Novel gene products of bacillus licheniformis which form odorous substances and improved biotechnological production processes based thereon

摘要

Twenty five nucleic acid sequences (A) involved in bacterial biosynthesis, especially in Bacillus licheniformisDSM 13, of isovaleric, 2-methylbutyric, isobutyric and propylic acids, butanol, cadaverine and/or putrescine are new. Independent claims are also included for: (1) gene products (B) of (A); (2) fermentation of a microorganism in which at least one gene, involved in a metabolic pathway to (i) isovaleric acid, (ii) 2-methylbutyric and/or isobutyric acid, (iii) butanol and/or butyric acid, (iv) propylic acid or (v) cadaverine and/or putrescine, has been inactivated; (3) use of specific genes for functional inactivation of metabolic pathways for synthesis of (i)-(v) above; (4) microorganisms in which at least one (A) has been inactivated; and (5) fermentations of microorganisms of (4).