Asidi yobisi; yintoni na, ukuze ubone indlela into ebonisa

ubisi lwenkomo - yenye yezona mveliso kakhulu luncedo kubantu abadala kunye nabantwana ngokufanayo. Iqulethe inani elikhulu yeekhomponenti ezifunwa ngumzimba. A amacandelo ezifana protein, iswekile kunye namafutha sebenzi kakuhle emzimbeni womntu. Amanqanaba aphezulu kwiproteni elubisini, ngoko ke malunga noku ngakumbi. Ngoko ke, ukwanda amanqanaba leeprothini - lo ngumsebenzi obalulekileyo kakhulu ixesha elide nelityayo ixesha. Kumazwe aphuhlileyo, isiqingatha iindleko imveliso ixhomekeke ngqo kwi-protein. Ukuza kuthi ga ngoku, abenzi lobisi neemveliso zobisi kufuneka ibe kukuqinisekisa ukuba iimazi zigcinwa iimeko ezilungileyo banikwa ukutya zizityebi iivithamini.

Kwakhona kubalulekile kakhulu ukuba ulawulo asidi, njengoko kwimeko prokisaniya imveliso, waba ungafanelekanga ezithengiswayo kubathengi.

Yintoni egqibayo asidi yobisi?

Le khemikhali Ukwakhiwa ubisi kuxhomekeke kwizinto ezininzi. It iphenjelelwa kweemeko yamabanjwa lesi silwanyana, imeko yakhe nokomzimba nangaphezulu. Inkqubo ukubunjwa yobisi kunokuba nzima, nto leyo kulindeleke ukuba imeko engqongileyo yokuhlala yezilwanyana. On nokubunjwa kwayo kunye secretion we computeryomndilili osetyenzisiweyo-10% yazo zonke izondlo, apho ifika ibe ingaba mammary ligazi. Ngoko ke, ukuba ilitha enye ubisi lwenkomo kuyimfuneko ukuze ngalo ingaba mammary lalimalunga namakhulu amahlanu iilitha igazi. iimpahla zazo atshintsha rhoqo, ngokuqala mzuzu kufuneka ukuze de ifikelela ekupheleni abathengi. Ubisi yahluke kakhulu kumafa. Ngoko, kwi umthubi iqulethe iproteni amabini ekhulwini ngaphezu eziqhelekileyo, nto leyo kakhulu luncedo. Ubisi olu kumafa yayo iqulethe isixa esikhulu izondlo kunye neetyuwa. Nje umthubi iqulethe magciwane ubuncinane inani inegwele, evumela ukuba uhlale entsha elide kangangoko kunokwenzeka.

degree asidi

Ngexesha yokugcina, ubisi olufakiweyo lwabiliswa sisenzo ezincinane ezikhula kulo ubola lactose, ngenxa ukuba ukuyilwa lactic acid kunye nokwanda ubumuncu inqanaba kwayo kubonakaliswa ° Turner (T).

ubisi isengwa nje unezinga asidi 16-18 T. Kodwa ukongeza kula manani, luphawu ebalulekileyo njengesikhuseli. Awona macandelo yobisi abakhoyo, ngalo akawatshintshi loo pH ngokuthi kongezwe asidi kunye alkalies. Umthamo kumthamo ephakamileyo, kokukhona wezenzi ifunelwa utshintsho pH. landa nje asidi ubisi uyaqapheleka iimazi ezitya ehlotyeni emakriweni okanye amasimi apho okuziinkozo ezilinywa. Oku kubangelwa yinto yokuba ubume kwengca kunye nokutya okuziinkozo zehla calcium. Izazinzulu ziye kudala kwasekwa phakathi isiqulatho calcium yobisi kunye zobisi iintsholongwane. It phendla ukuba ezincinane le calcium elubisini, kungona iasidi yayo. Ngako oko, ngokwandisa isiqulatho ikhalsiyam yokudla, isalathiso iasidi kunciphisa.

