Seaweed is a collective name for algae that are alternated in the sea. Laver is a marine red algae. The fronds consist of a layer of cells embedded in a thin layer of gelatine, dark brown, red or purple. At the same time the seaweed can also be used as medicine, made of traditional Chinese medicine, with phlegm Ruanjian, heat and water, Bushenyangxin effect.
Porphyra is an algae, Porphyra haitanensis T.J. chang et B. F. Zheng., P. yezoensis Ueda., P. suborbiculata Kjellm., and Laver. (P. tenera Kjellm.) A variety of wild seaweed such as algae. Purple algae, generally 12-30 cm high. The cultured algae is mainly distributed in the coasts of Zhejiang and Fujian. The range of the cultured Porphyra yezoensis is small, mainly in Nantong City and Lianyungang City along the coast of Jiangsu Province.
An edible population of phyllophytes in the laver. Laver is rich in nutrients, its protein content exceeds kelp, and contains more carotene and riboflavin. Each 100g of dry laver contains protein 24~28g, fat 0.9g, carbohydrate 31~50g, calcium 330mg, phosphorus 440mg, iron 32mg, carotene 1.23mg, riboflavin 2.07mg, niacin 5.1mg, alanine 3.4 g of acid, 3.2 g of glutamic acid, 2.4 g of glycine, 2.6 g of leucine, and 1.4 g of isoleucine. The contents of protein, iron, phosphorus, calcium, riboflavin, and carotene are among the highest in various vegetables. , so seaweed has a "trophy treasure" reputation.
(1) Proteins and amino acids Laver bioactive substances are very important for plant life activities. Consumption of seaweed generally protein content of 24% -28%, far higher than the average vegetable, and the body's essential amino acid content. The compositional amino acids of seaweed proteins such as alanine, aspartic acid, glutamic acid, glycine, proline, etc. are neutral and have more acidic amino acids, which is not characteristic of all terrestrial vegetable plants.
(2) Fat Compared with terrestrial plants, seaweed has a low fat content of less than 1%. In the fat of seaweed, palmitic acid accounts for the vast majority of saturated fatty acids, approximately 20%; Fatty acid content is less, accounting for 2%; unsaturated fats that have good health effects on the human body—linoleic acid, linolenic acid, or stearidonic acid content—are 10%–30%, and C20 The above highly unsaturated fatty acids also have a certain content. Even better, the content of eicosapentaenoic acid in seaweed compared to "brain gold" is as high as 30%.
(3) Vitamin seaweed contains a variety of vitamins, and the content of B vitamins is comparable to that of vegetables. The B vitamins in seaweeds, especially in terrestrial plants, have a high content of vitamin B12. On dry matter, vitamin B12 is similar to fish and vitamin C is also high. Vitamin B12 has active brain nerves, prevents aging and memory loss, and improves the efficacy of depression.
(4) Inorganic matter Because seawater contains extremely rich inorganic components, the laver also has the function of absorbing and accumulating inorganic substances in seawater, and these laver are rich in inorganic content.