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Rapid TLC identification test for khat (Catha edulis)

✍ Scribed by T. Lehmann; S. Geisshüsler; R. Brenneisen


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
415 KB
Volume
45
Category
Article
ISSN
0379-0738

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A rapid method to evidence urease activity is described. Urea hydrolysis and consequent production ammonia are detected by a chemical reaction producing a blue phenol compound (indophenol blue). Three hundred and three yeast were tested. Out of 107 urease-positive organisms detected by Christensen's