The function of alum is as follows:
1. Antibacterial effect: Alum can inhibit a variety of Gram-negative and Gram-positive cocci and bacilli; It has a strong antibacterial effect on common purulent bacteria. Experiments show that alum can inhibit Staphylococcus aureus and Proteus. Some in vitro experiments show that alum or dried alum has a strong inhibitory effect on Trichophyton rubrum and Microsporum wool.
2. Convergence and solid removal: Alum water has a strong convergence effect. Alum is very irritating when taken orally, and can be used externally to stop sweating; It can also treat leukorrhagia and ulcer (the concentration is 1% ~ 5%).
3. The function of coagulation protein: Alum meets protein and precipitates into insoluble compounds. Alum water can precipitate serum immediately in vitro, which has a strong coagulation protein effect. This product can be used to stop bleeding. It is reported that alum and catechu can be taken orally to treat pulmonary tuberculosis hemoptysis, and platinum pills made of alum and turmeric are effective for experimental hyperlipidemia in rabbits.
4. Choleretic effect: Alum 0.6g/kg given to duodenum can obviously increase bile flow in anesthetized rats.
5. Local stimulation: The local stimulation is very large. Local injection of 0.3-0.5 ml 15% solution made rabbits manic, swollen and ulcerated locally. Intravenous injection of 0.3ml caused chills, shortness of breath, purple peripheral blood vessels and hypoxia in rabbits.
Extended data:
Excessive consumption of alum for a long time will be harmful to your health.
Shimou, an operator of a breakfast shop in Shihezi City, Xinjiang Uygur Autonomous Region, added too much alum (including aluminum potassium sulfate) when making fried dough sticks. He was accused of producing and selling food that did not meet the safety standards and was brought a criminal incidental civil public interest lawsuit by the Shihezi City Procuratorate. On May 10, the case was heard in public in Shihezi City Court, which was the first public interest litigation case in the field of food and drug safety in Xinjiang.
After investigation, from September, 2065438 to September, 2006, Shimou excessively added alum (including aluminum potassium sulfate) to make fried dough sticks in the process of operating breakfast. After sampling inspection by the Food and Drug Administration, it was found that the aluminum residue in fried dough sticks was 1 158mg/kg, while the maximum aluminum residue allowed by the state was 100mg/kg, and Shimou fried dough sticks exceeded the standard 1 1 times.
Shihezi City Procuratorate believes that Shimou is not only suspected of producing and selling food that does not meet safety standards, but also infringes on the legitimate rights and interests of many unspecified consumers and harms the interests of the public. Therefore, he should not only bear the corresponding criminal responsibility, but also publicly apologize to consumers for his behavior of damaging public welfare in Shihezi Daily.
Baidu encyclopedia-alum
People's Daily Online-Does the breakfast shop owner only need to bear criminal responsibility for selling fritters with excessive aluminum?