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Analysis of the Chaos in Nattokinase Market Testing Standards: Why the Japan Food Association's Method Becomes a Quality Divider

2025-09-23

Inconsistent Standards Lead to Market Chaos

As a functional food ingredient, nattokinase has seen continued growth in market demand in recent years. However, the lack of standardized testing standards in the market has become increasingly prominent, directly leading to uneven product quality and significant price differences.

Currently, the testing method developed by the Japan Food Association is recognized as the industry's authoritative standard. This method accurately measures the fibrinolytic activity of nattokinase through a scientific in vitro lysis zone assay. The results are expressed in FU/g (fibrinolytic units), offering high accuracy and comparability.

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The Hidden Concerns Behind the Proliferation of Company Standards

In stark contrast to the Japan Food Association's method, some companies' own company-developed testing methods present numerous issues:

Inconsistent Activity Units: Some companies use vague terms such as "units/g," lacking clear definitions and conversion relationships, making it difficult to directly compare test results from different companies.

Different Testing Conditions: Key parameters such as reaction temperature, pH, and substrate concentration vary, directly impacting the accuracy of test results. Insufficient Method Validation: Some company standards lack sufficient validation data, making it difficult to ensure the accuracy and reproducibility of testing methods.

Impact of Standard Differences on the Market

This lack of uniformity in testing standards directly leads to:

A Chaotic Pricing System: The actual efficacy of "same" activity values ​​obtained using different testing methods can vary several times, resulting in significant price discrepancies ranging from hundreds to tens of thousands of yuan per kilogram.

Inconsistent Product Quality: Consumers find it difficult to determine the true quality of a product based on the activity value displayed, hindering the healthy development of the market.

Industry Trust Crisis: Inconsistent standards have weakened the industry's overall credibility and hindered the healthy development of the nattokinase market.

Our Quality Commitment

As a responsible manufacturer, we consistently adhere to the following:

Using Authoritative Standards: We fully adopt the testing methods of the Japan Food Association to ensure the accuracy and comparability of test results.

Strict Quality Control: We adhere to strict quality standards at every stage, from raw material screening to finished product delivery.

Transparency in Testing Data: We provide customers with complete test reports, including detailed testing methods and raw data.

Rejecting False Advertising: We truthfully label product activity values ​​and avoid using vague or exaggerated statements.

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Selection Recommendations

Consumers and buyers are advised to consider the following when choosing Nattokinase Products:

1.Is the testing method clearly labeled as the Japan Food Association method?

2.Is the activity unit expressed in the standard FU/g?

3.Can the supplier provide a complete test report?

4.Does the manufacturer have a comprehensive quality management system?

Only by adhering to unified, authoritative standards can we promote the healthy development of the nattokinase industry and ensure that consumers receive truly high-quality products.

We will continue to uphold high standards and strict requirements, providing customers with high-quality nattokinase products that truly meet the standards of the Japan Food Association, and jointly promoting the standardized development of the industry.

Tel: +86 029-86100730                   Email: tangsha@risunExtract.com