Before agar, microbiologists had experimented with other foodstuffs as microbial media. They turned to substances rich in the starches, proteins, sugars, fats, and minerals that organisms need for growth, testing with broths, bread, potatoes, polenta, egg whites, coagulated blood serums, and gelatine. However, none worked particularly well: all were easily broken down by heat and microbial enzymes, and their surface, once colonized, became mushy and unsuitable for isolating microbes.
[사설]계엄 때보다 낮은 지지율 17%… 국힘의 존재 이유를 묻는 민심
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港府應急住宿安排工作組組長、財政司副司長黃偉綸表示購買業權是「特殊中的特殊」,應只是「一次性」做法,政府不會將此視作先例,因以今次受災規模之廣,沒有有效的巿場機制可以快速、全面處理居民的長遠居住安排。