# US 5,344,913 A · Biosurfactant cyclopeptide compound produced by culturing a specific Arthrobacter microorganism

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- Number: US 5,344,913 A
- Document ID: US5344913A
- Status: Granted
- Kind: A
- Application number: 08/136,261
- Filed: 1993-10-15
- Granted: 1994-09-06
- Earliest claimed: 1992-10-15
- Assignees: Nikko Bio Technica Co., Ltd.
- Inventors: Tadayuki Imanaka; Shoji Sakurai
- Web page: https://patentgrep.com/patent/US5344913A

## CPC

- C07K 7/06: having 5 to 11 amino acids
- C07K 11/02: cyclic, e.g. valinomycins {; Derivatives thereof}
- C12N 1/205: Bacterial isolates
- C12R 2001/06: Arthrobacter
- Y10S 435/83: Arthrobacter
- C07K: PEPTIDES (peptides in foodstuffs A23; obtaining protein compositions for foodstuffs, working-up proteins for foodstuffs A23J; preparations for medicinal purposes A61K; peptides containing beta-lactam rings C07D; cyclic dipeptides not having in their molecule any other peptide link than those which form their ring, e.g. piperazine-2,5-diones, C07D; ergot alkaloids of the cyclic peptide type C07D519/02; macromolecular compounds having statistically distributed amino acid units in their molecules, i.e. when the preparation does not provide for a specific; but for a random sequence of the amino acid units, homopolyamides and block copolyamides derived from amino acids C08G69/00; macromolecular products derived from proteins C08H1/00; preparation of glue or gelatine C09H; single cell proteins, enzymes C12N; genetic engineering processes for obtaining peptides C12N15/00; compositions for measuring or testing processes involving enzymes C12Q; investigation or analysis of biological material G01N33/00)
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)
- C12R: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A novel biosurfactant having a high surface activity, as well as a microorganism producing the surfactant is disclosed. The biosurfactant according to the present invention is represented by the formula [I]. ##STR1## The present invention also provides Arthrobacter sp. No. 38 (FERM BP-4435) which produces the biosurfactant of the formula [I].

## Claims

### Claim 1

A compound represented by the formula [I]. ##STR5##

### Claim 2 (depends on 1)

The compound according to claim 1, which is represented by the formula [II]. ##STR6##