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.
Раскрыты подробности похищения ребенка в Смоленске09:27
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5.88 x 2.82 x 0.28 inches
One user Alastair, or Eret, who hosts a server on the platform with more than 60,000 users, told the BBC simply, "I do not trust them."