Cov txheej txheem:
Video: Dab tsi yog petri tais nrog agar?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Ib agar phaj yog a Petri tais uas muaj agar raws li qhov loj hlob nruab nrab ntxiv rau cov as -ham, siv rau kev coj noj coj ua kab mob. Qee zaum cov tshuaj sib xyaw xaiv tau ntxiv rau kev loj hlob, xws li tshuaj tua kab mob.
Tom qab ntawd, ib tus kuj yuav nug, koj siv agar petri tais li cas?
Npaj Kab lis kev cai tais diav
- Cia lub agar txias rau 110-120 ° F (thaum lub raj mis tseem sov tab sis tsis kub heev rau kov) ua ntej ncuav rau hauv cov tais diav petri.
- Swb qhib lub hau ntawm lub tais petri tsuas yog txaus rau ncuav agar rau hauv lub tais.
- Cia cov tais diav petri sawv ntsug ib teev rau agar kom khov ua ntej siv lawv.
Ib sab saum toj no, dab tsi yog qhov txawv ntawm agar daim hlau? Hom ntawm daim hlau agar [hloov kho]
- Ntshav agar - muaj cov qe ntshav los ntawm tsiaj (piv txwv li yaj).
- Cov qhob noom xim kasfes agar - qhov no muaj cov qe ntshav liab, thiab yog siv rau kev loj hlob sai (fussy) cov kab mob ua pa.
- Neomycin agar - muaj cov tshuaj tua kab mob neomycin.
- Sabouraud agar - siv rau cov kab mob.
Yog li ntawd, Agar yog ua los ntawm dab tsi?
g?ːr/ or /ˈ?ːg?r/) los yog agar - agar tseem hu ua "Tuam Tshoj nyom" yog cov khoom zoo li jelly, tau los ntawm algae liab. Agar Nws yog ib qho kev sib xyaw ntawm ob lub ntsiab lus: linear polysaccharide agarose, thiab sib xyaw heterogeneous ntawm me me molecules hu ua agaropectin.
Lub hom phiaj ntawm agar yog dab tsi?
Khoom noj khoom haus Agar yog ib tug general lub hom phiaj , cov khoom noj muaj txiaj ntsig siv rau kev cog qoob loo ntawm microbes txhawb kev loj hlob ntawm ntau yam ntawm cov kab mob uas tsis yoo mov. Khoom noj khoom haus agar yog nrov vim tias nws tuaj yeem loj hlob ntau hom kab mob thiab kab mob, thiab muaj ntau cov as -ham xav tau rau kev loj hlob ntawm cov kab mob.
Pom zoo:
Kuv tuaj yeem siv dab tsi hloov cov tais diav petri?
Txawm hais tias agar yog cov phaj petri nyiam, lwm cov khoom xyaw xws li gelatin tuaj yeem siv thaum tsis muaj agar. Koj tuaj yeem ua koj tus kheej hloov daim ntawv tais diav hauv tsev tawm ntawm cov khoom xyaw hauv chav ua noj. Ntxuav koj txhais tes, koj lub txee thiab txhua yam tais diav uas koj yuav siv kom huv
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Yuav ua li cas koj suav cov kab mob loj hlob hauv Petri tais?
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