Oxidation tshwm sim hauv cov khoom noj thiab cov khoom tsis yog khoom noj. Enzymic browning yog ib qho reaction uas yuav tsum tau ua ntawm enzymes thiab oxidation txhawm rau tshwm sim. … Cov pa hauv huab cua tuaj yeem ua rau cov txiv hmab txiv ntoo hlais rau xim av, txheej txheem hu ua enzymic browning (ib qho tshuaj tiv thaiv oxidation).
enzymatic browning hauv chemistry yog dab tsi?
Enzymatic browning yog ib qho kev cuam tshuam tseem ceeb tshaj plaws uas tshwm sim hauv cov txiv hmab txiv ntoo thiab zaub, feem ntau ua rau muaj qhov tsis zoo rau xim, saj, tsw, thiab khoom noj muaj txiaj ntsig. Cov tshuaj tiv thaiv yog qhov tshwm sim ntawm phenolic tebchaw 'oxidation los ntawm polyphenol oxidase (PPO), uas ua rau tsim cov xim tsaus nti.
Y Yuav ua li cas enzyme ua rau oxidation?
Lub enzyme lub luag haujlwm rau cov xim av hu ua polyphenol oxidase (los yog PPO). Nyob rau hauv lub xub ntiag ntawm oxygen PPO enzyme hloov tshuaj hu ua phenolic compounds (los ntawm ib tug txheej txheem ntawm oxidation) mus rau hauv sib txawv tebchaw hu ua quinones.
YPuas oxidation yog enzymatic?
Ib oxidative enzyme yog ib qho enzyme uas catalyses cov tshuaj tiv thaiv oxidation. Ob hom oxidative enzymes feem ntau yog peroxidases, uas siv hydrogen peroxide, thiab oxidases, uas siv cov pa oxygen molecular. Lawv nce tus nqi uas ATP yog tsim tawm aerobically.
enzymatic browning yog dab tsi thiab koj tiv thaiv nws li cas?
Lub cev txoj hauv kev los tswj cov enzymatic browning suav nrog kev kho cua sov, tiv thaiv cov pa oxygen, sivntawm qhov kub thiab txias, thiab irradiation. Kev kho cua sov, xws li blanching, tuaj yeem yooj yim inhibit qhov kev ua haujlwm enzymatic vim enzymes, uas muaj cov proteins, yog denatured [7, 8].
