I-Beta carotene iyi-antioxidant enamandla engasiza ekususeni ama-radicals mahhala emzimbeni futhi inciphise ukulimala kwamangqamuzana nokuguga. Ngaphezu kokuvamile ezitshalweni, inani elithile le-beta-i-carotene liphinde libe khona ezicutshini zezilwane. Ngaphezu kwalokho, i-beta carotene iboniswe ukuthi inenzuzo empilweni yamehlo futhi ingavimbela izifo zamehlo ezifana nokuwohloka kwe-retina. Ngakho-ke, kubalulekile ukudla ukudla okwengeziwe okunothe nge-beta carotene ukuze ulondoloze impilo enhle. Kuyaphawuleka ukuthi nakuba i-beta carotene inenzuzo emzimbeni womuntu, ukuphuza ngokweqile kungase kubangele umbala wombala kanye nezinguquko eziphuzi esikhumbeni, ngakho-ke ukwesekwa kudinga ukulawulwa ngenani elifanele.
I-Beta-i-carotene ithuthukisa umbono onempilo, olinganiselayo kubantu, futhi lesi sihloko sizohlola izinzuzo eziningi zezempilo ze-beta-i-carotene nokuthi ingasiza kanjani ukusekela impilo nempilo yonke.
Yiziphi izinzuzo ze-beta-carotene empilweni yamehlo?
I-Beta-caroteneisitshalo-isandulela sikavithamini A esixhunyaniswe (ngaphandle kobufakazi obuningi besayensi) nempilo enhle yamehlo. Lokhu kungase kubangelwe
1. Uyisandulela sikavithamini A, oyingxenye ye-photosensitive pigment ku-retina futhi edingekayo empilweni yamehlo.
2. Kuyi-antioxidant, kodwa kubalulekile ukwazi ukuthi ukudla okungaphezu kokunconywa kwansuku zonke ngeke kunikeze noma yiziphi izinzuzo ezengeziwe emehlweni noma emzimbeni.
I-US FDA kanye ne-European Food Safety Authority abazange basungule "ukudla okunconyiwe kwansuku zonke" ngenxa yokushoda kobufakazi obanele besayensi bokusungula izinga elidingekayo. Kodwa-ke, uma untula ku-beta-i-carotene noma uvithamini A, ungase uphathwe wubumpumputhe ebusuku, i-xerosis (ukoma kakhulu kwamehlo nesikhumba) kanye nokunciphisa ukumelana nokutheleleka. Bese udinga ukudla i-beta{5}}eningi ye-carotene. Kungenjalo, meh. Manje, uma udla uvithamini A omningi (cishe akwenzeki ukuba ne-beta-i-carotene, nakuba ungathola "i-carotenemia" ngokudla izaqathi eziningi). Ungase ube nobuthi; ukulimala kwesibindi nezinye izinkinga eziningi.
I-beta{0}}i-carotene isiza kanjani impilo yesikhumba?
Ucwaningo lubonisa ukuthi ama-antioxidants, okuhlanganisa i-beta-carotene, angasiza ukugcina impilo yesikhumba nokubukeka futhi angase avikele isikhumba emisebeni yelanga e-ultraviolet.
Ngoba i-beta-i-carotene inikeza umbala wesikhumba, inyusa ukukhiqizwa kwe-melanin, futhi ivikela isikhumba emonakalweni we-ultraviolet. Ukwengeza, i-beta{2}}i-carotene ivimbela ukuvuvuka kwesikhumba futhi ithuthukise ukubukeka kwemigqa emincane nemibimbi.
Sekukonke, i-beta carotene iyi-antioxidant enamandla enezinzuzo ezihlukahlukene zempilo yomuntu kanye nokuphila kahle, kusukela ekukhuthazeni ukulinganisela empilweni nasembonweni kuya ekuvikeleni ngokumelene namangqamuzana omdlavuza kanye nemisebe ye-UV. Ukudla i-beta eyengeziwe-i-carotene{2}}ukudla okucebile, okufana nezaqathi, amazambane, nezitshalo eziluhlaza, kungakusiza ukuthi uthole okuningi kwalezi zakhi ezibalulekile.
Yiziphi izingozi zokudla ngokweqile kwe-carotene?
Uvithamini A ungumsoco obaluleke kakhulu empilweni yomuntu futhi udlala indima ebalulekile embonweni, emasosheni omzimba, nasekuhlukaniseni amaseli. Nokho, ukudla kakhulu uvithamini A kungaholela ekubeni ushevu ngenxa yokuthi uvithamini A ungamafutha-uyancibilika futhi anganqwabelana emzimbeni futhi kunzima ukumkhipha. Ukudla isikhathi eside-kavithamini A kungase kubangele izimpawu ezifana nesiyezi, isicanucanu, ubuhlungu bamalunga, ngisho nesifo sokuquleka nokufa.
Ukwengeza, ucwaningo luye lwabonisa ukuthi ngisho namanani aphezulu kavithamini A kunalawo anconyiwe ahlotshaniswa nokuncipha kwamathambo kanye nengozi eyengeziwe yokuphuka. Ngakho-ke, udinga ukuqapha lapho ufaka uvithamini A, futhi kungcono kakhulu ukwengeza njengoba uqondiswa udokotela wakho. Ngesikhathi esifanayo, ukudla ukudla okwengeziwe okunothe nge-beta{2}}i-carotene (olunye uhlobo lukavithamini A) njengopelepele obomvu, amathanga, izaqathi, njll. kuyindlela ephephile nephumelelayo yokuthola uvithamini A owanele. Ekugcineni, ukulondoloza ukudla okulinganiselayo kubalulekile ukuze uthole ukudla okwanele kodwa hhayi ngokweqile kwezakhi.
Nokho, i-beta-carotene akwaziwa ukuthi inobuthi, ngisho noma yengezwe ngemithamo ephezulu. Kubantu abaningi, okuwukuphela komphumela owaziwayo wokudla okungapheli kwe-beta{2}}ye-carotene ukuba phuzi kwesikhumba. Ucwaningo luthole ukuthi ababhemayo abathatha{4}umthamo omkhulu we-beta{5}}izithako ze-carotene basengozini enkulu yokubulawa umdlavuza wamaphaphu.
Izithenjwa:
1. Migliaccio, V., et al. (2019). Ama-carotenoid empilweni nasesifo: Uhlolojikelele lwezindatshana ezicashunwe kakhulu-kulomkhakha. I-Immunology & Endocrine Metabolic Agents ku-Medicinal Chemistry, 19(2), 97-106.
2. Rizwan, M., et al. (2019). Ama-carotenoids kanye nendima yawo evelayo ekwelashweni kwezempilo kwesikhumba. Amamolekyuli, 24(22), 4039.
3. Wang, X., et al. (2020). Ukuhlangana phakathi kokudla ukudla kwamavithamini nama-mineral antioxidants kanye nengozi yokuba nomdlavuza webele ohlaselayo. Ijenali Yomdlavuza Webele, 23(2), 156-165.
