Physical and chemical parameter testing of food additives

Food additives are chemical synthetic or natural substances added in the food production process to improve the color, aroma, and flavor of food. At the same time, food additives can also improve the anti-corrosion ability of food and play a very important role in food production. At present, the food additives used in China's food production are mostly synthetic additives, and excessive use can have certain effects on the human body. In the 1980s, China made clear regulations on the scope and dosage of certain food additives, and established a "Food Additive Standardization Committee"&Nbsp

Conventional food additive testing methods

1 Molecular spectroscopy technology is a common detection method in conventional food additive detection methods, which utilizes the absorption of specific electromagnetic radiation by molecules for a qualitative and quantitative analysis. This detection technology can detect the concentration of various food additives in flour, such as benzoyl peroxide. The detection method is to use a portable spectrometer to detect the concentration of iodine in flour, and the concentration of benzoyl peroxide can be calculated from the concentration of iodine&Nbsp

2. Chromatography detection method: Food additive chromatography detection method is also a conventional detection method, which mainly uses high-performance liquid chromatography diode array detector to detect food additives. The detection using chromatography technology mainly focuses on the content of hydroxybenzoate, and the diode array detector is used to detect the hydroxybenzoate extracted from acetonitrile. Another technique of chromatography is the use of capillary micelle electrokinetic chromatography for the detection of food additives. Its detection method utilizes the hydrophobic core in the flow buffer to separate neutral solutes and point components based on the different hydrophobicity of the solute&Nbsp

3. The detection method of chromatography-mass spectrometry can also detect food additives through chromatography-mass spectrometry. This technology includes the high separation ability of liquid chromatography for complex samples, as well as a unique selective mass spectrometry technology. It presents strong analytical ability in food additive detection and can accurately obtain analytical results, which is widely used in the determination of food additives. By using the detection method of chromatography-mass spectrometry and gradient elution, separation, and detection of food additives, more than ten prohibited food additives in wine can be detected in a short period of time&Nbsp

4. Gas chromatography detection method: Gas chromatography is one of the more mature chromatographic methods and is commonly used for the detection of food additives. The main principle is to gasify the sample to be tested, then separate it with N2 carrier gas through a fixed phase, and detect it with corresponding detectors. Common detectors include FID, NPD, TCD, and ECD, which use gas chromatography hydrogen flame method to determine dehydroacetic acid, benzoic acid, and sorbic acid in food. Research has shown that the recovery rate of the aforementioned preservatives is between 96% and 104%. The gas chromatography method has a fast detection speed and is suitable for daily chemical analysis&Nbsp

5. Biosensor technology detection methods The application of biotechnology in food additive detection is also reflected, in which biotechnology utilizes biosensors for detection. In sensors, due to the presence of biometric components and signal converters, they can make excellent choices for complex food additive samples and have high sensitivity to different components. Through rapid and continuous detection, the components of food additives can be accurately analyzed, making them widely used in fields such as bioprocessing and food industry&Nbsp

6. High performance liquid chromatography detection method In the detection of food additives, high performance liquid chromatography is widely used in the laboratory for food additive detection. Before detection, the pH value of the tested solution needs to be adjusted, and impurities in the solution need to be removed through filtration. The method of constant volume membrane filtration is used for determination. If testing fruit juice, it is necessary to adjust the pH value of the tested solution to 6, and then use a certain amount of polyamide powder to stir thoroughly. Use methanol or formic acid solution to eliminate natural pigments in the tested solution, until the tested solution is washed to neutral through ammonia removal, and then perform constant volume membrane detection

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

BAIJIAN testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Our Competitive Edge:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China