Isithombe: Imvubelo Ukuvutshelwa e Flasks Laboratory

Lesi sithombe sinikeza umbono ophoqelelayo emhlabeni olawulwayo kanye ne-methodical wesayensi yokuvutshelwa, lapho ukunemba namandla ebhayoloji ehlangana khona endaweni yaselabhorethri. Indawo okugxilwe kuyo yesehlakalo amaflaski amathathu e-Erlenmeyer, ngalinye ligcwele uketshezi olunamagwebu, olunombala ophuzi oluzungeza ngamandla abonakalayo. Amaflask ahlelwe ngobunono ebhentshini lensimbi ekhanyayo ekhanyayo, ukwakheka kwawo okunamathelayo kanye nezimpawu ezithweswe iziqu ezivusa ukuqina kokuhlolwa kwesayensi. Uketshezi olungaphakathi kuyacaca ukuthi luyabila—amabhamuza amancane akhuphuka agelezele kancane, aqhekeze phezulu bese enza igwebu elithambile elinamathela ezindongeni zangaphakathi zengilazi. Lokhu kusebenza kahle akuwona nje ubuhle; kuyisignesha ye-yeast metabolism ekuhambeni, inkomba ebonakalayo yokuthi ushukela uguqulwa ube utshwala ne-carbon dioxide.

I-flask ngayinye ivalwa ngepulaki likakotini, indlela yakudala esetshenziswa kumalebhu e-microbiological ukuvumela ukushintshaniswa kwegesi kuyilapho kuvimbela ukungcoliswa. Amapulaki ahlala kahle ezintanyeni zamaflask, ukuthungwa kwawo okunefibrous kuphambene nengilazi ebushelelezi kanye noketshezi oluguqukayo ngaphakathi. Lezi zimpawu ziphakamisa ukuthi okuqukethwe kuqashwe ngeso elibukhali, mhlawumbe njengengxenye yocwaningo lokuqhathanisa uhlobo lwemvubelo noma izimo zokuvutshelwa. Ukuba khona kwezimpawu zevolumu—kusuka ku-100 mL kuya ku-500 mL—kwengeza olunye ungqimba lokunemba, okubonisa ukuthi inqubo ibalwa futhi ilawulwa kuzo zonke izigaba.

Ukukhanyisa ekamelweni kuthambile futhi kuhlakazekile, kukhanyisa ibhentshi namaflaski. Igqamisa ukukhanya kwensimbi engagqwali, ukugqama koketshezi, kanye nokuthungwa okucashile kwegwebu nokotini. Izithunzi ziwa kancane, zidala ukujula ngaphandle kokuphazamiseka, futhi i-ambiance iyonke ingeyokugxila okuthulile. Ingemuva, nakuba lifiphele kancane, lembula indawo yaselabhorethri ehlanzekile, yesimanje—amakhabethe, izinto zokusebenza, nezindawo ezikhuluma ngobunyumba nokuhleleka. Lesi silungiselelo siqinisa umqondo wokuthi ukuvutshelwa, nakuba kusekelwe esikweni lasendulo, nakho kuyisihloko sophenyo lwesayensi lwesimanje.

Okwenza lesi sithombe sigqame kakhulu yikhono laso lokudlulisa kokubili ubunkimbinkimbi nobuhle be-yeast pitching. Lesi sigaba sokwenza utshwala, lapho imvubelo yethulwa khona ku-wort, ibalulekile kumphumela womkhiqizo wokugcina. Izinga okufakwa ngalo imvubelo, impilo nokusebenza kwayo, nezimo esebenza ngaphansi kwazo konke kuthonya ukunambitheka, iphunga, nokucaca kukabhiya. Isithombe sithwebula lesi sikhathi ngenhlonipho, singasibonisi njengesinyathelo esivamile kodwa njengesenzo esibalulekile soshintsho. Uketshezi olunyakazayo, amabhamuza akhuphukayo, ukugcinwa ngokucophelela—konke kusikisela inqubo ephilayo, esabelayo, nencike ngokujulile ekuqondeni nasekungeneleleni komuntu.

Ithoni yesithombe ingokomtholampilo kodwa ifudumele, ibhalansi ebonisa isimo esimbaxambili sokuphisa njengokubili kwesayensi nomsebenzi wezandla. Imema umbukeli ukuthi ajabulele ubuhle bokuvutshelwa ekuqaleni kwakho konke, ukubona ubuciko kugwebu kanye nokunemba ezikalini. Kuyisithombe sokunakekela kanye nelukuluku, lenqubo eqala ngokubheka futhi iphethe ngokudala. Ngokwakheka kwaso, ukukhanya, nodaba lwesihloko, isithombe siphakamisa iflaski le-Erlenmeyer elithobekile libe umkhumbi ongaba khona, lapho isayensi yezinto eziphilayo ihlangabezana nenhloso kanye nekusasa lokunambitha lithuthuka buthule.

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