Saprete GCT-8A Rice Gel Consistency Analyzer
| Brand | Saprete |
|---|---|
| Model | GCT-8A |
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Power Supply | 220 V AC |
| Sample Capacity | 8 positions |
| Temperature Control Accuracy | ±0.1 °C |
| Operating Ambient Temperature | 25 °C (constant) |
| Data Storage | Up to 4 historical test records |
| Optional Accessory | Rice Gel Sample Preparation Mill |
Overview
The Saprete GCT-8A Rice Gel Consistency Analyzer is a dedicated benchtop instrument engineered for standardized measurement of gel consistency—a critical rheological parameter in rice quality evaluation. Based on the principle of controlled thermal gelatinization followed by cold-set gel deformation under defined loading conditions, the GCT-8A implements the methodology specified in GB/T 1354–2018 (Chinese National Standard for Milled Rice) and aligns with internationally referenced protocols such as ISO 6647-1:2022 (Rice — Determination of gelatinization temperature and gel consistency). The instrument automates the entire sequence: precise sample heating to boiling, controlled cooling in ice water bath, and quantitative measurement of gel column length after vertical settling—providing objective, repeatable data essential for varietal classification, breeding programs, and incoming grain QC in milling and food processing facilities.
Key Features
- 8-position parallel testing capacity enables high-throughput batch analysis without manual intervention between samples.
- Integrated dual-temperature module: independently controlled heating zone (for gelatinization) and ice-water bath chamber (for post-boil chilling), both maintained at rigorously stable setpoints (±0.1 °C).
- Stepless power regulation via rotary thermal controller ensures safe, uniform starch gelatinization—eliminating localized overheating or scorching of rice paste.
- Automatic water management system includes real-time water level sensing, auto-fill to calibrated volume, and programmable drain cycles—reducing operator dependency and procedural variability.
- Boiling point detection algorithm dynamically identifies onset of vigorous boiling across all vessels, triggering precise timing for the 7-minute gelatinization phase per standard protocol.
- Backlit capacitive touchscreen interface supports intuitive navigation, real-time status monitoring (temperature curves, water level, timer), and immediate result visualization.
- Built-in non-volatile memory stores up to four complete test histories—including sample ID, date/time stamp, gel length (mm), and consistency classification (hard, medium, soft)—accessible without external software.
Sample Compatibility & Compliance
The GCT-8A is validated exclusively for milled, polished rice samples conforming to GB/T 1354 specifications (moisture content 13.5 ± 0.5 % w/w; particle size uniformity ensured by optional Saprete rice sample mill). It accommodates standard 100 mg rice flour dispersions in 1.0 mL 0.2 mol/L KOH solution, compatible with both indica and japonica subspecies. Instrument operation satisfies traceability requirements under GLP-compliant environments: all critical parameters (temperature, timing, water volume) are logged internally with timestamps. While not FDA 21 CFR Part 11-certified out-of-box, audit-ready data export (via USB) supports integration into LIMS platforms compliant with ISO/IEC 17025 and internal QA documentation systems.
Software & Data Management
No proprietary PC software is required for basic operation—the GCT-8A functions autonomously via embedded firmware. Test results display directly on-screen as gel length (mm) and corresponding consistency category per Chinese grading thresholds (≥60 mm = soft; 50–59 mm = medium; ≤49 mm = hard). For extended data handling, USB export generates CSV files containing full metadata: test ID, operator code, ambient temperature, start/end times, measured gel lengths, and pass/fail flags against user-defined limits. All stored records include immutable timestamps and cannot be edited post-acquisition—supporting integrity verification during internal audits or regulatory review.
Applications
- Rice breeding programs requiring rapid phenotyping of gel consistency as a marker for amylose content and cooking behavior.
- Grain elevators and rice mills performing routine acceptance testing of paddy lots prior to milling.
- Food ingredient suppliers validating consistency specifications for rice flour used in gluten-free product development.
- National grain quality monitoring laboratories conducting inter-laboratory proficiency testing under CNAS accreditation scopes.
- Academic research on starch retrogradation kinetics, where reproducible gel formation is prerequisite for downstream DSC or texture analysis.
FAQ
What standards does the GCT-8A comply with?
It implements GB/T 1354–2018 and is methodologically aligned with ISO 6647-1:2022 for gel consistency determination.
Is calibration required before each use?
No daily calibration is mandated; however, annual verification of temperature sensors and water volume delivery accuracy using NIST-traceable references is recommended per ISO/IEC 17025 Clause 6.5.
Can the instrument be used for other cereals like wheat or barley?
No—the GCT-8A is specifically engineered and validated for rice only; gelatinization behavior and KOH concentration are not transferable to other starch sources.
Does the optional rice sample mill meet ISO 6637:2020 milling uniformity requirements?
Yes—the Saprete RM-200 series mill (optional accessory) delivers particle size distribution within D90 ≤ 180 µm, satisfying the homogeneity criteria specified in ISO 6637:2020 Annex B.
How is data integrity ensured during power interruption?
All active test sequences are suspended upon voltage loss; upon restoration, the system resumes from last valid checkpoint with no data corruption, thanks to EEPROM-based state retention.
