Nyob rau hauv cov xwm txheej anaerobic, cov pyruvate tuaj yeem hloov mus rau ethanol, qhov twg nws thawj zaug hloov mus rau hauv nruab nrab molecule hu ua acetaldehyde, uas ntxiv cov pa roj carbon dioxide, thiab acetaldehyde hloov mus rau hauv ethanol. Hauv cawv fermentation, tus txais hluav taws xob hu ua NAD + raug txo kom tsim NADH.
Acetaldehyde txo qis rau hauv fermentation yog dab tsi?
Cov pyruvate tom qab ntawd decarboxylated rau acetaldehyde nrog rau kev tso tawm carbon dioxide. Qhov no acetaldehyde intermediate ces txo mus rau ethanol . Thaum lub sij hawm tus txheej txheem no, tshaj acetaldehyde tuaj yeem tsim tau yog SO2 yog ntxiv thaum lub sijhawm fermentation lossis yog tias muaj pH nce lossis fermentation kub.
Acetaldehyde txo qis rau ethanol li cas?
Kev txo qis ntawm acetaldehyde rau ethanol yog cov tshuaj tiv thaiv oxidation-txo. Acetaldehyde raug txo los ntawm qhov sib ntxiv ntawm 2 electrons thiab 2 hydrogen ions muab los ntawm NADH , uas yog txo rau NAD+. … Cov tshuaj tiv thaiv tshwm sim ntawm qhov chaw enzyme, tom qab uas cov khoom thiab enzyme raug tso tawm.
Acetaldehyde yog dab tsi hauv cawv fermentation?
Acetaldehyde yog tsim los ntawm cov poov xab thaum muaj cawv fermentation, thiab nws qhov kev hloov kho cuam tshuam rau npias tsw thiab zoo. Hauv txoj kev tshawb fawb tam sim no, peb tau txheeb xyuas ob hom kab mob poov xab nrog qib qis ntawm acetaldehyde los qhia txog qhov muaj peev xwm.mechanism txhawb nqa qhov tsim nyog qis acetaldehyde ntau lawm los ntawm cov kab no.
Tus neeg sawv cev txo qis hauv cawv fermentation yog dab tsi?
Nyob rau hauv cawv thiab lactic acid fermentation, NADH + H +yog tus txo tus neeg sawv cev uas deoxidized rau NAD +. Lub zog tso tawm nyob rau hauv ob qho tib si cov txheej txheem tsis ntau ntau thiab tag nrho cov txiaj ntsig ntawm ATP molecules tsim thaum lub sij hawm fermentation yog ob, uas yog tsawg heev piv rau aerobic respiration.
