Uma sikhuluma ngetiye, sivame ukukhuluma ngokuvutshelwa okugcwele, ukuvutshelwa okuncane, nokuvutshelwa okulula. Iumshini wokuvubelaumshini wokucubungula ovame ukusetshenziswa enqubweni yokuvutshelwa kwetiye. Ake sifunde ngokuvutshelwa kwetiye.

Ukuvutshelwa kwetiye - i-biological oxidation

Itiye laseShayina lihlukaniswe izigaba eziyisithupha ezinkulu zetiye ngokwamazinga ahlukene okuvutshelwa kanye nezindlela zokukhiqiza ezibanzi. Etiyeni, lona leli qabunga eliluhlaza licutshungulwa libe yitiye eliluhlaza, itiye elimnyama, itiye le-oolong, njll. nge-oxidation yebhayoloji elawulwayo, inqubo ebizwa nangokuthi ukuvutshelwa ngokungalungile. Le nqubo ifana nochungechunge lwe-enzymatic reactions, futhi mhlawumbe kufanele ibizwe nge-biological oxidation. Ngosizo lwe-oxidation ye-biological of tea cell wall damage in theumshini wokuvubela itiye, ama-oxidase akhona odongeni lwamaseli akhuthaza uchungechunge lwezinqubo ze-oxidation zamacatechin.

Emaseli etiye, ama-catechin akhona kuketshezi lweseli, kuyilapho i-oxidase itholakala ikakhulukazi odongeni lweseli, hhayi ikakhulukazi kuma-microorganisms, ngakho udonga lwamaseli ludinga ukonakala. Lokhu kuchaza ngokwemvelo ukuthi kungani itiye elibilile lidinga ukugoqelwa ngeitiye leaf roller. Ngokwezinga elihlukile le-oxidation yama-polyphenols, ingahlukaniswa ibe ukuvutshelwa okugcwele, ukuvutshelwa kwe-semi-fermentation kanye nokuvutshelwa okukhanyayo. Etiyeni elimnyama, izinga le-oxidation lama-polyphenols liphezulu kakhulu, elibizwa ngokuthi ukuvutshelwa okugcwele; etiyeni le-oolong, izinga le-oxidation lama-polyphenols cishe liyingxenye, ebizwa ngokuthi i-semi-fermentation.

Okungenhla incazelo eyisisekelo yokuvutshelwa okuvame ukushiwo etiyeni lesiShayina. Kodwa-ke, ngenxa yezinhlobonhlobo eziningi zetiye e-China, amasu okucubungula acebile nezindlela zokulilungiselela, kanye nezincazelo ezahlukene zekhwalithi, abantu bavame ukusebenzisa.umshini wokucubungula itiye kagesiukwenza ukuvutshelwa okulawulwayo. Enqubweni yokukhiqiza nekhwalithi yamanye amaqabunga etiye, ngaphezu kokuvutshelwa okukhulunywe ngenhla ngomqondo we-biological oxidation ngaphezu kokusabela kwayo kwe-enzymatic, ama-microorganisms azophinde ahileleke kwezinye izixhumanisi.