Cov kab mob leavening tuaj yeem faib ua ob pawg: cov roj ntsha leavening tus sawv cev thiab cov tshuaj tua kab mob tshuaj tua kab mob.
1. Cov kab mob lom keeb kwm roj (poov xab)
Poov xab yog ib qho tseem ceeb heev uas tau ua los ntawm cov kab mob pasta. Nws tsis tsuas yog nce qib ntim ntawm cov khoom lag luam, tab sis kuj tseem muaj tus txhuam-zoo li tus qauv, thiab tuaj yeem txhim kho tus nqi noj haus thiab qhov tsw ntawm cov khoom noodle.
2. Tshuaj tua kab mob tshuaj tua kab mob
Cov tshuaj tua kab mob rau cov tshuaj xyaw ua kom sib xyaw ua ke yog tsim los ntawm cov tshuaj lom neeg thiab tuaj yeem faib ua ib qho tshuaj tua kab thiab ib qho tshuaj tsw qab ntawm cov neeg sawv cev.
(1) Tus neeg sawv cev ntawm cov tshuaj muaj leavening tus neeg sawv cev ib leeg yog feem ntau yog NaHCO3 thiab NH4HCO3, ob qho tag nrho yog cov sib txuas yooj yim. Na2CO3, uas decomposed los ntawm NaHCO3, yuav hnov mob nrog roj ntawm qhov kub kom tsim cov tshuaj tiv thaiv saponification, uas yuav ua rau cov khoom tsis zoo, tsis hnov tsw, nce pH, tob hauv xim thiab rhuav tshem cov ntaub so ntswg. NH3HCO3 decomposed NH3 roj yog yooj yim soluble hauv dej. Kev tsim cov NH4OH ua rau cov khoom lag luam muaj ntxhiab tsw, nce pH, thiab muaj kev puas tsuaj ntau rau cov vitamins. Yog li, NaHCO3 thiab NH4HCO3 yuav tsum siv ntau li ntau tau. Kev sib xyaw ntawm ob tuaj yeem txo qee qhov tsis xws. NH4HCO3 feem ntau tsuas yog siv rau hauv cov khoom uas muaj cov dej noo tsawg dua, xws li biscuits.
(2) Cov tshuaj tua kab mob sib xyaw ua ke Cov kab mob sib xyaw ua ke feem ntau muaj peb txheej txheem: cov roj carbon, cov roj qab ntsev, cov hmoov txhuv thiab cov roj ntsha. Tus kab mob sib xyaw ua ke sib xyaw ua ke tuaj yeem tau faib raws li kev sib xyaw ua ke ntawm cov ntsev thiab cov tshuaj tiv thaiv.
