Cov khoom noj khoom haus niaj hnub muaj peev xwm mus nrawm rau qee yam kev mob uas yuav luag tau ntev ntev. Qhov no tau ua tsaug rau cov khoom tshwj xeeb hu ua preservatives, uas tam sim no ntxiv rau yuav luag tag nrho cov khoom ntawm cov zaub mov ua lag luam. Txawm li cas los xij, muaj qee yam khoom ntawm cov khoom uas tsis kam muab sib xyaw nrog preservatives thiab lawv cov txee lub neej tshua heev. Tsab xov xwm no tsom rau ib qho ntawm cov khoom no - cov mis nyuj, thiab cov txheej txheem uas tshwm sim nrog nws vim tsis muaj peev xwm nthuav tawm rau qhov zoo ntawm kev txuag - folding.
Dab tsi yog coagulated mis nyuj haus
Rau qhov kev nkag siab zoo ntawm cov txheej txheem ua rau folding ntawm mis nyuj, koj yuav tsum xub nrog qhov teeb meem ntawm lub cuab yeej ntawm cov protein molecules, uas tsim nyob rau hauv lub ntsiab loj feem ntau ntawm cov organoleptic zoo ntawm cov khoom no.
Nrhiav kom paub seb dab tsi nyuj lub mis yog tsim los ntawm, nws yog ib qho tseem ceeb, nws ua tiav li cas, nws txawv ntawm cov kua mis li cas.
Cov proteins uas peb lub ntsiab hauv cov khoom siv mis nyuj yog lactoglobulin, lactalbumin thiab casein. Zoo li cov lwg me me ntawm lwm cov protein, nyob hauv lawv cov qauv lawv zoo li cov saw hlau khov.
Muaj ob txoj hauv kev uas ua rau muaj kev hloov hauv cov khoom thaj chaw ntawm cov protein - denaturation thiab kev puas tsuaj. Nyob rau hauv cov ntaub ntawv no, denaturation precedes thiab facilitates cov txheej txheem ntxiv ntawm kev puas tsuaj.
Thaum lub sij hawm denaturation protein hloov nws cov cim ntsuas. Nws hloov nws lub qab, tsw, tsos nqaij daim tawv, nws tuaj yeem pib los qhia tias nws muaj peev xwm sib txawv li cas, tab sis nws tus qauv ntawm nws lub plhom tseem tsis hloov.
Thaum lub sijhawm kev puas tsuaj qhov kev rhuav tshem ntawm kev niaj zaus qauv ntawm cov khoom muaj muaj tshwm sim, ua rau kev tsim ntawm txhua yam tshuaj tshiab hauv cov qauv. Tus txheej txheem ntawm denaturation yog thim rov qab rau qee qhov kev tshwm sim, thaum kev puas tsuaj yog qhov kawg thiab tsis muaj txoj sia.
Koj puas paub? Cov mis nyuj ua los ntawm cov poj niam ua ke thiab cov whales ua rau ntau tshaj roj (45-50%), thaum lub caij daus thiab cov nees muab mis tsawg tshaj (1-1.5%).Yog tias peb hloov tag nrho cov ntaub ntawv saum toj no rau cov rooj plaub hauv kev saib xyuas, nws hloov tawm tias cov mis nyuj ua rau denaturation yog cov khoom noj khoom haus, thiab cov mis nyuj yog ib yam khoom uas muaj protein ntau dhau los ntawm txoj kev puas tsuaj.
Ntawm nws cov khoom nruab nrog cev nws yog ib cov kua muaj ntau ntau theem. Qhov qaum, uas yog ntau cov kua thiab pob tshab, nws yog hu ua whey: nws yog dej thiab ib qho me me ntawm cov proteins uas khaws lub qauv qauv. Cov txheej txheem hauv qab no yog tuab ntom thiab tuab - cov no yog cov neeg amino acids, zoo li cov rog thiab carbohydrates. 
