Introduction: Proteins are mainly composed of amino acids, due to different combinations of amino acids to form various types of proteins. An estimated 100,000 human proteins are available. Life is the advanced form of material movement, which is achieved through protein. Therefore, protein has extremely important biological significance. The body's growth, development, exercise, genetic, reproductive and other life activities are inseparable from the protein. Life movement needs protein, but also inseparable from the protein. Protein deficiency: adults: muscle wasting, body immunity decreased, anemia, severe cases will have edema. Minors: growth and development stagnation, anemia, poor mental development, poor vision. Protein overdose: protein can not be stored in the body, more body can not be absorbed, excessive intake of protein, protein metabolism will be due to metabolic disorders and even death. Detection principle: According to GB 5009.5-2010 "National Food Safety Standard Determination of protein in food," the protein in food after extraction, and detection reagents react to generate colored compounds, with a detector measured at 590nm absorbance, within a certain range of absorbance and its content is proportional to . Specifications: Lower limit of detection: 0.5 mg KOH / g Linearity range: 0.5-10 mg KOH / g Steps: 1. Select the test mode: routine test 2. Sample preparation Weigh 1g minced samples in 20ml colorimetric tube, add the appropriate amount of pure water concussion extract 10min, filtered and add water to 10ml. 3. Control sample test ① take 3mL meat acid value detection solution in the colorimetric tube, accurately add 0.1mL sample solution, mix well; ② take 2.5ml control sample in the cuvette; ③ Put the cuvette into the designated first channel, press "contrast measurement". Note: A blank control experiment is required for each sample. 4. Test sample testing ① take 3mL meat acid value detection solution in the colorimetric tube, add 0.1ml of purified water, shake; ② take 2.5ml test sample in the cuvette; ③ Put the cuvette into the designated channel, press "Sample Measurement".
Introduction: Proteins are mainly composed of amino acids, due to different combinations of amino acids to form various types of proteins. An estimated 100,000 human proteins are available. Life is the advanced form of material movement, which is achieved through protein. Therefore, protein has extremely important biological significance. The body's growth, development, exercise, genetic, reproductive and other life activities are inseparable from the protein. Life movement needs protein, but also inseparable from the protein. Protein deficiency: adults: muscle wasting, body immunity decreased, anemia, severe cases will have edema. Minors: growth and development stagnation, anemia, poor mental development, poor vision. Protein overdose: protein can not be stored in the body, more body can not be absorbed, excessive intake of protein, protein metabolism will be due to metabolic disorders and even death.
