Biomanufacturing & Fermentation Technology

prasad ernala
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Welcome to Biomanufacturing & Fermentation Technology, the podcast where microbes meet manufacturing and science turns into scalable reality. In each episode, we dive inside real bioprocesses. from lab-scale experiments to commercial fermenters. to unpack how products are actually made, fixed, and optimized in the real world. Expect candid conversations on fermentation failures and breakthroughs, scale-up war stories, regulatory realities, emerging technologies, and the decisions that separate a promising culture from a profitable process. Whether you are a scientist, engineer, entrepreneur, o

  1. Predictive Quality and the Reality of Real-Time Release Testing

    HACE 22 H

    Predictive Quality and the Reality of Real-Time Release Testing

    This text explores the complex transition from predictive data science to real-time release testing (RTRT) within a regulated manufacturing environment. While digital twins and soft sensors offer the potential to reduce offline testing delays, the source emphasizes that a high-performing model is not a substitute for a validated control strategy. Successful implementation requires moving beyond simple correlations to establish rigorous lifecycle management, including drift detection, retraining protocols, and clear GxP governance. The author warns that engineers often underestimate the regulatory burden of proving sustained control and the organizational challenge of defining who owns model performance. Ultimately, transforming a predictive tool into a GMP-compliant system necessitates aligning technical innovation with the strict audit and validation expectations of quality assurance. Predictive Quality Is Triggering a Shift From Data Science to GMP Release Governance As analytics twins move from correlation to decision support, manufacturers are confronting a core reality: once a model influences quality decisions, it becomes part of the validated control strategy. Real-Time and Predictive Analytics Are Reducing Rework, Not Replacing Release Testing PAT and soft sensors are proving valuable for early deviation detection and operational control, but real-time release remains fundamentally about sustained, auditable assurance of validated conditions, not model accuracy alone. Model Lifecycle Management Has Emerged as the Central Risk in GxP AI Adoption Drift detection, retraining triggers, version control, and auditability are now recognized as first-order quality requirements, with ad hoc model updates posing direct GMP risk. Scaling Analytics Twins Exposes Hidden Failure Modes in Data Integrity and Inputs At manufacturing scale, model performance often degrades due to sensor calibration drift, sampling misalignment, and site-to-site variability, rather than changes in the biological process itself. Reduced Testing Burden Is Driving Demand for Explicit Governance, Not Fewer Controls Regulators and quality units are emphasizing that RTRT shifts where evidence is generated, not the obligation to demonstrate control, making organizational ownership and sign-off a critical unresolved challenge. #Bioprocess #ScaleUp and #TechTransfer,#Industrial #Microbiology,#MetabolicEngineering and #SystemsBiology,#Bioprocessing,#MicrobialFermentation,#Bio-manufacturing,#Industrial #Biotechnology,#Fermentation Engineering,#ProcessDevelopment,#Microbiology,#Biochemistry,#Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification,#CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes, #Biocatalyst #scientific #Scientist #Research

    18 min
  2. Upstream Digital Twins: Navigating Scale and Physical Constraints

    HACE 1 DÍA

    Upstream Digital Twins: Navigating Scale and Physical Constraints

    Upstream digital twins use soft sensors and mechanistic models to estimate metabolic states like biomass and uptake rates. At scale, physical constraints like oxygen transfer and mixing gradients can cause model failure. Success requires sensor fusion and safe MPC control. Upstream digital twins are colliding with physical reality at scale. Oxygen transfer limits, mixing gradients, and CO₂ stripping constraints are exposing optimism bias in lab-trained state estimators during manufacturing operation. Soft sensors emerged as the dominant failure point in digital twin deployment. Biomass and uptake-rate estimators degrade under probe drift, analyzer lag, and regime shifts, requiring instrument-like lifecycle governance to remain trustworthy. PAT fusion moved from signal enhancement to diagnostic logic. Conflicts between Raman, off-gas, and control actions are increasingly recognized as indicators of operational or physiological transitions rather than modeling noise. Mechanistic reactor physics proved essential for scale awareness. Twins lacking dynamic kLa, mixing heterogeneity, viscosity evolution, and CO₂ accumulation systematically overpredict safe operating space during intensified fed-batch runs. Advanced control strategies shifted from optimization to containment. MPC and hybrid AI approaches delivered value only when enforcing conservative operating envelopes with explicit degrade-to-safe behavior under constraint violation.

