CATDOLL : CATDOLL: What are the types of seaweed?

1. What are the varieties of seaweed?

Laver, also known as purple brocade, zygophyta, and suocai, belongs to the family of phytophyta. Laver is distributed all over the world and grows on rocks in the intertidal zone of shallow seas. Its growing season is from December to May of each year. There are many types of laver, and more than 70 types have been discovered. The main varieties include "altar laver", "spotted laver", "round laver", etc. Laver is also known as "immortal vegetable", "longevity vegetable", and "vitamin treasure house".

【Nutrition and efficacy】

One fifth of laver is dietary fiber, which can maintain intestinal health and excrete carcinogens from the body. Laver has an inhibitory effect on cancers such as intestinal cancer and has always been regarded as a seafood treasure. According to analysis, the dry product contains 20% to 35% crude protein, which is about 6 times that of rice, 3 times that of flour, and 2.6 times that of pork. Laver contains many types of amino acids in large quantities. Among them, glutamic acid makes it taste particularly delicious, natronic acid makes it taste like mushrooms, and inosinic acid and mannitol make it taste like fish floss and sweet. The content of potassium, iodine and iron in laver is relatively high, which is beneficial for preventing and treating hypertension and arteriosclerosis. Laver is rich in iodine, calcium, protein, vitamin A, vitamin B and other minerals. Regular consumption can remove cholesterol accumulated on the blood vessel wall, and has a certain effect on softening blood vessels and preventing arteriosclerosis. Laver also has medicinal value. "Compendium of Materia Medica" records that seaweed is sweet, cold in nature, can clear away heat, soften hard masses, nourish the stomach, and relieve edema. It is mainly used to treat goiter, edema, chronic tracheitis, wet athlete's foot, laryngitis, measles and other diseases.

[Health Tips] Brown, red, and moldy laver should not be eaten. In addition, laver contains a certain amount of uric acid in the blood, which can form urate crystals in the joints after being absorbed by the human body, aggravating the symptoms of arthritis. Therefore, arthritis patients should avoid eating it.

[Special Tips] Laver is a seafood product that is prone to moisture and deterioration. It should be packed in a food bag (preferably black) and placed in a low-temperature, dry place or refrigerator to preserve its flavor and nutritional value. When purchasing laver, dark purple, thin and shiny ones are fresher.

[Applicable amount] About 15 grams per day

【Suitable for】General people can eat it. Especially suitable for patients with hypertension and arteriosclerosis

Types of seaweed

According to processing method

Dried seaweed: Seaweed that has been processed once. It is generally used for food processing and simple rice wrapping, but can also be eaten directly.

Roasted seaweed: The finished product of dried seaweed after secondary deep processing, generally used in sushi cooking, food processing, etc., can also be eaten directly. No additives are added during the whole process, 100% natural.

Flavored seaweed: It is called seasoned seaweed in China. It is the finished product of dried seaweed after secondary deep processing. (Seasoning liquid is added during the processing) It is generally used as a snack food and eaten directly.

By industry quality level

It is generally divided into five grades: special, A, B, C, and D (special gold, silver, blue, and green).

Special grade is the best grade, with the best color and taste; it is generally used for export and domestic high-end restaurants. The price is naturally quite high. It is rarely sold in China. Among the several common types of seaweed for making sushi in China, C and D are generally the most common.

When distinguishing common grades in the domestic market, it is generally identified by packaging. The same series of seaweed will have different packaging colors; the different colors of gold, silver, blue and green packaging of standard seaweed companies correspond to different grades ABCD. It is recommended to consult carefully when purchasing. Products from regular manufacturers are recommended.

Note: The four grades of Sakura, Pine, Bamboo and Plum correspond to the ABCD in China, which are the definitions of nori grades by the Japanese Laver Association. They are the most stringent and rigorous classification levels for nori grades in Japan; they are the general standards for Japanese sushi nori. The highest domestic nori grade classification standard mainly refers to the Laver Association standard, which is the most detailed and rigorous nori grading standard in China.