Ntawm qhov kub kub nws puas tawm
Rau feem ntau, qhov txheej txheem ntawm kev puas tsuaj ntawm cov protein molecules, tshwj xeeb tshaj yog cov uas twb pib poob lawv cov khoom vaj tse, yuav raug kev cuam tshuam los ntawm yuav luag txhua yam catalyst ntawm ib hom tshuaj los yog lub cev.
Piv txwv li, yog hais tias koj poob vinegar los yog citric acid nyob rau hauv cov mis nyuj, nws kuj pib curl. Txawm li cas los xij, txoj kev coj noj coj ua thiab kev mob siab tshaj plaws ntawm kev ua kom muaj kab mob nyob hauv ib qho khoom yog kom sov nws.
Koj puas paub? Xyoo, thoob plaws lub ntiaj teb, cov nyuj nyug tsim qhov nruab nrab ntawm 400 lab tons ntawm mis.Qhov kub yuav tsum pib thiab ua kom tiav qhov txheej txheem ntawm qhov degradation protein txawv nws nyob ntawm seb muaj ntau yam tsis. Piv txwv, nyob rau hauv cov degree ntawm denaturation, quantitative indicators of protein nyob rau hauv thawj kua, qhov muaj los yog tsis muaj lwm yam tshuaj impurities (feem ntau preservatives) nyob rau hauv cov khoom, thiab ntau lwm tus. Txawm li cas los, kev xyaum qhia tau hais tias qhov nruab nrab, ntawm qhov kub ntawm + 95-100 ° C, cov mis coagulates hauv 30-40 feeb.
Mis nyuj haus tau curl yog hais tias koj poob nws nrog citric acid los yog vinegar.Nws tseem ua tau rau koj cov khoom siv mis nyuj ua yuav raug txiav rau ntawm qhov kub zoo (ntawm +50 ° C), tiam sis qhov no nws yuav tsum ua kom cov protein nyob rau hauv nws yog ib theem ntawm denaturation. Tsis tas li ntawd, cov kua qoob loo ntawm cov khoom siv mis nyuj ua rau lawv cov qauv qub thiab ua rau muaj qhov tsis tshua muaj neeg tsis txias (ntawm -60 ° C).
Tshawb kom paub tias yog dab tsi colostrum thiab kefir fungus.
Mis coagulated by boiling
Nws feem ntau tshwm sim los ntawm cov mis nyuj yuav nyob rau hauv ib lub khw los yog hauv lub khw yog cov kev kho mob thaum lub caij sov. Txawm li cas los xij, tsis txhob maj muab pov tseg qhov khoom, vim tias, txawm tias nws tsis pom thiab tsis zoo, nws tseem ua tau zoo rau hauv koj chav ua noj.
Hauv qab no peb tham txog lub ntsiab lus tseem ceeb rau kev haus cov mis nyuj khov mis thaum lub caij ua haujlwm, thiab cov hau kev rau nws daim ntawv thov.
Vim li cas
Lub ntsiab yog vim li cas rau qhov tseeb tias cov khoom muaj protein, nrog rau cov mis, hloov lawv tus qauv dhau lub sij hawm, yog lub ntsiab ntawm cov tshuaj protein molecules. Los ntawm lawv cov yeeb tshuaj, tsis zoo li cov rog los yog carbohydrates, lawv tsis tuaj yeem khaws lawv cov khoom vaj tse rau ib lub sijhawm ntev. 
Thiab txheej txheem ntawm raising qhov kub ntawm lub cheeb tsam nyob rau hauv uas lawv muaj nyob tsuas accelerates lub natural yam ntawm yam. Txawm li cas los xij, muaj ntau qhov laj thawj vim tias qhov txheej txheem folding tshwm sim ntawm qhov kub qis dua los yog nyob rau lub sij hawm luv luv uas raug kub siab.
Nws tseem ceeb heev! Yog tias koj xav kom tiv thaiv cov txheej txheem ntawm dov lub mis thaum nws khib nyiab, peb xav kom koj saib xyuas cov txheej txheem thiaj li cuam tshuam nws raws nraim thaum lub caij pib thaum nws pib rhaub.