    22 min
  3. Biomass Separation Strategies in Microbial Fermentation

    HACE 2 DÍAS

    Biomass Separation Strategies in Microbial Fermentation

    In this episode we focus on the technical criteria for selecting biomass separation strategies in microbial fermentation, focusing on how cell morphology, broth rheology, and product localization dictate industrial success. It explains that bacterial systems often require centrifugation due to their small size and tendency to form compressible cakes, though this carries a risk of shear-induced lysis. In contrast, filamentous fungal processes rely on morphological control to manage high viscosity and ensure efficient filtration. The discussion further highlight how extracellular polymers and solids load act as critical variables that can cause membrane fouling or hydraulic failure. Ultimately, the overview emphasizes that a robust harvest strategy must balance throughput requirements with the need to minimize impurity release based on whether the desired product is intracellular or extracellular. #Bioprocess #ScaleUp and #TechTransfer, #Industrial #Microbiology, #MetabolicEngineering and #SystemsBiology, #Bioprocessing, #MicrobialFermentation, #Bio-manufacturing, #Industrial #Biotechnology, #Fermentation Engineering, #ProcessDevelopment, #Microbiology, #Biochemistry #Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification, #CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes #Biocatalyst #scientific #Scientist #Research

    19 min
  4. Circular Biomanufacturing: Waste Valorization in Integrated Production Systems

    HACE 3 DÍAS

    Circular Biomanufacturing: Waste Valorization in Integrated Production Systems

    This episode explores the transition of industrial biomanufacturing from a linear waste-heavy model to a circular system that treats side streams as valuable assets. Successful valorization requires a multidisciplinary approach combining process intensification, sophisticated separation technologies, and engineered microorganisms capable of handling inconsistent feedstocks. The discussion highlights three primary archetypes: converting agricultural residues into biopolymers, repurposing pharmaceutical waste as animal feed, and upcycling brewery grains into proteins or packaging. Ultimately, the shift toward a circular bioeconomy depends on overcoming the engineering complexity of integrating variable waste streams without compromising primary production economics. Achieving these sustainability goals requires specification alignment and a robust framework for managing the chemical heterogeneity of industrial byproducts. #Bioprocess #ScaleUp and #TechTransfer,#Industrial #Microbiology,#MetabolicEngineering and #SystemsBiology,#Bioprocessing,#MicrobialFermentation,#Bio-manufacturing,#Industrial #Biotechnology,#Fermentation Engineering,#ProcessDevelopment,#Microbiology,#Biochemistry,#Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification,#CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes, #Biocatalyst #scientific #Scientist #Research

    16 min
  5. Downstream Digital Twins: Predicting Performance and Managing Process Drift

    HACE 4 DÍAS

    Downstream Digital Twins: Predicting Performance and Managing Process Drift

    Downstream bioprocessing is often unstable due to upstream variability and equipment aging. Digital twins use mechanistic and hybrid models to predict fouling, optimize chromatography, and perform root-cause analysis, shifting DSP from reactive craft to predictive science. Downstream Digital Twins Are Shifting DSP From Reactive Firefighting to Predictive Control Mechanistic and hybrid digital twins across clarification, chromatography, and UF/DF are enabling earlier detection of fouling, breakthrough drift, and endpoint risk, before yield and schedule are lost. DSP Failures Are Rarely Single-Point Issues. Variability Chains Start Upstream and Surface Downstream Industry evidence reinforces that harvest properties such as viscosity, conductivity, solids, and impurity maps act as boundary conditions that dominate DSP performance, challenging siloed optimization models. Hybrid and Surrogate Models Are Making Mechanistic Chromatography Usable in Real Time Accelerated solvers built on mechanistic foundations are emerging as practical tools for in-run optimization and hypothesis testing, though governance gaps remain a major adoption risk. Root-Cause Analysis Is Becoming a Primary Value Driver for DSP Digital Twins Instead of post-hoc opinions, digital twins are increasingly used to test resin aging, buffer deviation, feed variability, and equipment drift in silico, supporting continued process verification and deviation investigations. Organizational Incentives, Not Technology, Are the Biggest Barrier to Co-Twin Success Without shared upstream–downstream KPIs and robust event capture, digital twins risk becoming sophisticated blame-assignment tools rather than systems that prevent variability and yield loss. #Bioprocess #ScaleUp and #TechTransfer,#Industrial #Microbiology,#MetabolicEngineering and #SystemsBiology,#Bioprocessing,#MicrobialFermentation,#Bio-manufacturing,#Industrial #Biotechnology,#Fermentation Engineering,#ProcessDevelopment,#Microbiology,#Biochemistry,#Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification,#CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes, #Biocatalyst #scientific #Scientist #Research

    15 min
  6. Microbe-Derived Therapeutics: Next-Generation Drug Discovery Through Engineered Microbial Systems

    HACE 5 DÍAS

    Microbe-Derived Therapeutics: Next-Generation Drug Discovery Through Engineered Microbial Systems

