Plant nutrient composition testing is the detection and analysis of various nutrient content in plants to evaluate the nutritional value and quality of plants. The main aspects of plant nutrient testing are described below:
1. Moisture detection.
Moisture testing is a necessary part of plant nutrient testing, and by measuring the water content in plants, you can understand the growth status and quality of plants. Common measurement methods include the drying method and the moisture analyzer method.
2. Protein detection.
Protein detection is one of the important indicators for the detection of plant nutrients, and the nutritional value of plants can be understood by measuring the protein content in plants. Common measurement methods include Kjeldahl and spectrophotometry.
3. Fat testing.
Fat detection can understand the content and type of fat in plants, which is of great significance for evaluating the nutritional value and food quality of plants. Common measurement methods include Soxhlet extraction and chloroform solvent extraction.
Fourth, carbohydrate testing.
Carbohydrates are the main source of energy in plants**, and by measuring the carbohydrate content in plants, you can understand the growth and quality of plants. Common measurement methods include titration and spectrophotometry.
5. Cellulose detection.
Cellulose is the main component of plant cell walls, and by measuring the cellulose content in plants, we can understand the fiber quality and nutritional value of plants. Common measurement methods include acidolysis and enzymatic digestion.
6. Mineral testing.
Minerals are essential nutrients for plant growth, and by measuring the mineral content in plants, you can understand the nutritional value and quality of plants. Common measurement methods include atomic absorption spectrometry, atomic fluorescence spectroscopy, and inductively coupled plasma emission spectrometry.
7. Vitamin testing.
Vitamins are essential nutrients for the human body, and by measuring the vitamin content in plants, you can understand the nutritional value and quality of plants. Common measurement methods include high-performance liquid chromatography, gas chromatography, and spectrophotometry.
8. Phytic acid detection.
Phytic acid is an organic acid with antioxidant effect in plants, and by measuring the amount of phytic acid in plants, we can understand the antioxidant capacity and nutritional value of plants. Common measurement methods include high-performance liquid chromatography and spectrophotometry.
9. Antioxidant detection.
Antioxidants are substances in plants that can resist oxidative damage, and by measuring the content of antioxidants in plants, we can understand the antioxidant capacity and nutritional value of plants. Common measurement methods include spectrophotometry, high-performance liquid chromatography, and gas chromatography.
10. Pesticide residue detection.
Pesticide residues refer to the trace amounts of pesticides and their metabolites that remain in plants, soil and water after the use of pesticides. By measuring the amount of pesticide residues in plants, it is possible to understand the safety and quality of food. Common measurement methods include gas chromatography, high-performance liquid chromatography, and gas chromatography-mass spectrometry.
Ten. 1. Heavy metal detection.
Heavy metals refer to metal elements with a density greater than 5g cm3, such as lead, mercury, cadmium, etc. By measuring the heavy metal content in plants, the safety and quality of food can be understood. Common measurement methods include atomic absorption spectrometry, atomic fluorescence spectroscopy, and inductively coupled plasma emission spectrometry.
Ten. 2. Detection of other organic compounds.
In addition to the above detection indicators, other organic compounds in plants can also be detected and analyzed, such as flavonoids, polyphenolic compounds and organic acids. These compounds have antioxidant, anti-inflammatory, and antibacterial biological activities, which are of great significance for evaluating the nutritional value and quality of plants. Common measurement methods include high-performance liquid chromatography, gas chromatography, and gas chromatography-mass spectrometry.