Amababi y'icyayi

Amababi y'icyayi, azwi ku izina ry'icyayi, muri rusange arimo amababi n'amashami y'igiti cy'icyayi.Ibigize icyayi birimo icyayi cya polifenole, aside amine, catechine, cafeyine, ubushuhe, ivu, nibindi byiza byubuzima.Ibinyobwa by'icyayi bikozwe mu bibabi by'icyayi ni kimwe mu binyobwa bitatu by'ingenzi ku isi.

Inkomoko yamateka

Imyaka irenga 6000 irashize, abakurambere babaga kumusozi wa Tianluo, Yuyao, Zhejiang, batangiye gutera ibiti byicyayi.Umusozi wa Tianluo niho hantu hambere ibiti by'icyayi byatewe mu buhanga mu Bushinwa, byavumbuwe kugeza ubu na kera.

Umwami w'abami Qin amaze guhuza Ubushinwa, bwateje imbere guhanahana ubukungu hagati ya Sichuan no mu tundi turere, maze gutera icyayi no kunywa icyayi buhoro buhoro biva i Sichuan bijya hanze, bibanza gukwira mu kibaya cy'uruzi rwa Yangtze.

Kuva mu bihe bya nyuma y’ingoma y’iburengerazuba bwa Han kugeza mu Bwami butatu, icyayi cyateye imbere mu binyobwa bihebuje by’urukiko.

Kuva ku ngoma ya Jin y'Iburengerazuba kugeza ku ngoma ya Sui, icyayi cyahindutse ibinyobwa bisanzwe.Hariho kandi inyandiko ziyongera kubyerekeye kunywa icyayi, icyayi cyahindutse ibinyobwa bisanzwe.
Mu kinyejana cya 5, kunywa icyayi byamamaye mu majyaruguru.Yakwirakwiriye mu majyaruguru y'uburengerazuba mu kinyejana cya gatandatu n'icya karindwi.Hamwe no gukwirakwiza akamenyero ko kunywa icyayi, kunywa icyayi byiyongereye vuba, kandi kuva icyo gihe, icyayi cyabaye ikinyobwa gikunzwe n’amoko yose yo mu Bushinwa.

Lu Yu (728-804) wo ku ngoma ya Tang yerekanye muri “Icyayi cya kera”: “Icyayi ni ikinyobwa, gikomoka mu muryango wa Shennong, kandi cyumviswe na Lu Zhougong.”Mu gihe cya Shennong (ahagana mu 2737 mbere ya Yesu), havumbuwe ibiti by'icyayi.Amababi mashya arashobora kwangiza.“Materia Medica ya Shen Nong” yigeze kwandika iti: “Shen Nong aryoha ibyatsi ijana, ahura n'uburozi 72 ku munsi, akabona icyayi kugira ngo korohereze.”Ibi birerekana inkomoko yubuvumbuzi bwicyayi kugirango bukize indwara mubihe bya kera, byerekana ko Ubushinwa bwakoresheje icyayi byibuze mumyaka ibihumbi bine.

Ku ngoma ya Tang n'indirimbo, icyayi cyahindutse ikinyobwa gikunzwe "abantu badashobora kubaho badafite."