Il Manuale della Giovane Biotecnologa
CAPITOLO 1.
Dagli appunti scarabbochiati sui guanti in nitrile:
Se si rimane chiusi in lab senza cibo:
Prendere una beaker aggiugnerci 25% w/v di latte in polvere.
Porre il beaker sull'agitatore magnetico riscaldando. Agitando ad una velocita' di 2-3 e riscaldando ad una temperatura di c.a. 80-90°C.
Aggiungere 2-5% w/v di acido citrico*
Con un cell strainer raccogliere i fiocchi che si formano e ponendoli in un petri dish.
Optional: aggiungere dell'NaCl (q.b.) soppure saccarosio (o fruttosio in caso di versione dietetica)
Lasciare raffreddare e una volta che ha raggiunto R.T. riporre in camera fredda!
Ed ecco la ricotta fatta in lab!!!
*potete anche farvi una soluzione 3M di a. citrico e poi aggiungere a goccia a goccia finche non si inziano a formare i grumi/fiocchi
Glossario di termini laboratoriosi:
w/v - peso su volume
cell strainer -
Petri dish -
R.T. - Temperatura Ambiente
11 commenti:
brava brava brava!
mi domandavo...l'attrezzatura sarà difficile trovarla in un negozio di casalinghi!?
bacioni
Mo' me lo segno: non si sa mai, nella vita. :)
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