GB19170-2026
Spawn of Lentinula edodes
香菇菌种
GB 19170-2026 is an upcoming mandatory Chinese national standard for Spawn of Lentinula edodes. It appears in the Food compliance cluster with a product safety focus and has an implementation date of May 1, 2027.
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 the production, management, and trade of Lentinula edodes (Shiitake) spawn. It covers various types of spawn including mother spawn, stock spawn, cultivation spawn, and newly added liquid spawn. It is mandatory for all manufacturers and traders operating within the Chinese agricultural sector.
Technical requirements
The standard specifies comprehensive container requirements, dictating the type, appearance, and sealing methods for different spawn forms, such as test tubes for mother spawn and stainless steel fermentation tanks for liquid spawn. For biological requirements, the spawn must exhibit healthy mycelium growth with clamp connections, and must be completely free from microbial contaminants and pests. The standard also defines strict sensory requirements for each spawn category, detailing mycelium density, colony characteristics, and permissible odors. A major addition in this revision is the inclusion of liquid spawn specifications, which introduces specific physicochemical parameters including pH levels, mycelium wet weight, and mycelium volume ratio. Manufacturers must ensure these physicochemical thresholds are strictly met to pass conformity assessments.
Testing methods
The standard outlines various evaluation procedures, including microscopic examination for mycelium status and clamp connections, and specific culturing methods to detect bacterial, mold, and yeast contamination. It also details sensory evaluations via visual and olfactory checks, growth speed measurements on specific media like PDA, and centrifugation techniques to determine the mycelium wet weight and volume ratio for liquid spawn. Strict adherence to these testing protocols is required for batch release.
FAQs
What products are regulated under GB 19170-2026?
The standard regulates the production, management, and trade of Lentinula edodes (Shiitake) spawn, specifically covering mother spawn, stock spawn, cultivation spawn, and liquid spawn.
Are there any updates from the previous version of GB 19170?
Yes, compared to the 2003 version, this revision adds quality requirements for liquid spawn, updates container and biological requirements, modifies testing methods, and introduces new rules for batch formation (组批) and inspection types.
How does GB 19170-2026 handle international testing references?
The standard references national and industry standards such as GB/T 12728 for terminology and NY/T 1284 for pest and contaminant testing, ensuring alignment with domestic agricultural practices. Manufacturers should align their internal QC with these referenced protocols.
The summary above provides a high-level overview of GB 19170-2026. To ensure complete compliance for your mushroom spawn 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 19170-2026 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- B39
- ICS
- 65.020.20
- Competent department
- Ministry of Agriculture and Rural Affairs
- Technical committee
- Ministry of Agriculture and Rural Affairs
Relationships
Replaces:GB 19170-2003 (Current)