Kua noho te paura tangohanga marigold hei wāhanga matua o te mākete hauora kanohi. Ko tōna nui o te lutein me te zeaxanthin ka āwhina i ngā kanohi kia pai ake te kite. Ko te rauemi tipu whai hua i ahu mai i ngā putiputi Tagetes erecta, ā, he huarahi taiao hei rongoā i te ahotea waikura i roto i ngā kanohi, hei ārai i te mārama kikorangi kino, hei tiaki hoki i ngā hanganga ngawari o te macula. Mena ka mōhio te hunga e hoko ana i ngā mea hei tāpiringa kai, hei kai mahi, hei rongoā nutraceuticals ki te tiaki i te tirohanga, ka taea e rātou te whakatau pai ake i ngā whiringa hoko hei whakapai ake i te mahi a ngā hua, hei whakatutuki hoki i te hiahia o ngā kaihoko mō ngā kai hei tautoko i te hauora kanohi me te mahi tirohanga mō te wā roa.

Ko te paura tango marigold he mea hanga mai i ngā pua kanapa o Tagetes erecta L., e mōhiotia ana mō ō rātou tae karaka-kōwhai kanapa. Kua whakamātauhia te mahi a tēnei matū e te pūtaiao. He hononga tika tēnei tirohanga ki te aroaro o te lutein me te zeaxanthin, e rua ngā carotenoids rite tonu e hanga ana i roto i te kiko retinal tangata. Ka kohia ngā pua marigold ina tino pihi ake, kātahi ka tangohia mā te whakamahi i te wai. Ka horoia ngā pua mā te whakamahi i te chromatography matatau, ā, ka whakamarokehia kia mau tonu ai te kaha taiao. Ko te paura i hangaia he kukū lutein mai i te 5% ki te 80%, i whakamatautauria mā te whakamahi i ngā tikanga HPLC noa kia tino mārama ai he ōrite ia pua.
Ko te Lutein me te zeaxanthin he xanthophyll carotenoids e mōhiotia ana e te hydroxyl collection, e whakamana ana i te mahi motuhake i roto i ngā kiko kanohi. Kei roto i te macula lutea te wāhi e kitea ai, ā, he mahi hei ārai mate pukupuku me ngā awa mārama kikorangi, e tautoko ana i te tirohanga koi me te wehewehe i te pānga. He rerekē ki te beta-carotene, kāore rātou e huri hei huaora A engari ka noho tonu hei kikorangi, e hanga ana i te tae o te kanohi. E pā ana tēnei matotoru o te tae ki te mahi tirohanga whakamua me te tiaki i te pirau e pā ana ki te koroheketanga. Ko tō rātou pumau taiao me te arotahi ki te kohikohi ka waiho hei tāpiringa nui mō te pupuri i te hauora o te retina me te mahi tirohanga mō te wā roa.
Ko te kounga o te tangohanga te mea e whakatau ana i te pakari me te rawaka o te lutein. Mā te whakamaroke whakahaeretia, te kuru pai (≤80 mahi), me te tangohanga etanoru kai-kai ka āwhina i te tiaki i ngā matū hihiri me te whakaiti i te kino mai i te wera, te mārama, me te hāora. Ka peia e te whakatikatika maha-taahiraa ngā mea ngoikore pērā i te chlorophyll me ngā ware pi, ka hangaia he paura pumau, parakore teitei tae atu ki te 24 marama te roa o te oranga whatanga i raro i te kaha tika. Ka whakarite ēnei momo kua arotauhia kia rite te marara o ngā taipitopito me te pupuri i te mahi koiora, ka whakamana i te mahi hua pono i runga i ngā tautau me te tautoko i ngā tono tauine-ahumahi e hiahia ana ki te kounga whakapiri pono.
Kei roto i te lutein i ahu mai i te marigold ngā isomers trans-katoa noa, ā, he nui ake te bioavailability i ngā āhua hangarau. E whakaatu ana ngā whakamātautau haumanu he pai ake te whakauru me te whakakotahitanga kiko mai i ngā pūtake noa. Ko te tata o te zeaxanthin tāpiri he whakaata i ngā ōwehenga kai noa, e tautoko ana i te tiaki retina tahi. Ka urutau tēnei hanganga ki ngā whakamāramatanga e ahu mai ana i ngā taunakitanga pērā i te AREDS2, ka pai ai te tango marigold mō ngā tāpiringa hauora kanohi me ngā kai whai hua. Ko tōna āhua hauora matua, me te tīmatanga noa me te hototahi ki te tinana tangata, ka whakanui ake i tōna rongonui mō ngā kaihanga e aro ana ki ngā hua tirohanga kua tautokona e te haumanu.

