Isithombe: Ukusethwa Kwelebhu Ye-Lactic Acid Bacteria
Kushicilelwe: Septhemba 25, 2025 16:42:13 UTC
Isigcawu selebhu ehlanzekile esibonisa ibhodlela elibhalwe ukuthi le-lactic acid bacterium, isitsha se-Petri esinamakholoni aluhlaza, kanye nesibonakhulu esiphezu kwebhentshi elimhlophe.
Lactic Acid Bacteria Lab Setup
Isithombe sibonisa indawo ebhalwe ngokucophelela futhi enemininingwane eminingi ebekwe ngaphakathi kwelabhorethri ye-microbiology yochwepheshe, eklanyelwe ukuxhumana ngokubonakalayo ngenqubo nokunemba okuhilelekile ekuhloleni amasiko amagciwane e-Lactic acid asetshenziswa ekuvubeleni kukabhiya omuncu. Isimo sezulu sihlanzekile, siyakhanya, futhi sihlelekile, sinezinga lokushisa elipholile elinombala eliqinisa umqondo wokunemba komtholampilo kanye nokuqina kwesayensi. Yonke into esesigcawini ibonakala ibekwe ngamabomu ukuze kugqanyiswe uhlobo lokuhlaziya lomsebenzi owenziwayo.
Ngaphambili, okuyiyona nto evelele isibukeli, hlala izinto ezimbili ezibalulekile: isitsha sengilazi esincane, esicacile kanye nesitsha sePetri esingashoni. Ibhodlela liyisilinda futhi livalwe nge-screw cap emhlophe, egcwele cishe uhhafu ngoketshezi oluphuzi oluphaphathekile, olukhanya kancane. Ilebula emhlophe qhwa ebhodleleni inombhalo omnyama ogqamile othi “LACTIC ACID BACTERIA CULTURE,” okubonisa ngokucacile ekuqukethe. Indawo yengilazi yebhodlela ibamba ukukhanya kwaselabhorethri okugqamile ngokugqama okucijile emaphethelweni ayo, okugcizelela ukuhlanzeka kwayo nesimo esiyinyumba. Ukuboniswa kokukhanya okuncane kucwebezela ku-meniscus yoketshezi olungaphakathi, okuphakamisa ukuphathwa ngokucophelela nokulinganisa okunembayo.
Eceleni kwebhodlela, eliphansi kancane futhi liyisicaba ngokumelene nebhentshi elimhlophe, kunesitsha sePetri. Yenziwe ngengilazi ecacile noma ipulasitiki ebonisa ngale yezinga eliphezulu, enemiphetho ebushelelezi, eyindilinga ebamba izindandatho ezithambile zokukhanya okukhanyayo. Ngaphakathi kwawo, asakazwa kuyo yonke i-agar medium yezakhi, kukhona amakoloni amaningi ahlakazeke ngokulinganayo amagciwane. Anemibala eluhlaza okwesibhakabhaka ngokugqamile, abonakala njengamachashaza amaningi amancane, ayindilinga ahluka ngosayizi ocashile. Amachashazi ahlelwe ngephethini ephakamisa ukukhula okukhulisiwe kusuka kumakoloni ngamanye, okubonisa ukusabalala okuchumayo kwamagciwane e-lactic acid. Ukugxila okubukhali esitsheni se-Petri kuvumela umbukeli ukuthi abone kokubili ubumbudumbudu obuhle bamaqoqo ebhaktheriya kanye nokucaca okungenasici kwesitsha ngokwaso, esincike ngokuphelele endaweni yokusebenza engenabala.
Kwesokudla, okweqa ingxenye engaphambili kodwa kuhlehla kancane endaweni emaphakathi, kumi isibonakhulu esiyinhlanganisela. Isisekelo sayo siqinile futhi simnyama ngombala, kuyilapho umzimba wayo wensimbi ubenyezela kancane ngaphansi kokukhanya okulinganayo. Inhloso yokuhlanganisa ilensi ibheke esitsheni sePetri, okubonisa ngokusobala ukuhlolwa okusebenzayo kwamakoloni amagciwane. Izimpawu eziqoshwe kahle ku-lens casing, okuhlanganisa ukucaciswa kokukhulisa, zifundeka ngokucacile, okuqinisa ukunemba kwesayensi kwesilungiselelo. Ukuba khona kwesibonakhulu kuxhumanisa amakholoni ebhaktheriya abonakalayo esitsheni nemininingwane yeselula engabonakali emele.
Emkhathini othe ukufiphala kancane kunezingcezu ezengeziwe ze-glassware yaselabhorethri ejwayelekile namathuluzi anikela ubuqiniso bomongo ngaphandle kokuphazamisa ekugxilweni kwayo okuyinhloko. Iqoqo lama-pipette aneziqongo eziluhlaza okwesibhakabhaka ame aqondile ku-rack, ama-shaft awo azacile abamba imisebe emincane yokukhanya. Eduze kwawo kukhona amabhikha engilazi ahlukahlukene namasilinda aneziqu, ukubonakala kwawo kuhlangana kancane kumathoni apholile angemuva. Umkhumbi wokuvubela wengilazi oyindilinga oqukethe uketshezi olufudumele lwenhlaka inikeza indawo ephikisayo ebonakalayo ephalethini lombala opholile, okusikisela ukusetshenziswa kwalawa masiko ebhaktheriya ekukhiqizeni utshwala. Lezi zinto zihlelwe ngobunono futhi azinayo imfuhlumfuhlu, zidlulisa ukusebenza kahle nokuhleleka.
Ingemuva liqedela ukwakheka ngendawo yaselabhorethri ebanzi: ishelufu elimhlophe elikhanyayo liphethe imigqa yezingilazi ezengeziwe, amaflaski amasiko, neziqukathi eziyinyumba, zonke zihlelwe ngokulinganayo. Ukukhanyisa kuyakhanya kodwa kusabalele, kuqeda ithunzi elibi futhi kugeze isikhala ngokukhanya okuhlanzekile, okucishe kube komtholampilo. Amathoni aphansi apholile aluhlaza okwesibhakabhaka abusa izinga lokushisa lombala, egcizelela ubunyumba kanye nokuqina kwesayensi ngenkathi futhi ethuthukisa ukubonakala kwamakoloni ebhaktheriya anamabala aluhlaza esitsheni sePetri. Izindonga namashalofu amhlophe noma ampunga ngokukhanyayo, aphinde abonise futhi ahlukanise ukukhanya ukuze kugcinwe ukucaca okubonakalayo.
Sekukonke, isithombe sidlulisa indawo yophenyo lwesayensi olunezigwegwe. Ilinganisa ukugxila okubukhali ngaphambili—lapho isiko lebhaktheriya le-lactic acid liboniswa kokubili njengesampula eliwuketshezi nanjengamakoloni abonakalayo—ngokuthambisa kancane kwemininingwane ngasemuva, efaka umsebenzi esimweni sawo esifanele selabhorethri. Ukwakheka, ukukhanya, nokukhethwa kwezinto konke kuhlangana ukuze kugqanyiswe ukunakekelwa kobuchwepheshe nokuhlaziya okuhilelekile ekuhloleni nasekulondolozeni lawa masiko okuphisa okukhethekile, ukuwaveza njengakho kokubili abalulekile ngokwesayensi futhi aphathwa ngokucophelela.
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