3. The geographical division of the primary, secondary and tertiary industries: What are the laver processing industry, dairy farming industry, mining industry, transportation industry and telecommunications industry respectively?

The primary industry is agriculture, the secondary industry is industry, and the tertiary industry is the service industry.

Seaweed processing is the secondary industry

Dairy farming is the primary industry

Mining is the secondary industry

Transportation is the tertiary industry

Telecommunications is also a tertiary industry

4. Is there any simple way to improve memory?

What are some ways to improve memory?
1. Understanding memory training; understanding is the basis of memory, and understanding memory takes less time and has better effects.
Second, interest memory training: boring things can be made more vivid by making up stories, playing games, using formulas, homophones, etc.
3. Associative memory training; use proximity association, relational association and contrastive association to memorize.
4. Repeated memory training: The law of forgetting is fast at first and then slow. Therefore, after mastering it, you must continue to remember it repeatedly.
5. Collaborative memory training: In the memory process, the hands, brain, mouth, and ears participate together, and the effect will be better.
6. Systematically summarize memory training: Based on the analysis of the materials, organize and systematize the knowledge in the form of lists and outlines. This can improve the memory effect. The following are specific methods;
1. Understanding memory method. As the saying goes, if you want to remember, you must first understand. When reading or listening to a class, you should combine theory with practice, and use association to help understand scientific concepts or theorems, so that it is easy to consolidate and remember new knowledge. Someone once did an experiment and found that it took about 15-20 minutes to remember a 100-word article after understanding it. Otherwise, it would take nearly an hour or even more time.
2. Cover the key parts of the memory method. First, cover the content that you think is difficult to remember with paper, temporarily blocking yourself from seeing it, then read the rest of the content, and imagine the content of the covered part. If you really can't think of it, remove the covering paper. Repeat this several times and you will be able to remember it.
3. Classification memory method. In order to systematically and firmly grasp scientific knowledge, the various contents can be classified according to different meanings, properties, uses, structures, and forms. After classification, the content becomes simple and clear, which reduces the burden of memory, shortens the memory time, and improves the efficiency of learning.
4. Conversation memory method. When walking or chatting with classmates, you can use difficult problems in learning as the topic of conversation. You and I may be able to solve the difficult problems. This kind of activity can not only encourage everyone to actively explore and solve problems, cultivate a strong interest in learning, but also improve oral expression skills and enhance friendship among classmates. Through conversation, you can turn your unrooted and unconfident memories into certain and real memories, which will be firmly imprinted in your mind.
5. Repeat memory method. Repetition is the mother of learning, and repetition is one of the most powerful weapons to fight against forgetting. The forgetting law of psychologist Ebbinghaus tells us that forgetting is fast at first and then slow, and more at first and then less, so we should review in time. Ebbinghaus also told us that the degree of learning and memory should reach 150%, which will strengthen the memory. This method of "overlearning" can make the learned content last for a long time. Repetition not only has the function of repairing and consolidating memory, but also has the function of deepening understanding.
6. Comparative memory method. Its characteristic is to review and consolidate old knowledge while learning new knowledge. That is, when learning new knowledge, compare and connect with old knowledge, find out the similarities and differences between new and old knowledge and memorize them. In the process of repeated comparison and comparison, the memory of old knowledge and the understanding of new knowledge are deepened, and it is easier to remember after understanding.
7. List memory method. This method is widely used. It is to classify and collect relevant materials and put them in the appropriate position in the table. Often a table is sorted out, the organization is clear, and the content is remembered. There are many types of lists, and the commonly used ones are list tables, system tables, relationship tables, comparison tables, etc.
8. Summarization memory method. In order to facilitate memory, you need to summarize what you have learned and find out its key points and main contents. This memory method can also cultivate your thinking ability and the ability to comprehensively analyze problems.