C12P15/00

Fermentation methods for producing steviol glycosides with multi-phase feeding

Disclosed are methods for producing steviol glycosides, such as rebaudioside D and rebaudioside M, using engineered yeast. The methods include at least two phases: first and second phases where a glucose-containing feed composition is provided to the medium in different modes of feeding in each phase, such as variable feeding and then constant feeding. The two phase feeding can result in a growth rate that is slower in the second phase than in the first phase, and consequently increased steviol glycoside production rates, reduced fermentation times, and reduced biomass concentrations.

Fermentation methods for producing steviol glycosides with multi-phase feeding

Disclosed are methods for producing steviol glycosides, such as rebaudioside D and rebaudioside M, using engineered yeast. The methods include at least two phases: first and second phases where a glucose-containing feed composition is provided to the medium in different modes of feeding in each phase, such as variable feeding and then constant feeding. The two phase feeding can result in a growth rate that is slower in the second phase than in the first phase, and consequently increased steviol glycoside production rates, reduced fermentation times, and reduced biomass concentrations.

Fermentation Methods for Producing Steviol Glycosides with Multi-Phase Feeding
20220154230 · 2022-05-19 ·

Disclosed are methods for producing steviol glycosides, such as rebaudioside D and rebaudioside M, using engineered yeast. The methods include at least two phases: first and second phases where a glucose-containing feed composition is provided to the medium in different modes of feeding in each phase, such as variable feeding and then constant feeding. The two phase feeding can result in a growth rate that is slower in the second phase than in the first phase, and consequently increased steviol glycoside production rates, reduced fermentation times, and reduced biomass concentrations.

Fermentation Methods for Producing Steviol Glycosides with Multi-Phase Feeding
20220154230 · 2022-05-19 ·

Disclosed are methods for producing steviol glycosides, such as rebaudioside D and rebaudioside M, using engineered yeast. The methods include at least two phases: first and second phases where a glucose-containing feed composition is provided to the medium in different modes of feeding in each phase, such as variable feeding and then constant feeding. The two phase feeding can result in a growth rate that is slower in the second phase than in the first phase, and consequently increased steviol glycoside production rates, reduced fermentation times, and reduced biomass concentrations.

METHOD FOR PRODUCING A COMPOSITION COMPRISING A 3-O-p-COUMAROYL ESTER OF TORMENTIC ACID FROM A PLANT CELL CULTURE, APPLICATIONS THEREOF AS ANTIPARASITIC AGENT FOR THE TREATMENT OF TRYPANOSOMIASIS

The present invention relates to a method for the production of a (poly)hydroxylated pentacyclic triterpene composition including a 3-O-p-coumaroyl ester of tormentic acid from a plant suspension cell culture, to a pharmaceutical composition comprising at least 3-O-p-coumaroyl ester of tormentic acid for a use in the prevention and/or the treatment of trypanosomiasis, optionally in admixture with other (poly)hydroxylated pentacyclic triterpenes, and to 3-O-p-coumaroyl ester of tormentic acid for its use as an antiparasitic agent for the prevention and/or the treatment of trypanosomiasis, optionally in admixture with other (poly)hydroxylated pentacyclic triterpenes.

METHOD FOR PRODUCING A COMPOSITION COMPRISING A 3-O-p-COUMAROYL ESTER OF TORMENTIC ACID FROM A PLANT CELL CULTURE, APPLICATIONS THEREOF AS ANTIPARASITIC AGENT FOR THE TREATMENT OF TRYPANOSOMIASIS

The present invention relates to a method for the production of a (poly)hydroxylated pentacyclic triterpene composition including a 3-O-p-coumaroyl ester of tormentic acid from a plant suspension cell culture, to a pharmaceutical composition comprising at least 3-O-p-coumaroyl ester of tormentic acid for a use in the prevention and/or the treatment of trypanosomiasis, optionally in admixture with other (poly)hydroxylated pentacyclic triterpenes, and to 3-O-p-coumaroyl ester of tormentic acid for its use as an antiparasitic agent for the prevention and/or the treatment of trypanosomiasis, optionally in admixture with other (poly)hydroxylated pentacyclic triterpenes.

Engineered biocatalysts and methods for synthesizing chiral amines

The present disclosure provides engineered transaminase polypeptides for the production of amines, polynucleotides encoding the engineered transaminases, host cells capable of expressing the engineered transaminases, and methods of using the engineered transaminases to prepare compounds useful in the production of active pharmaceutical agents.

Engineered biocatalysts and methods for synthesizing chiral amines

The present disclosure provides engineered transaminase polypeptides for the production of amines, polynucleotides encoding the engineered transaminases, host cells capable of expressing the engineered transaminases, and methods of using the engineered transaminases to prepare compounds useful in the production of active pharmaceutical agents.

Viridiflorol production in auxotrophic <i>Escherichia coli</i>

A method of increasing terpenoid production in a host cell that produces one or more terpenoids, comprising: a) providing a host cell that produces one or more terpenoids, said host cell comprising a vector comprising a polynucleotide sequence encoding a terpene synthase enzyme; b) modifying the vector to: i. introduce an inducible promoter operably linked to the polynucleotide sequence encoding the terpene synthase enzyme; and ii. introduce a polynucleotide sequence encoding a ribosomal binding site (RBS) that increases translation initiation rate of the terpenoid compared to a wild type ribosomal binding site; c) determining the dosage of an inducer capable of inducing the inducible promoter; d) culturing the host cell in a culture medium in the presence of the inducer at the dosage determined from step c); and e) isolating the terpenoid from the culture medium.

Viridiflorol production in auxotrophic <i>Escherichia coli</i>

A method of increasing terpenoid production in a host cell that produces one or more terpenoids, comprising: a) providing a host cell that produces one or more terpenoids, said host cell comprising a vector comprising a polynucleotide sequence encoding a terpene synthase enzyme; b) modifying the vector to: i. introduce an inducible promoter operably linked to the polynucleotide sequence encoding the terpene synthase enzyme; and ii. introduce a polynucleotide sequence encoding a ribosomal binding site (RBS) that increases translation initiation rate of the terpenoid compared to a wild type ribosomal binding site; c) determining the dosage of an inducer capable of inducing the inducible promoter; d) culturing the host cell in a culture medium in the presence of the inducer at the dosage determined from step c); and e) isolating the terpenoid from the culture medium.