Yuntang YT-GB3. Benzo[a]pyrene Rapid Detection Instrument for Edible Oils

Overview

The Yuntang YT-GB3. Benzo[a]pyrene Rapid Detection Instrument is a field-deployable, integrated immunoassay platform engineered for the quantitative and semi-quantitative screening of benzo[a]pyrene (BaP) in edible oils—including refined vegetable oils, blended cooking oils, and cold-pressed sesame oil. It operates on the principle of competitive colloidal gold immunochromatography, wherein BaP in the sample competes with immobilized BaP–protein conjugates on the test strip for binding sites on anti-BaP monoclonal antibodies labeled with colloidal gold nanoparticles. The intensity of the test line (T-line) signal is inversely proportional to the BaP concentration, enabling rapid visual or instrument-based interpretation within 10–15 minutes post-extraction. Designed to meet routine surveillance requirements under national food safety monitoring programs, the YT-GB3. delivers laboratory-grade decision support at point-of-need—without requiring centralized lab infrastructure, trained analysts, or organic solvent-intensive sample preparation.

Key Features

• Integrated dual-function detection architecture supporting both qualitative yes/no and semi-quantitative analysis (via CT ratio calculation) of BaP in under 15 minutes.
• 10.1-inch high-resolution capacitive touchscreen with Android OS (RK3288 quad-core ARM Cortex-A7, 1.88 GHz), optimized for intuitive navigation, multi-user role management, and offline operation.
• Automated track-driven lateral flow strip scanning system with real-time image capture, auto-alignment, and dynamic CT curve generation; eliminates manual threshold adjustment and operator subjectivity.
• Modular hardware design including embedded colloidal gold reader, wireless communication stack (Wi-Fi + Ethernet), and universal USB interface—enabling seamless integration with regional food safety traceability platforms.
• Onboard data intelligence engine featuring automatic weekly/monthly statistical aggregation, bar-chart visualization of pass/fail rates, and configurable alert thresholds aligned with GB 2762–2022 (National Food Safety Standard – Maximum Levels of Contaminants in Foods).
• Pre-configurable task templates for batch testing—supporting pre-registration of sample IDs, testing parameters, submitting institutions, and regulatory reference standards prior to assay execution.
• Firmware-upgradable architecture with over-the-air (OTA) remote update capability; supports targeted deployment of new assay protocols, database revisions, or compliance module enhancements without hardware replacement.

Sample Compatibility & Compliance

The YT-GB3. is validated for use with common edible oil matrices subject to thermal processing—including soybean oil, peanut oil, rapeseed oil, palm oil, and sesame oil—following standardized extraction procedures per GB/T 5009.27–2016 (Determination of Benzo[a]pyrene in Foods). It accommodates commercially available colloidal gold immunochromatographic strips certified for BaP detection, ensuring interoperability with third-party consumables compliant with ISO/IEC 17025–2017 method validation criteria. All data handling functions adhere to audit-trail requirements consistent with GLP principles, including user authentication, timestamped result logging, and immutable record retention. Instrument-generated reports include mandatory fields required by provincial food and drug administration (CFDA-affiliated) inspection workflows: sampling date, testing date, inspector ID, sample origin, limit standard reference (e.g., GB 2762–2022 §3.1.2: BaP ≤ 10 µg/kg in edible oils), and pass/fail status.

Software & Data Management

The embedded software suite implements a relational local database supporting >200,000 test records, with full export capability to CSV and Excel formats via USB mass storage. Each entry includes raw image files, CT values, calculated concentrations, operator credentials, and geotagged metadata (when GPS-enabled mobile hotspot is active). Role-based access control allows configuration of administrator, technician, and viewer permissions—enforcing separation of duties during calibration, report generation, and system maintenance. Data synchronization occurs automatically upon network connection to designated public health surveillance servers using TLS 1.2–secured HTTP(S) POST endpoints. Local storage retains all records during offline operation, with conflict resolution logic ensuring no data loss during intermittent connectivity. Print output supports customizable A4-format certificates compliant with CNAS-CL01:2018 documentation requirements, including QR-coded traceability links to original digital records.

Applications

• Routine quality control screening at edible oil refineries and bottling facilities prior to product release.
• Field-based inspections by municipal market supervision bureaus during routine food safety patrols and unannounced audits.
• Teaching and method validation studies in university food science laboratories focusing on mycotoxin and PAH contamination pathways.
• Emergency response triage during foodborne incident investigations involving suspected thermal degradation or smoke contamination of cooking oils.
• Contract testing laboratories performing accredited BaP screening services under CNAS accreditation scope (ISO/IEC 17025).

FAQ

What regulatory standards does the YT-GB3. support for BaP compliance assessment?
It references GB 2762–2022 (Maximum Levels of Contaminants in Foods), specifically Section 3.1.2 for edible oils, and cross-links to GB/T 5009.27–2016 for analytical methodology alignment.
Can the instrument be used with non-Yuntang branded lateral flow strips?
Yes—the optical detection module and image analysis algorithm are calibrated to accept industry-standard colloidal gold strips meeting ISO 22866:2021 dimensional and reflectance specifications.
Is the device suitable for untrained personnel in rural inspection stations?
Designed for minimal training dependency: guided workflow prompts, auto-interpreted results, and context-sensitive help overlays reduce operational error risk while maintaining analytical integrity.
How is data integrity ensured during regulatory audits?
All actions generate immutable logs with cryptographic timestamps; password-protected admin mode restricts calibration, database editing, and firmware reset functions to authorized staff only.
Does the system support multi-language UI for cross-provincial deployment?
Currently English and Simplified Chinese interfaces are embedded; additional language packs may be deployed via OTA updates based on regional regulatory authority requirements.