GB7300.502-2023
Feed additives —Part 5：Live microorganisms —Lactobacillus plantarum
饲料添加剂 第5部分：微生物 植物乳杆菌
GB 7300.502-2023 is a current mandatory Chinese national standard for Feed additives —Part 5：Live microorganisms —Lactobacillus plantarum. It appears in the Food compliance cluster with a product safety focus and has an implementation date of Jun 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 additives containing Lactobacillus plantarum as the active strain, specifically those produced through liquid fermentation and subsequent drying processes. It is mandatory for manufacturers producing and selling this specific microbial feed additive in China. The standard does not apply to other microbial species or non-microbial feed additive categories.
Technical requirements
The standard specifies comprehensive technical requirements for Lactobacillus plantarum feed additives, covering raw materials, appearance, strain identification, and physicochemical properties. Manufacturers must ensure the strain matches the morphological, physiological, biochemical, and molecular biology characteristics of Lactobacillus plantarum. Key physicochemical parameters include viable cell count, moisture content, and fineness, with specific minimum or maximum limits defined for powder and granular forms. Strict hygiene indicators are established to ensure product safety, setting maximum limits for heavy metals such as arsenic, lead, mercury, and cadmium. Compliance with mycotoxin limits, including aflatoxin B1 and zearalenone, is strictly enforced. The standard also sets absolute limits for microbial contaminants like coliforms, molds, and specifically requires Salmonella to be absent in 25g samples. Furthermore, the standard outlines requirements for carriers and diluents, which must comply with the relevant Chinese feed ingredient directories and hygiene standards. Proper labeling, packaging, transportation, and storage conditions are mandatory to maintain product viability throughout its shelf life.
Testing methods
The standard outlines a rigorous testing framework, starting with morphological and molecular identification of the strain using MRS media and 16S rRNA sequence analysis. Accurate viable cell counting is conducted using specialized plate methods detailed in the standard's appendices. Additionally, physicochemical parameters like moisture and fineness are tested according to referenced national standards (GB/T 5917.1 and GB/T 6435). For hygiene and safety verification, the standard mandates specific testing methods for heavy metals, mycotoxins, and pathogenic microorganisms. These tests rely on established national standards for atomic absorption spectrometry and microbiological enumeration to ensure all safety limits are strictly met.
FAQs
What products are regulated under GB 7300.502-2023?
This standard applies to feed additive products containing Lactobacillus plantarum that are produced through liquid fermentation and drying processes. It regulates the technical requirements, sampling, and testing methods for these specific microbial products.
Are there any updates from the previous version of GB 7300.502?
As a newly published standard effective from June 1, 2024, it forms part of the updated GB 7300 series for feed additives. Manufacturers must transition to these current guidelines to maintain market access, ensuring their Lactobacillus plantarum products meet the latest safety and quality benchmarks.
How does GB 7300.502-2023 differ from ISO standards?
The standard incorporates internationally recognized testing principles, such as 16S rRNA sequencing for molecular biology identification, but it is specifically tailored for Chinese regulatory compliance. It aligns with Chinese national standards (GB/T) for hygiene and safety testing rather than directly adopting ISO methods.
The summary above provides a high-level overview of GB 7300.502-2023. 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 7300.502-2023 today to access all detailed parameters, 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