Ndingayiphepha njani iqanda ukusuka eluhlaza xa ukupheka?

Ukuthintela i-yolk yeqanda ukusuka ekuguqukeni eluhlaza xa kubila:

• gcina amanzi kwiqondo lobushushu okanye ngezantsi nje kweqondo lobushushu ukukhusela ukugqithisa
• Sebenzisa ipani enkulu kwaye ugcine amaqanda kwingoma enye
• Cima ubushushu xa amanzi efikelela kumaqondo obushushu abilayo
• Musa ukuvumela amaqanda emanzini ixesha elide; Imizuzu eli-10 ukuya kweli-12 yanele amaqanda aphakathi
• I-chill amaqanda ngamanzi abandayo emva kokupheka ukuze bayeke nayiphi na indlela yokuphendula yekhemikhali ukuguqula i-yolk eluhlaza

Isitshixo ukongeza ubushushu obaneleyo ukwenza iqanda nzima, kodwa hayi kakhulu kangangokuba ijika iluhlaza.

Yintoni inkqubo epheleleyo yekhemikhali eguqula i-yolk yeqanda eluhlaza xa igqitha?

Iinkqubo ezimbalwa ze-biochemical zenzeka ngaphambi kokuba i-iron ikwazi ukujongana ne-sulfure ukujikisa i-yolk yeqanda.

Masiye phezu kwabo inyathelo ngenyathelo.

Intsimbi kwiqanda leqanda

Iqanda leqashiko iqadi iqulethe i-2.7% yentsimbi, isondlo esibalulekileyo se-emblo. I-95% yentsimbi ibotshelelwe kwi-phosvitin, iprotein kwi-yolk yeqanda.

Xa i-emblo iqala ukukhula, imithambo yegazi ikhula ibe yi-yolk ukuba iphose izondlo.

Igazi lineeseli ezibomvu zegazi ezisebenzisa i-iron ukuba ithwale ioksijini kwinkukhu.

I-chick engazalwanga iphefumla ioksijini ngaphakathi kwiqanda. Ioksijini iyeza ngokusebenzisa iipores ezincinci kwi-Egshell. Iqanda lenkukhu esemgangathweni ine-7000 i-pores yeoksijini idlulile.

I-Sulfuur kwiqanda emhlophe

Sonke siyayazi i-Sulfuur njengoko inoxanduva lwe-odor ye-pungent yamaqanda abolileyo.

Iqanda elimhlophe lihlala lijikeleze i-yolk njengendawo yokukhusela ibulala iibhaktiriya engenayo. Igcwaliswe ngamanzi kunye neeprotein. Ngaphezulu kwesiqingatha seqanda elimhlophe liquka iprotein ovalbumin, iprotein equkethe amaqela e-Sulfhydryl yasimahla enesalfure.

I-cysteine

Iiproteri zeqanda zintshukumo ezinde ze-Amino Acids. Uninzi lwe-sulfure kwiiqanda zenkukhu iqulethwe kwi-Amino Alid Metion Methionine, isithinteli se-Amino Acid cysteine.

EBANTU, i-cysteine ​​idlala indima ebalulekileyo ekugayeni utywala. Yathandwa ngo-2020 xa izazinzulu zafumanisa i-cysteine ​​ingavumelana iimpawu ezinxulumene notywala, ezinjengesithuba kunye nentloko. I-sulfuur-ene-cysteine ​​equlathe amaqanda e-suoovers.

Ukufudumeza iqanda

Xa iqanda liyabanda, i-vitelline membrane sisithintelo esigcina iikhemikhali kwi-yolk sahlukile kwiqanda emhlophe. Kodwa xa uqala ukupheka iqanda, izinto ezimbalwa zenzeke.

Okokuqala, ubushushu benza iiprotein kwiqanda elivuthayo lingenzi kwaye lenze imingxunya entsha kunye. Le nkqubo ibizwa ngokuba yidanti kwaye sisizathu sokuba iqanda libe nzima xa ubilisa.

