// block: Wait for space (unbounded pending queue)
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.，推荐阅读旺商聊官方下载获取更多信息
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Сожительница подозреваемого в похищении 9-летней девочки задержана в Смоленске. Об этом сообщает ТАСС со ссылкой на правоохранительные органы.，详情可参考爱思助手下载最新版本
Раскрыты подробности похищения ребенка в Смоленске09:27