How to identify high-quality laver? What should you pay attention to when buying laver?

In recent issues, we have been sharing with you common knowledge about seaweed, so that you can learn more about seaweed, have a clearer understanding of seaweed selection, eating methods, dietary precautions, etc. in life, and help people live a healthier life!

Contents of this article

1. How to identify high-quality laver

2. What should I pay attention to when buying seaweed?

3. What are the nutritional components of seaweed?

How to identify high-quality laver

1. Smell: If the seaweed has the aroma of seaweed, it means that the seaweed is of good quality and has not been polluted or deteriorated. If it has fishy, ​​moldy or other odors, it means that the seaweed has become stale.

2. Look: If the laver is thin and evenly distributed, shiny, purple-brown or purple-red, it means that the laver is of good quality; if the laver is uneven in thickness, has poor glossiness, is red and mixed with green, it means that the laver is of poor quality.

3. Touch: Dry and sand-free laver is good quality. If it feels damp, it means the laver has become damp; if it feels sandy, it means there are too many impurities in the laver. Both of these situations indicate that the laver is of poor quality.

What to pay attention to when buying seaweed

1. Pay attention to the color. Purple-red is the best color. If the color is red, the vegetable is tender. If the color is black, it may be old seaweed from the previous year.

2. Pay attention to integrity. There should be no obvious small holes or missing corners. If there are small holes, it may be damaged during storage and transportation, which will affect the quality. Good laver has a high density, so don't choose laver that falls apart when you pinch it.

3. Be careful of old laver. Some unscrupulous vendors in the market now smear old laver with cooking oil and sell it as new laver. If you wipe it with a handkerchief, there will be oil stains on the paper. Old laver has no fragrance and has a fishy smell when you eat it.

What are the nutritional components of seaweed

The nutritional components and effects of seaweed are as follows:

1. Laver has a high iodine content and can treat goiter caused by iodine deficiency. Laver has the function of softening and dispersing lumps, and is also useful for other stagnation and accumulation.

2. It is rich in choline, calcium and iron, which can enhance memory, improve anemia in women and children, and promote the growth and health of bones and teeth; it contains a certain amount of mannitol and can be used as a supplementary food for the treatment of edema.

3. The polysaccharides contained in seaweed can significantly enhance cellular immunity and humoral immunity, promote lymphocyte transformation, and improve the body's immunity; it can significantly reduce the total content of serum cholesterol.

4. Nori has the function of absorbing and accumulating inorganic matter in seawater because it is extremely rich in inorganic matter.