Galacto-oligosaccharides are made up of plant sugars linked in chains. They are found naturally in dairy products, beans, and certain root vegetables. People use galacto-oligosaccharides as prebiotics. Prebiotics act as food for "good" bacteria in the intestine. Don't confuse prebiotics with probiotics such as lactobacillus, bifidobacteria, and saccharomyces, which are live organisms that are good for health. Galacto-Oligosaccharide 57% Syrup Galacto-oligosaccharides sources,galacto-oligosaccharides for constipation Shandong Bailong Chuangyuan Bio-tec Co.,Ltd , https://www.Chinabailong.com
Comparison of biosafety testing standards at home and abroad
Main standard name
Implementation time
Issued
Mainly refer to foreign standards
Main features and evaluation
United States
NSF/ANSI 49-2002
year 2002
United States
National Standards Institute
World Health Organization
Laboratory Biosafety Manual
NIH/CDC
Microbiological and Biomedical Laboratory Biosafety Guidelines
It is recognized as the most complete standard in the field of biosafety cabinets. In 2002, it officially obtained the official recognition of the American National Standards Institute and became the unified standard for US biosafety cabinets.
EU
EN12469:2000
2000
May
Europe
Standardization committee
World Health Organization
Laboratory Biosafety Manual
NIH/CDC
Microbiological and Biomedical Laboratory Biosafety Guidelines
In May 2000, the European Committee for Standardization (CEN) promulgated the European Standard EN12469:2000 for biosafety cabinets, becoming the uniform standard for biosafety cabinets in the EU region.
YY 0569-2005
year 2006
June 1
State Food and Drug Administration
US NSF/ANSI 49-2002
EU EN12469:2000
This standard is a mandatory standard. It is based on the US standard NSF/ANSI149-2002 "ClsssII (Laminar Flow) Biosafety Cabinet" and adds some of the contents of the European Standard EN12469:2000 "Biotechnology - Biosafety Cabinet Performance Requirements".
JG 170-2005
2005
June 1
Ministry of Construction
US NSF/ANSI 49-2002
EU EN12469:2000
The preparation of this specification has ended the long-term lack of uniform standards for biosafety cabinets in China.
GB 50346-2004
year 2004
September 1
Ministry of Construction
State Administration of Quality Supervision, Inspection and Quarantine
-----------------
China’s first national standard on the construction technology of biosafety laboratories has filled the gap in China.