Soup in the end make no calcium? On the one hand people still boil the bones in the soup, soup brewed by one expert that the calcium a day to drink 400 bowl, soup and even some experts direct negative calcium. This really allows people screenwriters.
"The detection of a bowl of pig soup that contained only 1.9 mg of calcium, and menopausal women need 1000 mg of calcium per day is far from, if the soup to meet the calcium alone, then she at least every bone soup bowl to drink 400 days. "internet search, many articles will be used in a similar text.
It touches people very interested in the following two experiments, one is the direct use of a pressure cooker to stick the bone stewed pig, a Food and Drug Research Institute is doing related experiments.
Experiment 1:
Boil stick bone, calcium only the fourth time
People's Liberation Army 309 Hospital, Nutrition Department, Zhang Ye did an experiment: stick with 2.5 kg pork bone, add 2 liters of water and 10 ml of vinegar, put a pressure cooker stew, stew until the pressure up after 20 minutes. The soup and meat on the bone after stick, then add the same 2.5 liters of water and 10 ml of vinegar, the same stew in a pressure cooker for 20 minutes. And so forth.
Zhang Ye told reporters that she is paper with a reagent to determine whether calcium, if there is calcium, the reagent paper will be white, white more clearly illustrates the higher calcium content, but the specific content can not be determined. She found Tom in the first three did not calcium. Until the fourth, a large number of calcium from the bar will be gradually boiled bones, to 10 times when the calcium content will gradually decrease to 14 times after the calcium is completely gone.
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