Khoom noj khoom haus pigments muaj xws li ntuj beta carotene, beet liab, curcumin, safflower daj, shellac liab, lingonberry liab, kua liab, kua txiv kab ntxwv, liab mov liab, chrysanthemum daj extract, dub taum liab, sorghum liab, pob kws daj, radish liab, amaranth, amaranth aluminium pas dej, carmine, carmine aluminium pas dej, erythrosine, erythrosine txhuas pas dej, thiab lwm yam.
Coloring zaub mov yog hom xim, uas yog, cov khoom noj khoom haus ntxiv uas tuaj yeem noj hauv qhov nruab nrab thiab tuaj yeem hloov cov xim qub ntawm cov zaub mov rau qee yam. Zoo li cov khoom noj qab zib, xim zaub mov muab faib ua ob hom: ntuj thiab hluavtaws. Ntuj pigments feem ntau yog tsim los ntawm cov nroj tsuag muaj xim zoo nkauj. Cov xim ntawm cov nroj tsuag no, xws li tawv, plhaub, nplooj, thiab slag, feem ntau yog siv rau kev siv dav. Kuj tseem muaj cov khoom tsim los ntawm cov tsiaj, xws li lac pigment (cochineal pigment), thiab cov uas tsim los ntawm cov kab mob, xws li monascus pigment. Txoj kev npaj: Caramel xim yog tau los ntawm cua sov thiab coking qab zib tshuaj nyob rau hauv high kub, thiab nws yog feem ntau muab rho tawm nrog dej los yog lwm yam kev daws teeb meem, ntxiv refined, concentrated thiab qhuav. Kuj tseem muaj txoj hauv kev kom qhuav thiab pulverizing cov xim cog cov khoom rau kev thov ncaj qha. Kuj tseem muaj cov txheej txheem biotechnological xws li cov ntaub so ntswg kab lis kev cai. Muaj cov txheej txheem tsim tshuaj lom neeg los npaj cov pigments nrog cov qauv tshuaj tib yam li -carotene, uas muaj kev nyab xeeb dua li cov xim hluavtaws.