Poov siv dav dav hauv kev lag luam khoom noj khoom haus thiab ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom ci, dej haus (dej haus muaj cawv) thiab cov khoom pov tseg.
1. Daim ntawv thov cov poov xab hauv cov khoom ci
Poov Siv yog cov roj ntsha roj ntsha ua rau cov zaub mov hauv tsev lag luam, feem ntau yog tsim cov khoom ci xws li mov ci thiab dej qab zib nplawm. Qhov ntau ntawm cov pa roj carbon monoxide CO2 tau tsim nyob rau hauv lub khob noom cookie fermentation, kom lub khob cij thiab xoob, qhov ntim tau loj, thiab lub qhov ncauj tawm zuj zus thiab ua qab, txaus siab rau qhov xav tau ntawm cov neeg xav tau. Thaum lub khob noom cookie yog fermented, ntau cov khoom sib txawv thiab cov khoom tsis sib xws muaj feem xyuam rau cov qhob cij tsw yog tsim, thiab esters tau tsim thaum lub sijhawm ua cov txheej txheem ci los tsim lub tsw zoo ntawm lub khob cij (cov tshuaj lom neeg leavening tsis muaj cov nyhuv no). Lub ntsiab ntawm cov poov xab yog protein (30% ~ 40% ntawm lub cev qhuav), thiab qhov muaj cov amino acids tseem ceeb txaus, tshwj xeeb tshaj yog cov ntsiab lus siab ntawm lysine. Ntawm qhov tod tes, cov poov xab kuj muaj qhov ntau ntawm cov vitamins B, muaj 20 μg rau 40 μg ntawm thiamine, 60 μg txog 80 μg ntawm riboflavin, thiab 280 ofg ntawm niacin ib gram ntawm cov poov xab qhuav.
2. Kev thov cov poov xab hauv cov cawv txiv hmab ntau lawm
Feem ntau ntawm cov khoom noj khoom haus ntxiv yog tshwj xeeb thiab ntau yam. Ntxiv rau kev ua ib qho tshuaj tua kab mob, cov poov xab kuj tseem ceeb hauv kev tsim cov dej haus thiab cov cawv. Haus caw yog cov khoom noj haus uas nrov rau cov neeg Suav thiab muaj keeb kwm ntawm kev tsim khoom ntev. Cov dej qab zib tau muab faib ua cov cawv uas muaj cawv (npias, cawv, cawv daj) thiab cov dab (cov cawv dawb, brandy). Cov dej cawv ua rau lub cev tsis zoo, uas tuaj yeem txhawb cov leeg hauv lub siab, ua kom ntshav khiav ceev thiab tshem tawm kev qaug zog. Poov xab yog nyob hauv cov dej haus. Ua lub luag haujlwm tseem ceeb heev.
3. Kev thov cov poov xab nyob hauv kev ua lag luam brewing
Cov txheej txheem ntau lawm ntawm kev ua cov dej khov nab kuab yog cov txheej txheem hauv cov txheej txheem ntawm kev hloov pauv biochemical tau ua nyob rau hauv qhov kev nqis tes ua ntawm cov enzyme nyuaj ntawm cov kab mob me. Cov kev sib raug zoo ntawm cov poov xab thiab kev lag luam brewing yog qhov ze heev. Lub qab ntawm cov kua ntses, kua ntsw, kua qaub thiab ntau hom khoom noj fermented feem ntau yog ua los ntawm cov poov xab.
4. Lwm yam kev siv ntawm keeb ua poov xab
1 Kev rho tawm ntawm Cov Khoom Uas Muaj Hwj Ciam Cov tseem ceeb yog muaj protein ntau thiab muaj lwm yam khoom noj muaj txiaj ntsig, yog li nws tuaj yeem tsim muaj ntau yam muaj txiaj ntsig zoo los ntawm cov poov xab. 2 Cov Khoom Noj Ntxiv Tshiab Cov poov xab extract muaj ntau ntawm soluble ammonia thiab ib qhov ntau ntawm cov vitamins B. Muaj cov phosphorus thiab cov zaub mov taug, uas tuaj yeem muab ntxiv rau cov zaub mov thiab muaj qee yam kev kho mob. 3 Enzyme Concentrate Poov xab autolysate tuaj yeem tso tawm invertase thiab β-galactosidase, uas tuaj yeem siv hauv kev lag luam khoom noj khoom haus. 4 Ua cov nucleic acids nrog brewing poov xab. Hauv ntej, poov xab tau siv dav hauv khoom noj khoom haus thiab kev lag luam.
