[2] MacConkey agar muaj cov cov khoom noj tseem ceeb uas xav tau rau kev loj hlob ntawm cov kab mob. Cov khoom tseem ceeb ntxiv muaj xws li siv lead ua violet dye, bile ntsev, lactose, thiab nruab nrab liab (pH qhia). Cov lactose hauv agar yog qhov chaw fermentation.
MacConkey agar txiav txim siab dab tsi?
MacConkey agar yog ib qho kev xaiv thiab sib txawv kab lis kev cai nruab nrab rau cov kab mob. Nws yog tsim los xaiv cais Gram-negative thiab enteric (feem ntau pom nyob rau hauv txoj hnyuv) cov kab mob thiab sib txawv raws li on lactose fermentation.
Dab tsi loj hlob zoo tshaj ntawm MacConkey agar?
MacConkey's yog ib qho kev xaiv nruab nrab uas inhibits kev loj hlob ntawm Gram-zoo kab mob vim muaj cov crystal violet thiab bile ntsev. Gram-negative bacteria loj hlob zoo ntawm MAC.
Dab tsi yog cov khoom xyaw sib txawv hauv MacConkey's Agar?
Qhov nruab nrab no yog ob qho tib si xaiv thiab qhov sib txawv. Cov khoom xyaw xaiv yog cov kua tsib ntsev thiab cov zas xim, siv lead ua violet uas inhibit qhov kev loj hlob ntawm cov kab mob Gram-zoo. Cov khoom sib txawv yog lactose.
Dab tsi yog agar txawv?
Differential nruab nrab. ib qho nruab nrab uas yog siv los sib txawv ntawm cov kab mob sib txawv raws li lawv cov xim sib txawv lossis cov duab colony. Piv txwv ntawm cov xov xwm sib txawv yog: Macconkey's agar thiab SS agar.
