In an embodiment, the present disclosure pertains to an oleaginous bacterium. In some embodiments, the oleaginous bacterium includes lipids and at least one exogenous and inducible gene. In some embodiments, the exogenous and inducible gene encodes at least one protein capable of inducing lysis in the oleaginous bacterium to release the lipids. In an addition embodiment, the present disclosure pertains to a method of releasing lipids into an environment. In general, the method includes one or more of the following steps of: (1) introducing at least one oleaginous bacterium of the present disclosure to the environment; and (2) inducing expression of at least one exogenous gene in the oleaginous bacterium to thereby induce the expression of at least one protein. In some embodiments, the protein facilitates the lysis of the oleaginous bacterium and release of the lipids into the environment.

The present invention provides isolated acidophilic Fusarium oxysporum strains, such as MK7, and their progeny, compositions comprising such strains and their progeny, methods of producing such strains and their progeny, and methods of using such strains and their progeny.

The present description is related to the field of cultivating algae. It introduces a method of cultivating algae by depleting the culture of an inorganic nutrient and exposing the alga to high intensity light to obtain algal cell mass having enriched lipid content and reduced chlorophyll content.

The present description is related to the field of cultivating algae. It introduces a method of cultivating algae by depleting the culture of an inorganic nutrient and exposing the alga to high intensity light to obtain algal cell mass having enriched lipid content and reduced chlorophyll content.

The invention provides methods and systems for the production of lipid products from a gaseous substrate using a two stage fermentation process. The method comprises providing a gaseous substrate comprising CO, CO.sub.2 and H.sub.2 or mixtures thereof, to a first bioreactor containing a culture or one or more microorganisms, and fermenting the substrate to produce a product comprising acetate. The acetate from the first bioreactor is then provided to a second bioreactor, where it is used as a substrate for fermentation to lipids by one or more yeasts.

The invention features plant acyl-ACP thioesterase genes of the FatB class and proteins encoded by these genes. The genes are useful for constructing recombinant host cells having altered fatty acid profiles. Oleaginous microalga host cells with the new genes or previously identified FatB genes are disclosed. The microalgae cells produce triglycerides with useful fatty acid profiles.

Genetically engineered cells and microorganisms are provided that produce fatty alcohols from the fatty acid biosynthetic pathway, as well as methods of their use.

Provided herein are methods of recovering oil from microorganisms. The methods are useful, for example, in obtaining nutritional oils and/or lipid biofuels. The methods of recovering oil described herein include contacting a population of microorganisms with one or more enzymes under conditions that cause disruption of the microorganisms, concentrating the disrupted microorganisms, and extracting lipids from the disrupted microorganisms at high temperature in the presence of a salt and in the absence of solvent.

Microbiome compositions and uses thereof. The microbiome compositions include a set of microbes. The sets of microbes contain members of Lactobacillaceae, Eubacteriaceae, Lachnospiraceae, and Coriobacteriaceae. The number of individual physical microbes in the set constitutes a certain percentage of the total number of individual physical microbes in the microbiome composition. The microbiome compositions can be used for producing medium-chain fatty acids from organic substrates through anaerobic fermentation in a medium. The medium can include lignocellulosic stillage.

The present invention provides a method for extracting lipids from microorganisms without using organic solvent as an extraction solvent. In particular, the present invention provides a method for extracting lipids from microorganisms by lysing cells and removing water soluble compound and/or materials by washing the lysed cell mixtures with aqueous washing solutions until a substantially non-emulsified lipid is obtained.