Icyayi cyera kiva kuriKamellia sinensistera nkicyayi cyirabura, icyayi kibisi nicyayi cya oolong. Nubwoko bumwe bwubwoko butanu bwicyayi bita icyayi cyukuri. Mbere yuko amababi yicyayi yera afungura, amababi asarurwa kugirango atange icyayi cyera. Utubuto dusanzwe dutwikiriwe nu musatsi wera ugabanije izina ryicyayi. Icyayi cyera gisarurwa cyane mu ntara ya Fujian yo mu Bushinwa, ariko hari n'ababikora muri Sri Lanka, Ubuhinde, Nepal na Tayilande.
Oxidation
Icyayi nyacyo cyose kiva mumababi yikimera kimwe, bityo itandukaniro riri hagati yicyayi rishingiye kubintu bibiri: terroir (akarere gahingwamo igihingwa) nuburyo bwo kubyaza umusaruro.
Kimwe mu bitandukanyirizo mubikorwa byo gutunganya buri cyayi cyukuri nigihe cyamababi yemerewe okiside. Abashinzwe icyayi barashobora kuzunguruka, kumenagura, guteka, umuriro n'amababi ya parike kugirango bafashe mugikorwa cya okiside.
Nkuko byavuzwe, icyayi cyera nicyo gitunganijwe cyane cyicyayi cyukuri bityo ntigikora inzira ndende ya okiside. Bitandukanye nuburyo burebure bwa okiside yicyayi cyirabura, bivamo ibara ryijimye, rikungahaye, icyayi cyera cyumye gusa kandi cyumye ku zuba cyangwa ibidukikije bigenzurwa kugirango bibungabunge ubusitani-bushya bwicyatsi.
Umwirondoro
Kubera ko icyayi cyera gitunganijwe byoroheje, kiranga uburyohe bworoshye uburyohe bworoshye kandi bworoshye bwumuhondo. Ifite uburyohe buke. Iyo ikozwe neza, ntabwo ifite uburyohe butangaje cyangwa busharira. Hariho ibintu byinshi bitandukanye, bifite imbuto, ibimera, ibirungo n'ibimenyetso byindabyo.
Ubwoko bw'icyayi cyera
Hariho ubwoko bubiri bwicyayi cyera: Urushinge rwa silver na Peony yera. Ariko, hariho ibindi byayi byinshi byera birimo Long Life Eyebrow na Tribute Eyebrow hamwe nicyayi cyera cyabanyabukorikori nka Ceylon White, African White na Darjeeling White. Urushinge rwa silver na White Peony bifatwa nkibisumba byose iyo bigeze ku bwiza.
Urushinge rwa silver (Bai Hao Yinzhen)
Ubwoko bwa silver inshinge nicyayi cyiza cyane kandi cyiza. Igizwe gusa nuduti twibara rya feza nka mm 30 z'uburebure kandi itanga uburyohe bworoshye, uburyohe. Icyayi gikozwe hifashishijwe amababi akiri mato avuye mu gihingwa cyicyayi. Icyayi cya silver Icyayi cyera gifite ibara rya zahabu, impumuro yindabyo numubiri wibiti.
Peony Yera (Bai Mu Dan)
White Peony nicyayi cya kabiri cyiza cyane cyicyayi cyera kandi gifite imvange yamababi namababi. Muri rusange, White Peony ikorwa hifashishijwe amababi abiri yo hejuru. Icyayi cyera cya Peony gifite uburyohe bukomeye kuruta ubwoko bwa silver inshinge. Ibiryo bigoye bivanga inoti yindabyo hamwe numubiri wuzuye hamwe nintungamubiri nkeya. Iki cyayi cyera nacyo gifatwa nkigiciro cyiza cyo kugura ugereranije na silver inshinge kuko ihendutse kandi iracyatanga uburyohe bushya, bukomeye. Icyayi cyera cya Peony nicyatsi kibisi na zahabu kirenze icyiza.
Inyungu zubuzima bwicyayi cyera
1. Ubuzima bwuruhu
Abantu benshi barwana nibidasanzwe byuruhu nka acne, inenge hamwe nibara. Nubwo ibyinshi muribi byuruhu bidatera akaga cyangwa byangiza ubuzima, biracyababaje kandi birashobora kugabanya icyizere. Icyayi cyera kirashobora kugufasha kugera kumubiri bitewe na antiseptic na antioxidant.
