From shaker to fermenter, a methanol-free Pichia pastoris protein production workflow

5 Sept 2025

Pichia pastoris is widely employed for producing recombinant proteins. Traditional systems depend on methanol-inducible promoters like PAOX1, which pose safety concerns due to methanol’s flammable nature.

Find out more about a new strain of P. pastoris that carries a glycerol-inducible promoter, pUPP, that enables safe, methanol-free expression of proteins under glycerol feeding for high‑density fed‑batch fermentation.

Eppendorf BioFlo® 320

Eppendorf

 The BioFlo 320 seamlessly blends beauty and utility in one all-inclusive package. A new industrial design, flexibility between interchangeable autoclavable and single-use vessels, intelligent sensors, Ethernet connectivity, and a new software package are only a few of the features that set it apart from the competition

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Eppendorf BioFlo® 120

Eppendorf

The Eppendorf BioFlo 120 offers simplicity and ease of use, without sacrificing capability. In academic, governmental or industrial research settings; for work with bacteria, yeast, fungi, mammalian, insect or plant cells: The BioFlo 120 is an attractive solution to meet bioprocessing needs. The BioFlo 120 is a bench-scale bioreactor/fermentor system that perfectly suits research and development. Its flexible design meets the wide-ranging needs of scientists in both microbial and cell culture applications. 24 interchangeable autoclavable vessels (water-jacketed or with heat blanket) are available, along with BioBLU® single-use bioreactors ranging from 250 mL to 40 L working volume. Digital Mettler Toledo® ISM sensor technology is fully integrated allowing the user to switch between pH, redox, dissolved oxygen (polarographic and/or optical), and carbon dioxide monitoring without the need for additional equipment. A high-precision thermal mass flow controller with expanded range provides the capability for low flow mammalian cell culture through high-demand microbial processes on a single control station.   Features: Scale-up from 250 mL to 40 L on a wide variety of autoclavable and single-use vessels New Auto culture modes for microbial and cell culture process control at the touch of a button. Universal connections for analog sensors or digital Mettler Toledo ISM sensors for increased flexibility Applications: Cultivation of mammalian, stem, insect, and plant cells Bacterial, yeast, and fungal fermentation Batch, fed-batch, continuous or perfusion

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Protein ExpressionProtein expression is the utilization of cell machinery for the synthesis of proteins and has become a critical tool in biotherapeutic, genomic, and proteomic research. Produce recombinant proteins with expression vectors in combination with a host cell suitable for high-level protein expression. For production of toxic proteins, consider cell-free expression vectors. Create and monitor post-translational modifications with protein modification kits. Find the best protein expression products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Bioprocessing / FermentationBioprocessing is the use of biological materials to perform commercial, scientific or medical research processes. Biological materials used include cells, enzymes and organisms. Usually bioprocessing requires a batch or continuous bioreactor such as a fermentor or cell culture system. The advantages of using a reactor include high productivity, easy configuration, adjustable values and automation.Cell / Tissue CultureCell culture or tissue culture is used to study the biology of cells or tissues and to isolate cellular products in an environment which can be manipulated and well defined. Accurately control your culture environment with bioreactors or culture incubators, bind your cells to a surface or together with an extracellular matrix. Distinguish cell types with differential media or proliferate cells with certain characteristics using selective media. Enrich your media with supplements such as growth factors, sera and vitamins. Find the best cell and tissue culture products, kits and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Bioreactor
From shaker to fermenter, a methanol-free Pichia pastoris protein production workflow