Introduction of the principle of determination of crude fat in Flammulina velutipes

Introduction of the principle of determination of crude fat in Flammulina velutipes

Flammulina velutipes is a kind of edible mushroom and it is now popular in major hotels. It is loved by friends of all major diners because of its rich nutritional value. Flammulina velutipes is widely distributed in nature and is distributed in China, Japan, and Europe. Flammulina does not contain chlorophyll and does not have photosynthesis. It absorbs nutrients such as carbohydrates, proteins and fats directly from the outside and belongs to the saprophytic and nutritional type. However, Flammulina velutipes has a high medicinal therapeutic value. Its amino acid content is very high, as well as its protein, carbohydrate and crude fiber content, which are quite high. Among them, if you want to determine the crude fiber content in Flammulina velutipes, you can use the crude fiber analyzer to determine the crude fiber content in plants more accurately.

In addition to the above nutrients, the mushroom also contains a certain amount of fat. This article mainly analyzes the principle of measuring crude fat content in Flammulina velutipes and related equipment. I hope to have a little inspiration for my friends in need.

The principle of crude fat content determination:

The direct method in fat soxhlet extraction method is to use the organic solvent to extract the fats in the sample in the Soxhlet extractor. After the extract is dried and weighed, the crude fat in the sample can be calculated. The content. Soxhlet extraction method for the determination of crude fat content. Fats are widely found in the seeds and fruits of many plants. The determination of fat content can be used as an indicator to identify the quality of the product. There are many methods for the determination of fat content, such as extraction, acid hydrolysis, specific gravity, refractometry, electrometry, and nuclear magnetic resonance. At present, extraction methods are widely used at home and abroad. The Soxhlet extractor method is a well-recognized classical method and is the preferred standard method for grain and oil distribution in China.

Instrumental application of crude fat content determination:

Electric blast drying box; Glass mortar: Prepared mortar; Scissors and knives; Soxhlet extractor: 250 mL; Absorbent cotton; Crude fat analyzer, SZF-06B fat analyzer; Analytical sieve: 0.42 mm (40 mesh) and aperture 0.84 mm (20 mesh) sieve; wide mouth bottle: with ground mouth; dryer: drying color-changing silicone inside; electric hot water bath: equipped with ordinary thermometer; filter paper: medium speed, aluminum box: inner diameter 53 mm; height 32 mm or similar, with cover, small plant crusher: metal mesh with 1 mm aperture. Filter paper: medium speed; Analytical balance: Sensitivity 0.00 01 g; Brown reagent bottle: 1 000 mL.