The lack of lactose can pose a hazard to the population of all ages and is related to the nutritional and health problems of the world's population. How to solve this problem has been increasingly valued by many scholars at home and abroad. Currently, a variety of measures have been taken to improve lactose intolerance.
Improve eating habits.
Studies have shown that the strength of lactose intolerance is related to the amount of lactose intake, gastric emptying time, intestinal transit time and colonic flora. Studies have shown that the daily intake of a certain amount of lactose can reduce bloating, diarrhea in babies , and can make lactose malabsorption tolerate large doses of regular lactose.
He believes that there are three reasons for this: One is that the sensitivity of different individuals to lactose intolerance is different. Second, the high-dose lactose free milk powder in the test is divided into three small doses and taken together with other foods. The absorption of lactose has a great influence;
Thirdly, the yield of hydrogen in the test group is significantly lower than that of the control group, indicating that the lactose adaptability of the one of the gut flora is colonic flora can be gradually enhanced. People with lactose intolerance are more resistant to lactose ingestion with other foods than lactose, which is usually able to tolerate 6 g of lactose in one dose.
Therefore, people with lactose intolerance can take a certain amount of lactose daily, gradually increase the amount of lactose intake and consume other foods (especially meat or solid foods) while eating high lactose foods. It is also possible to replace dairy products with high lactose content with yogurt and fermented cheese. By improving these eating habits, the symptoms of lactose intolerance will gradually diminish.
Production of low lactose dairy products. To eliminate the effects of lactose on patients with lactose intolerance and increase the intake of dairy products, researchers at home and abroad have done a lot of work on lactose in cow's milk for many years, including treating milk, removing or destroying it. lactose. Mainly include ultrafiltration concentrated milk, enzymatic hydrolysis of lactose milk, fermented milk, production of low lactose milk by bioreactor.
Ultrafiltration concentrated milk ultrafiltration is a new separation technology that emerged in the 1970s. It is easy to operate and low in cost. It uses a semi-permeable ultrafiltration membrane with a molecular weight of about 10,000 to concentrate milk, lactose, and other small molecules. The organics are filtered off and the protein is concentrated. Concentrated milk preserves other nutrients in the milk and has little lactose.
It is suitable for adults who are lactose intolerant, but not suitable for infants who are breast-based. This method also removes a variety of minerals and vitamins.
This method of fermented milk is an effective measure to solve the problem of social lactose deficiency. Yogurt is produced by fermenting lactic acid bacteria. The bacterium contained in the yogurt has β- galactoside sugar, which can decompose lactose and facilitate the absorption of the body. However, yogurt cannot solve the body's lactase deficiency from the roots and can only be used as a substitute for dairy products such as milk. Yogurt is not like everyone, and it is not easy for infants to feed.
Nowadays, the problem of absorption and utilization of lactose is gradually attracting people's attention. Consumers reduce and avoid lactose intolerance through changes in their eating habits. Dairy manufacturers are exploring new products and introducing new technologies to reduce lactose content in dairy products while maximizing the protection of other nutrients. There are many types and methods for producing low-lactose products in the dairy industry today, including ultrafiltration concentrated milk, fermented milk, enzymatic decomposition of lactose milk, and the use of bioreactors to produce low locatose free milk.
In China, a high incidence area of lactose intolerance, the incidence of lactase deficiency in children is also high. Therefore, research on the solution to lactose intolerance is of great practical significance for solving the health problems of Chinese people.