Neke atu i te toru tekau tau o ngā rangahau haumanu, kua kohia he taunakitanga pakari mō te kaha o te lutein ki te tiaki i te mahi tirohanga me te aukati i ngā mate kanohi pirau. He maha ngā huarahi e mahi ai ēnei painga, mai i te aukati i te mārama ā-tinana ki te mahi antioxidant ngota. Ina mārama ngā kaimahi hoko ki ēnei turanga pūtaiao, ka taea e rātou te kōrero mārama mō te uara o ngā kai me ngā hoa mahi i raro i te mekameka tuku me ngā kaihoko mutunga. Ka whakaratohia e te paura tango marigold ēnei painga mā roto i ngā ara maha kua whakamanahia.
Ka mimiti te Lutein me te zeaxanthin i te mārama kikorangi kaha-teitei (400–500 nm), ka ārai i ngā photoreceptors mai i te kino o te waikura. Mā te matotoru o te tae kanohi ka piki ake te ātete ki te kanapa, ka tere ake te whakaora tirohanga i muri i te whakaurunga o te mārama. E ai ki ngā whakamātautau hauora, ko te tango i te 10–20 mg o te lutein i ia rā ka whakapai ake i ēnei pānga tiaki i roto i ngā wiki 12–24. I te pikinga ake o te whakaurunga o te mata puta noa i te ao, ka piki ake te tono mō ngā matū tātari mārama-kikorangi. Ka mahi ēnei carotenoids hei "tātari whatu" ā-roto, e tautoko ana i te whakamarie kanohi me te tiaki retina mō te wā roa i roto i ngā momo oranga matatau.
Ka whakaitihia e te Lutein te mumura mā te whakataurite i te whakaputanga cytokine me te aukati i ngā ara oxidative i roto i ngā pūtau retinal. Ka whakakorea e tōna hanganga ngota ngā momo hāora urupare, ka ārai i te peroxidation lipid i roto i ngā photoreceptors. Ka aukatihia e tēnei te aromatawai kiriata me te tautoko i te hua phototransduction. Ka puta he tohu iti iho i ngā biomarkers oxidative, ā, ka wehewehea te pānga ki te tāpiringa. He mea nui ēnei mahi antioxidant me anti-inflammatory hei pupuri i te hauora o te retinal, inā koa i roto i ngā āhuatanga metabolic ahotea nui pēnei i te pakeketanga, te roa rānei o te pānga o te rā.
E whakaatu ana ngā whakamātautau haumanu ko te tāpiritanga o ia rā ki te lutein me te zeaxanthin ka whakaiti i te nekehanga o te pirau kanohi e pā ana ki te koroheketanga (AMD) mā te 10–25%. Ko ngā painga ko te matotoru o te tae kanohi, te whakahekenga o te pana waikura, me te whakapainga o te mahi mitochondrial i roto i ngā pūtau retinal. E hono ana hoki ngā raraunga mate urutā ki te whakaurunga lutein teitei ake ki te whakaiti i te tūponotanga o te katarata. Ko ēnei pānga tiaki i te whakamahinga whānui o ngā tango lutein paerewa i roto i ngā āhuatanga hauora kanohi ārai, inā koa mō te hunga pakeke e tūpono ana ki te ngaro o te tirohanga.
Ko te inenga whai hua kei waenga i te 6–20 mg ia rā, me ngā taumata teitei ake e whakamahia ana hei whakaora. Ka piki haere te whakaurunga ina pau te lutein me ngā ngako nā tōna āhua lipophilic. I ngā wā katoa ka whakauruhia e ngā taipitopito ngā hinu, ngā whanaketanga tauira rānei hei whakapai ake i te hauora me te tangohanga. Ka tiakina e ngā pūnaha Beadlet te lutein i te wā e tukatukahia ana, ka ārai i te pirau. Mā ngā pūnaha inenga me te kawe kua pai ake ka whakarite i te bioavailability pumau, ka whakarerekē i te pānga me te rawaka i roto i te whanaketanga hua tauine nui mō ngā mākete o te ao.

