Yuav Ua Li Cas Boil Cov Qe Zoo Tshaj - Ua Kev Tshawb Fawb

2024 Tus sau: Malcolm Clapton | [email protected]. Kawg hloov kho: 2023-12-17 03:58

Kev tshawb fawb yuav pab tau koj kom boil lub qe nrog ib tug zoo tagnrho qauv ntawm yolk thiab proteins.

Nws yog ib qho kev xav tsis zoo uas cov qe boiling yog ib qho yooj yim. Qhov tseeb, nws yog cov txheej txheem tshuaj lom neeg uas cuam tshuam los ntawm ntau yam.

Cov kws tshawb fawb paub tseeb tias cov qe boiling yog ib yam tshuaj thiab tsis yog lub cev txheej txheem.

Lauren McCoon yog ib tug kws tshuaj nyob hauv University of Arkansas.

Thaum rhuab, thermal tshwm sim. Feem ntau ntawm cov qe hloov los ntawm cov kua rau cov khoom. Lub qe boiled tsis yog lub qe nyoos lawm, tsis muaj txoj hauv kev los faib cov khoom rau hauv nws cov khoom yav dhau los. Yog li qhov no yog kev hloov tshuaj. Nws yog irreversible.

Los ntawm qhov pom ntawm kev lag luam khoom noj khoom haus, qe yog cov ntsiab lus protein ntau. Protein denaturation tshwm sim thaum ua noj ua haus nyob rau hauv lub siab kub.

Cov theem ntawm kev ua noj qe raws li Lersh

Chemist Martin Lersh tau ua ib txoj kev tshawb fawb txog Towards lub zoo meej mos boiled qe. kom paub seb qhov kub ntawm lub qe cuam tshuam li cas rau nws cov qauv. Nws muab ib lub rooj uas piav qhia txog cov theem uas lub qe mus rau hauv cov txheej txheem ua noj.

Qe kub, ° C	Protein xeev	Yolk mob
62	Pib thicken, kua	Ua kua
64	Ib nrab thickened, kua	Pib ua kom tuab
66	Feem ntau thickened, tab sis tseem ua kua	tuab tab sis mos
70	Ua tuab	Ua tuab
80	Hardened	Hardened
90	Nyuaj thiab ntom	Tau ib tug crumbly qauv

Cov theem no twb muab lub tswv yim ntxhib ntawm qhov siab npaum li cas lub qe yuav tsum tau ua kom sov kom tau txais qhov xav tau kev ntxhib los mos.

Lub xeev ntawm aggregation ntawm lub qe thaum lub sij hawm ua noj ua haus yog cuam tshuam los ntawm ntau yam:

• qe hnyav;
• qe kub (nws tuaj yeem khaws cia hauv chav sov lossis hauv tub yees);
• dej kub (thaum lub sij hawm tso lub qe rau hauv dej);
• dej npau npau npaum li cas;
• atmospheric siab (tus nqi ntawm boiling dej nyob ntawm no);
• qhov siab tshaj hiav txwv theem (atmospheric siab nyob ntawm no).

Williams Formula

Dr. Charles D. Williams, physicist ntawm University of Exeter, tsim ib lub mis uas muaj peev xwm xam tau lub sij hawm ua noj ntawm lub qe boiled. Nws nyob ntawd:

Ntawm no t yog lub sijhawm ua noj, min., M yog qhov loj ntawm lub qe, g, T_qe - qe kub, ° C, T_dej - dej kub, ° C, T_yolk - xav tau qe qe kub, ° C, K - qe thermal conductivity coefficient, ρ - qe ntom, g / cm³, c yog lub peev xwm kub ntawm lub qe.

Koj tuaj yeem pom tag nrho layout ntawm no.

Charles D. Williams

Raws li cov qauv no, lub qe nruab nrab (~ 57 g) ncaj qha los ntawm lub tub yees (T_qe = 4 ° C) koj yuav tsum tau ua noj rau 4, 5 feeb. Tab sis ib lub qe zoo sib xws yuav tsum tau muab rhaub rau 3.5 feeb yog tias nws khaws cia hauv chav sov (T_qe = 21 ° C). Yog tias tag nrho koj cov qe khaws cia hauv lub tub yees, lub qe me (47 g) yuav tsum tau boil rau 4 feeb, thiab lub qe loj (67 g) yuav siv sijhawm 5 feeb.

Barham's formula

Muaj lwm cov qauv uas koj siv tau. Peter Barham, hauv nws phau ntawv Kev Tshawb Fawb Txog Kev Ua Noj, muab cov qauv yooj yim dua, uas, txawm li cas los xij, muab cov txiaj ntsig tsis raug. Txhawm rau ua noj lub qe siv cov mis Barham, koj tsuas yog yuav tsum paub lub cheeb ntawm lub qe ntawm nws qhov dav tshaj plaws.

Ntawm no d yog txoj kab uas hla ntawm lub qe, cm.

Txawm li cas los xij, nco ntsoov tias Barham's formula muab lub sijhawm thaum qhov nruab nrab ntawm cov yolk ncav cuag qhov kub thiab txias T_yolk, thaum Williams xam lub sijhawm mus txog T_yolk rau ciam teb ntawm yolk thiab protein.

Martin Lersh piv rau ob qho qauv thiab thov tias lawv muab cov kev nyeem ntawv ncaj ncees nrog qhov tsis sib xws me me.

Lersh daim ntawv qhia qhia lub sij hawm ua noj rau 50 qe ntsuas thiab txheeb los ntawm qhov hnyav thiab ib puag ncig siv ob qho qauv qhia. Dub dots ntawm daim duab yog Williams boiled qe, liab dots raws li Barkham. T_yolk = 63 ° C, T_dej = 100 ° C thiab T_qe = 4 ° C. Rau cov xwm txheej no, cov qauv muab cov txiaj ntsig zoo sib xws. Interestingly, qhov ntsuas ntawm lub cheeb ntawm lub qe yog tiag tiag tsis yog heev, uas piav txog xws li ib tug tawg nyob rau hauv cov kev tshwm sim.

Lub laij lej online

Yog tias koj tsis tuaj yeem suav lub sijhawm ua noj siv Williams lossis Barham cov qauv, nws muaj txoj hauv kev yooj yim dua. Siv lub laij lej online uas yuav qhia koj lub sijhawm zoo los ua noj qe los ntawm lub sijhawm nws raus hauv dej npau npau.

Txhawm rau xam, koj tsuas yog yuav tsum paub qhov hnyav lossis qeb thiab qhov kub ntawm lub qe, nrog rau qhov siab ntawm chav ua noj saum hiav txwv. Cov ntawv thov no rau Android thiab iOS yuav pab koj pom nws.

Xam lub sij hawm ua noj ntawm qe →