Antioxidants

Umxholo

• Umsebenzi
• Ukwahlulahlula
• Ukubaluleka
• Imizekelo yeAntioxidants
• Inokukunceda:

Inkqubo ye- Antioxidants ziimolekyuli ezinomsebenzi wokulibazisa okanye ukuthintela ioksijini yezinye iimolekyuli: inkuthazo yezi molekyuli kukuthintela isiphumo esonakalisayo seeradicals zasimahla, eziveliswa yi-oxidation kwaye ziqala ukusabela kwetyathanga ezonakalisa iiseli.

Inkqubo ye- Antioxidants bayakwazi ukugqiba ezi iimpendulo, Ukususa abaxhamli basimahla kunye nokuthintela ezinye iimpendulo ze-oxidation, Ukuzirusa ngokuchasene neziqu zabo.

Umsebenzi

Iindlela ii-antioxidants ezizalisekisa umsebenzi wazo ziyahluka ngokuxhomekeke kwimeko, kodwa eyona ixhaphakileyo yile Ukusebenzisana ngokuthe ngqo kunye neentlobo ezisebenzayo, apho i-antioxidant isebenza njenge someleza, ngokudluliselwa kwe-elektroni kwindidi esebenzayo: ngale ndlela, i-radical ilahlekelwa yimeko yayo.

Oku kuneziphumo zeemolekyuli zokuba i-antioxidant emva koko iba simahla, kodwa inokuphinda isebenze kancinci okanye ingabikho kwimo engqongileyo. Ezinye iindlela zokusebenza kwee-antioxidants kukuzinza kweeradicals simahla ngokusebenzisa Ukuhanjiswa ngokuthe ngqo kweathom ye-hydrogen.

Ukwahlulahlula

Antioxidants zihlala zihlelwa phakathi kwesiqhelo i-biosynthesised ngumzimba, kunye nalabo bangena ngokutya: phakathi kwezinto zangaphambili zombini ziyi-enzymatic kunye ne-non-enzymatic, ngelixa ezi zilandelayo zihlelwa phakathi kweevithamini ezinama-antioxidants, i-carotenoids, i-polyphenols, kunye ne-compounds ezingenzi nayiphi na iindidi ezintathu zangaphambili .

Bona kwakho: Imizekelo yeeTrace Elements

Ukubaluleka

Ngengqiqo yokubambezela inkqubo ye-oxidation, ii-antioxidants nazo ukunciphisa inkqubo yokuguga, esilwa nokonakala nokufa iiseli ezibangela iiradicals zasimahla, kwaye ezinefuthe elibalulekileyo ekonakaleni kolusu kunye nomzimba. Ukungakwazi komzimba ngokwawo ukunciphisa ii-radicals zasimahla apho kutyhilwa khona amandla emihla ngemihla ukubhenela ekutyeni okuneempawu zokulwa ne-antioxidant, ukuze kuthintelwe ukusebenza kwazo.

Kwelinye icala, kukho uphando oluninzi olujonga ukuba ukutya ukutya apho ukusetyenziswa kwee-antioxidants kubonakala rhoqo kunokuba umanyano olusebenzayo kumlo wokulwa nomhlaza. Oku kunokubangelwa kukuthintelwa kwe iiseli ezinobungozi, okanye ngempendulo esebenzayo yamajoni omzimba ngokubanzi.

Ezinye iimeko ezinje ngokudodobala kwe-macular, ukukhuselwa komzimba ngenxa yokungondleki, kunye ukungabikho kwemvelo ezibangelwa luxinzelelo lwe-oxidative, inokuthintelwa ngokusebenzisa ii-antioxidants.

Ukulinganisa inqanaba le-antioxidants ekutyeni ayisiyonto ilula, kwaye okwangoku esona salathisi si umthamo wokufunxa oksijini. I-Antioxidants ifumaneka ngokwexabiso lokutya okufana nemifuno, iziqhamo, iinkozo, iimbotyi kunye namandongomane.

Bona kwakho: Yintoni iiMacronutrients neeMicronutrients?

Imizekelo yeAntioxidants

Inokukunceda:

• Iiproteni Imizekelo
• Imizekelo yee-Enzymes (kunye nomsebenzi wazo)
• Imizekelo yeeCarbohydrate
• Imizekelo yeLipids