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.
Фото: Мария Девахина / РИА Новости
，推荐阅读safew官方下载获取更多信息
使用 system 不会激活函数调用模式。，详情可参考safew官方版本下载
15:21, 27 февраля 2026Наука и техника，推荐阅读im钱包官方下载获取更多信息
华纳兄弟与派拉蒙签署协议，同意被其收购