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Process Raman Analyzers for Food and Beverage Production
Transforming Food and Beverage Analysis with Raman Technology
HORIBA Process Instruments offers inline, real-time Process Raman spectroscopy solutions for monitoring critical quality and composition parameters in food and beverage production. Our Process Raman analyzers measure directly in the process stream, replacing time-delayed laboratory methods and the limitations of conventional near-infrared (NIR) spectroscopy with continuous, actionable data.
Your Simple, Cost-efficient Turnkey Solution
At HORIBA Process Instruments, we understand the unique demands of your industry. Our cutting-edge solutions are designed to deliver accurate, real-time insights for process optimization, safety, and compliance. From oil and gas to pharmaceuticals and beyond, we provide reliable tools that empower you to monitor critical parameters, reduce operational costs, and improve product quality.
The Challenge with Food and Beverage Quality Monitoring
Maintaining consistent product quality in food and beverage production requires accurate, continuous measurement of chemical composition at multiple stages of the process. Fat content, protein levels, sugar concentration, ethanol, and moisture are just a few of the parameters that directly affect product quality, labeling compliance, and process efficiency. Small deviations in these values can result in off-spec batches, wasted inputs, or regulatory risk.
Most production facilities currently rely on one of two approaches:
- Periodic grab samples sent to an onsite laboratory
- Near-infrared (NIR) spectroscopy installed in-line.
Both approaches have meaningful limitations.
Laboratory-based analysis introduces lag time between sample collection and results. In a continuous production environment, process conditions can shift significantly in the time it takes to receive and act on a lab result. This delay limits the ability to make real-time corrections and increases the risk of producing off-spec product before the issue is identified.
NIR spectroscopy is widely used in food and beverage applications, but it has technical limitations that affect measurement accuracy in certain matrices. Water absorbs strongly in the near-infrared region, which can mask signals from dissolved components and reduce sensitivity in aqueous or high-moisture products. NIR also struggles to differentiate between chemically similar compounds in complex matrices, and it requires careful calibration maintenance when product formulations change.
Using Process Raman for Food and Beverage Manufacturing
Raman spectroscopy offers a distinct set of technical advantages in food and beverage environments, particularly in applications where aqueous matrices, complex mixtures, or trace-level measurements are involved.
One of the practical advantages is that water produces a weak Raman scattering signal. Unlike NIR, where water absorbs strongly and can obscure measurements of dissolved components, Raman systems are largely unaffected by water content. This makes Raman well-suited for measuring dissolved sugars, ethanol, acids, and other components in beverages, dairy products, and fermentation streams without requiring sample extraction or dilution.
Key technical advantages for food and beverage monitoring include:
- Inline, non-invasive measurement: The Raman probe can be interfaced directly with the process stream through a sapphire window. No reagents, no sample conditioning, and a no contact option between the analyzer optics and the product.
- Simultaneous multi-component analysis: Our software can measure multiple parameters, such as sugar concentration, ethanol content, and acidity indicators, in a single spectral acquisition.
- Minimal sensitivity to water interference: Raman spectroscopy performs reliably in high-moisture and aqueous product streams where NIR accuracy degrades.
- Long fiber optic cable lengths: HORIBA's systems support fiber optic cable runs of up to 350 meters (approximately 1,000 feet), allowing the analyzer to be located in a control room or safe area while the probe is positioned at a remote process point on the production floor.
- Intrinsically safe probe design: Only light travels through the fiber optic cable. There are no electrical connections at the probe head.
- Real-time output for process control: Results are available continuously and can be integrated directly into distributed control systems (DCS) via Modbus, OPC, or Ethernet protocols, enabling automated process adjustments based on actual composition data.
Applications in Food and Beverage Production
HORIBA Process Raman analyzers can be deployed across a range of food and beverage production environments.
Beverage Production
Sugar concentration, ethanol content, and acid levels are central quality parameters for nearly every beverage category, from soft drinks and juices to wine, beer, and spirits. Continuous inline measurement at the process point allows production teams to respond to deviations immediately.
Measurable parameters include:
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Sugar concentration
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Ethanol content
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Acid levels
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Carbonation-related compositional indicators
Dairy Products
Fat, protein, and moisture content must be tightly controlled across batches for products such as milk, cream, cheese, and powdered dairy ingredients. Inline Process Raman monitoring provides continuous quality data without disrupting production flow or introducing contamination risk.
Measurable parameters include:
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Fat content
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Protein levels
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Moisture content
Fermentation Monitoring
Fermentation is a dynamic process in which chemical composition changes continuously throughout the batch. Real-time composition data supports more precise endpoint determination, reduces the risk of over- or under-fermentation, and improves batch-to-batch consistency.
Measurable parameters include:
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Ethanol concentration
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Residual sugar content
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Organic acid levels
Edible Oils and Fats
Raman spectroscopy provides strong spectral differentiation of fatty acid chain structures, making it well-suited for composition monitoring in cooking oils, specialty fats, and blended lipid products across processing, refining, and blending operations.
Measurable parameters include:
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Fatty acid composition
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Degree of saturation
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Blend consistency indicators
HORIBA Process Instruments Solutions for Food and Beverage
The PI-200 Series Process Raman Analyzers are the analytical foundation of our food and beverage monitoring solutions.
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The PI-200-SP (Single Channel): Suited for monitoring a single critical process point, such as a fermentation vessel, blending header, or filling line. The PI-200-SP can also be configured for stream switching applications, allowing a single analyzer to sample from multiple process streams sequentially.
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The PI-200-DP (Dual Channel): Allows simultaneous monitoring of two process points with one analyzer, for example, the inlet and outlet of a processing step to track compositional change across the unit.
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The PI-200-I (Multichannel): Integrates a fiber multiplexer to monitor up to 17 separate sampling points, suited for larger production facilities with multiple lines or process stages requiring continuous monitoring.
The analyzers pair with our immersion Raman probe for direct process insertion or flow cell configurations for slipstream sampling.
All systems are controlled and monitored through PROspect software, which handles data acquisition, chemometric model deployment, DCS integration, and hardware and measurement logging.
Contact HORIBA Process Instruments
If you are evaluating inline monitoring options for beverage production, fermentation, dairy, or edible oil applications, contact our team to discuss your process conditions and measurement objectives. We will work with you to determine whether a Process Raman analyzer is the right fit and what implementation would look like for your facility.
Resources
At HORIBA Process Instruments, we are committed to more than just delivering cutting-edge Raman technology—we aim to empower you with the knowledge and tools to excel in your industry. Our Resources & Knowledge Base is your go-to hub for expert insights, technical documentation, and best practices to optimize your process monitoring and analysis.
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