Ndingadzivirira sei zai kuti risaite green pakubika?

Kuti udzivise zai yolk kubva pakusvibira kana ichibika:

• chengeta mvura iri patembiricha iri kufashaira kana kuti iri pasi pematembiricha ekuvira kudzivirira kupisa
• shandisa pani huru uye chengeta mazai muchikamu chimwe chete
• dzima kupisa kana mvura yasvika pakupisa
• usarega mazai ari mumvura kwenguva yakareba; Maminitsi 10-12 anokwana mazai aripakati nepakati
• chill mazai nemvura inotonhora pakarepo mushure mekubika kuti umise chero maitiro emakemikari achishandura yolk green

Chinokosha ndechekuwedzera kupisa kwakakwana kuita kuti zai riome, asi kwete zvakanyanya zvekuti rinoshanduka girini.

Ndeipi iyo yakazara kemikari process inoshandura zai yolk green kana yanyanya kubika?

Zviviri zvinofadza zvebiochemical process zvinoitika simbi isati yaita nesarufa kuti ishandure zai yolk girini.

Ngatiende pamusoro pavo nhanho nhanho.

Iron muZai Yolk

Zai rezai rehuku rine 2.7% ye iron, chikafu chakakosha pa "embryo". 95% yesimbi inosungirirwa kune phosvitin, puroteni iri muzai yolk.

Kana "embryo" inotanga kukura, tsinga dzeropa dzinokura kuita yolk kuti dzitore chikafu.

Ropa rine masero matsvuku eropa anoshandisa iron kutakura oxygen kumwana ari kukura.

Mwana asati azvarwa ari kufema mweya weokisijeni mukati mezai. Okisijeni iri kuuya netumaburi tudiki mugoko rezai. Zai rehuku rehuku rine maburi anodarika 7000 kuti oxygen ipfuure.

Sulfur muEgg White

Tese tinoziva sarufa sezvo iriyo yega inokonzera kunhuwa kwemazai akaora.

Zai jena rinogara rakatenderedza yolk sechidziviriro chinouraya utachiona hunouya. Izere nemvura uye mapuroteni. Inopfuura hafu yezai jena ine protein ovalbumin, puroteni ine emahara sulfhydryl mapoka ane sulfur.

Cysteine

Mapuroteni ezai iketani refu dzeamino acids. Yakawanda yesarufa mumazai ehuku inowanikwa mune yakakosha amino acid methionine, inotangira amino acid cysteine.

Muvanhu, cysteine ​​​​inobata basa rinokosha mukugaya doro. Yakave yakakurumbira muna 2020 apo masayendisiti akawana kuti cysteine ​​​​yaikwanisa kuderedza zviratidzo zvine chekuita nedoro, sekusvotwa uye kutemwa nemusoro. Iyo sulfur-ine cysteine ​​​​mumazai inorapa hangover.

Kupisa Zai

Kana zai richitonhora, vitelline membrane imhinganidzo inochengeta makemikari ari mujoko akaparadzana nezai jena. Asi paunotanga kubika zai, zvinhu zviviri zvemashiripiti zvinoitika.

Chokutanga pane zvose, kupisa kunoita kuti mapuroteni ari muzai mbishi avhure uye agadzire zvisungo zvitsva nemumwe. Izvi zvinodaidzwa kuti denaturation uye ndicho chikonzero chinoita kuti zai riome kana warifashaidza.

Nekuda kwezvese kusarukwa, sarufa inoburitswa kubva kumaamino acids. Inotanga kuita hydrogen sulfide, gasi rinonhuwa semazai akaora. Isu tine rombo rakanaka kuti idiki shoma regesi, kana isu tingadai tisiri kudya mazai, zvachose.

Isu tose tinoziva zvinoitika nesoda kana tikaisiya muzuva kwenguva yakareba: gasi rinopukunyuka. Zvimwechete zvinoitika nehydrogen sulfide, inoedza kutiza kubva muzai-chena. Iko hakuna nzvimbo dzakawandisa dzekuti gasi riende, saka rinoedza kupararira muzai yolk.

Paunenge uchipisa zai kwenguva yakareba uye pakupisa kwakanyanya, iyo imwe yakasimba phosvitin mapuroteni ari muyolk anotanga kuputsa kuburikidza nehydrolysis. Iyo phosvitin haigoni kubatirira kune simbi, uye simbi inosunungurwa mu yolk.

Simbi inobatana neSulfur

Simbi (Fe) kubva pajoko inosangana nesarufa (S) kubva muzai jena pamucheto wejoka, uko vitelline membrane iri kudonha. The chemical reactioninogadzira ferrous sulfide(FES).

Ferrous sulfide isimbi ine ruvara rwakasvibira sulfide inotaridzika yakasvibira kana yakasanganiswa neyero yolk. Mhedzisiro yekupedzisira ndeye greenish-black discoloration yaunowana muzai rakaoma-rakabikwa.

Mamwe magwaro anoti green is ferric sulfide, asi icho chinhu chisina kugadzikana chakagadzirwa chisingaitiki muzvisikwa uye chinoora muferrous sulfide.

Ndezvipi zvinhu zvinowedzera njodzi yezai yolk kushanduka girini?

Ngozi yekubuda kwegrey-girini yezai yolk inowedzera kana:

• zai rinobikwa nekupisa kwakanyanya
• zai rinopisa kwenguva refu
• zai rinochengetwa nguva refu risati rabikwa
• iyo yai yolk ine yakakwira pH-mazinga
• unobika mazai mupani yesimbi

Iyo pH mazinga ezai anowedzera kana zai rakura. Iyo pH inogona kuchinjika kune alkaline kukosha, nekabhoni dhaibhoni ichisiya zai mumazuva mashoma. Izvi zvinowedzera njodzi yokuti iron yejoko inopindirana nesarufa chena yezai.

Sezvo simbi iri kushandura zai rakasvibirira, zviri nani kuti urege kuvabikira mune yakakandwa iron skillet.

Rudzi rwehuku, saizi yezai, ruvara rwezai, uye hunhu hwezai hazvikanganise kubuda kwegirinhi kweiyo yolk.

Summary

Kusviba-kusvibirira kwezai yolk mumazai akaoma-akabikwa kunokonzerwa nekunyanya kubika. Kupisa kunoita kuti simbi iri muzai rezai riite nesarufa iri muchena zai. Iyo inoguma yakasviba ferrous sulfide inotaridzika yakasvibira pamusoro peyero zai yolk.

Kuti udzivise tinge yakasvibirira, ndiyo kiyi yekudzivirira simbi mu yolk kubva pakusunungurwa. Dzikisa tembiricha yemvura uye ona kuti zai rinodziya chete kwenguva yakareba kuti riome. Pakarepo itonhore nemvura inotonhora wapedza kubika.