Izifo zamehlo ezihlobene neminyaka zibangela ukulahlekelwa umbono emhlabeni wonke, zithinta izigidi zabantu, ikakhulukazi asebekhulile. Izimo ezifana ne-age-related macular degeneration (AMD) nama-cataracts zibeka izingozi ezinkulu emisebenzini yokubona kanye nekhwalithi yokuphila. Ukudla okunomsoco kudlala indima ebalulekile ekugcineni impilo yamehlo futhi kungase kunciphise ukuqhubeka kwezifo. Phakathi kwezinto ezibalulekile ezitholakele, i-lutein ne-zeaxanthin zithole ukunakwa okukhulu ngenxa yezici zazo ezihlukile nezinzuzo. Lezi carotenoids, ezitholakala ikakhulukazi esifundeni se-macular se-retina, zinegalelo ku-macular pigment evikela amehlo ekukhanyeni okuluhlaza okubulalayo kanye ne-oxidative stress. Ukuqonda ukugayeka kokudla, ukutholakala, kanye nezinqubo zokusebenza ze-lutein ne-zeaxanthin kubalulekile ukuze kutholwe amandla azo aphelele ekulawuleni impilo yamehlo.

I-Lutein ne-zeaxanthin yizinto zemvelo ezitholakala ezithelweni nemifino ehlukahlukene njenge-kale, isipinashi, nommbila. Ukudla kwazo kubalulekile ngoba abantu abakwazi ukuzikhiqiza. Lezi zakhi zomzimba zaziwa ngamandla azo okulwa nokulimala komzimba (antioxidant properties) kanye nekhono lazo lokuhlunga ukukhanya okunamandla aphezulu, ngaleyo ndlela zivikele izicubu zamehlo. Ukukhuthaza ukuqwashisa ngokubaluleka kwe-lutein ne-zeaxanthin kungasiza ekukhetheni ukudla okungcono futhi kusekele izinyathelo eziqondiswe ekuvikeleni noma ekubambezeleni ukuqala kokukhubazeka kwamehlo. Lesi sihloko sihlole imininingwane yokugayeka kokudla nokumuncwa kwalezi carotenoids emehlweni, izindlela zazo zokuvikela emehlweni, izinkomba zocwaningo zesikhathi esizayo, kanye nemiphumela yamasu okudla aqondiswe empilweni yamehlo.

Uququlelo nokumuncwa kwe-lutein ne-zeaxanthin kuyizinqubo eziyinkimbinkimbi ezithonywa izinto ezahlukahlukene zokudla nezomzimba. Ngemuva kokudliwa, lezi zikharotenoids zikhululwa emanzini okudla emgudwini wokugaya ukudla, isinyathelo esibalulekile ekutholakaleni kwazo. Ziyizinto ezincibilikayo emafutheni; ngakho-ke, ukumuncwa kwazo kuthuthukiswa ubukhona bamafutha okudla. Ukuhlanganiswa kwamajusi esibindi kusiza ukwakheka kwama-micelles, okuvumela i-lutein ne-zeaxanthin ukuba imuncwe yi-enterocytes emathunjini amancane ngokudlula okungahleliwe kanye nezinye izindlela zokuthwala ezingase zisebenze.

Uma sehliselwe, i-lutein ne-zeaxanthin zihlanganiswa kuma-chylomicrons futhi zithwalwa ngohlelo lwe-lymphatic ziye egazini. Izinto ezifana nokudla, ubukhona bokudla okunamafutha, kanye nokuhluka komuntu ngamunye ekugayeni kungathinta kakhulu ukutholakala kwawo. Ngokwesibonelo, ukudla i-lutein ne-zeaxanthin namafutha anempilo njengamafutha omnqumo noma i-avocado kuthuthukisa ukumuncwa kwawo. Ngokuphambene, ukudla okunamafutha amancane noma izinkinga zesisu kungalimaza ukutholakala kwawo. Ukuqonda lezi zinto kubalulekile ekwenzeni izincomo zokudla kanye nokwakheka kwezithako ukuze kutholwe izinzuzo ezinkulu zamehlo zalezi zikharotenoids.

I-Lutein ne-zeaxanthin ziqoqa ngokukhethekile ku-retina, ikakhulukazi esifundeni se-macular, zakha umbala we-macular. Lo mbala udlala indima ebalulekile ekuvikeleni i-retina ngokuhlunga ukukhanya okuluhlaza okunamandla aphezulu okulimazayo nokungathathi hlangothi izinhlayiya ze-oxygen ezisebenzayo ezikhiqizwa ukukhanya kanye nezinqubo zemetabolismu. Ukugxila kwe-lutein ne-zeaxanthin ku-retina kuhlobene ngqo nokudla kwazo, okwenza ukudla kube isici esibalulekile sempilo yeso.

Izakhiwo ezihlukile zokukhanya nezokulwa nokubola kwe-macular pigment zidlala indima enkulu ekusebenzeni kombono, okuhlanganisa nokuthuthukisa ukuzwela kombala nokunciphisa ukukhanya okudlula amehlo. Ucwaningo lubonisa ukuthi izinga eliphezulu le-macular pigment optical density (MPOD) lihlotshaniswa nengozi ephansi ye-AMD. Lokhu kwenza i-lutein ne-zeaxanthin izinto ezibalulekile zamasu okuvimbela ukwehla kombono okuhlobene nokuguga. Ukuqapha ukudla komuntu nokusekela ukwakheka kwesithwebuli kungasiza ukugcina noma ukuthuthukisa i-macular pigment nokuvikela umsebenzi wombono ngokuhamba kwesikhathi.