He maha ngā momo tango tipu me ngā matū hangai e whakamahia ana i roto i ngā hua hauora kanohi. He painga me he huakore tō ia hua. Mā te rangahau whakatairite ka āwhina i ngā tohunga hoko ki te whiriwhiri i ngā kai hei whakapai ake i te mahi me te tūnga i te mākete. Ko te paura tango marigold e tū motuhake ana nā tōna kukū me tōna āhua koiora.
Ahakoa he whānau tipu kotahi ngā mea e rua, he nui ake te taumata lutein o te marigold i te calendula. E 20–80% te kukū lutein o te marigold, engari ko te calendula he iti iho i te 5%. Ka pā tēnei rerekētanga ki te pūkenga tango me te tika o te whakairo. He pai ake te calendula mō ngā whakamahinga ā-kiri, ahakoa he pai ake te marigold mō ngā hua tirohanga. Ka whakaitihia e te kaha teitei ake ngā whakaritenga papanga mata, ka piki ake te ngāwari me te ōritetanga o te hua.
Ko te āhua o te lutein tūturu he 20–30% teitei ake i ngā āhua hanga nā te mea he pai ake te hototahi ki te pūnaha nakunaku tangata. Ko te hiahia o te kiritaki ki ngā matū noa, he tapanga ma, ka whakapakari i tōna tūranga whakaaturanga. He maeneene rawa te whakaaetanga whakahaere mō ngā tango noa me ngā pārongo haumaru kua hangaia. Tērā pea ka tukuna e ngā āhuatanga hanga he mea hou engari he uaua ake te tirotiro me te iti ake o te whakaaetanga kiritaki, inā koa i roto i ngā mākete utu nui.
He nui ake te mana o te lutein waro nā te mea he iti te utu o ngā honi whakatipu me te korenga o ngā whakaurunga hangarau. Ka whakapai ake te tiwhikete i te mana o te waitohu me ngā tono ki ngā kiritaki e aro nui ana ki te hauora. Mā ngā mehua kounga taapiri, tae atu ki ngā whakamātautau whakarewa me te moroiti nui, ka whakarite kia tutukihia ngā aratohu whānui. Ka whakaitihia e ēnei parepare te mōrearea whakahaere me te tautoko i te wāhanga hokohoko i roto i ngā rohe tino pakari, ka kaha ake te whakataetae o ngā hua kua whakamanahia.

Hei whiwhi i te paura tangohanga marigold kounga teitei , pono hoki, me āta tirotiro koe i ngā pūkenga, ngā pepa mahi, me ngā taputapu a ngā kaiwhakarato. Mā ngā tauira aromatawai hanganga ka āwhina i ngā kaimahi hoko ki te kimi hoa mahi hei tautoko i ngā huringa whanaketanga hua mō te wā roa.
Mā ngā Tiwhikete Whakamātautau (COA) ka whakaū te kounga o te puranga, ka whakarārangihia te matū lutein mā te HPLC, ngā rohe moroiti, ngā konganuku taimaha, ngā puranga patu pepeke, me ngā āhuatanga ā-tinana pērā i te aromatawai mahi me te makuku. Ka tukuna e ngā ratonga pakari ngā COA kua whakaaetia e te hunga tuatoru mō ngā whakamātautau ā-roto. Me whakaū ngā rōpū whiwhi i ngā rautaki whakamārama (USP, EP) me te tutuki i ngā paearu pharmacopeia. Ko te tono whakamātautau kore utu mō te whakamātautau he whakauru i te pono, inā koa ki ngā kaihoko kāore i whakamahia. Ko ngā pepa mōhiohio motuhake whānui e kapi ana i te tango, te kaha, me te hototahi tautuhinga ka whakapūmau i te mahi hua pumau me te rite whakahaere.
Mā ngā tiwhikete kaiwhakarato ka whakangāwari ake i te wāhanga hokohoko mā te whakapūmau i te tutuki i ngā paerewa o te ao. Ka whakaū te ISO 9001 i ngā anga whakahaere kounga, ko te GMP me te FSSC 22000 ia ka whakaae ki ngā whakaritenga haumaru kai. Ka whakawhānui ake ngā tiwhikete ture me te Halal i te whānuitanga o te whakaaturanga, ā, me whakamana ā-tau te mātauranga o te kimi me te whakarite. Ka whakaatu ēnei tohu i te whai i ngā whakaritenga me te kounga whakaputa pono. Ka taea e ngā rōpū hoko te whakarite i ngā ratonga i mua i runga i ngā tiwhikete, te whakaiti i ngā mōrearea whakahaere, te karo i ngā whakaroa nui, me te whakapūmau i te whanaketanga hua maeneene puta noa i ngā mākete o te ao.
