The present invention relates to methods of upgrading biomass to provide useful chemical intermediates, fuels, amino acids, nutrients, etc. In particular examples, the biomass is a by-product of ethanol production and is mainly used as high-protein feed. Described herein are methods for upgrading such biomass, such as by implementing pre-treatment conditions and by employing fermentation conditions including modified organisms.

Waste gas mixtures produced and used in industry may contain harmful sulphurous compounds. The present disclosure provides a method for treatment of gas mixtures contaminated with harmful sulphurous compounds by using microorganisms capable of degrading said harmful sulphurous compounds which involves controlling nitrate levels in the medium in which microbiological conversion of harmful sulphurous compounds takes place at high levels.

The present disclosure relates to compositions and methods for producing stereoisomerically pure aminocyclopropanes.

A method for the use of a cytochrome P450 enzyme comprising any of SEQ ID NO: 1-118, or mutants thereof or a variant enzyme having at least 70% identity thereto and having CYP450 activity, for the hydroxylation and or dealkylation of an organic compound.

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An engineered microbe that contains a designed platform for the conversion of one-carbon substrates to chemical products is described. The designed platform embodies a new metabolic architecture that consolidates carbon fixation, central metabolism, and product synthesis into a single pathway. This is made possible by the key finding that 2-hydroxyacyl-CoA lyase, an enzyme in the α-oxidation pathway, is capable of catalyzing the C—C bond formation between formyl-CoA and aldehydes of different chain lengths, allowing for the elongation of the carbon backbone of said aldehyde by one-carbon units. These novel microbes present an opportunity for the production of chemicals from single-carbon feedstocks such as carbon dioxide, carbon monoxide, formate, formaldehyde, methanol or methane.

The present invention discloses a method for producing γ-aminobutyric acid (GABA) by fermentation of native strain from raw material of Sayram Ketteki, comprising the following steps: dissolving the cow's milk in the normal saline for dilution to obtain diluents with different gradients first, coating the diluents in solid media for culture respectively, isolating single colonies and storing them in a glycerin cryopreservation tube for cryopreservation respectively; next, inoculating them in liquid medium for culture respectively, and inoculating them in fermentation medium for culture for culture after activation. The content of GABA product obtained by the present invention can reach 450 μg/mL.

A method for manufacturing a functional material that contains plasmalogen, the method including treating an animal tissue containing plasmalogen with protease, and extracting the animal tissue treated with protease with an extraction liquid containing ethanol.

Disclosed herein is a method of reducing an aromatic nitro compound. In some embodiments the method comprises the step of contacting an aromatic nitro compound with a catalyst, wherein, the catalyst comprises, a disproportionation agent, and a biocatalyst. Also disclosed is a biocatalyst for use in the method, use of a disproportionation agent, and a biocatalyst, as a catalyst for reducing an aromatic nitro compound, and a kit comprising a disproportionation agent, and a biocatalyst.

Described herein are methods for the production of 4-cyano benzoic acid or salts thereof from terephthalonitrile using nitrilase as catalyst. Also described herein are compositions including 4-cyano benzoic acid.

A method for producing a chiral amine may include performing a transamination reaction of a prochiral amino acceptor and an amino donor in a first solution in the presence of a transaminase, thereby forming a chiral amine and a co-product in the first solution. The amino donor is a high molecular weight (HMW) amino donor. In some examples, the molecular weight of the HMW amino donor is at least 150 g/mol. In some examples, the amino donor is affixed on a support, the total molecular weight of the amino donor and the support being at least 150 g/mol.