Decoloration Method Ntawm Cov Roj Noj

Ib co Decoloration txoj kev ntawm edible roj

Cov xim xim hauv cov roj zaub uas tau noj tau yog qhov nyuaj, feem ntau suav nrog chlorophyll, carotene, flavone pigment, anthocyanin, thiab cov khoom decomposition ntawm qee cov suab thaj thiab cov protein. Tsis tas li ntawd, cov roj cog qoob loo muaj cov xim av xim liab gossypol, uas yog ib qho tshuaj lom. Raws li feem ntau ntawm cov xim pigment muaj qhov ruaj khov, nws yuav tsum tau kho los ntawm cov txheej txheem decolorization. Cov xim index ntawm cov roj edible yog ib qho ntawm cov yam ntxwv indexes los ntsuas qhov zoo ntawm cov roj edible, tshwj xeeb tshaj yog rau cov roj siv nyob rau hauv edible, cosmetic thiab zoo tshuaj teb, qhov yuav tsum tau rau nws cov xim yog nruj dua. Cov xim nyob rau hauv edible roj yuav cuam tshuam cov tsos thiab kev ua tau zoo ntawm cov roj. Cov pigments sib txawv muaj qhov sib txawv ntawm qhov ruaj khov ntawm cov roj. Yog li ntawd, nyob rau hauv tus txheej txheem ntawm edible roj ua, edible roj yuav tsum tau decolorized los hloov cov xim ntawm edible roj; Lub hom phiaj ntawm kev ua cov roj edible tau raws li qhov yuav tsum tau muaj ntawm cov khoom sib txawv.

Decolorization txoj kev ntawm edible roj:

1. Adsorption decolorization

2. Decolorization los ntawm cua sov

3. Oxidative decoloration

4. Tshuaj reagent decolorization

Adsorption decolorization feem ntau yog siv rau hauv decolorization ntawm edible roj. Lub hauv paus ntsiab lus ntawm adsorption decolorization txoj kev yog siv cov yam ntxwv uas cov adsorbent muaj zog adsorption quab yuam tuaj yeem adsorb pigments thiab lwm yam impurities hauv cov roj kub, thiab tshem tawm cov adsorbed pigments thiab impurities thaum lim cov adsorbent, thiaj li ua tiav lub hom phiaj ntawm decolorization thiab purification. ntawm edible roj.

General tej yam kev mob rau edible oil decolorization (adsorption decolorization):

1. Kev xav tau rau adsorbent

Lub adsorbent yuav tsum muaj zog adsorption muaj peev xwm, zoo xaiv, tsis tshua muaj roj nqus tus nqi, tsis muaj tshuaj tiv thaiv nrog polonium, tsis muaj ntxhiab tsw tshwj xeeb thiab saj, tsis tshua muaj nqi thiab ntau qhov chaw. Activated av nplaum yog siv dav siv adsorbent.

2. Decolorization kub

Tsis tshua muaj kub yog qhov zoo rau saum npoo adsorption; Thaum qhov kub thiab txias, tshuaj adsorption tuaj yeem nqa tawm, tab sis nws yooj yim rau decompose cov xab npum los tsim cov roj fatty acids. Yog li ntawd, lub siab decoloration kub feem ntau yog 104-110 degree nyob rau hauv ib txwm siab thiab 82 degree nyob rau hauv lub nqus tsev vacuum.

3. Lub sijhawm decolorization

Kev ua haujlwm tsis tu ncua rau 15-30min thiab tsis tu ncua decoloration rau 5-10min.

4. Cov roj noo noo

Thaum cov roj av noo qis dua {{0}}.2 feem pua, nws yuav cuam tshuam rau cov av nplaum adsorption thaum nws nce mus txog 0.3%. Cov ntsiab lus phosphorus tsawg dua 10-30mg / kg.

5. Cov av nplaum

Txog qhov uas tau teev tseg cov nyhuv decolorization tiav.

Decolorizing Tank nta:

Hom ntawm edible oil decolorizing adsorbents:

1. Ntuj drift av

Nws lub npe tshawb fawb yog bentonite, uas yog ntuj adsorbent. Feem ntau yog dawb los yog tawm dawb. Lub ntuj bleaching av muaj tsawg decoloration coefficient, tsis muaj decoloration muaj peev xwm rau chlorophyll thiab siab roj nqus tus nqi.

2. Ua kom av nplaum

Nws yog ib hom adsorbent nrog kev ua haujlwm siab, uas yog ua tiav los ntawm kev kho tshuaj lom neeg nrog bentonite ua raw khoom. Nws yog dav siv hauv kev lag luam. Nws muaj peev xwm adsorption muaj zog rau cov xim thiab cov tshuaj colloidal, tshwj xeeb tshaj yog rau qee pawg atomic los yog j-groups.

3. Cov pa roj carbon activated

High decolorization coefficient, tshem tawm polycyclic aromatic hydrocarbons thiab cov tshuaj tua kab residual, tshem tawm cov soaps seem, thiab tsis muaj kev cuam tshuam rau roj tsw. Tab sis tus nqi yog kim thiab cov roj nqus tau siab. Thaum tsim nyog, nws yuav tsum tau tov nrog activated av nplaum.

Cov nyhuv decolorization ntawm edible oil thiab decolorization efficiency ncaj qha cuam tshuam rau qhov zoo ntawm cov roj tiav thiab cov nqi ua. Hauv kev tsim cov roj edible, nws yog ib qho haujlwm ceev rau txhua qhov kev cog qoob loo cog qoob loo kom tau txais cov txiaj ntsig zoo ntawm cov roj decolorization txheej txheem raws li qhov xwm txheej tiag tiag thiab ua tib zoo xav txog cov yam ntxwv ntawm kev ua kom cov roj zoo thiab txuag nqi ntau lawm.

Cim npe nrov: decoloration txoj kev ntawm edible roj, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas, yuav, pheej yig