Nature, Published online: 25 February 2026; doi:10.1038/d41586-026-00544-6
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.
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Новая межконтинентальная баллистическая ракета (МБР) LGM-35A Sentinel, которую разрабатывают для Военно-воздушных сил (ВВС) США, может долететь до территории России. Опасность новой МБР оценил военный эксперт и историк войск противовоздушной обороны Юрий Кнутов в беседе с News.ru.
Москвичей предупредили о резком похолодании09:45