A isixhobo sokubala iasidi

Ukuze ubone asidi yobisi, amafama kunye nabanye abavelisi basebenzisa isixhobo eyenzelwe ngokukhethekileyo ekuthiwa pH-manzi. Ngokutsho kwisixhobo ekuqaleni Walinganisa EMF (amandla electromotive) kwinkqubo yekhompyutha. Emva koko isebe kulinganiswa lobushushu imveliso yobisi. Kule ixabiso le-pH, nto leyo imiselwe ku-20 amaqo., Umiselwa ifomula ekhethekileyo eyenziwe.

-PH imitha ukulinganisa ubumuncu libhekisela yobisi kunye nokutya shishino. Ingasetyenziswa ukulinganisa asidi yobisi kunye neemveliso zobisi.

Le ndlela yokumisela ubumuncu le ubisi namhlanje ingqalelo kakhulu echanekileyo.

Isiphumo imitha pH

Ukuqinisekisa inqanaba yobisi mikroogranizmov asidi, okanye nasiphi na esinye isixhobo isivamvo imveliso yobisi egxile, eliquka yokulinganisa lobushushu electrode kunye electrode yesilivere chloride reference. Ngoku, ngokusebenzisa inguqu pH amandla electromotive ezimisele leyo senzeka kwimveliso kunye kwithempritsha yayo.

izibalo Eminye zisekelwe phezu ifomula.

Yintoni asidi titratable?

Le asidi imveliso ihlelwa iyasebenza titrated.

Ukuze ubone indlela yesibini kuyimfuneko ukusebenzisa titration kwealkali. Ngokubanzi, kukho imichiza entsonkothileyo, apho ziya kumiselwa iasidi titratable elubisini. izinga ngaphezu 16-18 Titratable ubumuncu T. umthubi 5-6 T ngaphezulu ubisi rhoqo. Oku kuba eziphakamileyo kakhulu umgangatho kweziyi serum. Xa sijonga ubisi izilwanyana ezigulayo okanye omdala kuyimfuneko, echasene ubumuncu zabo 5-8 T uya kuba ngaphantsi ngobisi kwizilwanyana esempilweni. Isalathisi ezinjalo ezinxulumene ubukho neetyuwa - kloride. Kwakhona kwi asidi titratable, kwakunye esebenzayo, baphenjelelwa ngamandla ziimeko apho isilwanyana uqulathwe, imfuza zaso, ukutya, uhlobo kunye nesimo sempilo. Umzekelo, kwimeko kwi feed uya kuswela iityuwa titratable asidi yobisi kuya kuba 23-24 T. Kula manani imveliso ubethwa a muncu ngokukhawuleza.

Largest titratable asidi neenkqubo zokuvelisa elawulwa ubisi kuphela, kodwa zonke iimveliso zobisi wabadluli le acid Ukubila acidosis.

izinga lomgangatho

ERashiya, ubeka iimfuno ekufuneka kuhlangatyezwane nazo ubisi. GOST 31450-2013 - umgangatho esemgangathweni usebenza ukusela ubisi, zipakishwe kwiipakethe kwabathengi emva unyango ubushushu. Ngokungqinelana neemfuno, imveliso kufuneka lingaqulathi kukubola zazikhona amaqhuma ngamanqatha. Ngokuhambelana ne GOST, ubisi kufuneka ube umbala omhlophe iyunifomu bamantshontsho - kwimveliso fat-free, kunye cream nokukhanya - kuba kwiindawo cream umthunzi kunye ukufudumeza. Kungasisalathisi esibalulekileyo sokuba umgangatho ukungabikho ziziqhumiso nendaba, kwakunye neencasa.

Ngokutsho iimpawu yalo encedayo ubisi buyisela inani elikhulu iimveliso, kodwa hayi enye imveliso akukho indawo ubisi. Ukudibanisa amafutha, iiprothini kunye carbohydrate, nto leyo abakulo umlinganiselo elungeleleneyo kuso, kwi calcium ubisi ukho nto leyo ngokulula zifunxwe ngumzimba.