Recently, the State Food and Drug Administration updated the latest results of sampling of food samples. Among the 29 batches of biscuits examined, 2 batches of unqualified samples were chocolate-flavored sandwich biscuits imported from Spain. The problem was that the peroxide value exceeded the standard. In the 375 batch samples of the special sampling moon cake, 3 batches of unqualified samples were found, and the acid value of the moon cake produced by a company in Kunming exceeded the standard.
As we all know, food rancidity will threaten people's health, and serious disease and poisoning. Acid value and peroxide value are two important indicators for evaluating food rancidity. On August 31, 2016, the National Health and Family Planning Commission of the People's Republic of China issued a new national food safety standard “GB5009.227-2016 National Food Safety Standards for Determination of Peroxide Value in Foods†and “GB5009.229-2016 Foods†The determination of acid value in foods of national safety standards will be implemented on March 1, 2017. The new national food safety mandatory test has a wider range of tests, and the potentiometric titration method has been added to make the test more accurate, convenient and rigorous.
Potentiometric titration for the determination of acid value and peroxide value
• The experiment process is fully automatic, avoiding complicated manual operations and avoiding exposure to toxic reagents
• Evaluate the titration end point by potential jump, especially for colored samples, avoiding human eye color recognition errors
• Continuous automated measurement of large batches of samples
• With operating software and database to meet the needs of modern data management
The method of automatic potentiometric titration to determine the acid value and peroxide value in food is simple, rapid and accurate, and fully complies with the “GB5009.227-2016 food safety national standard for the determination of peroxide value in food†and GB5009.229-2016 National Food Safety Standards for Determination of Acid Value in Foods.
We offer a wide range of solutions to meet more national food safety standards:
• GB 5009.3-2016 National Food Safety Standard Determination of Moisture in Foods
• GB 5009.7-2016 National Food Safety Standard Determination of Reducing Sugar in Foods
• GB 5009.34-2016 National Food Safety Standard Determination of Sulfur Dioxide in Foods
• GB 5009.43-2016 National Food Safety Standard Determination of Sodium Gluconate (Sodium Glutamate) in MSG
• GB 5009.44-2016 National Food Safety Standard Determination of Chloride in Foods
• GB 5009.235-2016 National Food Safety Standard Determination of Amino Acid Nitrogen in Foods
• GB 5009.239-2016 National Food Safety Standard Determination of Acidity of Foods
Recently, Mr. Gong Yan, a senior product manager of Metrohm in Switzerland, visited the online lecture column of the instrument information network to deeply understand the application of automatic potentiometric titration in food safety standards such as food acid price and peroxide value. Go to the following link to listen to the course: http://
You can browse more about our products and applications by browsing our official website (https://). You can also call the Metrohm China Customer Service Hotline at 400-604-0088 during working hours. We will listen to your needs in the first time. To solve your problem.
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