A small portion is illuminated at a time which increases the contrast and decreases the out-of-focus blur. As compared to the Laser Scanning (LS) method, the LSCM focuses the illumination on specific positions of the sample. This method is used in food analysis and research as an addition to chemical and physical analysis of food samples. Laser Scanning Confocal Microscopy (LSCM) It is of great importance, and advisable, that a food preparation and nutrition expert performs the analysis. This approach does not consider the effects of cooking and processing on the food which can dramatically alter the content. This analysis is limited by the selection of ingredients available in the food database. How Can Ultrasound be Used to Regulate Foods?.Intelligent Food Packaging with a Starch/Polyaniline Biopolymer.Using the same quantity and quality of ingredients in standardized recipes yield the same results in the nutrition analysis. Standardized recipes are ones that are adapted and retrieved for use by a foodservice operation. However, the quality of the analysis largely depends on how accurate and standardized the recipes are. This technique allows the user to determine the nutritional content of food. Moreover, salt can be added during food preparation which increases the final sodium content of the dish.įood item sampling, food analysis and results interpretation require specialized expertise. For example, added fats increase calorie content during frying and decrease during grilling. This is of extreme value as calories tend to increase or decrease during the cooking process depending on the method used. The analysis accounts for the changes in nutritional value that occur due to the cooking and processing of the food. The laboratory analysis measures the actual levels of nutrients in the prepared food, thus providing a high level of accuracy of the analysis. By utilizing scientific methods and equipment the food sample is analyzed for the different components that compose the nutritional information needed. Laboratory Analysisįor this approach, food companies send samples of food to laboratories for physical analysis. There are a variety of certified methods used for performing nutritional analysis. It ensures compliance with trade and food laws. It is a vital part of analytical chemistry that provides information about the chemical composition, processing, quality control and contamination of food. Nutritional analysis is the process of determining the nutritional content of food.
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