Ubushakashatsi bwakozwe na kaminuza ya Kinsington i Londres bwerekanye ko icyayi cyera gishobora kurinda ingirangingo z’uruhu kwangizwa na hydrogen peroxide n’ibindi bintu. Icyayi cyera gikungahaye kuri Antioxidant kandi gifasha kurandura radicals yubusa ishobora gutera ibimenyetso byo gusaza imburagihe harimo pigmentation hamwe ninkinko. Imiti igabanya ubukana bwa antioxydants yicyayi yera irashobora kandi gufasha kugabanya gutukura no gutwikwa biterwa nindwara zuruhu nka eczema cyangwa dandruff (1).
Kubera ko acne ikunze guterwa no guhumana no kwiyubaka byubusa, kunywa igikombe cyicyayi cyera rimwe cyangwa kabiri kumunsi birashobora guhanagura uruhu. Ubundi, icyayi cyera kirashobora gukoreshwa nkigikoresho cyoza neza kuruhu. Urashobora kandi gushira igikapu cyicyayi cyera ahantu hose hagaragaye ibibazo kugirango wihute gukira.
Ubushakashatsi bwakozwe na 2005 bwakozwe na Pastore bwerekanye ko icyayi cyera gishobora kugirira akamaro abantu barwaye uruhu harimo rosacea na psoriasis. Ibi birashobora gutanga umusanzu wa epigallocatechin gallate iri mucyayi cyera ifasha kubyara selile nshya muri epidermis (2).
Icyayi cyera kirimo fenolike nyinshi, zishobora gushimangira kolagen na elastine zitanga uruhu rworoshye, rwubusore kuruhu. Izi poroteyine zombi ni ingenzi mu kurema uruhu rukomeye no kwirinda iminkanyari kandi ushobora kuboneka mu bicuruzwa bitandukanye bivura uruhu.
2. Kurinda Kanseri
Ubushakashatsi bwerekanye isano iri hagati yicyayi cyukuri nubushobozi bwo kwirinda cyangwa kuvura kanseri. Nubwo ubushakashatsi butarangiye, inyungu zubuzima bwo kunywa icyayi cyera ahanini ziterwa na antioxydants na polifenol ku cyayi. Antioxydants mu cyayi cyera irashobora gufasha kubaka RNA no kwirinda ihinduka ryimiterere ya selile itera kanseri.
Ubushakashatsi bwakozwe mu mwaka wa 2010 bwerekanye ko antioxydants mu cyayi cyera yagize akamaro kanini mu kwirinda kanseri kuruta icyayi kibisi. Abashakashatsi bifashishije icyayi cyera kugira ngo bagabanye kanseri ya kanseri y'ibihaha muri laboratoire kandi ibisubizo byagaragaje ko urupfu ruterwa na selile. Mugihe ubushakashatsi bukomeje, ibisubizo byerekana ko icyayi cyera gishobora gufasha guhagarika ikwirakwizwa rya selile kanseri ndetse bikagira uruhare mu rupfu rw ingirabuzimafatizo (3).
3. Kugabanya ibiro
Kubantu benshi, guta ibiro birenze gufata icyemezo cyumwaka mushya; ni urugamba rwose rwo kumena pound no kubaho igihe kirekire kandi ufite ubuzima bwiza. Umubyibuho ukabije ni umwe mu batanga umusanzu mu gihe gito cyo kubaho no gutakaza ibiro bigenda byiyongera ku byo abantu bashira imbere.
Kunywa icyayi cyera birashobora kugufasha kugera ku ntego zawe zo kugabanya ibiro ufasha umubiri wawe gufata intungamubiri neza kandi ugasuka ibiro byoroshye mukwihutisha metabolism. Ubushakashatsi bwakozwe mu Budage mu 2009 bwerekanye ko icyayi cyera gishobora gufasha gutwika amavuta y’umubiri wabitswe ari nako birinda ko habaho ingirabuzimafatizo nshya. Catechine iboneka mu cyayi cyera irashobora kandi kwihutisha inzira zifungura no gufasha kugabanya ibiro (4).
4. Ubuzima bwimisatsi
Ntabwo icyayi cyera ari cyiza kuruhu gusa, kirashobora no gufasha gushiraho umusatsi muzima. Antioxydants yitwa epigallocatechin gallate yerekanwe kuzamura imisatsi no kwirinda umusatsi imburagihe. EGCG yerekanye kandi amasezerano mugihe ivura indwara zuruhu zo mumutwe zatewe na bagiteri zirwanya imiti isanzwe (5).
Icyayi cyera kandi gisanzwe kirinda kwangirika kwizuba, bishobora gufasha gutuma umusatsi utuma mugihe cyizuba. Icyayi cyera kirashobora kugarura umusatsi karemano kandi nibyiza gukoreshwa hejuru nka shampoo niba ushaka kubyara inyungu.
