Пресс-секретарь президента России Дмитрий Песков назвал абсурдными заявления о принадлежности РФ дрона, перехваченного минувшей ночью Вооруженными силами (ВС) Швеции близ порта Мальме. Его слова приводит РИА Новости.
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Guar gum, a plant colloid, costs less than agar and is better suited for growing thermophilic bacteria, but is also more difficult to handle, being more viscous and less transparent. The bacterial polysaccharide xanthan is cheaper as well but forms weaker jellies that, as with carrageenan, might result in puncturing its surface. Other colloids, like alginate (from brown seaweed) and gellan gum (from a bacterium), don’t set solely based on temperature and require additives for gelation. These additives might interfere with microbial growth and make the preparation of those jellies less handy than agar plates.，推荐阅读爱思助手下载最新版本获取更多信息
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