Isithombe: Yeast Slurry ku-Glass Beaker

Isithombe sibonisa ukwakheka okuhlanzekile, nokuncane okuthwebula ingqikithi yesayensi yokwenziwa kotshwala: ibhekha yengilazi esobala yaselabhorethri egcwele udaka lweyeast enombala okhrimu, ehlezi endaweni yokhuni ebushelelezi. Ibhika, eliyisilinda futhi linembe ekwakhiweni kwalo kwaselabhorethri, linezimpawu zokulinganisa ezicacile eziqoshwe ziqonde ohlangothini olulodwa, kusukela kumamililitha ayi-100 kuye kwangama-500. Lezi zimpawu ezifiphele kodwa ezinenjongo zigcizelela indlela yesayensi etholakala ekwenziweni kokuphisa, lapho ukunemba kubaluleke kakhulu njengesiko. Ingilazi ngokwayo ayinabala futhi icace ngokuphelele, ivumela ukubonakala okugcwele kwe-slurry ngaphakathi. Irimu layo ligobela ngaphandle kancane ku-spout, okwenza umuzwa wokulinganisela phakathi kwefomu nokusebenza.

Ibhika liqukethe imvubelo ewugqinsi, enokhilimu yemvubelo yelager yaseBavaria, evuniwe futhi elungiselelwe ukuphindiselwa - isinyathelo esibalulekile enqubweni yokwenza ubhiya ekhaya. I-yeast slurry iyi-beige e-opaque kuya kombala o-tan okhanyayo, okukhumbuza ukhilimu noma inhlama entsha, indawo yayo egcwele amabhamuza amancane angenakubalwa. Lawa mabhamuza, alengiswa kuyo yonke i-viscous medium, abonisa umsebenzi ophilayo, webhayoloji wamaseli yeast ngaphakathi. Ukuthungwa kubonakala kuminyene kodwa kuthambile, inhlanganisela yobushelelezi nobumbudumbudu okudlulisa isimo sako esikabili: kokubili isampula yesayensi nesiko eliphilayo. Imvubelo ayivezwa njengezinto zaselabhorethri eziyinyumba kodwa njengezinto eziphilayo, ezigcwele buthule.

Ukukhanya kudlala indima ebalulekile ekwakhiweni kwesithombe. Ukukhanya okuthambile, okungokwemvelo kungena kusuka ohlangothini olungakwesokunxele lohlaka, okungenzeka kakhulu kusuka efasiteleni eliseduze, ukugeza ibhakha nokuqukethwe kwalo ngokukhazimula okusabalalisayo. Lokhu kukhanya kugcizelela ukucaca kwengilazi, ukuthungwa okunokhilimu kwe-slurry, kanye nezithunzi ezicashile ezijikijelwa endaweni yokhuni. Okuvelele kucwebezela kancane emaphethelweni ayindilinga ebhikha, kuyilapho imvubelo ngokwayo ibonakala icishe ikhazimule ngaphakathi, yenziwe ikhanye ngokusabalaliswa kokukhanya ngokucophelela. Izithunzi zihlala zithambile futhi zingabonakali, zihlangana kahle nengemuva elincane. Ukukhanyisa kungokwemvelo futhi kunokuthula, kuphazamisa isithombe ngomqondo wokunemba okuzolile.

Indawo yokhuni lapho ibhika lihlezi khona yengeza imfudumalo nokungafani kwemvelo ekucaceni okusemtholampilo kwengilazi nemvubelo. Izinhlamvu zokhuni zingaphansi, isiphetho saso esibushelelezi sihambisana nobuhle obuvinjelwe bokubunjwa. Lesi sisekelo sokhuni sivusa indawo yokusebenzela noma indawo yokwenza ubhiya ekhaya lapho isayensi ihlangana nobuciko. Ngemuva kwebhikha, ingemuva ligcinwa liyi-minimalist ngamabomu futhi lingagxili kancane - udonga olumaphakathi omhlophe-omhlophe olunomphetho obuthakathaka wefreyimu yewindi ebonakalayo kwesokunxele. Lokhu kuba lula okufiphaziwe kugcina ukunaka kombukeli kugxilile kubhekha nokuqukethwe kulo, kugwema ukuphazamiseka kuyilapho kudlulisela umuzwa wokuhlanzeka nokuhleleka.

Ngokwengqikithi, isithombe sithwebula umzuzu obalulekile enqubweni yokuphisa: ukuvunwa nokuphindiselwa kwemvubelo. Ingaphezu nje kwesithako, imvubelo iyinjini yokuvutshelwa, eguqula i-wort ibe ubhiya. Lesi sithombe sigqamisa imvubelo hhayi ngendlela yayo engabonakali, eyi-microscopic, kodwa njengento ephathekayo, engokomzimba ukuminyana nokuthungwa kwayo kuyenza ibonakale icishe icace. Idlulisa ukubaluleka kweyeast njengento ephilayo, leyo efuna ukunakekelwa nokunakwa ngumdidiyeli. Ngokwethula i-yeast slurry ku-beaker ehlanzekile ngaphansi kokukhanya kwemvelo, isithombe sivala igebe phakathi kokunemba kwaselabhorethri nomsebenzi wezandla, okusikhumbuza ukuthi ukwenza utshwala kuko kokubili isayensi nobuciko.

Isimo sengqondo esiphelele sesithombe esokuhlonipha okuthulile. Ukuba lula kwesilungiselelo, uphalethi ovinjelwe wokhuni olufudumele, ingilazi epholile, nemvubelo ekhilimu, nokukhanya kwemvelo okuthambile konke kuyahlangana ukuze kugcizelele ukubaluleka kwalokho okungase kube isinyathelo esinganakwa sokwenza utshwala. Kulo mzuzu, imvubelo ayibungazwa njengomkhiqizo kodwa njengomlingiswa oyinhloko endabeni kabhiya. I-minimalism epholile yesithombe ikhombisa isineke nokuziphatha okudingekayo ekukhiqizeni utshwala, kuyilapho ukugxila kwaso okujulile ku-yeast slurry kuphakamisa lesi siko eliphilayo endaweni evelele.

Isithombe sihlobene: Ubhiya Ovubelayo nge-Wyeast 2206 Bavarian Lager Yeast