World Journal of Food Science and Engineering is an international, peer-reviewed open access journal dedicated to advancing research the field of food science and engineering. The journal provides a rapid publication process to ensure wide dissemination of high-quality articles to scientists, professionals, and interested individuals worldwide. Our goal is to serve as an efficient, reliable, and trusted platform for scholars and readers, publishing cutting-edge research in the field.
Abstract: [Objective]: To optimize the graphite furnace atomic absorption spectrometry, compare the effects of blank pork matrix and 1% nitric acid as solvent on the detection of lead in pork, and establish a method for quantitative detection of lead in pork. [Methods]: The graphite furnace heating program and matrix modifier were optimized, and the method was screened. The results of three-level standard addition test and quality control product test of these two solvents were compared. [Results]: Under the screening conditions, with blank pork matrix as solvent, the correlation coefficient of the standard curve was 0.9999, the recovery rate of the three levels was 91.9% ~ 97.9%, and the coefficient of variation was 4.9% ~ 13.1%. The detection limit was 0.0134 mg / Kg. The test results of quality control products were within the allowable range; the test results with 1% nitric acid as solvent did not meet the standard requirements. [Conclusion]: Under the screening conditions, the accurate detection of lead in pork can be achieved by graphite furnace atomic absorption spectrometry with blank pork matrix as solvent.Abstract: [Objective]: To optimize the graphite furnace atomic absorption spectrometry, compare the effects of blank pork matrix and 1% nitric acid as solvent on the detection of lead in pork, and establish a method for quantitative detection of lead in pork. [Methods]: The graphite furnace heating program and matrix modifier were optimized, and the method w...Learn More
Abstract: Milk is rich in various nutrients, including functional proteins, which have many benefits for human health. However, milk must undergo heat treatment before being marketed. The stronger the heat treatment of milk, the greater the loss of functional proteins. Lactulose is one of the important heat sensitive indicators in milk, which can indicate the heat treatment intensity of milk. The Animal Husbandry Department of the Ministry of Agriculture proposed to conduct lactulose detection on pasteurized milk. However, the current method cannot quickly meet business needs due to complex operation, long detection time, and the need to convert enzyme activity. Therefore, a lactulose rapid detection kit is used to improve detection efficiency and shorten detection time while ensuring the accuracy of detection results. This article provides a detailed introduction to the detection method of lactulose test kit (Fushen) from the aspects of laboratory material preparation, key steps and precautions in detection operation, and comparative data analysis. It is concluded that the test kit method is superior to traditional detection methods in terms of accuracy, detection time, ease of operation, and detection cost.Abstract: Milk is rich in various nutrients, including functional proteins, which have many benefits for human health. However, milk must undergo heat treatment before being marketed. The stronger the heat treatment of milk, the greater the loss of functional proteins. Lactulose is one of the important heat sensitive indicators in milk, which can indicate th...Learn More