Process for the biotechnical production of rhamnolipids includin

Details Process for the biotechnical production of rhamnolipids includin Process for the biotechnical production of rhamnolipids includin

1985-02-15

1989-03-21

Tarcza, John

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

435100, 435105, 435249, 435874, 536 182, 536 41, C07G 1306, C12P 1944, C12P 1912, C12P 1902

Patent

active

048142727

ABSTRACT:
Rhamnolipids with high surface activity are produced micro iologically in high yield per g of dry cell substance using Pseudomonas spec. DSM 2874 in the form of growing, resting and immobilized cell mass in an aqueous medium containing at least one assimilable carbon source at a pH of 6.7 to 7.3 and a temperature of 30.degree. to 37.degree. C. Two new rhamnolipids with only one .beta.-hydroxydecanoic acid residue in the molecule and defined as .alpha.-L-rhamnopyranosyl- and 2-O-.alpha.-L-rhamnopyranosyl-.alpha.-L-rhamnopyranosyl-.beta.-hydroxydeca noic acid with a molecular weight of 334 and 480, respectively, are obtained.

REFERENCES:
Wagner, Third European Congress on Biotechnology, vol. 1 (1984), pp. I-3-I-8.
Syldatk et al., "Production of Four Interfacial Active Rhamnolipids from n-alkanes or Glycerol by Resting Cells of Pseudomonas Species, DSM 2874", Z. Naturforsch, 40c:61-67 (1985).
Wagner et al., "Production of Surface Active Anionic Glycolipids by Resting and Immobilized Microbial Cells", Eur Congr. Biotechnol., 3rd, 1984 1:3-8 (Abstract).
Mandelstam et al., Part II, Chapter 2, "Growth: Cells and Populations", Biochemistry of Bacterial Growth, Blackwell Scientific Publications, Boston, 1982, pp. 120-122.
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