Kodi pakachitsulo woipa ndi Otetezeka?

Zamkati

• Chiyambi
• Ndi chiyani?
• Chifukwa chiyani zili muzakudya ndi zowonjezera?
• Kodi kafukufukuyu akuti chiyani?
• Kodi akhazikitsa malire?
• Kutenga

Chiyambi

Mukayang'ana pa cholembera cha chakudya kapena chowonjezera, mwachidziwikire mudzawona zosakaniza zomwe simunamvepo. Zina mwina simungathe kuzitchula. Ngakhale zingapo mwazomwe zingakupangitseni kuti muzikhala okayikira kapena okayikira, ena ndiotetezeka, ndipo ndi dzina lawo lokha lomwe silikudziwika.

Silicon dioxide ndichimodzi mwazinthu zotere. Amapezeka muzinthu zambiri, ngakhale kuti nthawi zambiri samamvetsetsedwa.

Ndi chiyani?

Silicon dioxide (SiO₂), yemwenso amadziwika kuti silika, ndi chinthu chachilengedwe chomwe chimapangidwa ndi zinthu ziwiri zofunika kwambiri padziko lapansi: silicon (Si) ndi oxygen (O₂).

Silicon dioxide nthawi zambiri imadziwika ngati quartz. Amapezeka mwachilengedwe m'madzi, zomera, nyama, ndi dziko lapansi. Kutumphuka kwa dziko lapansi ndi 59% ya silika. Amapanga zoposa 95 peresenti yamiyala yodziwika padziko lapansi. Mukakhala pagombe, ndi silicon dioxide mumchenga womwe umadutsa pakati pa zala zanu.

Amapezekanso mwachilengedwe m'matumba amthupi la munthu. Ngakhale sizikudziwika bwinobwino kuti zimasewera bwanji, zimaganiziridwa kuti ndizofunikira zofunikira mthupi lathu.

Chifukwa chiyani zili muzakudya ndi zowonjezera?

Silicon dioxide imapezeka mwachilengedwe m'mitengo yambiri, monga:

• masamba obiriwira
• beets
• tsabola belu
• mpunga wabulauni
• phala
• nyemba

Silicon dioxide imaphatikizidwanso pazakudya zambiri komanso zowonjezera. Monga chowonjezera chakudya, chimagwira ntchito ngati choletsa kupewa kupundana. Mu zowonjezera mavitamini, amagwiritsidwa ntchito popewa zosakaniza zosiyanasiyana zaufa kuti zisamamatirane.

Monga zowonjezera zowonjezera zowonjezera, ogula nthawi zambiri amakhala ndi nkhawa za silicon dioxide monga zowonjezera. Komabe, kafukufuku wochuluka akusonyeza kuti palibe chifukwa chodandaulira izi.

Kodi kafukufukuyu akuti chiyani?

Mfundo yakuti silicon dioxide imapezeka mu zomera ndi madzi akumwa zikusonyeza kuti ndi zotetezeka. Kafukufuku wasonyeza kuti silika yomwe timadya kudzera pazakudya zathu sichuma mthupi lathu. M'malo mwake, amatulutsidwa ndi impso zathu.

Komabe, kupita patsogolo, nthawi zambiri kumapha matenda am'mapapo a silicosis kumatha kuchitika chifukwa cha kupuma kwakanthawi kwa fumbi la silika. Kuwonetsedwa ndi matendawa kumachitika makamaka pakati pa anthu omwe amagwira ntchito mu:

• migodi
• zomangamanga
• kupaka miyala
• makampani achitsulo
• kuwombera mchenga

Ngakhale kafukufuku wambiri pa silika wachitidwa pa nyama, ofufuza sanapeze kulumikizana pakati pa zowonjezera zowonjezera chakudya cha silicon dioxide ndi chiopsezo chowonjezeka cha khansa, kuwonongeka kwa ziwalo, kapena kufa. Kuphatikiza apo, kafukufuku sanapeze umboni uliwonse wosonyeza kuti silicon dioxide monga chowonjezera mu chakudya imatha kukhudza thanzi la kubereka, kulemera kwake, kapena kulemera kwake.

US Food and Drug Administration (FDA) yazindikiranso kuti silicon dioxide ndizowonjezera chakudya choyenera. Mu 2018, European Food Safety Authority idalimbikitsa European Union kuti ikhazikitse malangizo okhwima pa silicon dioxide mpaka kafukufuku wina atakwaniritsidwa. Zodandaula zawo zimayang'ana kwambiri tinthu tating'onoting'ono ta nano (tina tating'onoting'ono tomwe tinali tating'ono kuposa 100 nm)

Malangizo am'mbuyomu adatsata pepala la 1974 lokonzedwa mogwirizana ndi World Health Organisation. Papepalali anapeza zotsatira zoyipa zokha zokhudzana ndi silicon dioxide zimayambitsidwa ndi kuchepa kwa silicon. Kafukufuku waposachedwa atha kusintha malangizo ndi malingaliro.

Kodi akhazikitsa malire?

Ngakhale kafukufuku mpaka pano akuwonetsa kuti palibe zoopsa zambiri zomwe zimakhudzana ndi kumeza kwa silicon dioxide, a FDA akhazikitsa malire pazomwe amagwiritsidwa ntchito: Silicon dioxide sayenera kupitirira 2 peresenti ya kulemera kwathunthu kwa chakudya. Izi zili choncho makamaka chifukwa kuchuluka kwakukulu kuposa malire omwe sanakhazikitsidwe sikunaphunzire mokwanira.

Kutenga

Silicon dioxide amapezeka mwachilengedwe padziko lapansi ndi matupi athu. Pakadalibe umboni wosonyeza kuti ndizowopsa kumeza monga chowonjezera cha chakudya, koma kafukufuku wambiri amafunikira gawo lomwe limagwira m'thupi. Kupumitsa mpweya wa fumbi la silika kumatha kubweretsa matenda am'mapapo.

Anthu omwe ali ndi chifuwa chachikulu ali ndi chidwi chofuna kudziwa zowonjezera pazakudya zomwe amadya. Koma ngakhale mulibe chifuwa choterocho, ndibwino kukhala osamala ndi zowonjezera zakudya. Ndipo ngakhale kusintha kwakung'ono m'magulu amchere kumatha kukhudza kwambiri magwiridwe antchito. Njira yabwino ndikudya zakudya zonse ndikukhala ndi silicon dioxide wathanzi.