Kua mis nyeem qaub yog khoom noj rau txhua tus neeg. Qee lub sij hawm tib neeg suav tias yog haus cawv. Yogurt yog nplua nuj nyob hauv cov ntsiab lus muaj txiaj ntsig zoo, thiab muaj txiaj ntsig kev noj haus ntau dua, yog li tib neeg feem ntau haus yogurt. Qee zaum koj yuav pom tias cov kua mis nyeem qaub ntawm chav sov yog poob ntsej muag, nws puas lawm? Hnub no kuv yuav qhia koj qhov laj thawj, thiab qhia koj yuav ua li cas thiaj paub qhov txawv ntawm qhov zoo ntawm yogurt.
Vim li cas cov kua mis nyeem qaub?
Kev tsim cov mis nyuj yuav tsum tau pretreated los ntawm homogenization thiab kom tsis muaj menyuam, thiab ntxiv txog 7% ntawm sucrose, thiab tom qab ntawd inoculating qhov tshwj xeeb cov kab mob lactic acid uas tau cog qoob loo ntawm qhov kub txog 42 degrees Celsius. Cov kab mob Lactic acid sib npaug los ntawm cov khoom noj mis nyuj thiab tsim tawm lactic kua qaub thiab cov tshuaj tsw qab. Cov protein hauv cov mis muaj cov cuab yeej ua kom muaj zog hauv cov kua qaub thiab maj mam dhau los ua qhov zoo thiab muag heev thiab tsis yooj yim hws nyob rau hauv qhov kev txiav txim ntawm cov kab mob lactic acid.
Thaum cov kua qaub raug cai, cov kua mis nyeem qaub raug xa mus rau 4 degrees Celsius, thiab kev ua haujlwm ntawm cov kab mob lactic acid nres. Cov kua mis uas tau muag ncaj qha rau lub sijhawm no hu ua khov khov khov. Cov kua mis nyeem qaub tau maj mam ua kom maj nrawm kom tau txais cov khoom siv mis nyuj khov ib yam khoom uas tsis sib xws, uas yog sib tov yogurt. Kev qeeb qeeb tsis ua kom puas cov protein colloid, yog li cov khoom lag luam zoo thiab muaj qhov sib xws. Yog tias nws tau nrawm nrawm, nws yuav rhuav tshem cov protein colloid thiab ua rau cov khoom nyias nyias. Cov kua mis nyeem qaub uas ua nrog mis nyuj ntshiab tsis yog khov heev thiab tseem muaj qee yam kua.
Qee cov khoom siv mis nyuj thiab mis hmoov ua raw khoom, thiab cov protein ntau hauv cov khoom yog siab dua thiab khov dua. Txhawm rau txhawm rau ua kom muaj qhov sib xws ntawm cov kua mis nyeem qaub, muaj ntau yam thickeners xws li gelatin lossis kev noj haus fiber ntau tej zaum yuav muab ntxiv rau qhov kev npaj. Nkaws yog protein colloid, uas yog lub hauv paus tseem ceeb ntawm cov nqaij jelly, uas tuaj yeem zom thiab nqus tau los ntawm lub cev. Cov zaub mov muaj fiber ntau suav nrog seaweed gum, pectin, cog cov pos hniav, cellulose derivatives, thiab cov zoo li. Lawv tsis ua mob rau tib neeg lub cev, tsis muaj cua sov, thiab tseem tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev noj haus fiber ntau.
Vim li cas cov kua mis nyeem qaub ntawm chav sov?
Thaum cov kua mis nyeem qaub tau sib tov ntawm chav sov, cov txheej txheem reticular tsim sab hauv thawj cov kua mis nyeem qaub raug rhuav tshem, ua rau cov whey los nag, kom cov kua mis nyeem qaub dhau los.
Dab tsi yog cov kua mis tsis zoo?
Saib ntawm ntim:
Ua ntej tshaj, txheeb xyuas cov ntim khoom noj kom pom tias lub txee lub neej tas sijhawm lossis ze rau lub txee lub neej. Tom qab ntawd, xyuas cov duab ntawm pob. Cov kua mis tsis zoo yuav tsim cov pa ntau vim yog cov khoom sib xyaw sab hauv. Yog tias koj pom lub pob tau tawg, nws txhais tau tias cov kua mis tsis zoo, tsis txhob haus nws. Thaum kawg, khij lub ntim sab nrauv.
Saib ntawm cia ib puag ncig:
Txheeb xyuas cov xwm txheej khaws cov kua mis nyeem qaub. Yoghurt yooj yim heev rau zom, tshwj xeeb tshaj yog thaum lub caij ntuj sov. Yoghurt yuav tsum muab cia rau hauv lub tub yees lossis lub tub yees txias nruab nrab ntawm 2 thiab 6 ° C. Koj yuav tsum tau ceev faj thaum tso cov kua mis nyeem qaub ntawm chav sov. Txheeb xyuas lub txee lub neej feem ntau, lub txee lub neej ntawm yogurt yog 3 txog 5 hnub.
Saib tus yam ntxwv:
Qhov qub khov yogurt yog txawm tias, muag heev, xim tsis sib xws, tsis nthuav tawm cov npuas, thiab tej zaum yuav muaj me me ntawm whey (cov kua ntshiab) rau ntawm qhov chaw; Qee cov kua mis tsis zoo tsis ua rau lub hauv paus tawg, tab sis nyob hauv lub xeev ua kua, tshwj xeeb yog txheej txheej dej saum npoo av. Qee tus muaj npuas, thiab xim yuav tsaus dua lossis ntsuab dua. (Nco tseg: Vim yog cov khoom sib txawv ntxiv hauv cov kua mis sib xyaw xws li cov kua txiv hmab txiv ntoo uas twb muaj lawm, cov xim sib txawv yuav tshwm sim, yog li koj yuav tsum tau xyuam xim rau nws).
tsis hnov tsw:
Cov kua mis ib txwm muaj cov ntxhiab tsw ntxhiab thiab ntxhiab tsw qab; thaum cov kua mis tsis zoo muaj cov kua qaub los yog muaj cov tsw tsw tsw qab nrog cawv cawv, yog li nws txawv ntawm qhov hnov tsw. Nws yog txoj hauv kev zoo tshaj plaws kom hnov ntxhiab los ntawm qhov chaw uas ntim lub raj mis, nws pom tseeb dua.
saj:
Koj tuaj yeem saj nws yog tias koj tsis tuaj yeem paub qhov txawv ntawm qhov hnov tsw. Deteriorated yogurt yuav dhau los ua qab, saj thiab kev ntxhib los mos yuav tsis du, yog tias koj ib txwm haus yogurt, koj yuav hnov qhov txawv.