    The emergence of microbe-derived therapeutics represents a fundamental shift from traditional drug discovery toward the use of engineered biological systems as both production factories and living medicines. These sources explain how advancements in synthetic biology and genetic engineering allow microbes to synthesize complex molecules, such as insulin, or act as intelligent couriers that sense and treat disease locally within the body. Unlike static chemical drugs, these living agents must be designed for evolutionary stability and biocontainment to ensure they do not mutate or persist unintentionally. The literature emphasizes that while AI and CRISPR accelerate the design of these systems, success depends on managing the metabolic burden placed on the host cell and navigating unique regulatory and safety hurdles. Ultimately, the field is moving toward a model where functional complexity is encoded directly into genetic programs, offering new solutions for targets that are unreachable by conventional small molecules. #Bioprocess #ScaleUp and #TechTransfer,#Industrial #Microbiology,#MetabolicEngineering and #SystemsBiology,#Bioprocessing,#MicrobialFermentation,#Bio-manufacturing,#Industrial #Biotechnology,#Fermentation Engineering,#ProcessDevelopment,#Microbiology,#Biochemistry,#Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification,#CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes, #Biocatalyst #scientific #Scientist #Research

    17 min
  7. Bio-manufacturing and Fermentation Technology. (2026 February first week edition)

    HACE 6 DÍAS

    Bio-manufacturing and Fermentation Technology. (2026 February first week edition)

    Across microbial fermentation and bio-catalysis, new data is forcing us to rethink where cost curves bend, where scale-up really fails, and where regulation is no longer the bottleneck we thought it was. If you are designing strains, scaling reactors, running manufacturing campaigns, or deciding where to place your next technical bet, this week’s signals matter. Upstream: B. licheniformis OP16‑2 converts untreated corn steep water to lactic acid under thermo‑alkaline conditions without nutrient supplementation, challenging the “must‑sterilize + must‑supplement” assumption. Scale reality: At industrial volume, spatial gradients and high shear can collapse uptake/viability and cascade into DSP fouling—robust operating points often beat “optimal” lab settings. Infrastructure signal: BioMADE is building shared pilot capacity (up to 10,000‑L fermenters plus downstream) to de‑risk scale-up for many teams without each one funding full CAPEX. Contrarian (boardroom): “Cell‑free scales universally” is constrained by mass‑balance/energy economics at larger volumes, so it tends to fit niche high‑value use cases or hybrid workflows rather than bulk commodities. Governance: FDA’s Jan 2025 draft guidance formalizes a risk‑based credibility framework for using AI model outputs in regulatory decision‑making for drugs/biologics, making data/validation strategy a competitive lever. References: 1.       Selim,M.T., Salem, S.S., El-Belely, E.F. et al. Nutrient-free biorefinery of corn steepwater into lactic acid by Bacillus licheniformis OP16-2 under thermo-alkaline conditions witha pilot-scale assessment. Sci Rep 16, 4357 (2026).https://doi.org/10.1038/s41598-026-35828-4 ​#Bioprocess #ScaleUp and #TechTransfer,#Industrial #Microbiology,#MetabolicEngineering and #SystemsBiology,#Bioprocessing,#MicrobialFermentation,#Bio-manufacturing,#Industrial #Biotechnology,#Fermentation Engineering,#ProcessDevelopment,#Microbiology,#Biochemistry,#Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification,#CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes, #Biocatalyst #scientific #Scientist #Research

    11 min
  8. Risk Allocation in Industrial Microbial Biomass Separation

    5 FEB

    Risk Allocation in Industrial Microbial Biomass Separation

    The primary focus of this episode is to explore a framework for managing biomass separation in industrial microbial manufacturing, framing it as a strategic exercise in risk allocation rather than simple efficiency maximization. It evaluates the physical and economic trade-offs between centrifugation, which carries risks related to mechanical shear and impurity propagation, and filtration, which is bounded by fouling kinetics and consumable costs. The discussion emphasize that industrial robustness is determined by coupled variables like particle population dynamics and hydrodynamics, where failures often manifest as reduced downstream capacity or increased downtime. To mitigate these risks, the text advocates for hybrid separation trains that distribute the burden of clarifying complex broths across multiple stages to ensure process stability. Ultimately, the documentation suggests using predictive monitoring, such as tracking pressure rise rates and turbidity slopes, to maintain predictable performance across large-scale production campaigns. #Bioprocess #ScaleUp and #TechTransfer, #Industrial #Microbiology, #MetabolicEngineering and #SystemsBiology, #Bioprocessing, #MicrobialFermentation, #Bio-manufacturing, #Industrial #Biotechnology, #Fermentation Engineering, #ProcessDevelopment, #Microbiology, #Biochemistry #Biochemical Engineering, #Applied #MicrobialPhysiology, #Microbial #ProcessEngineering, #Upstream #BioprocessDevelopment, #Downstream Processing and #Purification, #CellCulture and #MicrobialSystems Engineering, #Bioreaction #Enzymes #Biocatalyst #scientific #Scientist #Research

    19 min
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Welcome to Biomanufacturing & Fermentation Technology, the podcast where microbes meet manufacturing and science turns into scalable reality. In each episode, we dive inside real bioprocesses. from lab-scale experiments to commercial fermenters. to unpack how products are actually made, fixed, and optimized in the real world. Expect candid conversations on fermentation failures and breakthroughs, scale-up war stories, regulatory realities, emerging technologies, and the decisions that separate a promising culture from a profitable process. Whether you are a scientist, engineer, entrepreneur, o

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