Zazie Hoko
The nests of seabirds in Jin Siyan are mostly built on cliffs in tropical and subtropical coastal areas. Jin Siyan began to lay eggs in spring, and his mouth secreted a sticky saliva, which was dried by the sea breeze and turned into a translucent yellowish substance, also known as bird's nest. Because the formation of natural bird's nest will produce impurities such as feathers or sand, the bird's nest needs to be sorted, soaked, cleaned and depilated after collection, and then shaped, heated, dried and packaged to make edible bird's nest. In a word, the main component of bird's nest is swallowing saliva.
According to the analysis of nutritional data, the content of protein is not as good as that of common meat products such as beef and soybean. In addition, the protein contained in bird's nest is mainly collagen, which belongs to incomplete protein and lacks the essential amino acid (tryptophan) needed by human body. Compared with eggs and ordinary meat, the nutritional value of bird's nest does not mean that bird's nest has any magic power. Salicylic acid is also called bird's nest acid, and its chemical name is N- acetylneuraminic acid. Bird's nest does contain a large amount of sialic acid, which can reach 3%~ 15% of the dry weight of bird's nest according to some current testing data.
Zazie Hoko
However, sialic acid is widely found in humans and animals, not just bird's nest. People can synthesize sialic acid without ingesting it at all, even if they want to eat fish or pig brain. Now the health function of bird's nest is the result of some animal experiments. But animal experiments are very different from people's normal diet, and we ordinary people only eat it once in a while, and the amount is very small, and we can hardly eat any healthy fish. There is not enough evidence to show that eating bird's nest can make you beautiful.
According to modern nutritional analysis, bird's nest contains protein 50%, carbohydrate 30%, iron 5%, other minerals 3% and cellulose 1.4%. Protein of bird's nest is mainly mucin secreted by epithelial cells, which contains only 1 essential amino acid and three conditionally essential amino acids, among which only lysine is the amino acid needed by human body, and there are three conditionally essential amino acids, that is, the human body has great differences in the required amino acids, and most of them are non-essential amino acids that human body can synthesize by itself. However, there are eight kinds of amino acids needed by human body and 13 kinds of essential amino acids, so the nutritional value of bird's nest in protein is very low.
Zazie Hoko
In addition, the carbohydrates contained in bird's nest are found in many foods, and the content of flavonoids and flavonoids is not high, and the components and functions are relatively simple. Unlike other foods we eat, bird's nest is mostly whole-cell food, which is rich in various raw materials needed for organic life. Therefore, from the perspective of nutritional value, bird's nest is only a low-grade food with very limited nutritional value.
In any case, people have different views on bird's nest. If you think it works, that's a good thing. If you look down on it, no matter how expensive it is, you will feel wasted. It depends on the individual.