How to Establish a Traceability System in a Andy Biotech’s Factory:
A Case Study of Pomegranate Peel Extract

· Plot identification and environmental monitoring: Assign unique codes (e.g., GPS coordinates: 34°26′N, 108°57′E) to pomegranate planting bases, recording soil pH, organic matter content (retaining two decimal places, e.g., 1.25%), annual rainfall, etc.. For example, pomegranate peel raw material must specify the variety as "Pomegranate Punica granatum L." and preserve seed source identification certificates.
· Recording of cultivation process: Use IoT sensors to collect real-time data on light, temperature, and humidity, and record fertilizer and pesticide use (e.g., input registration certificate numbers). Key farming activities (e.g., pruning, harvesting) require photos uploaded to the system.
· Harvesting and primary processing: Label pomegranate peel with batch numbers (e.g., 2025SLP001), harvest parts (peel), growth years (e.g., 3 years), and record drying methods (sun-drying/oven-drying) and equipment codes during primary processing.

· Material input correlation and process parameter tracking: Scan RFID tags of pomegranate peel raw materials upon storage, binding them to extract production batches. Record key process parameters, such as extraction solvent concentration (70% ethanol), temperature (80°C±2°C), and pressure curves. If blockchain is used, smart contracts can store parameter hash values in a distributed ledger to prevent tampering.
· Quality inspection data entry: Conduct HPLC component testing (e.g.Punicalagin content ≥40%) and microbial limit tests for pomegranate peel extract, linking results to traceability codes. Non-conforming products automatically trigger warnings and are prohibited from proceeding.

· Warehouse environment monitoring: Install temperature and humidity sensors in warehouses for real-time data upload (e.g., temperature ≤25°C, humidity ≤60%). Scan traceability codes upon dispatch of pomegranate peel extract, recording customer business license numbers and dispatch times.
· Transportation process tracking: To record equip logistics vehicles’s route,temperature and humidity for the transit.

· Unify data standards
Adopt the "Group Standard for Traceability Data Set of Traditional Chinese Medicine" and standardize the format of data elements (for example, use YYYY-MM-DD for the date and limit the image to JPG format ≤3MB).
· Integration of blockchain and QR code
A unique QR code is generated for each batch of pomegranate peel extract. Consumers can scan the code to display the map of the planting area and the inspection report. Data is stored as evidence through blockchain (such as the patent solution CN202310824064.2) to ensure it cannot be tampered with.