Cold water pot, after the water is turned on for 5 minutes, boiled eggs are both killed by harmful pathogens, but also more complete preservation of nutrients.
If the eggs are cooked in boiling water for more than 10 minutes, a series of chemical changes will occur inside. The protein structure becomes more compact and does not easily come in contact with protein digestive enzymes in gastric juice, so it is more difficult to digest. In addition, the long-term heating of methionine in eggs will decompose sulphides and react with the iron in the egg yolk to form iron sulfide that is not easily absorbed by the human body, resulting in more nutrient losses.
You can also master the following techniques when cooking eggs to prevent the loss of nutrients:
1. The water must not have eggs, otherwise the protein will not coagulate easily if it is not immersed in water, which will affect digestion;
2, before cooking, put the eggs into cold water for a while to reduce the egg pressure; then use a medium heat, cold water to boil, you can prevent eggshell rupture, to avoid loss of nutrients.
API Powder is fully defined in ICH Q7A as any substance or mixture of substances intended for use in the manufacture of pharmaceutical products and, when used in pharmaceutical products, as an active ingredient of pharmaceutical products. Such substances have pharmacological activities or other direct effects in the diagnosis, treatment, symptom relief, management or prevention of disease, or can affect the function or structure of the body. The active ingredient of a medicine. Only when an API is processed into a pharmaceutical preparation can it become a medicine for clinical application.
According to its source, apis are divided into chemical synthetic drugs and natural chemical drugs.
Chemical synthetic drugs can be divided into inorganic synthetic drugs and organic synthetic drugs. Inorganic synthetic drugs are inorganic compounds (very few are elements), such as aluminum hydroxide and magnesium trisilicate for the treatment of gastric and duodenal ulcer, etc. Organic synthetic drugs are mainly made of basic organic chemical raw materials, through a series of organic chemical reactions and drugs (such as aspirin, chloramphenicol, caffeine, etc.).
Natural chemical drugs can also be divided into biochemical drugs and phytochemical drugs according to their sources. Antibiotics are generally produced by microbial fermentation and belong to the category of biochemistry. In recent years, a variety of semi-synthetic antibiotics are the combination of biosynthesis and chemical synthesis products. Among apis, organic synthetic drugs account for the largest proportion of variety, yield and output value, which is the main pillar of chemical pharmaceutical industry. The quality of the API determines the quality of the preparation, so its quality standards are very strict. All countries in the world have formulated strict national pharmacopoeia standards and quality control methods for the widely used APIS.
Specific API after processing -- pharmaceutical preparations
The term API is used mainly in relation to the finished product. Mainly raw materials obtained by chemical processing means, supply raw materials for the production of finished drugs. For example, cefpirome sulfate for injection is a drug, then cefpirome sulfate is an API
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