About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.
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Penicillin G is produced by Penicillium Chrysogenum that does aerobic respiration. Spores of these fungus are first inoculated into a fed-batch fermenter with the appropriate medium and left to run. 40 to 48 hours later, nutrients will be added at a constant interval, equal amount of waste will be removed at regular intervals. The products are harvested after 7 days. The cells will be filtered from other products (sometimes by a rotary vacuum filter). The antibiotic will then be filtered and extracted by acetic acid and sodium acetate at low temperature. Then purification and packaging is done. I may be wrong. Check some relevant sources to see if I left out anything.
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