Protein Analysis Instruments for Food & Feed Testing

In the pursuit of nutritional quality, agricultural sustainability, and scientific precision, protein analysis stands as a foundational tool. Whether you’re conducting crude protein analysis in animal feed, performing food protein analysis to verify label claims in dairy products, or running feed protein analysis to assess nitrogen levels in soil and fertilizer, the ability to measure protein content accurately is essential—not just for compliance, but for confidence in every decision that follows.

For decades, the Kjeldahl method has served as the benchmark for nitrogen determination— a key step in analyzing the protein content of a sample. However, as laboratories evolve and work to outperform their competition, certain trade-offs with this method have become less than desirable. Time-intensive workflows, hazardous reagents, and complex calibrations fail to meet the needs of modern day, high-throughput labs. The Dumas combustion method offers a refined alternative that aligns with sought-after values of safety, efficiency, and clarity. It’s a shift not just in technique, but in mindset: from reactive testing to proactive insight.

LECO’s FP828 and FP928 protein analyzers are designed to support that shift. Built on the principles of speed and simplicity, these advanced analyzers deliver results in as little as 2.8 minutes per sample with sample masses as large as 2 grams. Their “one method, one calibration” approach eliminates the need for constant adjustments, allowing analysts to focus on interpretation rather than instrumentation. These protein analyzers are not just tools—they are trusted companions in the lab, guiding users toward more informed insights.

Comprehensive Sample Analysis Beyond Protein

But protein analysis is only part of the picture. Moisture and ash content can also play a critical role in understanding sample composition and ensuring accurate crude protein analysis calculations. LECO’s TGA801 and TGM800 thermogravimetric analyzers complement our protein analyzer series by providing precise moisture and ash determination. Together, they offer a holistic view of sample integrity—whether you’re conducting food protein analysis on powdered dairy, feed protein analysis on plant-based alternatives, or agricultural input evaluation.

This integrated approach reflects a deeper philosophy—meaningful analysis begins with meaningful tools. LECO’s protein analyzers are engineered not just for performance, but for purpose. They support workflows that are streamlined, reagent-free furnace, and globally aligned with accepted standards for nitrogen determination using the Dumas combustion method. They empower laboratories to move beyond the traditional Kjeldahl method and toward a future defined by clarity, consistency, and reliability.

As you prepare to revisit your protein analysis strategy, consider what it means to do it right. Explore our application notes, review our webinars comparing Dumas nitrogen determination vs. Kjeldahl methods, and discover how LECO’s protein analyzers can elevate your lab’s food and feed protein analysis capabilities. When the goal is insight (not just output), LECO provides the tools and expertise to guide the way.