Qhov sib txawv tseem ceeb ntawm ethanol fermentation thiab lactic acid fermentation yog ethanol fermentation tsim ethanol raws li cov khoom byproduct, whereas lactic acid fermentation ua lactate raws li ib tug byproduct.
Fermentation yog txheej txheem uas tshwm sim nyob rau hauv cov xwm txheej anaerobic. Yog li ntawd, nws tshwm sim thaum tsis muaj molecular oxygen. Ntau cov microbes, nroj tsuag, thiab tib neeg cov leeg nqaij muaj peev xwm ua rau muaj kev fermentation. Thaum lub sij hawm fermentation, qab zib molecules hloov mus rau hauv cawv thiab acids. Cov tshuaj tiv thaiv no muaj kev siv zoo hauv kev tsim khoom ntawm cov khoom siv mis nyuj, cov khoom bakery thiab dej cawv.
Ethanol Fermentation yog dab tsi?
Ethanol fermentation, tseem hu ua cawv fermentation, yog cov txheej txheem lom neeg uas hloov cov suab thaj rau hauv lub zog ntawm tes. Cov piam thaj molecules uas tuaj yeem ua tiav cov txheej txheem no suav nrog qabzib, fructose, thiab sucrose. Thaum lub sij hawm tsim cov cellular zog, cov txheej txheem no tsim ethanol thiab carbon dioxide ib yam nkaus. Cov no yog cov byproducts ntawm ethanol fermentation.
Daim duab 01: Ethanol Fermentation Process
Qhov fermentation no tshwm sim thaum muaj cov poov xab thiab tsis muaj cov pa oxygen. Yog li ntawd, peb tuaj yeem muab nws lub npe hu ua anaerobic biological txheej txheem. Ntxiv mus, cov txheej txheem no tshwm sim nyob rau hauv qee hom ntses xws li goldfish thiab muab cov ntses nrog lub zog thaum tsis muaj oxygen txaus.
Feem ntau, ethanol fermentation hloov ib mole ntawm qabzib mus rau ob moles ntawm ethanol thiab ob moles ntawm carbon dioxide. Qhov no tsim ob moles ntawm ATP. Thaum xav txog sucrose molecule, nws muaj ob lub suab thaj molecules: qabzib thiab fructose txuas rau ib leeg. Yog li ntawd, thaum sucrose yog siv rau ethanol fermentation, thawj kauj ruam yog cleavage ntawm cov molecules nrog kev siv cov invertase enzyme los rhuav tshem glycosidic bond ntawm qabzib thiab fructose. Tom qab ntawd, cov piam thaj tau tawg ua ob lub pyruvate molecules los ntawm glycolysis, thiab tom qab ntawd pyruvate hloov mus rau hauv ethanol thiab carbon dioxide los ntawm ob kauj ruam.
Lactic Acid Fermentation yog dab tsi?
Lactic acid fermentation yog cov txheej txheem lom neeg uas cov piam thaj lossis cov suab thaj zoo sib xws tau hloov mus rau hauv lub zog ntawm tes thiab metabolite lactate. Ntawm no, cov piam thaj molecule tuaj yeem yog cov piam thaj los yog lwm yam 6-carbon qab zib molecule. Disaccharides xws li sucrose tuaj yeem siv tau. Lactate yog lactic acid hauv kev daws. Lactic acid fermentation yog cov txheej txheem anaerobic uas tshwm sim hauv qee cov kab mob thiab cov tsiaj hlwb, suav nrog cov leeg hlwb.
Daim duab 02: Ib qho Isomer ntawm Lactic Acid
Thaum muaj cov pa oxygen hauv cov hlwb, lub xov tooj ntawm tes zoo li hla cov txheej txheem fermentation thiab ua pa ntawm tes. Tab sis muaj qee yam facultative anaerobic kab mob uas tuaj yeem ua tau ob qho tib si fermentation thiab ua pa thaum muaj pa oxygen.
Muaj peb txoj hauv kev lactic acid fermentation tuaj yeem tshwm sim: txheej txheem homofermentative, txheej txheem heterofermentative, thiab txoj hauv kev bifidum. Hauv cov txheej txheem homofermentative, cov kab mob homofermentative tuaj yeem hloov cov piam thaj rau hauv ob lub molecules ntawm lactate, thiab lawv tuaj yeem siv cov tshuaj tiv thaiv no los ua cov txheej txheem phosphorylation kom ua tau ob lub ATP molecules.
Qhov txawv ntawm Ethanol Fermentation thiab Lactic Acid Fermentation yog dab tsi?
Ethanol fermentation lossis cawv fermentation thiab yog txheej txheem lom neeg uas hloov cov suab thaj rau hauv lub zog ntawm tes. Lub caij no, lactic acid fermentation yog cov txheej txheem lom neeg uas cov piam thaj lossis cov suab thaj zoo sib xws tau hloov mus rau hauv lub zog ntawm tes thiab cov metabolite lactate. Qhov sib txawv tseem ceeb ntawm ethanol fermentation thiab lactic acid fermentation yog tias ethanol fermentation tsim ethanol raws li cov khoom lag luam, thaum lactic acid fermentation tsim lactate raws li cov khoom lag luam. Dhau li ntawd, ethanol fermentation muaj 29% efficiency whereas lactic acid fermentation muaj 41% efficiency.
Cov hauv qab no qhia txog qhov sib txawv ntawm ethanol fermentation thiab lactic acid fermentation hauv daim ntawv tabular.
Summary – Ethanol Fermentation vs Lactic Acid Fermentation
Ethanol fermentation yog txheej txheem lom neeg uas hloov cov suab thaj rau hauv lub zog ntawm tes. Lactic acid fermentation yog cov txheej txheem lom neeg uas cov piam thaj lossis cov suab thaj zoo sib xws tau hloov mus rau hauv lub zog ntawm tes thiab cov metabolite lactate. Qhov sib txawv tseem ceeb ntawm ethanol fermentation thiab lactic acid fermentation yog tias ethanol fermentation tsim ethanol ua cov khoom lag luam, whereas lactic acid fermentation ua lactate raws li cov khoom lag luam.
