Kodi ndingapewe bwanji dzira kuti lisasanduka wobiriwira pophika?

Kupewa dzira yolk kuti isatembenuke wobiriwira pamene akuwira:

• sungani madzi pa kutentha kapena kutentha pang'ono kuti asatenthedwe
• gwiritsani ntchito poto lalikulu ndikusunga mazirawo mugawo limodzi
• zimitsani kutentha madzi akafika kutentha
• musalole mazira m'madzi kwa nthawi yayitali; Mphindi 10-12 ndizokwanira mazira apakati
• kuziziritsa mazira ndi madzi ozizira mwamsanga mutangophika kuti asiye mankhwala aliwonse omwe amachititsa kuti yolk ikhale yobiriwira

Chofunika ndi kuwonjezera kutentha kokwanira kuti dzira likhale lolimba, koma osati kwambiri kuti lisinthe.

Ndi mankhwala otani athunthu omwe amasintha dzira yolk kukhala yobiriwira ikapsa?

Njira zingapo zochititsa chidwi za biochemical zimachitika chitsulo chisanayambe kuchitapo kanthu ndi sulfure kutembenuza dzira yolk kukhala yobiriwira.

Tiyeni tidutse pa iwo pang'onopang'ono.

Iron mu Egg Yolk

Mkaka wa dzira la nkhuku uli ndi 2.7% ya ayironi, michere yofunika kwambiri kwa mwana wosabadwayo. 95% ya chitsulo imamangiriridwa ku phosvitin, mapuloteni omwe ali mu yolk ya dzira.

Pamene mluza uyamba kukula, mitsempha ya magazi imakula kukhala yolk kuti itenge zakudya.

Magazi amakhala ndi maselo ofiira a magazi omwe amagwiritsa ntchito ayironi kunyamula mpweya kupita kwa anapiye omwe akukula.

Mwanapiye amene sanabadwe kwenikweni akupuma mpweya wa oxygen mkati mwa dzira. Mpweyawu umabwera kudzera mu timabowo tating'ono ta dzira. Dzira la nkhuku lokhazikika lili ndi ma pores opitilira 7000 kuti mpweya udutse.

Sulfure mu Dzira Loyera

Tonse timadziwa sulfure chifukwa ndiye yekha amene amachititsa fungo loipa la mazira ovunda.

Dzira loyera limakhala mozungulira yolk ngati gawo loteteza lomwe limapha mabakiteriya omwe akubwera. Ndiwodzazidwa ndi madzi ndi mapuloteni. Kuposa theka la dzira loyera lili ndi mapuloteni ovalbumin, puloteni yomwe imakhala ndi magulu aulere a sulfhydryl okhala ndi sulfure.

Cysteine

Mapuloteni a mazira ndi unyolo wautali wa amino acid. Mafuta ambiri a sulfure m'mazira a nkhuku amapezeka mu amino acid methionine, kalambulabwalo wa amino acid cysteine.

Mwa anthu, cysteine ​​​​imagwira ntchito yofunika kwambiri pakugayidwa kwa mowa. Zinayamba kutchuka mu 2020 pomwe asayansi adapeza kuti cysteine ​​​​imatha kuchepetsa zizindikiro zokhudzana ndi mowa, monga nseru ndi mutu. Sulfur-container cysteine ​​​​m'mazira amachiritsa matenda otupa.

Kutenthetsa Mazira

Dzira likazizira, nembanemba ya vitelline imakhala chotchinga chomwe chimalepheretsa mankhwala omwe ali mu yolk kusiyana ndi dzira loyera. Koma mukayamba kuphika dzira, zinthu zingapo zamatsenga zimachitika.

Choyamba, kutentha kumapangitsa kuti mapuloteni omwe ali mu dzira laiwisi awoneke ndikupanga mgwirizano watsopano wina ndi mzake. Njira imeneyi imatchedwa denaturation ndipo n’chifukwa chake dzira limakhala lolimba mukaliwiritsa.

Chifukwa cha kusasunthika konse, sulfure imatulutsidwa kuchokera ku amino acid. Amayamba kupanga hydrogen sulfide, mpweya wonunkhiza ngati mazira owola. Ndife amwayi kuti ndi mpweya wochepa kwambiri, kapena sitingadye mazira, konse.

Tonse timadziwa zomwe zimachitika ndi soda ngati tisiya padzuwa kwa nthawi yayitali: mpweya umatha. Zomwezo zimachitika ndi hydrogen sulfide, imayesa kuthawa kuchokera ku dzira-loyera. Palibe malo ochulukirapo oti gasi apite, kotero amayesa kufalikira mu yolk ya dzira.

Mukatenthetsa dzira nthawi yayitali komanso kutentha kwambiri, mapuloteni ena amphamvu a phosvitin mu yolk amayamba kusweka kudzera mu hydrolysis. Phosvitin sangathe kugwira chitsulo, ndipo chitsulo chimatulutsidwa mu yolk.

Chitsulo chimachita ndi Sulfure

Chitsulo (Fe) chochokera ku yolk chimakumana ndi sulfure (S) kuchokera ku dzira loyera m'mphepete mwa yolk, pomwe nembanemba ya vitelline ikugwa. The mankhwala anachitaimapanga ferrous sulfide(FES).

Ferrous sulfide ndi chitsulo chakuda chakuda chomwe chimawoneka chobiriwira chikasakanizidwa ndi yolk yachikasu. Chotsatira chomaliza ndi kusinthika kobiriwira kwakuda komwe mumapeza mu dzira lophika molimba.

Magwero ena amati wobiriwira ndi ferric sulfide, koma ndi zinthu zosakhazikika zopanga zomwe sizichitika mwachilengedwe komanso zimawola mu ferrous sulfide.

Ndi zinthu ziti zomwe zimapangitsa kuti dzira la dzira likhale lobiriwira?

Chiwopsezo cha mtundu wotuwa wobiriwira wa dzira chimawonjezeka pamene:

• dzira limaphikidwa pa kutentha kwambiri
• dzira limatenthedwa kwa nthawi yayitali
• dzira amasungidwa kalekale asanaphike
• dzira yolk imakhala ndi pH-level yapamwamba
• mumaphika mazira muchitsulo chachitsulo

Ma pH a dzira amawonjezeka pamene dzira limakula. PH ikhoza kusinthira kuzinthu zamchere, ndi carbon dioxide kusiya dzira m'masiku ochepa. Izi zimawonjezera mwayi woti chitsulo cha yolk chigwirizane ndi sulufule wa dzira loyera.

Popeza chitsulo chimapangitsa dzira kukhala lobiriwira, ndi bwino kupewa kuwaphika mu skillet wachitsulo.

Mtundu wa nkhuku , kukula kwa dzira, mtundu wa dzira, ndi khalidwe la dzira sizimakhudza mtundu wobiriwira wa yolk.

Chidule

Kusanduka kotuwa kwa dzira la dzira m’mazira owiritsa kwambiri kumachitika chifukwa chophikira kwambiri. Kutentha kumapangitsa chitsulo mu dzira yolk kuchita ndi sulfure mu mazira azungu. Chotsatira chakuda cha ferrous sulfide chimawoneka chobiriwira pamwamba pa yolk yachikasu ya dzira.

Pofuna kupewa tinge wobiriwira, ndikofunikira kuteteza chitsulo mu yolk kuti chisatulutsidwe. Chepetsani kutentha kwa madzi ndikuwonetsetsa kuti dzira latenthedwa nthawi yayitali kuti likhale lolimba. Nthawi yomweyo muziziziritsa ndi madzi ozizira mukatha kuphika.