iCheck lactoferrin Strip Test：Rapid, On-Site Quantitative Detection of Lactoferrin in Milk

Lactoferrin is a bioactive glycoprotein naturally present in milk and colostrum, valued for its immune-modulating, antimicrobial, and iron-binding properties. It is a key quality indicator in dairy products, especially in infant formula, functional beverages, and bovine colostrum supplements. Verifying lactoferrin content is therefore essential for product standardization, label claims, and quality assurance.

The iCheck lactoferrin Strip Test from Clover Technology Group, Inc. provides a rapid, reliable, and easy-to-use solution for the quantitative measurement of lactoferrin in milk. Based on a competitive lateral flow immunochromatographic assay and used with the iCheck™ strip reader, this test delivers precise results in the range of 0 to 50 ppm, with a quantitation limit as low as 1.0 ppm.

Why Measure Lactoferrin in Milk?

Lactoferrin concentration in milk varies depending on species, lactation stage, and processing conditions. Monitoring its level helps:

• Ensure nutritional quality – Lactoferrin is a heat‑sensitive bioactive protein. Its presence indicates proper processing and minimal heat damage.

• Comply with labeling claims – Products fortified with lactoferrin or marketed as “colostrum‑rich” must contain the declared amount.

• Support process control – Rapid testing enables real‑time adjustments during blending, standardization, or heat treatment.

• Authenticate high‑value products – Detects adulteration or dilution in premium dairy ingredients.

iCheck lactoferrin Strip Test: Principle and Technology

iCheck lactoferrin Strip Test is a competitive lateral flow immunochromatographic assay. Its operation is straightforward:

1. Sample application – A milk sample is added to a microwell coated with reagents that facilitate the competitive reaction.

2. Competitive binding – Lactoferrin in the sample competes with lactoferrin immobilized on the test strip for binding to a limited amount of antibody–gold conjugate.

3. Migration and signal development – The mixture migrates along the strip. In the test line, the immobilized lactoferrin captures unbound antibody–gold particles. The color intensity at the test line is inversely proportional to the lactoferrin concentration in the sample.

4. Quantitative reading – The developed strip is inserted into the iCheck™ strip reader. The reader calculates the lactoferrin concentration using a pre‑calibrated curve stored on the supplied RFID calibration card.

This design allows precise quantification across a range of 0–20 ppm (extendable to 50 ppm with dilution), with a lower quantitation limit of 1.0 ppm.

Kit Contents

Key Features & Advantages

✅ Rapid results – Total time from sample to result is approximately 10–15 minutes, enabling real‑time decisions on the production floor or at intake.

✅ Quantitative with low detection limit – Measures lactoferrin from 0 to 20 ppm (extendable to 50 ppm), with a quantitation limit of 1.0 ppm.

✅ Competitive lateral flow format – Well‑suited for small molecules and proteins where competitive binding provides accurate quantification.

✅ Simple workflow – No complex instrumentation or specialized training required. The iCheck™ strip reader automates result calculation and eliminates subjective interpretation.

✅ Portable and field‑ready – The compact reader and strip format allow testing anywhere – from a receiving dock to a remote farm.

✅ Full kit with consumables – Includes strips, microwells, buffers, pipette tips, tubes, and an RFID calibration card. Everything needed for 25 tests.

✅ Validated for milk matrix – Specifically designed and tested for raw, pasteurized, and reconstituted milk samples.

Simple Workflow: From Sample to Result

Total hands‑on time: less than 5 minutes per sample (excluding incubation).

Total test time: approximately 10–15 minutes.

Result Interpretation

Important: Always ensure the control zone shows a line. If the control line is missing, the test is invalid regardless of the test line.

Applications

• Dairy processing plants – Incoming raw milk inspection, in‑process monitoring of lactoferrin levels, and finished product verification.

• Infant formula manufacturers – Confirm lactoferrin fortification levels and batch‑to‑batch consistency.

• Colostrum and functional dairy producers – Standardize high‑value products and support label claims.

• Quality control laboratories – Rapid screening before sending samples to confirmatory methods (e.g., HPLC, LC‑MS/MS).

• Research and development – Quick formulation screening and stability studies.

Performance Characteristics

Note: Performance may vary slightly depending on milk source and fat content. Refer to the product manual for validation data specific to your matrix.

Precautions for Use

• Storage: Store the test kit at 2–8 °C (35.6–46.4 °F) when not in use. Do not use beyond the expiration date.

• Moisture protection: Keep strips and microwells in their sealed pouches until use. Do not use damaged or damp kits.

• Temperature equilibration: All reagents must be at room temperature before starting the assay.

• No reuse: Test strips and microwells are for single use only. Do not reuse.

• Desiccant: Avoid swallowing the desiccant packet included in the kit.

• High concentration samples: If the measured value reads 20 ppm (the upper limit of direct quantitation), dilute the sample with lactoferrin‑free milk and re‑test. Multiply the reader result by the dilution factor.

Why Choose Clover Technology Group, Inc.?

Clover Technology Group, Inc. specializes in developing intelligent, rapid detection tools that bridge the gap between sophisticated laboratory analysis and practical, everyday quality control. The iCheck lactoferrin Strip Test exemplifies this mission by combining robust lateral flow technology with user‑centric design and portable instrumentation.

Advantages of choosing Clover :

• Integrated system – Strips, reader, and RFID calibration work seamlessly together for accurate, reproducible results.

• No subjective reading – The iCheck™ strip reader eliminates visual interpretation errors.

• Technical support – Application specialists are available to assist with protocol optimization and troubleshooting.

• Field‑ready – Compact and battery‑operated options make on‑site testing simple.

• Proven reliability – Validated on real‑world milk samples under typical processing conditions.

Ordering Information

Kit includes: 25 test strips, 25 coated microwells, dilution buffer, centrifuge tubes, pipette tips, RFID calibration card, and product manual.
Note: The iCheck™ strip reader is required but sold separately unless otherwise specified.

Available resources:

• Product manual with detailed procedure and validation data

• Certificate of Analysis (CoA) for each lot

• Technical support via phone, or online meeting

Conclusion

The iCheck lactoferrin Strip Test offers a rapid, quantitative, and easy‑to‑use method for measuring lactoferrin in milk. With a quantitation limit of 1.0 ppm and a working range up to 50 ppm (using dilution), it is ideal for dairy processors, infant formula manufacturers, and quality control laboratories that need to verify lactoferrin content quickly and reliably. The combination of competitive lateral flow technology and the iCheck™ strip reader with RFID calibration ensures objective, accurate results every time.

Empower your quality assurance team with on‑site, real‑time lactoferrin testing — without compromising on scientific reliability.

For pricing, technical specifications, or to request a quotation, please visit our product page or contact our sales team today.

Clover Technology Group, Inc. — Intelligent Solutions for a Safer and Better Food Supply.