초록

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Abstract ▼ AI-Helper

Elastase inhibitor (EI) producing microorganisms were screened by microplate-assay of culture broth using Succinyl-$(Alanine)_3$-Nitroanilide as a chromogenic substrate. The portion of microorganisms showed EI activity above 90% was about 2% of all assayed. Isolated SMF-11 showed relative...

Elastase inhibitor (EI) producing microorganisms were screened by microplate-assay of culture broth using Succinyl-$(Alanine)_3$-Nitroanilide as a chromogenic substrate. The portion of microorganisms showed EI activity above 90% was about 2% of all assayed. Isolated SMF-11 showed relatively high EI activity after filtration using membrane filter of NMWL 3,000. SMF-11 was identified as Streptomyces sp. according to results of morphological or physicochemical identification. SMF-11 has both rectiflexible and spiral spore chains with smooth spore surface and cell wall contained LL-DAP, iso- and anteiso-fatty acids. The amino acids in cell wall were alanine, glutamic acid and glycine. Fifty unit characters for major cluster were tested and the data were analyzed numerically using the TAXON program. The isolate SMF-11 was identified as a strain of Streptomyces lavendulae.

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