Structured food compositions, such as meat analogue compositions, which include protein products from microorganisms, such as microorganism-derived protein hydrolysates, are described. Methods of making such products are also described.

Microorganisms and bioprocesses are provided that convert gaseous substrates, such as renewable H.sub.2 and waste CO.sub.2 producer gas, or syngas into high-protein biomass that may be used directly for human nutrition, or as a nutrient for plants, fungi, or other microorganisms, or as a source of soil carbon, nitrogen, and other mineral nutrients. Renewable H.sub.2 used in the processes described herein may be generated by electrolysis using solar or wind power. Producer gas used in the processes described herein may be derived from sources that include gasification of waste feedstock and/or biomass residue, waste gas from industrial processes, or natural gas, biogas, or landfill gas.

Provided herein are compositions and processes for producing compositions from an algae that overproduces protoporphyrin IX (PPIX). Also provided are methods of growing PPIX overproducing algae, methods of isolating PPIX-containing portions from algae cultures and compositions and methods of making food products with PPIX produced by algae. Provided herein are strains and methods to select strains that overproduce PPIX. Also provided are compositions, including edible compositions that include PPIX produced from algae. Specifically, the algal strain over-producing PPIX is an engineered strain of The algal biomass may be used for preparing meat analogues wherein the PPIX compound imparts a meat-like colour and flavour.

Provided herein are compositions and processes for producing compositions from an algae that overproduces protoporphyrin IX (PPIX). Also provided are methods of growing PPIX overproducing algae, methods of isolating PPIX-containing portions from algae cultures and compositions and methods of making food products with PPIX produced by algae. Provided herein are strains and methods to select strains that overproduce PPIX. Also provided are compositions, including edible compositions that include PPIX produced from algae. Specifically, the algal strain over-producing PPIX is an engineered strain of The algal biomass may be used for preparing meat analogues wherein the PPIX compound imparts a meat-like colour and flavour.

Methods of production of edible filamentous fungal biomat formulations are provided as standalone protein sources and/or protein ingredients in foodstuffs as well as a one-time use or repeated use self-contained biomat reactor comprising a container with at least one compartment and placed within the compartment(s), a feedstock, a fungal inoculum, a gas-permeable membrane, and optionally a liquid nutrient medium.

Methods of production of edible filamentous fungal biomat formulations are provided as standalone protein sources and/or protein ingredients in foodstuffs as well as a one-time use or repeated use self-contained biomat reactor comprising a container with at least one compartment and placed within the compartment(s), a feedstock, a fungal inoculum, a gas-permeable membrane, and optionally a liquid nutrient medium.

A method for using peptides for flavorings is described. The method includes, at least, obtaining a microalgae, extracting chlorella protein from the microalgae, modifying a factor associated with the chlorella protein to change an amino acid combination of the chlorella protein, and identifying a peptide flavoring associated with the modified amino acid combination.

A method for using peptides for flavorings is described. The method includes, at least, obtaining a microalgae, extracting chlorella protein from the microalgae, modifying a factor associated with the chlorella protein to change an amino acid combination of the chlorella protein, and identifying a peptide flavoring associated with the modified amino acid combination.

According to exemplary embodiments, provided herein are methods for nutrient fortification, including determining a nutrient profile for a first food product, modeling a micronutrient profile based on the nutrient profile, culturing yeast in the micronutrient profile and applying the cultured yeast to a second food product.

The present disclosure provides a composition comprising, (i) protein at a protein content of at least about 16% by dry weight, wherein at least about 50% by dry weight of the protein has an amino acid sequence encoded by one or more fungal genomes, and (ii) one or more materials selected from the group consisting of a flour, an oil, a flavoring agent, and a nutritional supplement, wherein the composition has a water content that is less than or equal to about 30% water by weight.