Cov no yog vim li cas:
- koj cov khoom siv mis nyuj yog twb acidified lawm, uas yog, txheej txheem ntawm denaturation twb pib nyob rau hauv nws (qee zaus nws muaj txaus npaum li ntawm ib qho kev kawm ntawm denaturation uas nws tsis tuaj yeem kuaj tau los ntawm tib neeg txoj kev xav);
- koj tau txais cov mis nyuj tov los ntawm kev sib txawv yields, ib qho ntawm cov uas twb tau pib mus rau kev npau suav;
- tus nyuj uas tau muab cov mis nyuj koj yuav tau muab zais mastitis los yog lwm yam kab mob;
- mis nyuj tsis tau muaj kev sib tw txaus;
- Catalysts (cov tshuaj uas pauv cov nqi ntawm cov kev muaj tshuaj lom neeg), piv txwv, dej qab zib, vinegar lossis citric acid, muaj nyob hauv koj cov khoom.
Yuav ua li cas koj thiaj ua tau tawm ntawm nws
Qhov zoo tshaj plaws zaub mov uas tau muab los ntawm lub hauv qab, ntom txheej ntawm coagulated mis nyuj yog tsev cheese. Rau nws kev npaj, nws yog qhov yuav tsum tau khaws cov pawg uas tau sau rau hauv qab ntawm lub khob nrog rau cov khoom, thiab tom qab ntawd, muab tso ua ntej hauv qhov ncauj los yog lwm daim ntaub uas muaj cov xov tooj kom txaus, rau nws ntxiv kom nruj (piv txwv, siv ib lub cib los sis lwm qhov saum toj).
Cov npluag loj kuj siv tau ua ib lub hauv paus rau kev npaj ntau yam nyuaj cov cheese, tab sis cov txheej txheem no yog cuam tshuam nrog ntau ntau cov teeb meem kev tsim kho, vim li ntawd nws tsis yog li yooj yim los npaj nws nyob hauv tsev.
Nrhiav seb vim li cas mis nyuj qab ntsev, muaj ntshav hauv cov mis nyuj, cov mis muaj ntxhiab tsw.Ntshav, ntau txheej thiab cov kua dej coagulated, feem ntau yog siv los ua ib qho khoom noj rau ntau hom qhiav cij - charlotte, pancakes, fritters, pies, thiab lwm yam. vim nws suab tsis muaj ntau yam rog thiab mis nyuj carbohydrates, uas tiv thaiv kom tsis txhob saj lwm yam ci cov khoom xyaw los ntawm kev tsim tawm.
Tsis tas li ntawd, yog hauv tsev yogurts, kefir thiab cov khoom noj siv mis nyuj yog tau los ntawm ib txheej txheej ntawm cov khoom noj khoom haus coagulated. Rau lawv cov kev npaj, nws yog ib qho tsim nyog ntxiv rau cov lactic acid pib rau qhov qis qis ntawm koj cov khoom, uas yog tsim los ua kom muaj tus kab mob lactobacilli uas muaj nyob hauv pawg thiab txhawb lawv txoj kev ua si. Ntsuas yog qee zaus kuj tau siv los npaj cov dej qab zib siv tshuaj ntsuab thiab dej ua dej, xws li airan.
Yees duab: ua li cas thaum folding mis nyuj hauv porridge
Nws tseem ceeb heev! Yog tias koj npaj siab yuav kom tau cov mis nyuj uas muaj lub hom phiaj rau lub hom phiaj, ces nws tsis yog qhov yuav tsum tau mus rhaub nws - cia li poob ob peb tee ntawm citric acid hauv ib lub taub ntim nrog ib yam khoom tshiab.
Vim li cas cov mis nyoj tsis tuaj yeem ua thaum noj cov cheese
Nyob hauv tus txheej txheem ntawm kev ua hauv tsev cheese los yog tsev cheese, qee zaus muaj teeb meem tshwm sim thaum cov khoom siv mis nyuj uas koj tau yuav tsis xav kom muab ntxhuav. Tus mob no feem ntau yog tus cwj pwm ntawm cov kua mis.
