Ingabe i-Silicon Dioxide iphephile?

-Delile

• Isingeniso
• Kwenzenjani?
• Kungani kukudla nezithako?
• Uthini ucwaningo?
• Ngabe imingcele ephephile ibekiwe?
• Ukuthatha

Isingeniso

Uma ubheka ilebuli yokudla noma yokwengeza, maningi amathuba okuthi ubone izithako ongakaze uzwe ngazo. Ezinye ungahle ungakwazi ngisho nokuzisho. Yize okuningana kwalokhu kungakwenza uzizwe ungabaza noma usola, abanye baphephile, futhi yigama labo kuphela elingasetshenziswanga.

I-Silicon dioxide ingenye yezithako ezinjalo. Kutholakala emikhiqizweni eminingi, yize kuvame ukuqondwa kabi.

Kwenzenjani?

I-Silicon dioxide (i-SiO₂), eyaziwa nangokuthi i-silica, iyinhlanganisela yemvelo eyenziwe ngezinto ezimbili zomhlaba eziningi kakhulu: i-silicon (Si) ne-oxygen (O₂).

I-silicon dioxide ivame ukubonwa ngesimo se-quartz. Itholakala ngokwemvelo emanzini, ezitshalweni, ezilwaneni nasemhlabeni. Ukuqhuma komhlaba kungamaphesenti angama-59 e-silika. Kwakha ngaphezu kwamaphesenti angama-95 amadwala aziwayo emhlabeni. Uma uhlala ebhishi, yi-silicon dioxide ngesimo sesihlabathi esingena phakathi kwezinzwani zakho.

Kutholakala ngisho ngokwemvelo ezicutshini zomzimba womuntu. Yize kungacaci ukuthi idlala yiphi indima, kucatshangwa ukuthi iyisakhi esibalulekile esidingwa yimizimba yethu.

Kungani kukudla nezithako?

I-silicon dioxide itholakala ngokwemvelo ezitshalweni eziningi, njenge:

• imifino eluhlaza
• ama-beet
• upelepele wensimbi
• irayisi elinsundu
• oats
• i-alfalfa

I-silicon dioxide yengezwa futhi ekudleni okuningi nakwizithasiselo. Njengesengezo sokudla, sisebenza njenge-anticaking agent ukugwema ukuhlangana. Kuma-supplements, isetshenziselwa ukuvimbela izithako ezahlukahlukene eziyimpuphu ukuthi zinganamathelani.

Njengezithasiselo eziningi zokudla, abathengi bavame ukuba nokukhathazeka nge-silicon dioxide njengesengezo. Kodwa-ke, ucwaningo oluningi lukhombisa ukuthi asikho isizathu salokhu kukhathazeka.

Uthini ucwaningo?

Iqiniso lokuthi i-silicon dioxide itholakala ezitshalweni nasemanzini okuphuza lisikisela ukuthi kuphephile. Ucwaningo lukhombisile ukuthi i-silika esiyisebenzisa ngokudla kwethu ayiqoqeki emizimbeni yethu. Esikhundleni salokho, kukhishwa izinso zethu.

Kodwa-ke, isifo esiqhubekayo, esivame ukubulala isifo samaphaphu esingenzeka singavela ekuphefumuleni okungapheli kothuli lwe-silica. Lokhu kuvezwa kanye nezifo kwenzeka ikakhulu kubantu abasebenza ku:

• izimayini
• ukwakhiwa
• inkwali
• imboni yensimbi
• sandblasting

Ngenkathi ucwaningo oluningi olwenziwe nge-silica lwenziwe ezilwaneni, abacwaningi abatholanga ukuxhumana phakathi kwesithako sokudla i-silicon dioxide kanye nengozi eyengeziwe yomdlavuza, ukulimala kwezitho zomzimba, noma ukufa. Ngaphezu kwalokho, ucwaningo alutholanga bufakazi bokuthi i-silicon dioxide njengesengezo ekudleni ingathinta impilo yokuzala, isisindo sokuzalwa, noma isisindo somzimba.

I-U.S. Food and Drug Administration (i-FDA) nayo ibone i-silicon dioxide njengesengezo sokudla esiphephile. Ngo-2018, i-European Food Safety Authority yanxusa i-European Union ukuthi ibeke imihlahlandlela eqinile kwi-silicon dioxide kuze kube kwenziwa olunye ucwaningo. Ukukhathazeka kwabo kugxile ezinhlayiyeni ezisayizi-nano (ezinye zazo zazincane kuno-100 nm).

Imihlahlandlela edlule ibilandela iphepha lowe-1974 elilungiselelwe ngokuhlanganyela neWorld Health Organisation. Leli phepha lithole kuphela imiphumela emibi yezempilo ehlobene ne-silicon dioxide ebangelwe ukuntuleka kwe-silicon. Ucwaningo lwamanje oluningi kungenzeka luguqula imihlahlandlela nezincomo.

Ngabe imingcele ephephile ibekiwe?

Yize ucwaningo kuze kube manje lubonisa ukuthi azikho izingozi eziningi ezihambisana nokufakwa kwe-silicon dioxide, i-FDA ibeke imikhawulo ephezulu ekusetshenzisweni kwayo: I-Silicon dioxide akufanele yeqe amaphesenti ama-2 wesisindo sokudla. Lokhu kungenxa yokuthi amanani aphakeme kunale mikhawulo ebekiwe ayifundwanga ngokwanele.

Ukuthatha

I-silicon dioxide ikhona ngokwemvelo ngaphakathi komhlaba nasemizimbeni yethu. Okwamanje abukho ubufakazi obukhomba ukuthi kuyingozi ukumunca njengesengezo sokudla, kodwa kudingeka olunye ucwaningo ukuthi iyiphi indima oludlalayo emzimbeni. Ukuphefumula okungapheli kothuli lwe-silica kungaholela ezifweni zamaphaphu.

Abantu abanezifo ezibangelwa ukungezwani komzimba nezinto ezithile banentshisekelo yokuthola ukuthi iziphi izithasiselo ekudleni abakudlayo. Kodwa noma ungenayo i-allergies enjalo, kungcono ukuthi uqaphele ngezithasiselo zokudla. Futhi nezinguquko ezincane emazingeni amaminerali zingaba nomthelela omkhulu ekusebenzeni okunempilo. Indlela enhle ukudla ukudla okuphelele futhi uthole amazinga aphilile e-silicon dioxide.