Okuqukethwe
Ulwazi lwe-Antioxidant ngaso sonke isikhathi. Babekwe njengabavikeli bomzimba womuntu kuma-radicals ayingozi.
Ama-Antioxidants yizinto ezilawula ukugcwala kwama-radicals mahhala, i-oxidation byproducts. Ama-radicals angalimaza izingxenye zamangqamuzana, kuhlanganise ne-DNA, futhi aholele ekuthuthukisweni kwezifo ezihlukahlukene.
Kuyinto evamile ukubhekisela kuma-antioxidants njengamavithamini E, A, C, D, ukulandelela izakhi - i-selenium, i-B-carotene, kanye ne-flavonoids, nezinye izinto eziningana. Zonke zikhiqizwa ngumzimba futhi zitholakala ekudleni kwezitshalo (ngaphandle kokungavamile).
Kukholakala ukuthi ama-antioxidants anciphisa ukuguga futhi avikele umdlavuza. Yiziphi izinganekwane ezizungeza iqiniso mayelana nalezi zinto, futhi yini okufanele uyazi ngama-antioxidants?
Wonke ama-Antioxidants Alungile
Ama-Antioxidants asebenza ngezindlela ezahlukene. I-antioxidant ngayinye inesibopho ngendawo yayo yama-radicals wamahhala. Ama-Antioxidants awashintsheki, amanye asebenza kakhulu uma ebhangqwe namanye, amanye ewodwa.
Inketho engcono kakhulu ukulungisa ukudla kwakho ukuze wonke ama-antioxidants angaba khona kuwo. Ngesikhathi esifanayo, ama-antioxidant okwenziwa awahlali emuncwa umzimba.
Ngokusho kocwaningo lwamaJalimane, ngezinye izikhathi ukuthatha izidakamizwa ezilwa namagciwane kuphazamisa ukuzwela kwe-insulin yomzimba. Olunye ucwaningo luye lwaqaphela ukuthi amadoda athatha izithasiselo ze-beta-carotene aba nomdlavuza. Abesifazane nabo baba namathuba angeziwe okuba nomdlavuza wesikhumba uma bedle ngokweqile izithasiselo zokudla eziqukethe amavithamini C, E, i-beta-carotene ne-zinc.
Ama-Antioxidants atholakala kuphela emifino nasezithelo.
Yonke imikhiqizo yamakhambi - izithelo nemifino, amajikijolo, okusanhlamvu, okusanhlamvu, amantongomane nembewu, zonke izinhlobo zetiye, amakhambi, iwayini elibomvu kanye noshokoledi omnyama, kanye nezimila zasolwandle - ziwumthombo wama-antioxidants. Izitshalo zikhiqiza lezi zinhlanganisela zokulawula izinambuzane kanye ne-UV. Okusanhlamvu okucolisisiwe futhi okugayiwe kungama-antioxidants abalulekile.
Ama-Antioxidants nawo atholakala ngamanani amancane emikhiqizweni yezilwane - inyama, inhlanzi nezilwane zasolwandle, ubisi namaqanda.
Ama-Antioxidants Avuselela
Umphumela wokulwa nokuguga wama-antioxidants awuzange ufakazelwe ngokwesayensi. Kukholakala ukuthi zivimbela kuphela ukuguga ngaphambi kwesikhathi. Kodwa abakwazi ukuvuselela umzimba. Izimonyo ezinama-antioxidants nazo azinamsebenzi: zisebenza kuphela ngaphakathi.
Ama-radicals mahhala ayisitha somzimba
Ama-radicals amahhala akuwona ububi obungenamibandela okufanele kulwelwe ukububhubhisa. Ama-radicals enza imisebenzi eminingi ebalulekile yokuphila komzimba: abamba iqhaza ekuhlanganiseni izilawuli zebhayoloji, asiza ukufinyela izindonga zemithambo yegazi, futhi akhuthaze ukufa kwamangqamuzana.