Iko Kunetseka Nezvehutano NezveNitrates Kunodarika Here?
Nitrates uye nitrites ndiwo makemikari akawanda anowanzoshandiswa mukugadzira michina yakakodzwa yakadai sebakoni uye imbwa dzinopisa.
Inki yakawanda yakasvibiswa kukurukura pfungwa yokuti nitrate uye nitrites zvakashata kwauri, uye vashandi vezvokudya vauya marudzi ose ekuti "nitrate-isina" michina kuti asangane nemutengo unoshandiswa nevatengi.
Asi izvo zvausingazive ndezvokuti kwete chete kutya kune nitrates kwakanyanya kudarika, asi aya "nitrate-free" zvigadzirwa zvinogona chaizvoizvo kuva nezvakawandisa zvakawanda kune nitrates kupfuura zvigadzirwa zvekare.
Kwete iyo chete asi imbwa inotyisa isina nitrate inogona kunge ichiita kuti urware kupfuura inowanikwa.
Nitrates uye Kuchengetedza Zvokudya
Nitrates inoshandiswa mukurapa, iyo inoparadzanisa nzira yekuchengetedza kudya, kunyanya nyama nehove, iyo inosanganisira kushandiswa kwemunyu, shuga, kana kupera simba. Muchiitiko chimwe nechimwe, chinangwa ndechokuita kuti chikafu chisakanganise mabhakitiriya anokonzera kudya kuparara .
Izvi zvinoshanda nokuti mabhakitiriya zvipenyu zviduku zvinoda, pakati pezvimwe zvinhu, hunyoro, okisijeni, uye zvokudya. Bvisa chimwe chezvinhu izvi uye ivo vanofa.
Pane zvakasiyana kune mutemo uyu, uye unosanganisira rudzi rwebhakitiriya runogona kurarama munzvimbo isina oxygen-isina. Tichataura pamusoro pazvo munguva pfupi.
Munyu seSekuchengetedza Zvokudya
Imwe yenzira dzokutanga dzokurapa zvokudya dzaisanganisira kushandiswa kwemunyu . Munyu unodzivirira zvokudya kuparadza kuburikidza neitiro inozivikanwa se osmosis , iyo inonyanya kunaya mhepo kubva mumitumbi yebhakitiriya, ichivauraya nekuderedza mvura.
Sodium nitrate rudzi rweumunyu unoitika kuva inonyanya kugadzirisa zvokudya zvekudya. Chimiro chinowanzoitika, iyo nitrodium inowanzovapo mumarudzi ose emidziyo ( midzi yevggies yakadai semakaroti uye magirasi ane mashizha sezvakaita celery nesipinashi) pamwe chete nemhando dzose dzezvibereko nemafuta. Chaizvoizvo, chipi nechipi chinokura kubva pasi chinodurura nitrate sodium kunze kwevhu.
Kana izvi zvichiita sezvisinganzwisisiki, yeuka kuti shoko rokuti nitrate rinoreva chigadzirwa chakaitwa ne nitrogen, iyo inonyanya kukosha yemhepo yedu. Nguva dzose paunotora mweya, uri kufema 78 muzana nitrogen. Iyo ivhu pachayo inotakurwa nezvinhu.
Nitrates uye Nitrites
Chimwe chezvinhu zvinoitika apo sodiumdium nitrate inoshandiswa sechirapa ndeyokuti sodium nitrate inoshandurwa kuva sodium nitrite . Ndiyo nitrium nitrite iyo inenge iine antimicrobial properties inoita kuti ive yakachengetedza yakanaka.
Zvinotoshamisa kuti iyo nitrodium nitrate yatinopedza kuburikidza nemichero, miriwo uye mbeu inoshandurwa zvakare kuitamini nitrite nemaitiro edu ekudya. Mune mamwe mazwi, patinodya michero, miriwo kana mbeu, miviri yedu inobudisa nitrium nitrite.
