Ultra nplua tshuaj yej hmoov yog ib hom tshiab tshuaj yej cov khoom tsim los ntawm cov tshuaj yej nplooj tshiab los ntawm cov txheej txheem tshwj xeeb, uas tuaj yeem siv ncaj qha raws li ultra- cov khoom zoo. Qhov loj me me yog nyob ib ncig ntawm 300 mesh (inch 50 μ m).
Ultra nplua tshuaj yej hmoov tau ntse tsim los ntawm Nyiv thiab Tuam Tshoj nyob rau hauv thaum ntxov 1990s.
Tam sim no, ultrafine tshuaj yej hmoov tau siv dav hauv kev lag luam xws li zaub mov, dej haus, thiab cov khoom siv tshuaj txhua hnub. Tam sim no, ultrafine tshuaj yej hmoov tsuas yog suav nrog ultrafine ntsuab tshuaj yej hmoov thiab ultrafine dub tshuaj yej hmoov.
1. Cov txheej txheem ua haujlwm thiab thev naus laus zis ntawm ultrafine ntsuab tshuaj yej hmoov
Ultra nplua 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 ultra zoo sib tsoo.
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 ntsuab tshwj xeeb yog thawj zaug siv thaum nplooj tshiab kis tau, ua raws li siab - kub withering los rhuav tshem cov haujlwm ntawm polyphenol oxidase thiab khaws cov polyphenol compounds, tsim cov tshuaj yej ntsuab tsw.
Thaum kawg, ultrafine hais yog tsim los siv ultrafine sib tsoo tshuab. Cov yam ntxwv zoo ntawm ultrafine ntsuab tshuaj yej hmoov yog: muag heev thiab zoo li zoo li, ci ntsuab xim, siab aroma, nplua nuj thiab mellow saj, thiab ntsuab kua zaub xim.
Ultra nplua ntsuab tshuaj yej hmoov zoo sib xws hauv 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.
Qhov zoo ntawm ultrafine hais ntawm ultrafine ntsuab tshuaj yej hmoov yog txiav txim siab los ntawm peb yam hauv qab no:
① Cov ntsiab lus noo noo ntawm ib nrab- cov khoom tiav: Cov dej noo ntawm ib nrab- cov khoom tiav tiav nrog cov tshuaj yej ntsuab ultrafine hmoov yuav tsum tau tswj qis dua 5%. Qhov siab dua cov dej noo ntawm semi- cov khoom tiav, qhov zoo dua cov fiber ntau toughness, thiab qhov nyuaj rau fibers thiab nplooj tawv nqaij kom tawg nyob rau hauv sab nraud quab yuam.
② Sab nraud quab yuam daim ntawv thov txoj kev: Cov fibers thiab nplooj tawv nqaij ntawm semi{0}} tiav qhuav tshuaj yej tsob nroj yuav tsum tau tawg thiab crushed los ntawm sab nraud quab yuam los ua ultrafine hais ntawm ultrafine ntsuab tshuaj yej hmoov. Txoj kab uas hla ntawm cov khoom sib txawv nyob ntawm seb lub zog siv sab nraud (crushing method). Ob lub log sib tsoo thiab pob milling txoj kev yog siv rau crushing nyob rau hauv qhov kev txiav txim ntawm rotational quab yuam, uas yog tsis conducive mus rau tawg thiab crushing ntawm tshuaj yej stems thiab stems; Hom pas nrig ncaj yog raws li lub hauv paus ntsiab lus ntawm hammering, uas muaj lub luag haujlwm ntawm shearing, kev sib txhuam, thiab tearing. Nws crushes qhuav tshuaj yej tsob nroj fibers thiab nplooj nqaij kom huv si thiab muaj ib tug zoo ntxim.
③ Qhov kub ntawm cov khoom siv tshuaj yej: cov xim ntsuab thiab cov khoom zoo yog qhov tseem ceeb cuam tshuam rau qhov zoo ntawm ultrafine ntsuab tshuaj yej hmoov.
Nyob rau hauv cov txheej txheem ntawm kev sib tsoo ultrafine, raws li lub sij hawm sib tsoo ntev, cov khoom siv tshuaj yej crushed muaj kev sib txhuam, shearing, thiab tearing ntawm cov ntaub ntawv, uas generates tshav kub thiab ua rau kub ntawm cov crushed khoom tshuaj yej mus tas li nce. Chlorophyll raug puas tsuaj nyob rau hauv qhov kev ua ntawm tshav kub, thiab cov xim ntawm ultrafine ntsuab tshuaj yej hmoov hloov daj.
Yog li ntawd, thaum lub sij hawm ntawm crushing ultrafine ntsuab tshuaj yej hmoov, qhov kub ntawm cov khoom crushed tshuaj yej yuav tsum nruj me ntsis tswj, thiab cov crushing khoom yuav tsum tau nruab nrog ib tug txias ntaus ntawv.
2. Cov txheej txheem ua haujlwm thiab thev naus laus zis ntawm ultrafine dub tshuaj yej hmoov
Ultra nplua dub tshuaj yej hmoov yog ua tiav los ntawm cov tshuaj yej tshiab nplooj los ntawm withering, dov, fermentation, lub cev qhuav dej thiab ziab, thiab ultra zoo sib tsoo.
Nws cov yam ntxwv zoo suav nrog cov khoom me me thiab cov khoom sib xws, xim xim av xim av, mellow thiab qab zib saj, nplua nuj aroma, thiab sib sib zog nqus liab kua zaub xim.
Piv nrog rau cov tshuaj yej dub zoo tib yam, ultrafine dub tshuaj yej hmoov muaj qhov loj me me (feem ntau nyob ib ncig ntawm 300 mesh), thiab nws cov xim liab, saj, thiab aroma yog tib yam li cov tshuaj yej dub.
Cov tshuaj yej nplooj tshiab nyob rau lub caij nplooj ntoos hlav, lub caij ntuj sov, thiab lub caij nplooj zeeg tuaj yeem ua tiav rau hauv ultrafine dub tshuaj yej hmoov, thiab lub caij ntuj sov thiab lub caij nplooj zeeg nplooj tshiab yog cov khoom siv zoo tshaj plaws.
Cov kauj ruam ua rau ultrafine dub tshuaj yej hmoov: Cov nplooj tshiab → Withering (natural withering, withering in a withering trough, or withering under sunlight) → Rolling → Breaking and screening, fermentation → Dehydration and drying → ultrafine crushing → Finished product ntim.
