Cov txiv hmab txiv ntoo twg cuam tshuam los ntawm cov enzyme browning?

Cov txheej txheem:

Cov txiv hmab txiv ntoo twg cuam tshuam los ntawm cov enzyme browning?
Cov txiv hmab txiv ntoo twg cuam tshuam los ntawm cov enzyme browning?
Anonim

Lub enzymatic browning tau raug suav tias yog ib qho teeb meem tseem ceeb ua rau kev lag luam poob ntawm cov txiv hmab txiv ntoo xws li apples, pears, bananas, grapes, thiab lwm yam thiab zaub xws li lettuce, qos yaj ywm, nceb., etc.

Cov zaub mov twg ua rau cov enzyme browning cuam tshuam?

Cov enzyme hauv txiv hmab txiv ntoo thiab zaub uas ua rau cov xim xim av tsim hauv cov zaub mov hu ua polyphenol oxidase. Enzymic browning tuaj yeem pom hauv cov txiv hmab txiv ntoo xws li apricots, pears, txiv tsawb, txiv hmab txiv ntoo thiab avocados, thiab zaub xws li aubergines, qos yaj ywm, lettuce.

Puas enzymatic browning cuam tshuam tag nrho cov txiv hmab txiv ntoo?

Enzymatic browning yog ib qho ntawm cov tshuaj tiv thaiv tseem ceeb tshaj plaws uas tshwm sim hauv feem ntau fruits thiab zaubnrog rau cov nqaij nruab deg. Cov txheej txheem no cuam tshuam tus saj, xim, thiab tus nqi ntawm xws li foods.

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

Oxygen hauv huab cua tuaj yeem ua rau sliced txiv hmab txiv ntoo rau xim av, txheej txheem hu ua enzymic browning (ib qho tshuaj tiv thaiv oxidation). Phenols thiab enzyme phenolase muaj nyob rau hauv lub hlwb ntawm cov kua, thiab thaum cov no raug rau oxygen nyob rau hauv cov huab cua, piv txwv li los ntawm slicing, cov pa oxygen ua rau ib tug tshuaj tiv thaiv.

YPuas Avocado cuam tshuam los ntawm enzymatic browning?

Nyob rau hauv lub xub ntiag ntawm oxygen, ib qho enzyme avocados muaj, hu ua polyphenol oxidase, pab hloov pauv ntawm phenolic cov tebchaw rauLwm chav kawm ntawm cov tshuaj, quinones. … Qhov browning no tsis tshwj xeeb rau avocados – lub browning ntawm ntau lwm cov txiv hmab txiv ntoo, xws li txiv apples, kuj yog ib tug tshwm sim ntawm qhov kev tshwm sim.

Pom zoo:

Nthuav cov khoom
Qhov twg sidehows pib?
Nyeem ntxiv

Qhov twg sidehows pib?

Sideshows thawj zaug tshwm sim ntawm txoj kev ntawm Oakland, California thaum lub sijhawm nruab nrab xyoo 1970 Thawj qhov kev ua yeeb yam yog thawj zaug ad hoc carhows uas tib neeg yuav tuaj koom hauv Eastmont Mall lossis Foothill Square chaw nres tsheb.

Hom kev sib txuas lus twg yog qhov siab tshaj hauv kev tshaj tawm kev nplua nuj?
Nyeem ntxiv

Hom kev sib txuas lus twg yog qhov siab tshaj hauv kev tshaj tawm kev nplua nuj?

Kev sib txuas lus ntsej muag yog qhov nruab nrab nplua nuj tshaj plaws raws li MRT vim nws tso cai rau kev sib pauv ntawm tus kheej ib txhij los ntawm cov ntsiab lus lus, lub suab, lub ntsej muag, kev taw qhia ntawm saib, gestures, thiab postures.

Puas yog ib lub cubic mev ntawm asph alt hnyav?
Nyeem ntxiv

Puas yog ib lub cubic mev ntawm asph alt hnyav?

Kub Asph alt thiab pob zeb sib tov hnyav ze rau 4000 lbs ib cubic yard. Kev Ntsuas Topsoil hnyav li cov xuab zeb, gravels, thiab pob zeb zoo nkauj, Tab sis Blended Av xws li Topsoil Blend los yog Roob Blend hnyav li ntawm 1500 lbs ib cubic mev.