GB 31639-2023 English PDF (GB31639-2023)

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GB 31639-2023: National food safety standard - Strain preparation for food processing
GB 31639-2023. National food safety standard bacterial preparations for food processing
National Standards of People's Republic of China
National food safety standards
Bacterial culture preparations for food processing
Published on 2023-09-06
Implemented on 2024-09-06
National Health Commission of the People's Republic of China
Released by the State Administration for Market Regulation
Preface
This standard replaces GB 31639-2016 "National Food Safety Standard Yeast for Food Processing".
National food safety standards
Bacterial culture preparations for food processing
1 Scope
This standard applies to bacterial strain preparations used in food processing, including bacterial strain preparations used for food fermentation or added as raw materials to food.
Products used for direct consumption as well as distiller’s yeast and red yeast produced by solid-state fermentation process.
2 Terms and definitions
2.1 Culture preparations for food processing
One or more live microorganisms (including bacteria, filamentous fungi, yeast) that can be used in food, fermented, enriched, emulsified or not,
Food raw material preparations made by drying or not drying, mixing or not mixing, packaging and other processes.
3 Technical requirements
3.1 Raw material requirements
3.1.1 Bacteria
It should comply with the regulations, announcements and relevant provisions issued by the health administrative department of the State Council.
3.1.2 Other raw materials
The raw materials added during the fermentation and preparation process of bacterial strains should comply with corresponding standards and relevant regulations.
3.2 Sensory requirements
Sensory requirements should comply with Table 1.
Table 1 Sensory requirements
Project requirements inspection method
The color has the color that the product should have
The smell has the unique smell of the bacteria, no corruption, no peculiar smell
Liquid, semi-solid or solid state, no foreign matter visible with normal vision
Take an appropriate amount of sample and place it on a clean white plate (porcelain plate or similar container)
, observe the color and condition under natural light, smell its smell, and check if there is any
No impurities
3.3 Pollutant limits
The pollutant limits should comply with the provisions of Table 2.