5. Itezimbere Gutuza, Kwibanda no Kumenyesha
Icyayi cyera gifite ubunini bwa L-theanine hagati yicyayi cyukuri. L-theanine izwiho kunoza kuba maso no kwibanda mu bwonko muguhagarika ibintu bishimishije bishobora gutera gukora cyane. Mugutuza ibitera ubwonko, icyayi cyera kirashobora kugufasha kuruhuka mugihe nanone byongera ibitekerezo (6).
Iyi miti ivanze kandi yerekanye ibyiza byubuzima mugihe cyo guhangayika. L-theanine ishishikarizwa kubyara neurotransmitter GABA, ifite ingaruka zo gutuza bisanzwe. Igice cyiza cyo kunywa icyayi cyera niwowe ushobora kubona inyungu zo kongera kuba maso nta ngaruka mbi ziterwa no gusinzira cyangwa ubumuga buzanwa nibiyobyabwenge byanduza imiti.
Icyayi cyera kirimo na kafeyine nkeya ishobora kugufasha gutangira umunsi wawe cyangwa gutanga ifunguro rya nyuma ya saa sita. Ugereranije, icyayi cyera kirimo mg 28 za cafine muri buri gikombe cya 8-une. Ibyo biri munsi yikigereranyo cya mg 98 mugikombe cyikawa kandi kiri munsi ya mg 35 mucyayi kibisi. Hamwe na kafeyine nkeya, urashobora kunywa ibikombe byinshi byicyayi cyera kumunsi nta ngaruka mbi ibikombe byikawa bishobora kugira. Urashobora kugira ibikombe bitatu cyangwa bine kumunsi kandi ntuhangayikishwe no gusetsa cyangwa kugira ibitotsi.
6. Ubuzima bwo mu kanwa
Icyayi cyera gifite flavonoide nyinshi, tannine na fluoride zifasha amenyo gukomeza kugira ubuzima bwiza kandi akomeye. Fluoride izwi cyane nkigikoresho cyo gukumira amenyo kandi ikunze kuboneka mu menyo yinyo. Tannine na flavonoide byombi bifasha mukurinda iyubakwa rya plaque ishobora gutera amenyo no kubora (7).
Icyayi cyera kandi kiranga antiviral na antibacterial zifasha kugumana amenyo n amenyo. Kugirango ubone amenyo yubuzima bwicyayi cyera, gerageza kunywa ibikombe bibiri kugeza kuri bine kumunsi hanyuma wongere ushire imifuka yicyayi kugirango ukuremo intungamubiri zose hamwe na antioxydants.
7. Fasha kuvura Diyabete
Diyabete iterwa n'impamvu zishingiye ku mibereho no ku mibereho kandi ni ikibazo cyiyongera ku isi ya none. Kubwamahirwe, hariho inzira nyinshi zo kugenzura no kurwanya diyabete kandi icyayi cyera nimwe murimwe.
Catechine mu cyayi cyera hamwe nizindi antioxydants byagaragaye ko bifasha kwirinda cyangwa kugenzura diyabete yo mu bwoko bwa 2. Icyayi cyera gikora neza kugirango kibuze ibikorwa bya enzyme amylase yerekana kwinjiza glucose mu mara mato.
Ku bantu barwaye diyabete yo mu bwoko bwa 2, iyi misemburo igabanya ibinyamisogwe mu isukari kandi bishobora gutera isukari mu maraso. Kunywa icyayi cyera birashobora gufasha kugenzura iyo mitwe uhagarika umusaruro wa amylase.
Mu bushakashatsi bwakozwe mu Bushinwa mu mwaka wa 2011, abahanga mu bya siyansi basanze kunywa icyayi cyera byagabanije glucose mu maraso ku kigero cya 48 ku ijana kandi byongera imisemburo ya insuline. Ubushakashatsi bwerekanye kandi ko kunywa icyayi cyera byafashaga kugabanya polydipsia, inyota ikabije iterwa n'indwara nka diyabete (8).
8. Kugabanya Umuriro
Catechins na polifenol mu cyayi cyera birata anti-inflammatory ishobora gufasha kugabanya ububabare bworoheje. Ubushakashatsi bw’inyamaswa zo mu Buyapani bwasohotse mu kinyamakuru MSSE bwerekanye ko catechine iboneka mu cyayi cyera ifasha mu gukira vuba imitsi no kwangirika kwimitsi (9).
Icyayi cyera kandi gitezimbere kandi kigatanga ogisijeni mu bwonko no mu ngingo. Kubera iyo mpamvu, icyayi cyera gifite akamaro mukuvura ububabare bwumutwe nububabare bukabije.