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  • Comparison of three rapid methods, tributyrine, 4-methylumbelliferyl butyrate, and indoxyl acetate, for rapid identification of Moraxella catarrhalis.

Comparison of three rapid methods, tributyrine, 4-methylumbelliferyl butyrate, and indoxyl acetate, for rapid identification of Moraxella catarrhalis.

Journal of clinical microbiology (1994-05-01)
E Speeleveld, J M Fossépré, B Gordts, H W Van Landuyt
ABSTRACT

Moraxella catarrhalis can easily be differentiated from other oxidase-positive, gram-negative cocci with tributyrine, 4-methylumbelliferyl butyrate, or indoxyl acetate. All M. catarrhalis give positive reactions, and all Neisseria spp. give negative reactions. The 4-methylumbelliferyl butyrate tube test and indoxyl acetate strip test provide same-day identification of M. catarrhalis isolates.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Indoxyl acetate, ≥95% (GC)
Sigma-Aldrich
4-Methylumbelliferyl butyrate, suitable for fluorescence, ≥95% (HPCE)