The disclosure relates to the field of specialty chemicals and methods for their synthesis. In embodiments, the disclosure provides viable bacterial cells which comprise heterologous dual 3-hydroxy-acyl-ACP dehydratase/isomerases, etc. The disclosure further provides monounsaturated fatty acid derivative molecules produced by the viable bacterial cells which are non-native to the bacterial cells. The disclosure further provides methods for the preparation and production of non-native monounsaturated fatty acid derivative molecules such as e.g., an 3-monounsaturated fatty acid derivative, an 5-monounsaturated fatty acid derivative, an 9-monounsaturated fatty acid derivative, an 11-monounsaturated fatty acid fatty acid derivative, etc.

The present specification relates to a microorganism into which a GPD gene, a GPP gene, and dhaB, gdrAB, aldH and/or yqhD genes are introduced, and/or use thereof, the microorganism being capable of simultaneously producing 1,3-PDO and 3-HP.

Provided herein are recombinant microorganisms that express a subject polypeptide. Microorganisms can comprise an expression construct comprising a flagellin promoter operatively linked with a heterologous nucleotide sequence encoding the subject polypeptide. The flagellin promoter sequence can comprise a genetic modification that reduces CsrA inhibition of translation. Microorganisms also can comprise a genetic modification that reduces FlgM inhibition of SigD initiation of transcription. The target polypeptide can be an aldehyde dehydrogenase. Such microorganisms are useful in the treatment of alcohol hangover.

Food or pharmaceutical compositions for improving behavior and motor function and to pharmaceutical composition for inhibiting or preventing Parkinson's disease, containing an aldehyde dehydrogenase encoded by a gene having more than 98% homology to the gene of SEQ ID NO: 1, encoded by the gene of SEQ ID NO: 1 including SEQ ID NO: 2, which is contained in lysate of any one or a mixture thereof selected from Saccharomyces cerevisiae, KCTC13925BP, KCTC14122BP, KCTC14123BP, KCTC14983BP, KCTC14984BP and KCTC14985BP.

An enzymatic process and system are disclosed for producing bioplastic polymers from a thermoplastic polymer-containing post-use product. The thermoplastic polymer-containing post-use product can be pyrolyzed to obtain a pool of depolymerized alkanes. The pool of alkanes can be contacted in vitro with an enzyme or a mixture of enzymes to produce a bioplastic polymer.

Disclosed herein are methods for enhancing an immune response in an individual in need thereof. The methods, in certain aspects, may comprise administering bacterial aldehyde dehydrogenase, a bacteria that produces aldehyde dehydrogenase, or combinations thereof to an individual. Further disclosed are compositions, such as nutritional compositions, which may comprise bacterial aldehyde dehydrogenase, a bacteria that produces aldehyde dehydrogenase, or combinations thereof.