Explaining why customers further afield will be asked to recycle the bottles instead of returning them, Hartwig adds: "If the people purchasing them are from a different state, it's very unlikely they'll bring them back."
‘4심제’ 재판소원법 與주도 국회 통과…헌재가 대법판결 번복 가능
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Москвичей предупредили о резком похолодании09:45
This was not the first time that microbiologists experienced problems with agar. A phenomenon called “The Great Plate Count Anomaly” baffled researchers in the early 20th century when they observed that the number of cells seen under a microscope didn’t match the actual number of colonies growing on an agar plate. Investigating this discrepancy, researchers found agar itself to be the culprit: when nutrient broths are heated with agar during boiling, harmful byproducts (hydroperoxide) can form due to the reaction of agar with phosphate minerals contained in the media. Researchers can avoid this by autoclaving agar separately from the nutrient broth, or by reducing the amount of agar used.