Qhov txawv ntawm Streak Plate thiab Spread Plate

Cov txheej txheem:

Qhov txawv ntawm Streak Plate thiab Spread Plate
Qhov txawv ntawm Streak Plate thiab Spread Plate

Video: Qhov txawv ntawm Streak Plate thiab Spread Plate

Video: Qhov txawv ntawm Streak Plate thiab Spread Plate
Video: Qhov txawv ntawm Zaj Tshoob and Txiv Xaiv 2024, Hlis ntuj nqeg
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Qhov sib txawv tseem ceeb ntawm cov phaj streak thiab cov phaj sib kis yog cov phaj streak yog siv los cais thiab ntxuav cov kab mob tshwj xeeb los ntawm kev sib xyaw ntawm cov kab mob thaum lub phaj kis tau siv los txheeb xyuas thiab ntsuas cov kab mob hauv cov qauv.

Apart from qhov sib txawv saum toj no, muaj ntau lwm qhov sib txawv ntawm streak phaj thiab kis phaj. Nyob rau hauv streak phaj, inoculum qhia rau hauv nruab nrab nruab nrab siv ib lub voj inoculation los yog paj rwb swab thaum nyob rau hauv kis phaj, inoculum draws siv lub sterile micro-pipette. Tsis tas li ntawd, nyob rau hauv streak phaj, zig-zag qauv kab yog kos rau ntawm qhov chaw ntawm cov tshiab nruab nrab thaum nyob rau hauv lub phaj kis, lub inoculum yog kis tusyees nyob rau saum npoo ntawm nruab nrab. Streak phaj thiab Spread phaj yog ob txoj kev siv microbial los cais, ntxuav thiab sau cov kab mob. Muaj qhov sib txawv raws li qhov zoo sib xws ntawm streak phaj thiab kis phaj. Ntxiv mus, ob txoj kev no feem ntau thiab niaj hnub siv hauv kev tshawb fawb kab mob.

Dab tsi yog Streak Phaj?

Streak phaj yog cov txheej txheem uas tso cai rau cais thiab ntxuav cov kab mob hauv cov qauv. Yog li ntawd, nws yog ib txoj hauv kev yooj yim thiab yooj yim los ua hauv chav kuaj. Peb tuaj yeem dilute tus qauv ua ntej qhia rau hauv qhov nruab nrab loj hlob tshiab. Txawm li cas los xij, ob peb yam khoom tsim nyog los ua cov txheej txheem no. Lawv yog ib lub voj inoculating los yog paj rwb swab, solidified agar daim hlau, bunsen burner, thiab laminar cua ntws. Ib lub voj voog ntawm inoculum yuav tsum tau muab coj los ntawm cov qauv thiab kos cov kab zig-zag zag rau ntawm qhov chaw tshiab nyob rau hauv qhov chaw tsis muaj menyuam (feem ntau hauv lub laminar cua ntws).

Qhov txawv ntawm Streak Plate thiab Spread Plate
Qhov txawv ntawm Streak Plate thiab Spread Plate

Daim duab 01: Streak Plate

Inoculated daim hlau yog incubated ntawm qhov kub thiab txias. Cov kab mob sib cais yuav loj hlob ntawm cov kab kos. Tsis tas li ntawd, txaus siab lossis xav tau ib pawg neeg tuaj yeem ua kom huv ntxiv los ntawm kev siv tib txoj kev kom txog thaum koj tau txais cov kab mob purified. Li no, txoj kev no tsim nyog rau kev cais cov kab mob rau hauv ib cheeb tsam thiab xaiv thiab ntxuav koj cov kab mob uas xav tau.

Dab tsi yog Spread Plate?

Ib daim phaj kis yog lwm cov txheej txheem microbial uas tso cai rau suav cov kab mob hauv cov qauv, yog li nws pab txhawb kom muaj pes tsawg tus kab mob. Nws muab cov ntaub ntawv hais txog tus naj npawb ntawm cov kab mob uas muaj nyob hauv cov qauv. Hauv cov txheej txheem no kuj tseem yuav tsum tau dilute cov qauv ua ntej inoculating rau hauv nruab nrab tshiab.

