Fat is an indispensable nutrient for human beings. If you blindly avoid fat elements, it will cause a series of problems such as malnutrition. Moreover, the level of fat content is also an important indicator of food quality and nutritional value. Therefore, fat determination has long been a routine analysis item for food and feed. The fat analyzer can accurately determine the fat content in food. The crude fat content in food directly affects its use. For example, soybeans with high crude fat content are mostly used for oil extraction, and the remaining soybean meal is used as feed, etc.; soybeans with low oil output are mostly used for food processing.
The standard method is used to determine the crude fat content in food. First, the constant weight receiving bottle is used, and then the sample to be tested is extracted with anhydrous ether or petroleum ether. After the extraction, the anhydrous ether or petroleum ether is recovered and evaporated to dryness, and then the constant weight receiving bottle is passed. The crude fat content of the food was calculated by weighing the receiving bottle before and after extraction. Improved method constant weight sample + filter paper tube, then soak the sample with anhydrous ether or petroleum ether, after the extraction is completed, then the sample + filter paper tube after constant weight extraction, by weighing the change in the weight of the sample + filter paper tube before and after extraction, calculate the food crude. fat content. The improved method can not only overcome the systematic errors caused by the long-term use of the receiving bottle, but also improve the accuracy of the analysis and determination results, and can also improve the analysis accuracy and reduce the cost, and is suitable for the determination of crude fat in food.
It is understandable that this traditional measurement method is also possible, but it will also bring a lot of workload. If it can be detected with a fat meter, it is simple and accurate, and it can be said to be the best way.
Spring new: three chamber independent differential pressure method of gas transmission tester
Three-chamber independent differential pressure gas transmission tester is designed and manufactured according to the relevant provisions of GB1038 national standard technical requirements, and can meet the test requirements of ASTMD1434, ISO2556, ISO15105-1, JIS K7126-A, YBB00082003 international standards. It is suitable for measuring the gas permeability, solubility coefficient, diffusion coefficient and permeability coefficient of all kinds of film, composite film and sheet material at various temperatures. It can provide reliable and scientific data reference for scientific research and new product development.
Three chamber independent pressure difference method of gas transmission tester features:
1, imported high-precision vacuum sensor, high test accuracy;
2, the three test chamber is completely independent, can test three kinds of same or different samples;
3. Precision valve and pipe parts, complete sealing, high speed vacuum, complete desorption, reduce test error;
4, precision pressure control, wide range to maintain the pressure difference between high and low pressure chamber;
5, provide the proportion and fuzzy dual test process judgment mode;
6, the system adopts computer control, the whole test process is completed automatically;
7, equipped with USB universal data interface, convenient data transfer;
8.The software follows the PRINCIPLE of GMP permission management and has the functions of user management, permission management, data audit tracking and so on.
Post time: Mar-20-2022
