitsempha yamagazi ndikuwongolera kuyenda kwa magazi .
• Izi zimathandiza kwambiri poteteza matenda a mtima .

Mbali yoopsa: Nitrosamines

Uyu ndiye "munthu woipa" munkhaniyi. Kupha poizoni wa nitrate ndi nitriteChifukwa chachikulu chomwe chimaonedwa kuti ndi poizoni komanso choopsa ndi chifukwa cha mankhwala otchedwa nitrosamines. Izi ndi zinthu zomwe zimayambitsa khansa , zomwe zikutanthauza kuti ndi zinthu zomwe zimatha kuyambitsa khansa.

Ichi ndichifukwa chake bungwe la World Health Organization (WHO) lalengeza kuti nyama yokonzedwa imayambitsa khansa . Pa kutentha kwambiri, ma nitrites amatha kuchitapo kanthu ndi mapuloteni omwe ali mu nyama kuti apange ma nitrosamines owopsa awa.

Chowonadi chobisika kumbuyo kwa chizindikiro cha "Nitrate-Free"

Tsopano, mukapita ku supermarket, mwina mwawonapo masoseji ndi nyama yankhumba olembedwa zinthu monga " organic ", "no added nitrates", ndi "free nitrates". Anthu ambiri amaganiza kuti izi ndi zotetezeka kwathunthu. Koma pali chinsinsi pang'ono apa chomwe tiyenera kudziwa.

Amafunika njira yosungira zinthu zomwe zimatchedwa kuti "zopanda nitrate". Pachifukwa ichi, amagwiritsa ntchito ufa wa udzu winawake .

Taganizirani izi, udzu winawake ndi ndiwo zamasamba zomwe zimakhala ndi nitrate yambiri mwachilengedwe. Choncho zomwe zimachitika mukawonjezera ufa wa udzu winawake ndi zofanana ndi zomwe zimachitika mukawonjezera sodium nitrate yopangidwa ndi mankhwala. Izi zikutanthauza kuti mankhwalawa alinso ndi nitrate. Ngakhale kuti amatha kulembedwa kuti "opanda nitrate" chifukwa sawonjezeredwa ndi mankhwala, malinga ndi lamulo, zotsatira zake pa thupi ndi zomwezo. Nitrate zimenezo zimathanso kusanduka nitrosamines.

Chofunika kwambiri ndi ichi:

• Pali malire ovomerezeka pa nitrates zowonjezeredwa ndi mankhwala. Mabungwe monga FDA (Food and Drug Administration) akhazikitsa kuchuluka kwakukulu komwe kungakhale mu chinthu.
• Koma ma nitrate owonjezeredwa kuchokera kuzinthu zachilengedwe, monga ufa wa seleri, sakulamulidwa mokwanira. Kafukufuku wina wasonyeza kuti zinthu "zachilengedwe" izi zitha kukhala ndi ma nitrate ochulukirapo kuwirikiza kakhumi kuposa omwe amapangidwa pogwiritsa ntchito njira zachikhalidwe.

Ndiye kodi chigamulo chomaliza ndi chiyani? Kodi sodium nitrate ndi yoopsadi?

Kutengera ndi zomwe zapezeka pano, sizikudziwika bwino nthawi yomweyo kuti sodium nitrate yokha ndi yoopsa. Monga taonera, ndi chinthu chofunikira m'thupi lathu, makamaka pa thanzi la mtima.

Taganizirani izi ngati vitamini. Mavitamini ndi ofunikira m'thupi lathu. Koma ngati muwamwa mopitirira muyeso, akhozanso kukhala poizoni. Umu ndi momwe zilili.

Njira yabwino kwambiri yopezera nitrates ndi kuchokera ku ndiwo zamasamba, osati kuchokera ku nyama yokonzedwa.

ndichoncho chifukwa chiyani?

Pamodzi ndi ma nitrate, ndiwo zamasamba zimakhalanso ndi michere yambiri, monga ma antioxidants monga vitamini C ndi ulusi. Ma antioxidants amenewa amatha kuletsa ma nitrate kupanga ma nitrosamine oopsa. Izi zikutanthauza kuti timapeza zabwino zokha kuchokera ku ndiwo zamasamba.

Koma nyama zokonzedwa sizimadya zakudya zotetezeka zimenezi. Zilinso ndi mchere wambiri komanso mafuta osapatsa thanzi. Choncho zimakhala ndi ma nitrosamine ambiri.

Choncho, m'malo modandaula za nitrates, samalani ndi komwe mukuzipeza. Si nkhani yaikulu kudya nyama zokonzedwa nthawi zina, koma ndi bwino kupewa kuzipanga kukhala gawo la zakudya zanu za tsiku ndi tsiku.