Enzymatic browning yog dab tsi?

Cov txheej txheem:

Enzymatic browning yog dab tsi?
Enzymatic browning yog dab tsi?
Anonim

Browning yog txheej txheem ntawm cov zaub mov tig xim av vim yog cov tshuaj lom neeg uas tshwm sim hauv. Cov txheej txheem ntawm browning yog ib qho ntawm cov tshuaj tiv thaiv uas tshwm sim hauv cov khoom noj chemistry thiab sawv cev rau cov ntsiab lus tshawb fawb txog kev noj qab haus huv, khoom noj khoom haus, thiab khoom noj khoom haus technology.

txhais li cas los ntawm enzymatic browning?

Enzymic browning yog an oxidation reaction uas tshwm sim hauv qee yam khoom noj, feem ntau yog txiv hmab txiv ntoo thiab zaub, ua rau cov zaub mov tig xim av. Oxidation tshwm sim hauv cov khoom noj thiab cov khoom tsis yog khoom noj. … 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 yog dab tsi thiab koj tiv thaiv nws li cas?

Ntxiv citric, ascorbic lossis lwm yam acids, xws li vinegar, txo qis pH thiab tiv thaiv cov enzymatic browning. Thaum lub sij hawm enzymatic browning, polyphenols hnov mob nrog oxygen. Yog tias muaj lwm yam cuam tshuam nrog cov pa oxygen, enzymatic browning yuav tsis tshwm sim. … Cov dej txo qis kev sib cuag nrog oxygen thiab tiv thaiv cov enzymatic browning.

Vim li cas enzymatic browning tshwm sim?

Cov txheej txheem enzymatic browning tsuas yog tshwm sim thaum PPO, phenolic tebchaw thiab oxygen tuaj sib cuag nrog ib leeg. Qhov no yog qhov tshwm sim thaum cov txiv ntoo txiav, ntog lossis khob ntau dhau.

Qhov twg ntawm cov no yog piv txwv ntawm enzymatic browning?

Enzymatic browning tuaj yeem pom hauv cov txiv hmab txiv ntoo (apricots, pears,bananas, grapes), zaub (qos, nceb, lettuce) thiab kuj nyob rau hauv cov nqaij nruab deg (cws, spiny lobsters thiab crabs). Enzymatic browning yog kev puas tsuaj rau qhov zoo, tshwj xeeb tshaj yog tom qab sau qoob loo ntawm cov txiv hmab txiv ntoo tshiab, kua txiv hmab txiv ntoo thiab qee cov plhaub ntses.

Pom zoo:

Nthuav cov khoom
Vim li cas thiaj li ua pov thawj qhov kev soj ntsuam?
Nyeem ntxiv

Vim li cas thiaj li ua pov thawj qhov kev soj ntsuam?

Kev Tshawb Fawb Txog Kev Pom Zoo (CFA) yog cov txheej txheem txheeb cais siv los txheeb xyuas cov qauv ntawm cov txheej txheem pom zoo. CFA tso cai rau tus kws tshawb fawb los ntsuas qhov kev xav tias muaj kev sib raug zoo ntawm cov kev hloov pauv tau pom thiab lawv cov hauv paus latent tsim muaj.

Qhov twg yog genicular anastomosis?
Nyeem ntxiv

Qhov twg yog genicular anastomosis?

a periarticular arterial network hla pem hauv ntej thiab ob sab ntawm lub hauv caug, tsim los ntawm cov ceg ntawm cov hlab ntsha genicular, ntawm tsib cov hlab ntsha genicular los ntawm popliteal, ntawm tibial anterior rov tshwm sim, thiab ntawm fibular circumflex ceg ntawm lub posterior tibial.

Kuv yuav tsum tsiv mus rau modesto ca?
Nyeem ntxiv

Kuv yuav tsum tsiv mus rau modesto ca?

Modesto yog qhov chaw zoo los pib tsev neeg nrog cov kev kawm tshwj xeeb rau cov menyuam yaus. Modesto muaj ntau qhov chaw mus kav khw thiab noj. Hauv plawv nroog txhim kho thiab zoo nkauj heev, tshwj xeeb tshaj yog txij thaum hmo ntuj tawm mus thiab qee qhov kev nyab xeeb raug ntiav.