Ko ngā rahinga iti rawa o te whakaritenga ka tīmata i te 25 kg nā runga i ngā whakaritenga mō te paihere me te hauora. Te whakatau tata i ngā panoni me te kukū lutein—ko ngā kōeke iti (5%) he iti iho te utu i ngā tangohanga kounga teitei (80%) kounga rongoā. Ko te kounga teitei e whakaatu ana i te whakahaere uaua ake me ngā hua iti ake. Ko ngā mōhiotanga hoko nui ka tukuna he hua whai hua, he maha ngā wā ka whakaitihia ngā utu mā te 10–15% me ngā kirimana roa. Ko te pupuri i ngā taonga mō ngā hua paerewa ka whakapoto i ngā wā tuku, ka tautoko i ngā tuku hua tere ake, ā, ka tere ake te urupare o te mekameka tuku.
Mā te whakawhitiwhiti kōrero whai hua ka taea te whakarite i ngā hononga pumau mō te wā roa. Me tere te whakautu a ngā kaiwhakarato, me te tohungatanga hangarau, me ngā whakahōutanga mō te whakaputanga, ngā āhuatanga o te hua, me ngā whakararuraru pea. Mā ngā whakaaetanga mārama mō te tuhi, te tauira, me te whakatau take ka ārai i ngā māramatanga kore. Mā ngā kōwhiringa whakaritenga ngāwari, pērā i te rahi o te matūriki, ngā whakarerekētanga takai rānei, ka whakaatu i te urutau mahi. Mā ngā anga whakawhitiwhiti kōrero mārama ka whakapai ake i te pumau o te mekameka tuku, ka tautoko i te whakamahere matatau, ka whakapakari i te mahi tahi i roto i ngā taiao rauemi uaua o te ao.

Hei hanga i tētahi hua angitu, me mōhio koe ki te whakamahi i ngā tikanga whakatakotoranga hei whakau ake i ngā kai, hei wātea ake i roto i te koiora, hei whakaaetia hoki e ngā kaihoko. Ko ngā tauira e whai ake nei e whakaatu ana i ngā tikanga kua whakamatauria, kua pono hoki e mahi ana mō ngā momo tāpiringa maha e whakamahi ana i te paura tangohanga marigold.
Mā ngā karāhe ngohengohe ka whakanui ake i te mimiti o te lutein mā te whakakotahi i te paura 10–20% me ngā kaikawe ngako pēnei i te hinu MCT, te lecithin rānei, kia rite ai te horapa me te whakaiti i te waikura. Ka whakapai ake ngā kāpūkara mātotoru i te pumau mā te aukati i te mārama. He uaua ngā papa nā te ahotea pēhi, ka taea te kino i ngā tioata lutein. Ka tiakina e te microencapsulation ngā matūriki, ka hangaia he poroporo pumau e tika ana mō te whakatakoto papa. Mā te tāpiri i ngā antioxidants pēnei i te huaora E ka roa ake te ora o te papa. Mā ēnei rautaki whakatakotoranga ka whakarite kia rite te horopeta, kia pai ake te wātea o te koiora, me te mahi whakaputa nui pono.
Kei te piki haere te whakamahinga o te Lutein i roto i ngā inu, ngā miraka, me ngā kai mahi mā roto i ngā pūnaha wai matao e whakapūmau ana i te pumau me te tohatoha ōrite. Ka taea e ēnei hanganga te aro atu ki te tukatuka wera me te pupuri tonu i te kaha. Mā te arotau i ngā kare ā-roto, tae atu ki te whakakotahitanga reka, ka pai ake te manako o te kaihoko. Ka mahi anō hoki te Lutein hei tae taiao, hei whakakapi i ngā tae hangai i roto i ngā hua tapanga ma. Ko ngā horopeta noa o te 5–10 mg e taurite ana i ngā painga hauora me te whai hua o te utu, e pai ai te lutein mō ngā tono kai nui e aro ana ki te kai totika me te ataahua o te tirohanga.
