Top Cloud-agri MJ-IIA Gluten Determination System
| Brand | Top Cloud-agri |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Direct Manufacturer |
| Model | MJ-IIA |
| Price | USD 1,080 (FOB) |
| Stirring Speed | 120 rpm ±2 rpm |
| Fine Washing Sieve | 80 µm (200 mesh) |
| Coarse Metal Sieve | 80 µm (26 mesh) |
| Washing Liquid Flow Rate | 50–56 mL/min |
| Kneading Time Range | 1–59 s (adjustable in 1-s increments) |
| Washing Time Range | 1–59 s or 1–9 min (dual digital display) |
| Centrifugation Time Range | 1–59 s or 1–9 min (dual digital display) |
| Centrifuge Speed | 3,000 rpm / 6,000 rpm ±5 rpm (selectable) |
| Centrifuge Sieve Box Aperture | 500 µm |
| Centrifugal Acceleration | 2,000 g |
Overview
The Top Cloud-agri MJ-IIA Gluten Determination System is a fully integrated, three-unit analytical platform engineered for standardized quantitative assessment of gluten content and functional quality in wheat-based flours. It operates on the principle of wet gluten isolation via selective aqueous extraction—leveraging the differential solubility of starch and non-gluten proteins versus the water-insoluble viscoelastic gluten matrix (composed predominantly of gliadin and glutenin). The system comprises three functionally synchronized instruments: a single-head dough washer, a gluten index analyzer, and a dedicated hot-air drying unit. Each module adheres to internationally recognized methodologies outlined in ISO 21415-1:2020 (Cereals and cereal products — Determination of wet gluten — Part 1: Method using a centrifuge) and AACC Method 38-12 (Gluten Index of Wheat Flour). Designed for routine QC/QA laboratories in flour mills, grain inspection agencies, and food R&D centers, the MJ-IIA delivers traceable, operator-independent results under controlled hydration and mechanical stress conditions.
Key Features
- Microprocessor-controlled automation: Fully programmable kneading, washing, and centrifugation cycles eliminate manual intervention and reduce inter-operator variability.
- Dual-speed centrifugation capability (3,000 rpm and 6,000 rpm) enables precise differentiation between high- and low-strength gluten networks—critical for evaluating dough elasticity and baking performance.
- Calibrated stainless-steel sieving assemblies: Fine-wash sieve (80 µm, 200 mesh) ensures complete starch removal; coarse metal sieve (80 µm, 26 mesh) maintains structural integrity during vigorous mixing; centrifuge sieve box (500 µm aperture) allows standardized measurement of gluten index by quantifying the proportion of wet gluten retained vs. expelled under defined g-force (2,000 g).
- Digitally adjustable parameters with dual-time display: Kneading (1–59 s), washing (1 s–9 min), and centrifugation (1 s–9 min) are independently set and monitored in real time, supporting method validation and SOP compliance.
- Noise-dampened mechanical architecture and sealed electronics ensure long-term operational stability in high-throughput environments with minimal maintenance requirements.
Sample Compatibility & Compliance
The MJ-IIA system is validated for use with refined wheat flour, whole wheat flour, durum semolina, and granular flour fractions. It complies with key international standards including ISO 21415-1, ISO 21415-2 (dry gluten determination), AACC 38-12, and GB/T 5506.1–2008 (Chinese national standard for wet gluten testing). All critical process parameters—including flow rate (50–56 mL/min saline solution), rotational speed tolerance (±2 rpm for kneading, ±5 rpm for centrifugation), and temperature-stable drying profiles—are traceable to factory calibration certificates. The system supports GLP-aligned documentation workflows and meets baseline requirements for audit readiness in facilities operating under ISO/IEC 17025 or HACCP frameworks.
Software & Data Management
While the MJ-IIA operates via embedded firmware without external PC dependency, its parameter memory retains up to 10 user-defined test protocols with timestamped execution logs. All time, speed, and flow settings are stored in non-volatile memory and can be exported via RS-232 interface (optional) for integration into LIMS or electronic lab notebooks. Raw mass measurements (wet gluten mass, retained gluten mass post-centrifugation, dry gluten mass) are digitally displayed and manually recorded—supporting 21 CFR Part 11–compatible data entry practices when paired with validated laboratory documentation systems.
Applications
- Quantification of wet gluten content (%) and dry gluten yield (%) in raw and processed wheat flours.
- Determination of gluten index—a dimensionless ratio reflecting gluten strength and extensibility—as defined by ISO 21415-1.
- Calculation of gluten water absorption capacity (g water / 100 g dry gluten) and hydration kinetics during dough formation.
- Batch release testing in commercial milling operations and supplier qualification programs.
- Correlation studies between gluten rheology and end-product performance (e.g., loaf volume, crumb structure, sheeting resistance).
FAQ
What standards does the MJ-IIA comply with for gluten testing?
ISO 21415-1:2020, AACC Method 38-12, and GB/T 5506.1–2008.
Can the instrument differentiate between strong and weak gluten types?
Yes—via dual-speed centrifugation (3,000 rpm and 6,000 rpm) and calculation of gluten index, which correlates directly with dough strength and mixing tolerance.
Is calibration verification supported out-of-the-box?
Yes—each unit ships with a NIST-traceable calibration certificate for rotational speed, time, and flow rate; periodic verification kits are available upon request.
Does the system require external water or compressed air connections?
No—it uses an integrated peristaltic pump for controlled saline delivery and operates on standard 220 V AC power only.
How is data integrity ensured during routine operation?
All test parameters are digitally locked per protocol, time-stamped, and retained in non-volatile memory; manual mass entries follow ALCOA+ principles when documented in compliant lab notebooks.
