Yuav tsim cov dawb radicals li cas?
Yuav tsim cov dawb radicals li cas?

Video: Yuav tsim cov dawb radicals li cas?

Video: Yuav tsim cov dawb radicals li cas?
Video: yuav coj li cas kom luag nyiam 2024, Kaum ib hlis
Anonim

Dawb radicals yog cov molecules tsis ruaj khov uas tuaj yeem ua rau cov hlwb hauv koj lub cev puas. Lawv daim ntawv thaum atoms lossis molecules nce lossis poob electrons. Piv txwv li, thaum koj lub cev siv oxygen, nws tsim dawb radicals raws li ib tug by-product thiab kev puas tsuaj los ntawm cov dawb radicals hu ua "oxidative stress."

Ib yam li ntawd, dab tsi yog dawb radicals lawv tsim li cas?

Daim ntawv dawb radicals thaum ib cov no Tsis muaj zog bonds ntawm electrons yog tawg thiab ib tug tsis sib xws ntawm electrons nyob twj ywm. Qhov no txhais tau hais tias lub electron yog unpaired, ua rau nws chemically reactive. Tam sim no nws yuav sim thiab nyiag ib qho hluav taws xob los ntawm ib qho chaw nyob sib ze kom ruaj khov rau nws tus kheej.

Ib yam li ntawd, cov piv txwv ntawm cov dawb radicals yog dab tsi? Ob leeg piv txwv ntawm dawb radicals yog cov carbene molecule (:CH2), uas muaj ob dangling bonds; thiab superoxide anion (•O−2), uas yog cov pa molecule (O2) nrog ib qho ntxiv electron thiab ib daim ntawv cog lus dangling.

Tsuas yog li ntawd, cov zaub mov twg ua rau dawb radicals?

Tsis txhob muaj glycemic siab zaub mov , los yog zaub mov uas yog nplua nuj nyob rau hauv refined carbohydrates thiab qab zib. Lawv feem ntau yuav tsim dawb radicals . Txwv cov nqaij ua tiav xws li hnyuv ntxwm, nqaij npuas kib thiab salami. Lawv muaj preservatives, uas ua rau zus tau tej cov dawb radicals.

Puas yog dawb radicals zoo lossis phem?

Dawb radicals tsis yog xwb phem Rau ib ntev lub sij hawm cov kws tshawb fawb saib cov no dawb radicals , kuj hu ua ROS (reactive oxygen hom) ua "ua phem" vim lawv cov electron raid. Lub sijhawm no, txawm li cas los xij, lawv pom tias lawv - nrog rau qhov sib npaug - kuj muaj txiaj ntsig zoo.

Pom zoo: