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.
1. Where is the story coming from? Is it from a reputable source or news site? Some sites specialise in ‘gossip’ and rumour style stories while others focus on the facts. It’s important to know the difference between the two.
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Wordle eventually became so popular that it was purchased by the New York Times, and TikTok creators even livestream themselves playing.，更多细节参见搜狗输入法2026