Ka tautoko te Lutein i te hauora o te kiri mā te whakapai ake i te makuku, te ngāwari, me te ātete ki ngā kino i puta mai i te UV ina kainga ā-waha. Ka whakakotahihia e ngā hua Nutricosmetic te lutein me te collagen, te waikawa hyaluronic, me ngā antioxidants mō ngā painga whānui. Ka whakarei ake ngā momo tuku pēnei i ngā pēke iti i te ngāwari me te tutuki. Ahakoa he iti te whakamahinga ā-waha nā ngā take pumau, ka whakarite te tāpiringa ā-waha i te tohatoha pūnaha ki te kiri me ngā kanohi. Ka kukume ēnei hua mahi-rua i ngā kaihoko e rapu ana i ngā otinga oranga whakauru, inā koa i roto i ngā mākete ataahua me te ārai-pakeketanga.
Ka whakamahia e ngā waitohu matua ngā rautaki rerekē hei wehewehe i ngā hua. Ka whakamahia e te PreserVision AREDS 2 ngā ōwehenga kua whakamanahia e te haumanu o te lutein me te zeaxanthin, hei whakatakoto i tētahi paearu pūtaiao. Ka arotahi a MacuHealth ki ngā ōwehenga carotenoid tika e tautokona ana e ngā taputapu tātaritanga me ngā hongere haumanu. Ka tukuna e Bausch + Lomb Ocuvite ngā whakatakotoranga whānui e aro ana ki ngā kaihoko whānui. E whakaatu ana ēnei huarahi i te pānga o te hoahoa whakatakotoranga, te tautoko haumanu, me te tūnga ki te whakataetae me te wehewehenga mākete.

Kua noho te paura tango marigold hei wāhanga nui o te hauora o ngā kanohi nā te mea kei roto i a ia te lutein me te zeaxanthin tūturu, ā, kua whakaatuhia he painga hauora motuhake. Ina hoko ngā kaimahi hoko i tēnei kai, ka uru atu rātou ki ngā tukanga kua whakaatuhia hei tiaki i te ahotea waikura, hei aukati i te mārama kikorangi kino, hei whakaiti i te mōrearea o te pirau kanohi e pā ana ki te koroheketanga. He pai ake i ngā kōwhiringa hangai me ētahi atu puna tipu ina tae mai ki te waatea koiora, te ataahua tapanga ma, me te whakaae ture. Nā tēnei ka waiho te tango marigold tūturu hei whiringa pai mō ngā hua e aro ana ki ngā kiritaki e aro ana ki te hauora. Hei mahi i te puna pai, me titiro koe ki ngā pūnaha kounga, ngā tiwhikete, me ngā hanganga whakapā o ngā kaiwhakarato e tautoko ana i ngā whanaungatanga roa. Mā te mārama ki te whakamahi i ngā tāpiringa, ngā kai mahi, me ngā kāwai nutricosmetic hou ka taea te hanga hua hou ka taea te whakamahi i te whānuitanga o ngā āheinga mākete. I te mea he nui ake ngā rangahau e mahia ana hei kimi i ngā painga ake, ā, ka nui ake te mōhio o te tangata ki te hauora o ngā kanohi, ka noho tonu te lutein mai i ngā marigold hei wāhanga nui o ngā putea tautoko tirohanga.
Kua whakaatuhia te haumaru o te Lutein mai i te paura tango marigold i roto i ngā whakamātautau nui e pā ana ki te tangata. I whakamatautauria ngā horopeta tae atu ki te 20 mg ia rā mō ētahi tau, ā, kāore i kitea he pānga kino. Kua whakawhiwhia te matū ki te tūnga GRAS i te US, ā, kua whakaaetia te tūnga Novel Food i te EU. E whakaatu ana tēnei kei te whakapono ngā kaiwhakahaere ki tōna haumaru. Kāore te Lutein e huri hei huaora A pērā i te beta-carotene, nō reira kāore he āwangawanga mō te hypervitaminosis. Kāore anō kia maha ngā take e kore ai e whakamahia, engari me tūpato te hunga e mate pāwera ana ki te marigold.
E ai ki ngā rangahau haumanu, ko te kiato whatu o te tae kanohi ka piki ake i roto i ngā wiki 12 ki te 24 i muri i te tango i te 10 ki te 20 mg o te lutein i ia rā. Ko ngā pikinga whaiaro o te whakaoranga o te kanapa me te aro ki te rerekētanga ka puta wawe ake, i waenga i te 6 me te 8 wiki. Mā ēnei rā ka āwhina i ngā kaihoko ki te whakaako i ngā kaihoko i roto i te huarahi pono me te pupuri i ō rātou tumanakohanga mō ngā hua tāpiringa. He mea nui kia mau tonu te whakamahi nā te mea ka hoki te kiato o te tae kanohi ki te noa i roto i ētahi marama i muri i te whakamutu.
