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Industrial biotechnology refers to the use of enzymes or cultures of yeast, bacteria, or fungi to produce organic compounds from renewable raw materials. The goal is to replace petroleum-derived products with renewable raw materials to meet the growing demand for limited natural products.
In industrial biotechnology, the fermentation process is a key step, and industrial centrifuge machines are used for efficient separation of various fermentation products and biomass.
Fermentation processes are a crucial step in industrial biotechnology. The chemical, pharmaceutical, and food industries produce high-value products and active ingredients from bacterial, yeast, or fungal cultures through fermentation. Advanced industrial centrifuge machines are used to extract these fermentation products from the fermentation liquid (downstream processing).
In biotechnology processes, decanter centrifuges separate microorganisms from the post-fermentation liquid. Depending on the raw materials, double-cone industrial centrifuge machines are often used instead of decanter centrifuges. They combine the advantages of decanter centrifuges and disc centrifuges and are designed specifically for handling soft, flowable solids. The goal is to completely dehydrate the biomass and achieve the highest possible yield. If necessary, a disc centrifuge can be used in a second step to clarify the separated fermentation liquid, obtaining the purest liquid for subsequent processing steps, often containing valuable recoverable materials.
Fungal cultures are used to produce organic acids during fermentation. Advanced industrial centrifuge machines are used to extract these fermentation products from the fermentation liquid (downstream processing).
After fermentation, decanter centrifuges separate fungal mycelia from the fermentation liquid through multiple steps. The goal is to completely dehydrate the biomass as much as possible to maximize the yield of active ingredients. Multi-step countercurrent washing of the mycelia ensures the highest possible yield of organic acids.
Yeast microorganisms are widely used in various fermentation processes, such as the production of lactic acid, citric acid, or ethanol. Advanced industrial centrifuge machines are used to extract these fermentation products from the fermentation liquid (downstream processing).
Depending on the process, industrial centrifuge machines separate the biomass from the fermentation liquid directly or through multi-step washing. Double-cone centrifuge machines can directly dehydrate yeast cells or further dehydrate pre-concentrated yeast cells. The goal is always to dehydrate yeast cells as much as possible to achieve high yields. Subsequent spray drying or precipitation is used to obtain the target product.
Bacterial cultures, such as Escherichia coli or Bacillus subtilis, are used during fermentation to produce thickeners (e.g., xanthan gum and gellan gum), biopolymers, and vitamins. Advanced industrial centrifuge machines are used to extract these fermentation products from the fermentation liquid (downstream processing).
After fermentation, industrial centrifuge machines separate bacteria from the fermentation solution, aiming to completely dehydrate the biomass and achieve the highest possible yield of active ingredients. Double-cone centrifuge machines can attain extremely high dryness of biomass solid residues. Disc centrifuge machines clarify the separated fermentation liquid directly, or in a second step after the double-cone centrifuge, to obtain the purest liquid for subsequent processing steps. This often includes recoverable substances used to produce biopolymers, thickeners, or vitamins.