GB7300.403-2022
Feed additives—Part 4：Enzymes—Cellulase
饲料添加剂 第4部分：酶制剂 纤维素酶
GB 7300.403-2022 is a current mandatory Chinese national standard for Feed additives—Part 4：Enzymes—Cellulase. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Jan 1, 2024.
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 cellulase produced via fermentation using bacterial strains listed in the Feed Additive Variety Catalog. It covers both solid and liquid formulations, whether produced with or without carriers. It is mandatory for manufacturers producing cellulase enzymes for animal feed within or exporting to the Chinese market.
Technical requirements
The standard outlines specific technical requirements for cellulase used in animal feed. It mandates that carriers must comply with the Feed Raw Material Catalog and meet hygiene standards. For appearance and properties, solid formulations must be uniform and free-flowing without clumping, while liquid formulations must have a uniform color without mold. The standard sets strict physicochemical limits, including minimum enzyme activity, moisture content for solids, particle size, and pH ranges for liquids. Furthermore, it establishes stringent hygiene and contaminant limits for heavy metals (such as arsenic, lead, cadmium, and mercury), pathogenic microorganisms (like Salmonella), and mycotoxins. Compliance with these technical parameters is essential for product approval.
Testing methods
The standard references established Chinese national and industry standards for testing. Enzyme activity is evaluated using spectrophotometry as defined in NY/T 912. Physical parameters like moisture and particle size are tested according to GB/T 6435 and GB/T 5917.1, respectively. Heavy metals and microbiological safety are assessed using referenced methods such as GB/T 13079 for total arsenic and GB/T 13091 for Salmonella. Manufacturers must follow these exact testing protocols to verify conformity.
FAQs
What products are regulated under GB 7300.403-2022?
This standard regulates feed additive cellulase products, including both solid and liquid formulations, produced through microbial fermentation.
Are there specific re-testing rules if a product fails inspection under this standard?
Microbiological indicators such as Salmonella and coliforms cannot be re-tested if they fail, whereas other physicochemical parameters allow for double sampling and re-testing.
How does GB 7300.403-2022 relate to other feed additive standards?
It is part of the broader GB 7300 series for feed additives and references specific Chinese national standards for testing, such as GB/T 13079 for arsenic and NY/T 912 for enzyme activity.
The summary above provides a high-level overview of GB 7300.403-2022. 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 7300.403-2022 today to access all detailed parameters, limit tables, and testing procedures.
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