GB7300.402-2020
Feed additives—Part 4：Enzymes—Phytase
饲料添加剂 第4部分：酶制剂 植酸酶
GB 7300.402-2020 is a current mandatory Chinese national standard for Feed additives—Part 4：Enzymes—Phytase. It appears in the Food compliance cluster with a product safety focus and has an implementation date of May 1, 2021.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to feed additive phytase products derived from specific fungal strains such as Aspergillus niger and Pichia pastoris through liquid fermentation. It covers both solid and liquid formulations used in animal feed. It is important to note that this standard explicitly excludes phytase products intended for aquatic use.
Technical requirements
The standard outlines the physical, chemical, and microbiological requirements for phytase additives. For solid and liquid formulations, it specifies general appearance criteria, requiring uniform particle size, good flowability, and absence of off-odors or mold. It establishes strict technical indicators including minimum phytase activity limits, moisture content for solid forms, and pH ranges for liquid forms. Furthermore, the standard sets stringent safety parameters for heavy metals (such as arsenic, lead, cadmium, and mercury) and mycotoxins (including Aflatoxin B1 and Zearalenone). Microbiological safety is heavily emphasized, with explicit limits for coliforms and a zero-tolerance policy for Salmonella. Compliance with these contaminant limits is mandatory for all manufacturers.
Testing methods
The standard mandates specific testing procedures to verify compliance. Enzyme activity is determined using spectrophotometric methods as outlined in GB/T 18634. Physical parameters like particle size and moisture are tested according to referenced national standards. For safety verification, the standard prescribes specific methodologies for heavy metal analysis (such as atomic absorption spectroscopy for lead) and microbiological testing for pathogens like Salmonella. Manufacturers must adhere to these exact testing protocols to certify their products.
FAQs
What products are regulated under GB 7300.402-2020?
This standard applies to phytase feed additives produced via liquid fermentation using specific strains like Aspergillus niger or Pichia pastoris. However, it explicitly excludes phytase products formulated for aquatic animal feed.
Are there any significant updates in the 2020 version of this standard?
It sets mandatory technical and safety specifications for both solid and liquid phytase products. Key updates include stringent limits on heavy metals (As, Pb, Cd, Hg) and mycotoxins (such as Aflatoxin B1 and Deoxynivalenol), along with clear definitions for enzyme activity units.
How does GB 7300.402-2020 differ from international ISO standards for feed additives?
While it incorporates general principles similar to international norms, GB 7300.402-2020 is tailored specifically for the Chinese feed industry. It mandates compliance with domestic standards for testing methods, such as using GB/T 18634 for spectrophotometric determination of phytase activity.
The summary above provides a high-level overview of GB 7300.402-2020. To ensure complete compliance for your feed additive products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 7300.402-2020 today to access all detailed parameter tables, testing procedures, and regulatory guidelines.
Applicability hints
- Type
- Product
- CCS
- B46
- ICS
- 65.120
- Competent department
- Ministry of Agriculture and Rural Affairs
- Technical committee
- Ministry of Agriculture and Rural Affairs