Nitrites uye Cancer
Makumi makumi emakore akapfuura, vamwe vatsvakurudzi vakakurudzira kuti dai nitrites inogona kusanganiswa nekenza mumakonzo e laboratory. Iyi mazano yakagamuchira zvakawanda zvemashoko. Izvo zvakagamuchirwa zvishoma, zvisinei, ndezve apo kutsvakurudza kumwe kwakaratidza kuti vakanga vasina kururama. Zvechokwadi, National Academy of Sciences, American Cancer Society uye National Research Council vanobvumirana kuti hakuna humwe hutano hwekenza hunobva pakudya nitrium nitrite.
Nitrate-Free Products
Saka zvakadini nezvose zvinonzi "nitrate-free" imbwa dzinopisa, bhakoni nezvimwe zvinonzi "vasina kukwana" michina? Kubvira zvisingatauri imbwa dzinopisa hazvigoneki kune vatengi, hazvisi zvokwadi kuwana chigadzirwa chiri zvachose nitrate-isina. Pane kudaro, vakugadziri vanoita zvirevo se "hapana nitrates yakawedzerwa."
Ichokwadi ndechekuti makambani anoita nhamba dzisina kutsva nitrate dzinoshandisa chimwe chinhu kushandisa sodium nitrate. Celery juice isarudzo yakakurumbira. Uye fungidzira kuti jeri ye celery ine mazamu akawanda here? Sodium nitrate. Uye fungidzira kuti iyo nitrodium nitrate inowanikwa sei kana iwe uchidya? Sodium nitrite!
Sezvatareva pakutanga, celery ndiyo inowanzoita sodium nitrate. (Cherechedza kuti hapana munhu iye zvino anotaura kuti celery inokonzera kenza kana kuti vanhu vanofanira kuderedza kudya kwavo kwechirimwa.) Asi nekuwedzera jueri yejeri kune imbwa dzavo inopisa, vanogadzira vanogona kuita michina inotakurwa ne nitrodium sodium pavanenge vachikwanisa kutora "hapana yakawedzerwa nitrates. " Nokuti zvose nitrate zviri mumuchiri wevhu.
Sezvakangoitika, izvi zvinonzi "zvakasikwa" kana "biki" zvigadzirwa dzimwe nguva zvine 2 nitrate yakakura, kunyange kusvika pakuputika kaviri nitrate sodium, sezvigadzirwa zvekare.
Nitrites uye Botulism
Saka nitrates uye nitrites zvose hazvina maturo uye zvinowanikwa. Asi zvinonyatsoita here kuti kudya nitrate-isina nyama kunogona kuva nengozi kudarika kudya nyama dzine inedium nitrate? Mhinduro ndeyekuti hongu.
Imwe yega inokosha ye sodium nitrite ndeyekuti inodzivirira kukura kweClostridium botulinum . Aya mabhakitiriya anounza utsi hweutulism, chimwe chezvinhu zvinouraya zvikuru zvinozivikanwa, izvo zvinokonzera chirwere chekushaya mitezo chinogona kutungamirira kukundikana kupora.
Clostridium botulinum chirwere chinoshamisa nokuti zvakasiyana nemakiromine akawanda, inoda nzvimbo isina mhepo yakagadzikana kurarama. Kana ikarova mhepo, inofa. Saka inowanzoonekwa muzvokudya zvekakini, zvokudya zvisina kuvharwa, goriki yakachengetwa mumafuta uye zvisina kuporeswa nyama. Izvi zvinongoitika saizvozvo kuti nitrium nitrite inonyanya kubudirira pakudzivirira kukura kwayo.
Mhedziso NezveNitrates uye Nitrites
Sezvo iyo nitrodium nitrate inowanzoitika muzvokudya sepininashi, karoti, uye celery, pamwe chete nekuti nitrite haisati yambonzerwa kukonzera kenza, nharo dzose pamusoro pe nitrate uye nitrites dzingaratidzika sechimiro chevhidhiyo-inotengesa hysteria.
Uyezve, izvo zvinonzi "zvakasikwa" kana "organic" zvishandiso zvezvigadzirwa izvi zvinogona kuva nezvakawandisa kune nitrate ye sodium kupfuura yevamwe vanogara navo. Asi paunofunga kuti huwandu hwekutengesa botulism huri kuwedzerwa, zviri chaizvo izvo zvinotengeswa ne nitrate izvo zvinopa ngozi chaiyo yehutano.