Qhov sib txawv tseem ceeb ntawm Streak Plate thiab Spread Plate
Qhov sib txawv tseem ceeb ntawm Streak Plate thiab Spread Plate

Daim duab 02: Nplaim Phaj

Tsis tas li ntawd, micropipette thiab lub tshuab ua kom tsis muaj menyuam yog cov khoom tseem ceeb tsim nyog los ua cov txheej txheem no. Ib qho haum aliquot (feem ntau 0.1 ml lossis 1 ml) yog tawm los ntawm cov qauv los ntawm micropipette thiab xa mus rau hauv lub phaj tshiab. Siv ib tug spreader, lub inoculum kis tusyees thoob plaws qhov chaw thiab incubates ntawm ib tug haum kub. Cov kab mob aerobic yuav loj hlob ntawm qhov nruab nrab ntawm qhov nruab nrab raws li cov cheeb tsam sib cais. Yog li ntawd, kev suav sau yuav yooj yim hauv cov txheej txheem no yog tias qhov dilution yog lawm. Raws li kev pom zoo, cov phiaj xwm uas muaj 30 txog 300 pawg raug xaiv rau kev suav sau. Siv qhov sib npaug, peb tuaj yeem ua qhov kom muaj nuj nqis tom qab suav sau.

Dab tsi zoo sib xws ntawm Streak Plate thiab Spread Plate?

  • Streak phaj thiab kis phaj yog ob txoj kev siv tshuaj microbial uas peb siv hauv bacteriology.
  • Ob txoj kev siv los cais lossis cais cov kab mob los ntawm kev sib xyaw.
  • Nyob rau hauv ob txoj kev, peb tuaj yeem dilute tus qauv ua ntej inoculation.
  • Ob txoj hauv kev yuav tsum tau ua kom muaj zog agar daim hlau.
  • Cov kab mob loj hlob ntawm qhov nruab nrab ntawm ob txoj hauv kev.
  • Nyob rau hauv ob txoj kev, cov kab mob aerobic loj hlob ntawm qhov nruab nrab.
  • Peb siv cov cuab yeej Sterilized inoculating los qhia cov inoculum rau hauv nruab nrab tshiab hauv ob txoj kev.
  • Ib puag ncig tsis muaj menyuam yog tsim nyog los ua ob txoj kev.

Qhov txawv ntawm Streak Plate thiab Spread Plate yog dab tsi?

Streak phaj txheej txheem tso cai rau koj cais thiab ntxuav cov kab mob. Ntawm qhov tod tes, cov txheej txheem sib kis tau tso cai rau koj kom suav cov kab mob. Qhov no yog qhov sib txawv tseem ceeb ntawm streak phaj thiab kis phaj. Tsis tas li ntawd, peb tuaj yeem siv lub voj inoculating lossis paj rwb swab ua cov cuab yeej inoculating hauv streak phaj thaum peb xav tau ib qho kev sib kis rau cov txheej txheem sib kis. Ib lub voj voog ntawm cov qauv yog qhov ntau uas kos los ntawm cov qauv hauv thawj txheej txheem thaum 0.1 ml lossis 1 ml yog qhov ntau ntawm cov txheej txheem thib ob. Inoculum qhia rau hauv qhov nruab nrab tshiab los ntawm kev kos cov kab zig-zag hauv cov phaj streak thaum lub inoculum kis tusyees thoob plaws hauv qhov chaw hauv lub phaj kis.

Qhov sib txawv ntawm Streak Plate thiab Spread Plate hauv Tabular Form
Qhov sib txawv ntawm Streak Plate thiab Spread Plate hauv Tabular Form

Summary – Streak Plate vs Spread Plate

Streak phaj thiab kis phaj yog ob txoj hauv kev microbial ua hauv bacteriology. Streak phaj txhawb kev sib cais thiab ua kom huv ntawm cov kab mob tshwj xeeb thaum sib kis phaj ua kom yooj yim txheeb xyuas cov kab mob hauv cov qauv. Ob txoj kev no muaj txiaj ntsig zoo rau kev tshawb fawb kab mob, tshwj xeeb tshaj yog rau cov kab mob aerobic. Streaks nyob rau hauv ib tug zig-zag qauv yog ua nyob rau hauv ib tug streak phaj thaum lub inoculum yog sib npaug zos rau saum npoo ntawm nruab nrab nyob rau hauv lub phaj kis. Qhov no yog qhov txawv ntawm streak phaj thiab kis phaj.

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