Video: Dab tsi yog mannitol ntsev agar siv rau?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Mannitol ntsev agar los yog MSA feem ntau siv xaiv thiab sib txawv loj hlob nruab nrab hauv microbiology. Nws txhawb kev loj hlob ntawm ib pab pawg ntawm cov kab mob thaum tiv thaiv kev loj hlob ntawm lwm tus.
Dhau li ntawm no, dab tsi loj hlob ntawm mannitol ntsev agar?
Txais tos rau Microbugz - Mannitol ntsev Agar . Mannitol ntsev Agar (MSA) yog kev xaiv thiab qhov sib txawv nruab nrab. Lub siab concentration ntawm ntsev (7.5%) xaiv rau cov tswv cuab ntawm cov genus Staphylococcus, vim lawv tuaj yeem ua rau muaj cov ntsev ntau ntau. Cov kab mob los ntawm lwm cov tsiaj tuaj yeem muaj loj hlob , tab sis lawv feem ntau loj hlob heev weakly.
Tseem Paub, daim ntawv thov kev xeem MSA yog dab tsi? Kev rho tawm thiab sib txawv ntawm Staphylococcus aureus. Dab tsi yog Mannitol muaj nyob hauv MSA ua? Muab cov substrate rau fermentation thiab ua rau qhov nruab nrab sib txawv.
Ib sab saum toj no, E coli tuaj yeem loj hlob ntawm mannitol ntsev agar?
(A) Staphylococcus aureus, (B) Staphylococcus epidermidis, thiab (C) Escherichia coli cov streaked rau ntawm a mannitol ntsev agar phaj. Cov mannitol tshuaj fermenting colony (daj) yog S. The kev loj hlob ntawm E . coli cov tau inhibited los ntawm lub siab ntsev siab.
Koj ua li cas txhaj tshuaj mannitol ntsev agar?
Xaiv ib qho mannitol ntsev agar phaj thiab faib ua ib nrab. Inoculate ob qho tib si kab mob nyob rau hauv ib lub phaj --- ib txoj kab ncaj nraim los yog zig-zag. Nco ntsoov tsis txhob kis tus kab mob 2 ntau dhau ua ke.
Pom zoo:
Puas yog ntsev ntsev ntawm tes nyab xeeb rau menyuam yaus?
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Lub hom phiaj ntawm txhua feem hauv mannitol ntsev agar phaj yog dab tsi?
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