Tam sim no, matcha hmoov feem ntau suav nrog tshuaj yej ntsuab hmoov thiab tshuaj yej dub hmoov. Lawv cov txheej txheem txheej txheem tau piav qhia luv luv raws li hauv qab no.

1. Txheej txheem ntawm cov tshuaj yej ntsuab hmoov

Ntsuab tshuaj yej hmoov yog ua tiav los ntawm cov tshuaj yej nplooj tshiab los ntawm cov tswv yim xws li kev sib kis, kev kho ntsuab tiv thaiv, withering, dov, lub cev qhuav dej thiab ziab, thiab kev sib tsoo ultrafine. Tus yuam sij rau nws cov thev naus laus zis ua haujlwm nyob rau hauv yuav ua li cas txhawm rau txhim kho chlorophyll tuav tus nqi thiab tsim cov khoom ultrafine. Thaum lub sijhawm ua haujlwm, cov txheej txheem kev tiv thaiv tshwj xeeb ntsuab yog thawj zaug siv thaum cov nplooj tshiab kis tau, ua raws li qhov kub thiab txias ua kom puas tsuaj rau cov dej num ntawm polyphenol oxidase thiab khaws cov polyphenol tebchaw, tsim cov tshuaj yej ntsuab tsw. Thaum kawg, ultrafine hais yog tsim los siv ultrafine sib tsoo tshuab.

Cov yam ntxwv zoo ntawm cov tshuaj yej ntsuab hmoov: muag muag thiab zoo ib yam, ci ntsuab xim, siab aroma, nplua nuj thiab mellow saj, thiab ntsuab kua zaub xim. Ultra nplua ntsuab tshuaj yej hmoov zoo ib yam li saj thiab aroma rau cov tshuaj yej ntsuab tsis tu ncua, tab sis nws cov xim tshwj xeeb yog ntsuab thiab cov khoom zoo tshwj xeeb. Yog li ntawd, cov txheej txheem ua tiav ntawm ultrafine ntsuab tshuaj yej hmoov yog qhov tseem ceeb nyob rau hauv ob yam: yuav ua li cas siv ntsuab tiv thaiv technology los tiv thaiv chlorophyll puas, tsim ntsuab xim, thiab siv ultrafine crushing technology los tsim ultrafine hais.

① Kev tsim ntawm emerald ntsuab xim: ci emerald ntsuab xim ntawm qhuav tshuaj yej thiab emerald ntsuab xim ntawm tshuaj yej kua zaub yog cov yam ntxwv tseem ceeb ntawm qhov zoo ntawm ultrafine ntsuab tshuaj yej hmoov. Nws cov xim yog feem ntau cuam tshuam los ntawm cov muaj pes tsawg leeg, cov ntsiab lus, thiab kev faib ua feem ntawm cov xim uas muaj nyob rau hauv cov tshuaj yej tshiab nplooj lawv tus kheej thiab cov tsim thaum lub sij hawm ua. Thaum lub sijhawm ua cov tshuaj yej ntsuab, vim qhov kev puas tsuaj tseem ceeb ntawm chlorophyll a thiab tsawg dua chlorophyll b, cov xim maj mam hloov ntawm ntsuab mus rau daj raws li kev ua tiav; Thaum lub sijhawm ua haujlwm, magnesium atoms hauv cov qauv molecular ntawm chlorophyll tau yooj yim hloov los ntawm hydrogen atoms vim yog cov av noo thiab cua sov, ua rau magnesium oxidation ntawm chlorophyll thiab hloov xim los ntawm ci ntsuab mus rau ntsuab tsaus. Yog li ntawd, txhawm rau ua cov tshuaj yej ntsuab ultrafine hmoov nrog cov tshuaj chlorophyll siab, kev sib xyaw ua ke zoo ntawm kev tiv thaiv ntsuab thiab kev ua haujlwm zoo yuav tsum tau txais yuav. Nyob rau tib lub sijhawm, tshuaj yej lub vaj tuaj yeem siv rau shading kev kho mob thiab cov ntaub ntawv nplooj tshiab ntawm cov tshuaj chlorophyll tshuaj yej tsob ntoo ntau yam tuaj yeem xaiv rau kev tsim khoom.