Ukuthuthwa kwe-lutein ne-zeaxanthin ukusuka emgudwini wegazi kuya kwi-retina kubandakanya izinqubo ezikhethekile eziqinisekisa ukutholwa kwazo okukhethiweyo nokuzinza. Ama-protein abopha i-xanthophyll kwi-retina adlala indima ebalulekile kulolu hlelo ngokwenza kube lula ukuthuthwa nokubopha lezi carotenoids ngaphakathi kwendwangu ye-macular. Lezi protein zisiza ukugcina ukugxila okuphezulu kwe-lutein ne-zeaxanthin okudingekayo ukuze kube nokuvikelwa kahle kokukhanya kanye nomsebenzi we-antioxidant.

Ukutholwa okukhethiweyo kukholakala ukuthi kuphathwa ngama-receptors athile kanye nezithuthi kumaseli e-retinal, nakuba izindlela ezithile zomzimba zisasebenza. Ukuqonda lezi zinqubo kubalulekile ekuthuthukiseni izindlela zokudla ezihlosiwe nezokwelapha ukuze kuthuthukiswe amazinga e-retinal e-lutein ne-zeaxanthin. Le nolwazi lungaholela nasekuthuthukiseni izinhlelo zokwakha izithasiselo ezithuthukisa ukufinyeleleka kwe-bio kanye nokulethwa kwe-retinal kwezi zinto zokudla.

Noma kukhona intuthuko enkulu ekuqondeni indima ye-lutein ne-zeaxanthin empilweni yeso, kunezindawo eziningana ezidinga ucwaningo olwengeziwe. Esinye isici esibalulekile ukucacisa izindlela ezithile zokuthutha ezibandakanyeka ekungeneni kwazo esithombeni nasekusabalalisweni kwazo. Ukuthola lezi zindlela kungavula imingcele emisha ekuthuthukiseni ukulethwa kwamehlo nokusebenza kahle. Enye indawo ethembisayo ihlanganisa ukuhlola izindima zezinto eziphilayo ze-lutein ne-zeaxanthin metabolites kanye nemiphumela yazo engaba khona empilweni yesithombe nokuvimbela izifo.

Ngaphezu kwalokho, kukhona isidingo sokwenza izifundo ezinkulu, zesikhathi eside zokwelapha ukuze kuqinisekiswe imiphumela yokuvikela yokwengeza lutein kanye nezeaxanthin ezindaweni ezahlukene. Ukuqhamuka kwezinhlelo zokudla ezithuthukisiwe nezokudla ezinamafutha kungathuthukisa ukufinyelela nokuhambisana. Izinkampani ezifana neZibo Weiduo ECONOMY™ Co., Ltd, ngokuzinikela kwazo kwekhwalithi nokwakhiwa kwezinto eziphilayo, zidlala indima ebalulekile ekuthuthukiseni ukutholakala kwemikhiqizo ye-lutein nezeaxanthin yekhwalithi ephezulu emhlabeni jikelele. Ubuchwepheshe bazo bungezinyanga ezingaphezu kwengu-20 ekukhiqizeni izithako zokudla nezinto ezivela ezitshalweni kuqinisekisa imithombo ethembekile yalezi zinto ezibalulekile, kusekela imizamo yokuphila kwamehlo emhlabeni jikelele.

I-Lutein ne-zeaxanthin yizinto ezibalulekile ezitholakala emzimbeni ezibalulekile ekugcineni impilo yamehlo nasekuvikeleni ukulahlekelwa kombono okuhlobene neminyaka. Izakhiwo zazo ezihlukile zokulwa ne-oxidative nokuvikela ekukhanyeni, zihlanganiswe nokuqoqwa kwazo okukhethekile ku-macula, kugcizelela ukubaluleka kwazo ekudleni kwamehlo. Ukuthuthukisa ukudla kwazo nokuqonda izindlela zazo zokugayeka kokudla nokuthuthwa kuhlala kubalulekile ekuthuthukiseni izinzuzo zazo. Njengoba ucwaningo luqhubeka, ukuhlanganiswa kwe-lutein ne-zeaxanthin ezinhlelweni eziphelele zokunakekelwa kwamehlo cishe kuzoba ngokoqobo kakhudlwana futhi kusebenze kakhudlwana.

Ezinkampanini nakubathengi abanesithakazelo emithonjeni yemvelo, esezingeni eliphezulu yalezi zakhamzimba, ukuhlola imikhiqizo kanye nobuchwepheshe babaholi bemboni njenge-Zibo Weiduo ECONOMY™ Co., Ltd kungahlinzeka ngezixazululo eziwusizo. Ukuzibophezela kwabo ekuqambeni izinto ezintsha kanye nekhwalithi kumbala wemvelo kanye nezinye izithako zokudla kusekela isidingo esikhulayo se-lutein ne-zeaxanthin ezinhlelweni zezempilo. Ukuthola okwengeziwe ngemikhiqizo yabo, sicela uvakashele i- Products page or explore their company background on the Mayelana Nathi page. For ongoing updates and insights, the Izindaba page provides current information on industry trends and innovations.

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2. Ma L, Lin XM (2010) Effects of lutein and zeaxanthin on aspects of eye health. J Sci Food Agric. 90(1):2-12.

3. Bernstein PS, Khachik F, Carvalho LS, et al. (2016) Lutein, zeaxanthin, and meso-zeaxanthin in the eyes, serum, and diet. Prog Retin Eye Res. 50:34-66.

4. Krinsky NI, Landrum JT, Bone RA (2003) Biological mechanisms of the protective role of lutein and zeaxanthin in the eye. Annu Rev Nutr. 23:171-201.