Liquid Dosage
Bacteria Cultures
A fermentation starter or starter culture is a preparation that’s used to kick-start the fermentation process in a number of diverse industries, from food & renewables to biotechnology and pharmaceutical.
In the pharmaceutical industry, bacteria are used to produce antibiotics, vaccines and medically useful enzymes. The biotechnology industry uses bacterial cells for the production of biological substances that are useful to human existence, including fuels, foods, medicines, hormones, enzymes, proteins and nucleic acids, resulting in the development of human hormones such as insulin, enzymes such as streptokinase, and human proteins such as interferon and tumor necrosis factor. These products are used for the treatment of a various medical conditions and diseases, including diabetes, heart attack, tuberculosis, AIDS and SLE (lupus).
Cultivation, Processing, Harvesting
Starter cultures are derived from undefined, empirically produced species to attain an end-product with predictable and reproducible quality and quantity characteristics. The production of starter cultures can be divided into two sections.
After fermentation, the bacteria must be processed and separated from the fermentation solution, comprising the cultured micro-organisms and the remainder of the nutrient solution. First, the bacteria are separated from the liquid phase and concentrated: nozzle and self-cleaning steam-sterilizable disc separators are available for this step of the process.
The concentrated culture is then transferred to a freeze dryer (lyophilizer) and dried. Finally, the cultures are packaged under airtight conditions and stored at low temperatures.
Aseptic Processing
The careful treatment of the active culture, sterility and high separation efficiencies are prerequisites for the economical, reliable and efficient processing of bacterial starter cultures. As such, separators from GEA are equipped with hydrohermetic product feed systems that minimize the shear forces experienced when the product enters the bowl, which maintains the viability of the cells.
Products & Technologies
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Aseptic valves & components
Aseptic valves face exceptionally high demands within UltraClean and Aseptic processes. You can be assured that they all provide highest quality in terms of hygienic design and sustainability.
Centrifugal Separator
GEA separators are designed for liquid-based applications. Using centrifugal force, they are used for separating suspensions consisting of two or more phases of different densities, i.e. they can be used for liquid-liquid separation, for liquid-liquid-solid separation or for liquid-solid separation. They are equally as effective at separating liq...
CIP/SIP Solutions
Innovative CIP concepts of GEA meet comprehensive high standards. Our experts guarantee product safety at every point of the process. Every upgrade is adapted to individual local conditions and customer requirements and leads to noticeable savings.
Homogenizer Compression Block
GEA compression heads are the homogenizer pulsing core since they activate the homogenization process pumping the product at high pressure until it flows inside the homogenizing valve.
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GEA Insights
A new recipe for indulgence
What if your favorite chocolate didn’t require cocoa beans and your coffee was locally produced? As climate disruption, price hikes and ethical concerns hit two of our most beloved indulgences, scientists are reimagining how we produce them – using microbes, not monocultures. The goal: preserve the flavor and properties of coffee and chocolate while minimizing carbon emissions and improving food resilience.
Fueling the circular economy in shipping
Ports now compete not just on logistics, but on sustainability. At Greece’s Piraeus port, an advanced processing and recovery facility recycles ship waste oil into fuel. Equipped with GEA’s high-performance centrifuges, it sets a new benchmark for state-of-the-art, environmentally responsible port operations.
Closing the loop: key lessons for breweries from OeTTINGER
The 2022 CO2 shortage forced breweries to review their dependency on global supply chains. Many were forced to close, unable to carbonate their products. At its breweries in Germany, OeTTINGER GETRÄNKE is turning its own CO2 into a powerful lever for independence and sustainability – with the help of CO2 recovery technology from GEA.
