The present disclosure relates to processes for desulfurizing hydrocarbon feedstocks. The processes may include introducing a feedstock comprising hydrogen sulfide to an absorber comprising a metal chelate to form a reduced metal chelate. The processes may further include introducing the reduced metal chelate to a photobioreactor comprising a phototrophic bacterium. The present disclosure also relates to apparatuses for desulfurizing hydrocarbon feedstock. An apparatus may include and absorber and a photobioreactor fluidly connected to the absorber. The photobioreactor may be an anaerobic vessel with a light source.

Metabolically-engineered yeast strains are provided. such as metabolically-engineered Saccharomyces cerevisiaestrains. producing high amounts of at least one. preferably all four natural cytokinins: trans-zeatin (tZ), trans-zeatin riboside (tZR). isopentenyladenine (iP) and isopenteny ladenine riboside (iPR).

The present invention provides genetically engineered host organisms capable of producing terpenoids. The present invention also relates terpenoids obtained from such genetically engineered organisms. Examples of the produced terpenoids include carotenoids, ionones, abienol, and other isoprenoid derived compounds. In addition, the invention relates to a methods of for the preparation of terpenoids using such a genetically engineered organism.

The present invention relates to a recombinant host capable of producing a steviol glycoside comprising a recombinant nucleic acid sequence encoding a polypeptide having geranylgeranyl pyrophosphate (GGPP) synthase activity which comprises the amino acid sequence set forth in SEQ ID NO: 1 or an amino acid sequence having at least about 45% sequence identity thereto.

Aspects of the disclosure relate to biosynthesis of cannabinoids and cannabinoid precursors in recombinant cells and in vitro.

Methods of making and using E,Z,E-GGPP are provided. Also provided are expression cassettes encoding isoprenyl diphosphate synthases, e.g., cis- or trans-isoprenyl diphosphate synthases.

An enzymatically catalyzed method for producing L-glufosinate or a phosphoester of L-glufosinate can be performed. An activated L-homoserine H.sub.A is reacted with a substrate S selected from methylphosphinic acid and the esters of methylphosphinic acid. The method makes accessible new substrates in the enzymatic production of L-glufosinate and its phosphoesters.

Disclosed are novel multi-substituent psilocybin derivative compounds and pharmaceutical and recreational drug formulations containing the same. The compounds may be produced by reacting a reactant psilocybin derivative with a substituent containing compound.

The present invention relates to compositions and methods of producing carotenoids and carotenoid derivatives.

Exemplary embodiments provided herein include genetically engineering microorganisms, such as yeast or bacteria, to produce cannabinoids by inserting genes that produce the appropriate enzymes for the metabolic production of a desired compound.