Ko ngā hua mahi tahi e whakakotahi ana i te lutein me te tangohanga bilberry, te saffron, me te astaxanthin e whakaatu ana e mahi tahi ana rātou ki te tautoko i te hauora o ngā kanohi i roto i te whānuitanga o ngā huarahi. Ka whakapai ake ngā anthocyanins i roto i ngā bilberries i te tirohanga pō me te rere o te toto, ā, ka tiaki ake ngā matū crocin i roto i te saffron i te macula mā roto i ngā huarahi antioxidant rerekē. Ka āwhina ngā waikawa ngako Omega-3, inā koa ko te DHA, ki te pupuri i te hauora o te kanohi me te aukati i te mumura. Mā te whiriwhiri i ngā kai i runga i te taunakitanga, ka taea e ēnei huinga te whakanoho motuhake i ngā hua me te tiaki i ngā wāhanga maha o te hauora o ngā kanohi.
Ka taea e te hunga e mahi ana i te hoko me te hanga i tētahi kaihanga paura tango marigold pono te whiwhi i ngā āwhina katoa e hiahiatia ana e rātou i Shaanxi New Things Biotech . Ka mahi tahi ā mātou hononga ki te mahi ahuwhenua, ā mātou ake tikanga tango, me ā mātou pūnaha whakaputa atamai kia tutuki tonu ai te kounga ki ngā paerewa o te ao. Kei a mātou he puna paerewa mai i te 5% ki te 80% te ihirangi lutein, kia taea ai e mātou te whakatutuki wawe i ngā hiahia o ngā kaupapa e tika ana kia mahia tonutia i roto i ngā rā e 2 ki te 4. Kei ia puranga he Tiwhikete Tātari kua tirohia e tētahi rōpū tuatoru, me ngā tiwhikete ISO, Kosher, me Halal me ngā mōhiohio hangarau hei tautoko i ngā tono ture mō ngā mākete huri noa i te ao. Haunga te whakarato rauemi, e whakapau kaha ana hoki mātou ki te tuku tohutohu hanga, āwhina mō te whakamātautau pumau, me te tautoko hangarau tere mā roto i ngā raina whakawhitiwhiti kōrero tika. Kei a mātou te mātauranga me te herekoretanga hei āwhina i a koe ki te whakamahi pai i tō putea hauora tirohanga, ahakoa kei te hanga koe i ngā tāpiringa hou e tutuki ana i te AREDS2, i ngā inu mahi hou, i ngā hua nutricosmetic ahurei rānei. Īmēra mai ki a mātou ki info@newthingsbiotech.com hei tiki tauira kore utu, hei kōrero mō ngā whakaritenga ahurei, hei kimi rānei me pēhea e taea ai e ā mātou otinga lutein te āwhina i tō whakarewatanga hua e whai ake nei kia eke ki tua atu i ngā tumanakohanga. Kua rite mātou ki te noho hei hoa mahi mōu i roto i te wā roa ki te kawe mai i te haumaru o ngā kanohi o te taiao ki te hunga e aro nui ana ki te hauora puta noa i te ao.
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3. Kijlstra, A., Tian, Y., Kelly, ER, & Berendschot, TT (2012). Lutein: ehara i te mea he tātari noa iho mō te mārama kikorangi. Progress in Retinal and Eye Research, 31(4), 303-315.
4. Ma, L., Dou, HL, Wu, YQ, Huang, YM, Huang, YB, Xu, XR, Zou, ZY, & Lin, XM (2012). Te kai Lutein me te zeaxanthin me te mōrearea o te pirau kanohi e pā ana ki te koroheketanga: he arotake pūnaha me te tātaritanga whānui. British Journal of Nutrition, 107(3), 350-359.
5. Stringham, JM, & Hammond, BR (2008). Te tae kanohi me te mahi tirohanga i raro i ngā āhuatanga kanapa. Optometry and Vision Science, 85(2), 82-88.
6. Yao, Y., Qiu, QH, Wu, XW, Cai, ZY, Xu, S., & Liang, XQ (2013). Mā te tāpiritanga Lutein ka pai ake te mahi tirohanga i roto i ngā taraiwa Hainamana: he rangahau matapōkere, matapo-rua, whakahaere-placebo mō te 1 tau. Nutrition, 29(7-8), 958-964.