GB19172-2026

Spawn of oyster mushrooms

平菇菌种

GB 19172-2026 é uma norma nacional chinesa obrigatória que entrará em vigor: Spawn of oyster mushrooms. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de mai. de 2027.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to the production, management, and trade of oyster mushroom spawns (*Pleurotus ostreatus*). It covers mother spawns, stock spawns, and cultivation spawns used in the edible fungi industry. It is mandatory for all manufacturers and distributors operating within the Chinese market.

Requisitos técnicos

The standard specifies comprehensive quality criteria for oyster mushroom spawns, categorized into container, biological, and sensory requirements. For containers, it mandates specific physical forms, integrity, and sealing methods to ensure proper ventilation and filtration. Biologically, the standard enforces strict purity by requiring the presence of clamp connections and the complete absence of mold, bacteria, insects, and insect eggs. Compliance with these basic biological and varietal characteristics is non-negotiable for market access. For mother spawns, the standard details sensory parameters such as medium fill volume, mycelial growth status, and colony edge uniformity. It also sets specific mycelial growth speed benchmarks using PDA medium and introduces a growth consistency evaluation to ensure batch stability. Manufacturers must verify that morphological abnormalities do not exceed the permitted thresholds across repeated samples. Regarding stock spawns and cultivation spawns, the requirements focus on mycelial density, absence of antagonistic lines, and strict odor criteria to prevent microbial contamination. Growth speed parameters are defined using a cottonseed hull-wheat bran medium. Strict adherence to these sensory and growth metrics is essential for certifying cultivation-grade spawns.

Métodos de ensaio

The standard outlines various inspection procedures, including visual examination of containers and sensory traits under natural light. Biological purity is verified via microscopic observation for clamp connections and liquid culturing techniques to detect bacterial and mold contamination. Insect and egg inspections must be conducted according to the referenced standard NY/T 1284. Additionally, it specifies detailed protocols for evaluating mycelial growth speed and growth consistency using standardized media and controlled environmental conditions.

Perguntas frequentes

What products are regulated under GB 19172-2026?

GB 19172-2026 applies to the production, management, and trade of oyster mushroom spawns (including mother spawns, stock spawns, and cultivation spawns). It is mandatory for all relevant manufacturers and traders operating in China.

Are there any updates from the previous version of GB 19172?

The 2026 revision replaces GB 19172-2003. Key updates include modified container requirements, the addition of varietal characteristics and insect/egg restrictions, updated sensory requirements, and revised testing methods and inspection rules.

How does GB 19172-2026 differ from international ISO standards?

While it shares similar microbiological concepts, GB 19172-2026 is tailored specifically for the Chinese agricultural industry. It references domestic standards like NY/T 528 and NY/T 3718 for specific cultivation and testing protocols, which may differ from international ISO guidelines.

The summary above provides a high-level overview of GB 19172-2026. To ensure complete compliance for your 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 19172-2026 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: B39
ICS: 65.020.20
Órgão competente: Ministry of Agriculture and Rural Affairs
Comitê técnico: Ministry of Agriculture and Rural Affairs

Relações

Substitui:GB 19172-2003 (Vigente)