Saprete GCT-28A Rice Gel Consistency Analyzer
| Brand | Saprete |
|---|---|
| Model | GCT-28A |
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Power Supply | 220 V AC |
| Sample Capacity | 28 positions |
| Temperature Control Accuracy | ±0.1°C |
| Data Storage | Up to 4 Historical Test Groups |
| Compliance | Designed for GB/T 17891–2018, ISO 6647-1:2022, and AACCI Method 61-02 |
Overview
The Saprete GCT-28A Rice Gel Consistency Analyzer is an automated, benchtop instrument engineered for standardized determination of gel consistency — a critical physicochemical parameter in rice quality evaluation. Based on the principle of controlled thermal gelatinization followed by cold-set rheological assessment, the GCT-28A replicates the standardized protocol defined in GB/T 17891–2018 (Chinese National Standard), ISO 6647-1:2022 (Rice — Determination of gelatinization temperature and gel consistency), and AACCI Method 61-02 (Gel Consistency of Milled Rice). The instrument performs sequential operations: precise alkali-mediated starch dispersion, controlled boiling (with automatic boiling point recognition), standardized cooling in ice water (maintained at 0–4°C), and quantitative measurement of gel column length after vertical setting. This methodology directly correlates with amylose content, cooking behavior, and texture attributes such as stickiness and firmness — key determinants in varietal classification, breeding programs, and commercial grading of paddy and milled rice.
Key Features
- 28-position high-throughput sample carousel enables parallel processing of up to 28 rice flour samples per batch — optimized for routine QC labs and grain research centers.
- Integrated dual-temperature control system: independent heating module with stepless power adjustment for controlled gelatinization, and dedicated ice-bath chamber with real-time temperature monitoring and auto-refill capability.
- ±0.1°C temperature regulation accuracy across all thermal phases (boiling, holding, cooling), ensuring strict adherence to ISO and national method tolerances.
- Automated fluid management: ultrasonic water level sensor triggers fill/drain cycles; dry-run protection prevents heater damage during low-water conditions.
- Large backlit capacitive touchscreen interface with intuitive icon-driven navigation — supports operator-guided mode and fully automated sequence execution.
- PC-hosted control software provides protocol configuration, real-time status logging, calibration traceability, and export of raw gel length data (mm) and derived consistency categories (e.g., hard, medium, soft).
Sample Compatibility & Compliance
The GCT-28A accepts standard 100-mg rice flour samples prepared according to GB/T 17891 or ISO 6647-1 specifications. It accommodates both indica and japonica varieties, including glutinous rice (waxy types), and supports method validation across diverse amylose ranges (0–30%). All thermal and mechanical operations comply with the procedural requirements of ISO/IEC 17025-accredited laboratories. Instrument firmware and software architecture support audit-ready data integrity: time-stamped test records, user authentication logs, and immutable storage of raw measurements satisfy GLP documentation expectations. While not FDA 21 CFR Part 11 certified out-of-box, the system is configurable for electronic signature and audit trail modules upon request for regulated environments.
Software & Data Management
The GCT-28A operates via Windows-based host software that implements role-based access control (administrator/operator modes), customizable test templates, and version-controlled method files. Each assay generates a structured dataset including ambient temperature, boiling duration, cooling time, final gel length (in mm), and classification code (e.g., “Soft: >70 mm”). Data exports are available in CSV and PDF formats, compatible with LIMS integration. Four independent historical result groups are retained onboard for rapid reference; external USB storage extends archival capacity. Calibration parameters (temperature offset, timing offsets) are digitally stored and password-protected to prevent unauthorized modification.
Applications
- Rice breeding programs: high-throughput phenotyping of gel consistency as a proxy for amylose biosynthesis gene expression (e.g., Waxy locus variants).
- Grain procurement & milling QA: objective classification of paddy lots prior to processing, reducing subjectivity in manual gel scoring.
- Food product development: correlation of gel consistency with end-product performance in rice noodles, mochi, and extruded snacks.
- Regulatory compliance testing: verification of labeling claims (e.g., “non-sticky”, “soft-cooking”) against national rice grading standards.
- Academic research: kinetic studies of starch retrogradation under controlled cooling profiles.
FAQ
What standards does the GCT-28A support?
It is validated for GB/T 17891–2018, ISO 6647-1:2022, and AACCI Method 61-02.
Can the instrument be used for brown rice flour?
Yes — provided the sample is milled to ≤100 µm particle size and free of bran interference, per ISO 6647-1 preparation guidelines.
Is external calibration required?
Temperature sensors are factory-calibrated; users may perform periodic verification using NIST-traceable PT100 probes — no proprietary calibration tools needed.
How is data security handled?
All measurements are timestamped and user-attributed; local database encryption and optional network-based backup ensure integrity and recoverability.
Does the system support IQ/OQ documentation?
Yes — comprehensive installation and operational qualification templates are provided with the instrument, aligned with ISO/IEC 17025 Annex A.3 requirements.
