Titanium Dioxide na nri ọ na-emerụ ahụ?

Nchekwa nke titanium dioxide (TiO2) na nri bụ isiokwu nke arụmụka na nyocha n'ime afọ ndị na-adịbeghị anya. A na-eji titanium dioxide mee ihe dị ka ihe mgbakwunye nri bụ isi maka agba ọcha ya, opacity ya, yana ike ịkwalite ọdịdị nke ụfọdụ ngwaahịa nri. Akpọrọ ya dị ka E171 na European Union ma kwenye ya maka nri na ihe ọṅụṅụ n'ọtụtụ mba gburugburu ụwa.

Ọ bụ ezie na a na-ahụta titanium dioxide ka ọ dị mma maka oriri site n'aka ndị na-ahụ maka nchịkwa dịka US Food and Drug Administration (FDA) na European Food Safety Authority (EFSA) mgbe ejiri ya n'ime oke a kapịrị ọnụ, ewelitela nchegbu banyere mmetụta ahụike ọ nwere, karịsịa na nanoparticle. ụdị.

Nke a bụ isi isi ihe ị ga-atụle:

1. Oke urughuru: Titanium dioxide nwere ike ịdị n'ụdị nanoparticle, nke na-ezo aka na ụmụ irighiri ihe nwere nha na nha nanometer (1-100 nanometers). Nanoparticles nwere ike igosi ihe dị iche iche ma e jiri ya tụnyere ụmụ irighiri ihe buru ibu, gụnyere ụbara elu elu yana mmeghachi omume. Ụfọdụ ọmụmụ na-atụ aro na ahụ nanoscale titanium dioxide nwere ike ịkpata ihe egwu ahụike, dị ka nrụgide oxidative na mbufụt, karịsịa mgbe etinyere ya n'ọtụtụ.
2. Nnyocha na-egbu egbu: Nnyocha na nchekwa nke titanium dioxide nanoparticles na nri na-aga n'ihu, na nchọpụta ndị na-emegiderịta onwe ha sitere na nchọpụta dị iche iche. Ọ bụ ezie na ụfọdụ ọmụmụ welitere nchegbu banyere mmetụta ọjọọ nwere ike na mkpụrụ ndụ eriri afọ na ahụ ike sistemu, ndị ọzọ ahụtaghị nsí dị ukwuu n'okpuru ọnọdụ mkpughe n'ezie. Achọkwuru nyocha iji ghọta nke ọma nsonaazụ ahụike ogologo oge nke iri nri nwere nanoparticles titanium dioxide.
3. Nlekọta nchịkwa: Ụlọ ọrụ nchịkwa, dị ka FDA na United States na EFSA na European Union, enyochala nchekwa nke titanium dioxide dị ka ihe mgbakwunye nri dabere na ihe akaebe sayensị dị. Iwu ndị dị ugbu a na-akọwapụta oke oriri kwa ụbọchị anabatara maka titanium dioxide dị ka mgbakwunye nri, na-achọ ịhụ nchekwa ya maka ndị ahịa. Agbanyeghị, ụlọ ọrụ na-ahụ maka njikwa na-aga n'ihu na-enyocha nyocha na-apụta ma nwee ike megharịa nyocha nchekwa dịka ya mere.
4. Ntụle ihe ize ndụ: Nchekwa titanium dioxide na nri na-adabere n'ihe ndị dị ka nha urughuru, ọkwa mkpughe, na ike nke onye ọ bụla. Ọ bụ ezie na ọtụtụ ndị mmadụ enweghị ike ịnweta mmetụta ọjọọ site na iri nri nwere titanium dioxide n'ime oke nchịkwa, ndị nwere ezi uche ma ọ bụ ọnọdụ ahụike nwere ike ịhọrọ izere nri nwere titanium dioxide agbakwunyere dị ka ihe eji kpachara anya.

Na nchịkọta, a na-anabata titanium dioxide ka ọ bụrụ ihe mgbakwunye nri n'ọtụtụ mba, a na-ewerekwa ya na ọ dị mma maka oriri n'ime oke nhazi. Otú ọ dị, nchegbu na-anọgide na-enwe banyere mmetụta ahụ ike nke titanium dioxide nanoparticles, karịsịa mgbe a na-eri ya n'ụba n'ime ogologo oge. Nnyocha na-aga n'ihu, ntinye aha doro anya, na nlekọta nchịkwa dị mkpa maka ịhụ na nchekwa nke titanium dioxide na nri na ịkwado nchegbu ndị ahịa.