摘要:
The present invention relates to beta-ketoacyl ACP synthase genes of the KASI/KASIV type and proteins encoded by these genes. The genes can be included in nucleic acid constructs, vectors or host cells. Expression of the gene products can alter the fatty acid profile of host cells. The KAS genes can be combined with a FATA or FATB thioesterase gene to create a cell that produces an increased amount of C8-C16 fatty acids. Suitable host cells include plastidic cells of plants or microalgae. Oleaginous microalga host cells with the new genes are disclosed
摘要:
The present invention relates to yeast with an enhanced ginsenoside-producing ability prepared by changing Ald2, Ald6, Zwf1, and Zms1, a method of preparing the yeast, and a method for producing ginsenosides using the yeast.
摘要:
The present invention relates to a method for selectively producing compound K and compound Y, which are originally present in ginseng in a trace amount, from saponins of ginseng, and more specifically to a method capable of obtaining desired target compounds, that is, compound K and compound Y, in high yields, by treating saponins, obtained from ginseng, with particular enzymes to structurally convert the saponins.
摘要:
Provided are a novel UDP-glycosyltransferase (uridine diphosphate glycosyltransferase) protein from Dolwoe (Gynostemma pentaphyllum) having glycosyltransfer activity for glucose linked by a glycosidic bond at the C-20 position of PPD (protopanaxadiol)-type or PPT (protopanaxatriol)-type ginsenoside, and use thereof.
摘要:
Methods for recombinant and enzymatic production of mogroside compounds and compositions containing mogroside compounds are provided by this invention.
摘要:
The invention relates to novel biocatalytic processes, comprising the whole cell reduction of dehydrocholic acid (DHCS) compounds, novel 7ß-hydroxysteroid dehydrogenase mutants, to the sequences encoding said enzyme mutants, to methods for producing the enzyme mutants and to the use thereof in enzymatic conversion of cholic acid compounds, and especially in the production of ursodeoxycholic acid (UDCS); The invention also relates to novel methods for the synthesis of UDCS using the enzyme mutants; and in particular to a further improved method for producing UDCS using recombined whole-cell biocatalysts.