Cov lus piav qhia muaj peev xwm pom ntau yam kev piav qhia, ib daim ntawv teev npe ntawm qhov yuav zoo tshaj plaws uas peb muab ntxiv:
- Koj tau noj cov mis uas muaj protein ntau tsawg. Tej zaum nws yuav raug muab dej los ua ke.
- Cov mis nyuj uas koj muas yog nyob hauv qaug qis txias, vim tias nws cov protein molecules underwent kev puas tsuaj thaum tswj lawv cov khoom vaj khoom tsev sab nraud.
- Cov khoom noj tshiab tsis zoo heev vim yog tsis txaus los ua ntej-denaturation.
- Koj tau muas rau koj xav tau ib yam khoom uas muaj qib siab ntawm pasteurization, uas yuav luag tag nrho cov kev kuaj pom muaj ntau hom kab mob hauv nws, thiab ua li no qhov kev loj hlob ntawm cov txheej txheem ua ntej ntawm denaturation, uas tswj cov kev folding tom.
- Cov mis nyuj uas koj tau muab yog pasteurized ntawm siab siab los yog kub, uas cuam tshuam cov qauv ntawm cov roj ntsha ntawm cov khoom noj thaum tuav nws cov khoom sab nrauv thiab txo qhov yuav ua rau ntxiv folding.
- Koj tseem tabtom ua cheese ua hauv thaj chaw tsis zoo. Piv txwv, tsis txhob coj qhov kub thiab txias mus rau qhov yuav tsum tau kos, tsis txhob siv cov khoom pov thawj txaus rau kev puas tsuaj, sim ua kom tiav cov txheej txheem folding hauv lub thawv tsis ncaj (txhuas lub thawv, cov hlau tsis xeb hlau).
Vim li cas tsis qaub mis nyuj yuav hauv khw: video
Yuav ua li cas ntxiv rau mis nyuj, yog li nws curled, tsis qaub
Raws li twb tau hais lawm, nws tau ua tiav qhov pib ntawm txoj kev puas tsuaj ntawm mis nyuj protein ntau hauv molecules tsis tau siv kev kub siab, tsuas yog nrog kev pab los ntawm lwm yam catalysts, feem ntau ntawm cov tshuaj muaj yees.
Lwm txoj kev ua kom muaj cov txiv hmab txiv ntoo uas muaj coagulated yog siv kev kub siab rau lub sij hawm luv luv, nrog rau kev tos ntev ntev, thaum kev puas tsuaj yuav tshwm sim los ntawm lub natural process of denaturation.
Ntawm cov tshuaj feem ntau siv los muab cov khoom siv roj coagulated, nws yog ib qhov tsim nyog los faib feem citric acid thiab leaven. Ob qho tib si ntawm cov tshuaj yeeb dej caw no zoo rau hauv qhov lawv xyaum ua tsis zoo rau kev saj, ntxhiab tsw thiab xim ntawm cov khoom tau tom qab lawv siv.
Kawm txog cov roj rog thiab qhov ceev ntawm mis, qhov txhais ntawm cov dej hauv cov mis.Cov kua qaub, kua txiv hmab txiv ntoo thiab lwm yam acids thiab alkalis tuaj yeem muab ntxiv rau cov mis nyuj, tab sis cov khoom tau tom qab lawv siv yuav muaj cov khoom vaj khoom tsev me ntsis.
Yog li, peb cia siab tias peb tsab xov xwm tau pab koj teb tag nrho cov lus nug txog cov co cov ntshav. Ntau cov kws txawj noj khoom haus thoob plaws ntiaj teb tau siv cov khoom no hauv lawv chav ua mov, ua tiav cov kev xav tau tiag tiag.
Xyuas
Kuv tau hloov pesticide los ntawm lub sijhawm dhau ib zaug, Kuv tsis tau hloov mis nyuj mis, Kuv siv nws los ntawm tej kas tham, hauv tsev ua thiab hauv cov hnab yas, kuv sim tsis noj nws hauv tetrapack, nws yog pasteurized, uas txhais tau hais tias "tuag lawm."
