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Chemicals that prevent bacterial or fungal spoilage have been used for centuries. Students observe the effects of 4 chemical preservatives-sorbic acid, sodium nitrite, sodium benzoate, and propionic acid-on 6 food spoilage microorganisms. Requires 8 days from setup to completion. Keep bacteria and fungi cultures at room temperature; do not incubate or refrigerate. Recommended for students with moderate experience in microbiology. For a class of 30 students. Comes with perishable materials.
|Bacillus cereus Plate Culture||Included|
|Micrococcus luteus Plate Culture||Included|
|Penicillium chrysogenum Plate Culture||Included|
|Pseudomonas fluorescens Plate Culture||Included|
|Rhizopus stolonifer Plate Culture||Included|
|Saccharomyces cerevisiae Plate Culture||Included|
|Propionic Acid Agar, 0.1%||Included|
|Sodium Benzoate Agar, 1%||Included|
|Sodium Nitrite Agar, 1%||Included|
|Sorbic Acid Agar, 0.1%||Included|
|Sterile Applicator Sticks||36||Included|
|Sterile Petri Dishes||40||Included|
|Autoclave Disposal Bag||Included|
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