FOSS Alphatec™ FNO Falling Number Analyzer

Overview

The FOSS Alphatec™ FNO Falling Number Analyzer is a precision-engineered instrument designed for the standardized determination of Falling Number (FN) — a critical rheological parameter reflecting α-amylase activity in cereal grains and milled flour. Based on the fundamental principle of starch gel viscosity decay under controlled thermal and mechanical conditions, the Alphatec™ FNO implements the internationally harmonized test protocol defined in ISO 3093:2022, AACC Method 56-81B, ICC Standard 107/1, and ASTM D7827. During analysis, a precisely weighed slurry of ground grain or flour is suspended in distilled water, placed in a calibrated glass tube, and subjected to a standardized 60-second preheating followed by continuous boiling in a thermostatically regulated water bath (100.0 ± 0.2 °C). A stainless-steel stirrer rod descends under gravity through the developing starch paste; its fall time (in seconds) — measured automatically via optical detection — constitutes the Falling Number value. Low FN values (350 s) suggest sound, dormant grain with minimal enzymatic degradation. This measurement directly correlates with baking performance, dough handling properties, and end-product quality in bread, noodles, pasta, and malt production.

Key Features

• Automated, single-tube falling number measurement with optical endpoint detection and real-time stirrer motion tracking
• Integrated 7-inch capacitive touchscreen interface supporting English, German, French, Spanish, and Chinese language options
• High-stability water bath with PID-controlled heating and active temperature uniformity monitoring (±0.1 °C across all tube positions)
• Calibrated stainless-steel stirring rods traceable to NIST-certified reference standards
• Pre-programmed method templates compliant with ISO, AACC, ICC, and ASTM specifications — configurable for wheat, rye, barley, sorghum, and wholemeal flour
• Robust mechanical architecture with corrosion-resistant housing and IP20-rated electronics enclosure suitable for grain elevator and QC laboratory environments

Sample Compatibility & Compliance

The Alphatec™ FNO accommodates a broad range of cereal matrices including soft and hard red/white wheat, triticale, rye, barley, durum, sorghum, and both refined and whole-grain flours. Sample preparation follows strict grinding protocols per ISO 6540 and AACC 26-21A to ensure particle size consistency and reproducible slurry formation. All operational parameters — water volume, sample mass, mixing speed, preheat duration, and boiling time — are programmable and locked per method to enforce analytical rigor. The system supports full traceability in regulated environments: electronic records comply with FDA 21 CFR Part 11 requirements when used with FOSS’s optional LabX™ software, including role-based user authentication, electronic signatures, and immutable audit trails. Instrument qualification documentation (IQ/OQ/PQ) is available upon request for GMP/GLP-compliant installations.

Software & Data Management

When paired with FOSS LabX™ Food Analysis Software (optional), the Alphatec™ FNO enables centralized instrument control, automated report generation, and secure data archiving. LabX provides method versioning, calibration history logging, and statistical process control (SPC) charting for trend analysis across batches or suppliers. Raw FN values, temperature logs, stirrer descent profiles, and operator metadata are stored in encrypted SQLite databases with configurable retention policies. Export formats include CSV, PDF, and XML for LIMS integration. All software modules undergo annual cybersecurity validation and adhere to IEC 62443-3-3 security assurance levels for industrial control systems.

Applications

• Grain procurement screening at elevators and silos to detect pre-harvest sprouting damage
• Flour mill quality assurance for enzyme activity profiling prior to blending or additive dosing
• Bakery R&D for correlating FN with loaf volume, crumb structure, and staling kinetics
• Malting facility process control to assess germination uniformity and kilning efficacy
• Regulatory compliance testing for export shipments requiring FN certification per national grain standards (e.g., U.S. FGIS, Canadian Grain Commission, DGCCRF)
• Research laboratories investigating starch–enzyme interaction kinetics under variable moisture and temperature regimes

FAQ

What international standards does the Alphatec™ FNO comply with?

ISO 3093:2022, AACC 56-81B, ICC 107/1, and ASTM D7827 — with full method parameter traceability and documented equivalence.
Can the instrument be validated for GMP use?

Yes. IQ/OQ/PQ documentation packages and 21 CFR Part 11-compliant operation are supported via LabX™ software integration.
Is routine calibration required between samples?

No. The system uses factory-calibrated stirrer rods and temperature sensors; daily verification using certified reference materials (e.g., FOSS FN Reference Slurry Kit) satisfies routine performance checks.
How is sample-to-sample carryover prevented?

Each test uses a disposable glass tube; the stirrer rod is automatically rinsed with deionized water between runs, and the water bath is drained and refilled per batch protocol.
Does the analyzer support unattended operation?

Up to 12 sequential analyses can be queued via touchscreen or LabX™; automatic shutdown and bath cooling initiate after completion.