Ingabe I-Titanium Dioxide Ekudleni Iyingozi?

Ukuphepha kwe-titanium dioxide (I-TiO2) ekudleni kube yisihloko senkulumompikiswano kanye nokucutshungulwa eminyakeni yamuva nje.I-Titanium dioxide isetshenziswa njengesengezo sokudla ngokuyinhloko ngombala wayo omhlophe, ukungafihli, kanye nekhono lokuthuthukisa ukubukeka kwemikhiqizo ethile yokudla.Ilebulwe ngokuthi E171 e-European Union futhi ivunyelwe ukusetshenziswa ekudleni naseziphuzweni emazweni amaningi emhlabeni jikelele.

Nakuba i-titanium dioxide ibhekwa njengephephile ukusetshenziswa yiziphathimandla ezilawulayo ezifana ne-US Food and Drug Administration (FDA) kanye ne-European Food Safety Authority (EFSA) uma isetshenziswa ngaphakathi kwemikhawulo ethile, ukukhathazeka kuye kwaphakanyiswa mayelana nemiphumela yayo yezempilo engaba khona, ikakhulukazi ku-nanoparticle. ifomu.

Nawa amaphuzu abalulekile okufanele uwacabangele:

1. Usayizi Wezinhlayiyana: I-Titanium dioxide ingaba khona ngendlela ye-nanoparticle, ebhekisela ezinhlayiyeni ezinobukhulu esikalini se-nanometer (ama-nanometer angu-1-100).Ama-Nanoparticles angase abonise izakhiwo ezihlukene uma kuqhathaniswa nezinhlayiya ezinkulu, okuhlanganisa indawo engaphezulu ekhulayo kanye nokusebenza kabusha.Olunye ucwaningo luphakamisa ukuthi izinhlayiya ze-nanoscale titanium dioxide zingase zibe sengozini yezempilo, njengengcindezi ye-oxidative nokuvuvukala, ikakhulukazi uma zidliwe ngobuningi.
2. Izifundo Zobuthi: Ucwaningo ngokuphepha kwe-titanium dioxide nanoparticles ekudleni luyaqhubeka, nokutholakala okungqubuzanayo okuvela ezifundweni ezihlukahlukene.Nakuba ezinye izifundo ziphakamise ukukhathazeka mayelana nemiphumela emibi engaba khona kumaseli amathumbu kanye nempilo yesistimu, ezinye azitholanga ubuthi obubalulekile ngaphansi kwezimo ezingokoqobo zokuchayeka.Ucwaningo olwengeziwe luyadingeka ukuze uqonde ngokugcwele imiphumela yesikhathi eside yezempilo yokudla okuqukethe i-titanium dioxide nanoparticles.
3. Ukwengamela Okulawulayo: Ama-ejensi alawulayo, njenge-FDA e-United States kanye ne-EFSA e-European Union, ahlole ukuphepha kwe-titanium dioxide njengesithako sokudla ngokusekelwe ebufakazini besayensi obutholakalayo.Imithetho yamanje icacisa imikhawulo eyamukelekayo yansuku zonke ye-titanium dioxide njengesengezo sokudla, okuhloswe ngayo ukuqinisekisa ukuphepha kwayo kubathengi.Nokho, ama-ejensi alawulayo ayaqhubeka nokuqapha ucwaningo olusafufusa futhi angase abuyekeze ukuhlola kokuphepha ngokufanele.
4. Ukuhlola Ubungozi: Ukuphepha kwe-titanium dioxide ekudleni kuncike ezintweni ezifana nosayizi wezinhlayiyana, izinga lokuchayeka, kanye nokuba sengozini komuntu ngamunye.Nakuba abantu abaningi bengase babhekane nemiphumela engemihle ngenxa yokudla ukudla okuqukethe i-titanium dioxide ngaphakathi kwemingcele yokulawula, abantu abanozwela oluthile noma izimo zempilo ezicashile bangase bakhethe ukugwema ukudla okune-titanium dioxide eyengeziwe njengesinyathelo sokuqapha.

Kafushane, i-titanium dioxide ivunyelwe njengesengezo sokudla emazweni amaningi futhi ngokuvamile ibhekwa njengephephile ukuthi isetshenziswe ngaphakathi kwemikhawulo yokulawula.Kodwa-ke, ukukhathazeka kuyaqhubeka mayelana nemiphumela yezempilo engaba khona ye-titanium dioxide nanoparticles, ikakhulukazi uma isetshenziswe ngobuningi phakathi nesikhathi eside.Ucwaningo oluqhubekayo, ukulebula okusobala, nokwengamela okulawulwayo kubalulekile ukuze kuqinisekiswe ukuphepha kwe-titanium dioxide ekudleni kanye nokubhekana nokukhathazeka kwabathengi.