② Tsim cov khoom siv ultrafine: Cov khoom zoo yog lwm yam tseem ceeb ntawm qhov zoo ntawm cov tshuaj yej ntsuab hmoov. Tom qab ua cov nplooj tshiab rau hauv cov khoom tiav, cov nroj tsuag fibers ntawm cov tshuaj yej qhuav yog tawg thiab cov nplooj tawv nqaij yog crushed los ntawm cov khoom siv sab nraud. Vim tias cov tshuaj yej yog cov khoom siv cog nrog cov ntsiab lus siab ntawm cellulose, kev saib xyuas yuav tsum tau them rau:

ib. Tshuaj yej yuav tsum tau qhuav. Feem ntau, qhuav tshuaj yej muaj cov dej noo tsawg dua 5%.

b. Xaiv txoj kev tsim nyog ntawm kev siv dag zog sab nraud. Qhov degree ntawm tshuaj yej pulverization txawv nyob ntawm seb lub zog sab nraud ua rau nws. Tam sim no, txoj hauv kev tseem ceeb yog siv lub log sib tsoo, pob milling, cua ntws pulverization, khov pulverization, thiab ncaj pas nrig rauj. Los ntawm kev tsim cov teebmeem ntawm lub cev xws li shear, kev sib txhuam, thiab kev vibration siab ntawm cov nplooj tshuaj yej, cov tshuaj yej tsob ntoo fibers thiab mesophyll hlwb raug torn sib nrug kom ua tiav ultrafine pulverization. Kev tshawb fawb pom tau hais tias kev siv lub pas nrig ncaj rautshuaj yej crushingyog qhov tsim nyog tshaj plaws.

c. Tswj cov khoom siv tshuaj yej kub: Nyob rau hauv cov txheej txheem sib tsoo ultrafine, raws li cov tshuaj yej nplooj raug crushed, cov khoom kub tseem nce ntxiv, thiab xim yuav tig daj. Yog li ntawd, cov khoom siv crushing yuav tsum tau nruab nrog lub tshuab cua txias los tswj qhov kub ntawm cov khoom. Lub rhiab thiab uniformity ntawm cov nplooj tshiab raw cov ntaub ntawv yog cov khoom hauv paus rau qhov zoo ntawm ultrafine ntsuab tshuaj yej hmoov. Cov ntaub ntawv raw rau kev ua cov tshuaj yej ntsuab hmoov yog feem ntau haum rau lub caij nplooj ntoos hlav thiab caij nplooj zeeg tshuaj yej nplooj tshiab. Raws li kev tshawb fawb los ntawm Tea Research Institute ntawm Suav Academy ntawm Kev Tshawb Fawb Txog Kev Ua Liaj Ua Teb, cov ntsiab lus chlorophyll hauv cov nplooj tshiab siv los ua cov tshuaj yej ntsuab hmoov yuav tsum siab dua 0.6%. Txawm li cas los xij, nyob rau lub caij ntuj sov, cov tshuaj yej nplooj tshiab muaj cov ntsiab lus chlorophyll tsawg thiab muaj zog iab saj, ua rau lawv tsis tsim nyog rau kev ua cov tshuaj yej ntsuab ultrafine hmoov.

Ntsuab tshuaj yej hmoov ua cov kauj ruam: nplooj tshiab yog kis rau ntsuab tiv thaiv kev kho mob →steam withering(los yog nruas withering), ib nplooj yog crushed rau hauv pieces (nruas withering yog siv, cov txheej txheem no tsis tas yuav tsum tau) →dov→ thaiv kev tshuaj ntsuam → lub cev qhuav dej thiab ziab → ultrafine sib tsoo → ntim khoom tiav.