The disclosed technology, in some embodiments, relates to the field of photobioreactors and more particularly, to photobioreactors having improved internal illumination capabilities.

The disclosed technology, in some embodiments, relates to the field of photobioreactors and more particularly, to photobioreactors having improved internal illumination capabilities.

Provided is a method of culturing one or more microorganisms. The method includes culturing one or more microorganisms in a medium comprising crude glycerol at a first concentration level, feeding to the media an additional amount of crude glycerol, once the first concentration of glycerol is reduced to a first threshold level, at a concentration sufficient to achieve the first concentration level, monitoring the crude glycerol concentration until the first concentration level of the crude glycerol is reduced to the first threshold level. The steps may be repeated until a desired microorganism cell density is achieved.

Provided is a method of culturing one or more microorganisms. The method includes culturing one or more microorganisms in a medium comprising crude glycerol at a first concentration level, feeding to the media an additional amount of crude glycerol, once the first concentration of glycerol is reduced to a first threshold level, at a concentration sufficient to achieve the first concentration level, monitoring the crude glycerol concentration until the first concentration level of the crude glycerol is reduced to the first threshold level. The steps may be repeated until a desired microorganism cell density is achieved.

According to the present invention, there are provided a chamber for transplantation which has a high durability, and in which an enclosed biological constituent can be maintained for a long period of time because an interior space thereof is efficiently secured; and a method for manufacturing the chamber for transplantation. The chamber for transplantation includes one or more membranes for immunoisolation at a boundary between an inside and an outside of the chamber for transplantation, in which all of the membranes for immunoisolation include a porous membrane containing a polymer, and a joint portion at which the porous membranes are directly fusion welded to each other is provided. The method for manufacturing a chamber for transplantation includes preparing one or more porous membranes containing a polymer selected from polysulfone and polyethersulfone, bringing one part of the porous membrane into direct contact with another part of the porous membrane, and performing a heat fusion welding of the two parts that are in direct contact with each other at a temperature which is a glass transition temperature of the polymer or higher and lower than a melting point of the polymer.

Culturing S. glucoliberatum PABB004 under conditions effective for the S. glucoliberatum PABB004 to secrete simple sugars into culture medium. In one or more embodiments, the conditions include a pH of 6.0 to 8.5. In some cases, the culture can include a second organism. A co-culture includes S. glucoliberatum PABB004 and a second organism, wherein the co-culture has a pH of 6.0 or greater. In one or more embodiments, the second organism is selected to produce a product of interest such as, for example, ethanol.

A photobioreactor for cultivation and/or propagation of a photosynthetic organism and associated systems/methods are disclosed herewith. The photobioreactor includes (1) a substantially spherical vessel having a wall defining an interior vessel volume; (2) a water-submersible system for converting electrical energy into electromagnetic radiation; (3) a temperature management system for circulating heat dispersal fluid into and out of the water-submersible system; and (4) a photobioreactor control system comprising a processor and a controller.

A photobioreactor for cultivation and/or propagation of a photosynthetic organism and associated systems/methods are disclosed herewith. The photobioreactor includes (1) a substantially spherical vessel having a wall defining an interior vessel volume; (2) a water-submersible system for converting electrical energy into electromagnetic radiation; (3) a temperature management system for circulating heat dispersal fluid into and out of the water-submersible system; and (4) a photobioreactor control system comprising a processor and a controller.

Processes are disclosed for photosynthetic cyanobacterial production of selected proteins and biochemicals within an evolving alkaliphilic microbial consortium.

The present invention relates to a process for enriching a biomass of microalgae of the Thraustochytrium genus with DHA and with arginine and glutamic acid amino acids, characterized in that it comprises a step aimed at limiting the rate of growth of the microalga while at the same time maintaining or continuously introducing a source of nitrogen in or into the fermentation medium.