Nutritionists analyze high price supplements, abalone protein content and eggs almost.
seafood market many merchants sell sea cucumbers, Abalone reporter Zhang Gang, reporter Zhao Shangmei
a number of banquet recipes, abalone, sea cucumber, shark fin must have one of them, only a dish, a person should be dozens or even hundreds of yuan, a table is often thousands. "In fact, from the nutritional point of view, abalone and other common seafood are not much different, and protein content is even the same as eggs." Du Huizhen, director of the Nutrition Department of Qianfo Hill hospital in Shandong Province, said that many nutritious foods, including abalone, did not have nutritional value corresponding to their prices.
abalone and ordinary seafood are almost
"rich like 'serve'," the abalone has the meaning of "surpluses". The bigger it is, the more difficult it is, the more face the people who eat. On the table, abalone can show its face and show its grades. On the other hand, it can also make a good choice. Du Huizhen said that things are scarce and expensive. From the perspective of Western medicine, abalone is not nutritious, but "scarce".
Du Huizhen said that abalone has a very different protein content compared with eggs, but eggs provide more energy; fat and cholesterol are high in eggs, but abalone is more than two times as high as eggs in carbohydrates; abalone contains calcium, iron and selenium, and eggs contain vitamin A, B1, B2, and so on. In fact, in terms of nutrition, abalone is not much different from other common seafood, such as calcium, iron, zinc, sodium, selenium, vitamins and so on.
the protein content of sea cucumber and common fish is
to lift sea cucumber. Many merchants regard high protein and high nutrition as the selling point. Many sea cucumber products claim that the protein content is 55%, and some are even up to 90%. In fact, this is a misunderstanding. Wang Weiwei, nutritionist of the Nutrition Department of No.2 Affiliated Hospital of Shandong University, said that the amount of nutrition does not simply refer to the amount of protein, but the quality of protein, that is, the content of high quality protein. "Chinese food composition table 2002" points out that the protein content of dried sea cucumber is 50.2%, fresh sea cucumber, because the content of water is as many as 77.1%, so its protein content is only 16.5%. The value is equivalent to the common fish or shrimp. When eating, the dried sea cucumber needs water, water, and blisters. The water content increases to 93.5%, and the protein content is only 6%, which is only half the egg protein content. "The most important thing is that the nutritional value of sea cucumber protein is low, not high quality protein." Wang Weiwei said that the protein of sea cucumber is mainly collagen, which is seriously deficient in tryptophan, one of the essential amino acids.
the collagen content of shark fin is less than that of pigskin,
from the point of view of nutriology, shark fin does not have special nutritional value, and the main component is collagen. Experts in nutrition believe that pigskin jelly can be regarded as a common food instead of shark fin. If the content of collagen from shark fin is not as large as that of pig skin. Each 100g porcine skin jelly contains collagen 26.4g, while each 100g fin contains only 22.2g protein.