Bioreactor systems and controlled operation of bioreactor systems are disclosed herein. The bioreactor systems can include at least one bioreactor chamber, at least one reservoir, a plurality of sensors, and a fluid circuit. The operational methods disclosed herein are directed towards growing cells or tissue while measuring various parameters, and a controlled operation of the various parameters during the operation of the bioreactor systems. The controlled operation of the parameters includes, for example, cell concentration; a rate of flow; a volume; a pH; a temperature; a level of oxygen; a level of carbon dioxide; a level of bicarbonate ion; nutrient compound; and any combination thereof.

The invention relates to systems and methods for effective production and use of microorganisms and/or the fermentation broth in which they are produced. Advantageously, the system is cost-effective, scalable, quick, versatile, efficacious, and helpful in reducing resistance to chemical compounds and residue that concerns consumers.

Methods and systems for measuring viability and function of islet cells or stem cell-derived beta cells in an implantable device featuring setting the temperature of the cells in the implantable device to a low temperature to reduce metabolic levels of the cells and reduce oxygen requirements of the cells, and measuring oxygen consumption rates. An oxygen sensor at the inlet of the implantable device and an oxygen sensor at the outlet of the implantable device are used to calculate oxygen consumption rates of the cells, which in turn are indicative of viability. The reduction in temperature can also be used for loading cells into the implantable devices to help reduce ischemic and/or physical injury. The present invention may be used with other cell types, e.g. hepatocytes, heart cells, muscle cells, etc.

The invention relates to a comparison unit (130) configured for determining if a first pH measuring device of a first tank (104; 106) is affected by a pH-measuring problem, the comparison unit being configured for: receiving a first CO2 concentration and a first pH value, the first CO2 concentration being a CO2 concentration of a first gas volume above a medium in a first tank, the first CO2 concentration and the first pH value being measured at a first time when the medium in the first tank is in pH-CO2 equilibrium state with the first gas volume and before said equilibrium state is modified by the metabolism of a cell culture in the first tank, the first pH value being a measured value provided by a first pH measuring device operatively coupled to the first tank (102); receiving a second CO2 concentration and a second pH value, the second CO2 concentration being a CO2 concentration of a second gas volume above a medium in a second tank, the second CO2 concentration and the second pH value being measured at a second time when the medium in the second tank is in pH-CO2 equilibrium state with the second gas volume and before said equilibrium state is modified by the metabolism of a cell culture, the second pH value being a measured value provided by a second pH measuring device; comparing the first and second pH values and CO2 concentrations for determining if comparing (206), by the comparison unit, the first and second pH values and comparing the first and second CO2 concentrations for determining if the first pH measuring device is affected by the pH-measuring problem.

A packed-bed bioreactor system is provided, the system including a cell culture vessel having a first end, a second end, and a reservoir between the first and second ends; and a cell culture matrix disposed in the reservoir. The cell culture matrix includes a structurally defined substrate with a plurality of interwoven fibers having surfaces for adhering cells thereto. The substrate is disposed within the reservoir in a wound configuration creating a plurality of layers of substrate in the wound configuration, and none of the plurality of layers of substrate are separated by a spacer material.

The present invention relates in a first aspect to a plug flow tubular bioreactor having an integral or multi-part tube adapted for cultivation, and, optionally, infection, viral transduction, or transfection of eukaryotic cells. In a further aspect, the present invention relates to a plug flow tubular bioreactor system comprising the plug flow tubular bioreactor according to the present invention. Further, the present invention relates to a method for preparing virus particles, vectors, cells or other molecules including toxic molecules using the plug flow tubular bioreactor or the system according to the present invention. Finally, the present invention relates to the use of a plug flow tubular bioreactor for the preparation of virus particles, vectors including viral vectors, cells including modified cells or other molecules including toxic molecules.

A cell culture matrix is provided that has a substrate with a first side, a second side opposite the first side, a thickness separating the first side and the second side, and a plurality of openings formed in the substrate and passing through the thickness of the substrate. The plurality of openings allow flow of at least one of cell culture media, cells, or cell products through the thickness of the substrate, and provides a uniform, efficient, and scalable matrix for cell seeding, proliferation, and culturing. The substrate can be formed from a woven polymer mesh material that provides a high surface area to volume ratio for cells and good fluid flow through the matrix. Bioreactor systems incorporating the cell culture matrix and related methods are also provided.

Embodiments herein are directed to methods of heterotrophically culturing a. Embodiments herein are directed to methods, systems, and bioreactors for heterotrophically culturing Euglena sp. microorganism, a Schizochytrium sp. microorganism, or a Chlorella sp. microorganism comprising: culturing the microorganism in a culture media containing one or more carbon source, one or more nitrogen source, and one or more salt; maintaining a pH of between about 2.0 to about 4.0; maintaining a temperature of about 20° C. to about 30° C.; and maintaining an environment with substantially no light; wherein the culturing occurs in three cultivation stages.

A biological component treatment system includes a biological component kit, and a biological component treatment device in which the biological component kit is set. The biological component kit includes tubes and a biological component cassette, the biological component cassette includes flow paths in the interior thereof, and is equipped with a cassette main body formed in a sheet shape that possesses flexibility. In the flow paths, there are provided target parameter detection parts that make it possible to detect parameters related to the culturing of cells, and the target parameter detection parts include chips that undergo coloring in response to a predetermined substance contained in a liquid. Further, the biological component treatment device includes optical sensors that detect parameters related to culturing of cells.

The present disclosure provides methods and systems for foam control. A method of foam control for a fermentation system comprises: obtaining image data from an imaging device located at the fermentation system; and processing said sensor data using a trained machine learning algorithm to generate an output that indicates presence of foam or level of foaming.