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.
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"I guess it's bittersweet that I'm the first one, the first woman, to get it," she told BBC News.，详情可参考搜狗输入法2026
第一百三十八条 公安机关及其人民警察不得将在办理治安案件过程中获得的个人信息，依法提取、采集的相关信息、样本用于与治安管理、查处犯罪无关的用途，不得出售、提供给其他单位或者个人。
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「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境
'Too risky'，详情可参考搜狗输入法2026