Njira yopangira squalene oxidation ili m'njira yakuti nthawi yake yocheperako ya ionization imatha kupereka kapena kulandira ma elekitironi popanda kuwononga kapangidwe ka mamolekyu a maselo, ndipo squalene imatha kuthetsa kayendedwe ka unyolo wa hydroperoxides mu njira ya lipid peroxidation. Kafukufuku wasonyeza kuti peroxidation ya sebum imayamba chifukwa cha mpweya wa singlet, ndipo singlet oxygen quenching rate ya squalene mu sebum ya anthu ndi yayikulu kwambiri kuposa ya lipids zina pakhungu la munthu. Komabe, ziyenera kudziwika kuti ngakhale squalene imatha kuletsa lipid peroxidation, zinthu za squalene, monga unsaturated fatty acids, zimakwiyitsanso khungu.
Squalene peroxide ingakhale ndi gawo lalikulu pakukula kwa ziphuphu. Mu zitsanzo zoyesera za nyama, zapezeka kuti squalene monoperoxide imayambitsa kwambiri ziphuphu, ndipo kuchuluka kwa squalene peroxide kumawonjezeka pang'onopang'ono akalandira kuwala kwa UV. Chifukwa chake, akulangizidwa kuti odwala ziphuphu azisamala ndi chitetezo cha dzuwa, ndipo mafuta oteteza ku dzuwa amatha kupewa squalene peroxidation pamlingo wa thupi womwe umayambitsidwa ndi kuwala kwa ultraviolet.
Chowunikira khunguingagwiritsidwe ntchito kuzindikira momwe kirimu wa dzuwa umakhudzira. Chithunzi cha UV chimawonetsedwa ngati pali mankhwala a sunscreen; ngati pali sunscreen yeniyeni, chithunzicho chimawala, mofanana ndi zotsalira za fluorescent.
Nthawi yotumizira: Epulo-29-2022