Ngenxa yayo yonke into engafakwanga, i-Sulfur ikhutshwa kwi-amino acid. Iqala ukwenza i-hydrogen sulfide, irhasi evumba njengamaqanda abolileyo. Sinethamsanqa liyisixa esincinci serhasi, okanye asizukutya amaqanda, okhe khe.

Sonke siyayazi into eyenzekayo ngesoda ukuba siyayishiya elangeni ixesha elide: isibakala segesi. Kwenzeka okufanayo ne-hydrogen sulfide, izama ukubaleka kwiqanda-white. Akukho ndawo zininzi kakhulu zerhasi ukuya, ngoko ke izama ukungqinelana neqanda leqanda.

Xa ushushu iqanda elide ngokwaneleyo kwaye kumaqondo obushushu aphezulu, iiproteni ze-phosvitin ezomeleleyo kwi-yolk iqala ukwahlukana ne-hydrolysis. I-phosvitin ayinakubamba kwi-iron, kwaye intsimbi ikhutshelwe kwi-yolk.

I-Iron Deads nge-sulfure

Intsimbi (Fe) evela kwi-yolk idibana ne-sulfur (s) kwiqanda elimhlophe kumphetho we-yolk, apho i-vitelline membrane iwa. Impendulo yekhemikhaliIvelisa i-sulfide ye-ferror(FES).

I-sulfide ye-sulfide yindawo ene-sulffide yentsimbi ebonakala iluhlaza xa ixutywe ne-yolk etyheli. Iziphumo zokugqibela yi-ficlocation-emnyama-emnyama ingena kwiqanda elide.

Eminye imithombo ibango eluhlaza ifumba i-ferric sulfide, kodwa yinto engenakuthelekiswa nanto engazinzanga engazinzanga yendalo kunye nokubola kwendalo kwi-sulror sulfide.

Zeziphi izinto ezandisa umngcipheko weqanda leqanda eligqwethekileyo?

Umngcipheko wokuqinisekiswa kwegrey-eluhlaza kwi-yolk yeqanda kuyanda xa:

• Iqanda liphekwe kubushushu obuphezulu kakhulu
• Iqanda lishushu ixesha elide
• Iqanda ligciniwe ixesha elide ngaphambi kokupheka
• Iqanda leqanda linamanqanaba aphezulu e-PH-
• upheka amaqanda kwi-Iron PAN

Amanqanaba e-pH yonyuselo lweqanda xa iqanda likhula. I-PH inokuguquka kwixabiso le-alkaline, ngekharbon diokside ishiya iqanda ngeentsuku ezimbalwa. Oku kukhulisa umngcipheko wokuba i-yolk yentsimbi iphinda iphendule i-sulfur emhlophe yeqanda.

Kuba intsimbi iguqula iqanda eliluhlaza, kungcono ukukuphepha ukupheka kwi-iron yentsimbi.

Uhlobo lwenkukhu, ubukhulu beqanda, umbala weqanda, kunye nomgangatho weqanda awuchaphazeli ukungqinelana eluhlaza kwe-yolk.

Isishwankathelo

I-Grey-Green Direclocation ye-olg yeqanda kwiqanda elibiweyo elibiweyo libangelwa kukungaphezulu. Ubushushu bwenza i-iron kwi-olk yeqanda asandul 'i-sulfure kwi-amhlophe leqanda. I-sulfide emnyama i-sulfide ibukeka iluhlaza ngaphezulu kweqanda leqanda eliphuzi.

Ukuthintela i-tinge eluhlaza, isitshixo sokuthintela i-iron kwi-yolk ukuba ikhutshwe. Ezantsi kubushushu bamanzi kwaye uqinisekise ukuba iqanda lishushu kuphela ngokwaneleyo ukuba libe nzima. Ngokukhawuleza phula ngamanzi abandayo emva kokupheka.