Gukora irangi rya kazeyine riva ku mata n’ishwagara — Irangi rya kera ry’inkuta rishingiye kuri poroteyine

Shyushya litiro 1 y’amata yakuweho amavuta kugeza kuri 40°C hafi (ntubiteke). Ongeramo ml 60 z’umushari wera maze uvange buhoro. Amata azakamuka mu minota mike — poroteyine ya kazeyine igwa nk’amavuta y’amata yera, igasiga amazi y’umuhondo-icyatsi (whey). Reka uruvange ruhagarare iminota 15-30 kugira ngo gukamuka kurangire. Koresha amata yakuweho amavuta, si amata yuzuye — amavuta ari mu mata yuzuye abangamira gufatana kandi atuma irangi ritaramba.

Suka amata yakamutse unyuze mu kayunguruzo gafite imyobo mito cyangwa mu gitambaro cya muslin kugira ngo utandukanye amavuta y’amata n’amazi yayo. Kanda buhoro amavuta y’amata ukuremo amazi uko ushoboye — ubuhehere burenze bwaca intege irangi. Amavuta y’amata agomba kuba ikintu cyera gikomeye kimeneka. Jugunya amazi (cyangwa uyakoreshe mu murima — ni ifumbire yoroheje). Kuri litiro 1 y’amata yakuweho amavuta, tegereza hafi g 100-150 z’amavuta y’amata atose. Amavuta y’amata agomba gukoreshwa ari mashya — mu masaha 24.

Shyira amavuta y’amata yakanzwe mu gikombe cyo kuvangiramo. Ongeramo g 15-20 z’ishwagara yazimye (hidorokiside ya kalisiyumu) maze uvange neza. Ishwagara ishongesha poroteyine ya kazeyine ikayihindura kazeyinate ya kalisiyumu — uruvange rworoshye rumeze nka kirimu rufite imbaraga zikomeye zo gufatanya. Vanga cyane iminota 5. Uruvange rugomba koroha no kubengerana gato. Niba rubyimbye cyane, ongeramo amazi make. Impumuro y’ishwagara ni ibisanzwe kandi izashira uko irangi ryuma. Wambare uturindantoki — ishwagara yazimye ni alikali kandi ishobora kubabaza uruhu.

Vanga ifu y’irangi ry’ubutaka n’amazi make ukore uruvange rworoshye, hanyuma uruvange mu shingiro rya kazeyine. Irangi ryose rikomoka ku mabuye rirakora: ochre y’umuhondo, ochre itukura, umber, sienna, irangi ry’umukara w’itabi cyangwa umweru wa titani. Ongeramo ifu y’irangi kugeza ugeze ku ibara wifuza — irangi rya kazeyine ryuma ryerurutse gato kurusha iyo ritose, bityo uruvange urugire rwijimye gato kurusha ibara ushaka. Ongeramo amazi kugira ngo urinanure rigere ku buryo bwo gusiga n’uburoso — rigomba gutemba neza rivuye ku buroso ariko rikagira umubiri mwiza. Koresha irangi mu masaha 24 — kazeyine ibora vuba.

Siga irangi rya kazeyine ku buso busukuye kandi bwumye — igiti, isima cyangwa amatafari — ukoresheje uburoso. Siga ibyiciro 2-3 binanutse, ureke buri cyiciro cyume amasaha 4-6. Irangi ryuma rikagira isura nziza iringaniye idashashagirana imeze nka distemper ariko rikomeye kandi rirwanya amazi. Nyuma y’amasaha 24-48 yo gukomera, irangi rya kazeyine ntiriba rigishonga mu mazi — kazeyinate ya kalisiyumu ifatana igakora urusobe rudashonga. Kugira ngo rirusheho kuramba ku bikoresho by’inzu, funga irangi ryumye ukoresheje amavuta ya linseed cyangwa ibishashara by’inzuki. Sukura uburoso n’amazi ashyushye ako kanya nyuma yo kubukoresha.