How to use Lactase in a sentence
In this activity, students immobilize the lactase in calcium alginate beads held within a small column, over which the milk is passed.
Transient relative lactase deficiency in younger infants may be a cause of some cases of infant colic.
In some cases, children are born without the ability to produce lactase.
In order for lactose to be digested, the body produces an enzyme called lactase.
In humans, the body produces less lactase after the age of two.Advertisement
Reactions to lactose are due to a deficiency of the enzyme lactase, which the body needs in order to digest lactose.
The environmental changes that led to a selection for lactase persistence especially in Northwestern Europeans is my main interest.
If you are lacking the enzyme lactase, you will not be able to digest the milk sugar lactose.
Lactase is the enzyme that your body needs to successfully digest milk and dairy products.
Lactose intolerance occurs when, due to a deficiency of lactase, lactose is not completely broken down and consequently blood sugar levels do not rise.Advertisement
Lactose intolerance is also referred to as lactase deficiency, milk intolerance, dairy product intolerance, or disaccharidase deficiency.
However, individuals who are mildly or moderately deficient in the production of the lactase enzyme may not exhibit symptoms of lactose intolerance.
For most people, however, lactase deficiency develops naturally because, after about two years of age, the body produces less lactase.
Before humans became dairy farmers, they usually did not continue to drink milk, so their bodies did not produce lactase after early childhood.
Since there is no treatment that can improve the body's ability to produce lactase, treatment for lactose deficiency is focused on controlling the diet.Advertisement
Toddlers may drink rice or soymilk, while older children who are sensitive to lactose can take lactase enzymes, which are available without a prescription.
If the milk is heated first and double the amount of lactase liquid enzymes is added, the milk will be 90 percent lactose-free.
In the early 2000s, researchers have developed a chewable lactase enzyme tablet.
They may also add lactase enzymes to dairy products to reduce lactose content as well as use lactose-reduced dairy products.
However, people can prevent symptoms by managing the condition with diet and lactase supplements.Advertisement
Children with lactose intolerance have a lactase deficiency that keeps them from processing milk and milk products.
Deficiencies in enzymes other than lactase are extremely rare.
Usually they are named by adding ase to the name of the substance they act on (for example, lactase is the enzyme needed to process lactose).
Intestinal lactase enzymes usually decrease naturally with age, but this occurs at varying degrees.
In the case of a lactase deficiency, undigested milk sugar remains in the intestine, which is then fermented by the normal intestinal bacteria.Advertisement
Lactase deficiency causes gastrointestinal distress to begin about 30 minutes to two hours after eating or drinking foods containing lactose.
For those who are sensitive to even very small amounts of lactose, the lactase enzyme supplement is available without a prescription.
Heating the milk speeds the process, and doubling the amount of lactase liquid will result in milk that is 90 percent lactose free.
Chewable lactase enzyme tablets are also available.
Currently, formulas made from soy are recommended for infants with galactosemia, primary and secondary lactase deficiency and for families choosing a vegetarian lifestyle.
The enzyme lactase, which is normally produced by cells lining the small intestine, breaks down lactose into substances that can be absorbed into the bloodstream.
When dairy products are ingested, the lactose reaches the digestive system and is broken down by lactase into the simpler sugars glucose and galactose, which can then be absorbed into the bloodstream.
Lactose intolerance can be caused by some diseases of the digestive system (for example, celiac sprue and gastroenteritis) and by injuries to the small intestine that result in a decreased production of lactase.
Using the liquid form of lactase enzymes, children can add a few drops in their milk, put the milk in the refrigerator and drink it after 24 hours, when the lactase enzymes have reduced the lactose content by 70 percent.
People with celiac disease may also experience lactose intolerance because they do not produce enough of the enzyme lactase, which breaks down the sugar in milk into a form the body can absorb.
The enzymes lactase, maltase, and isomaltase (or sucrase) are needed to break down the disaccharides; when one or more is inadequate, the result is carbohydrate intolerance.
Alactasia is a very rare congenital condition and the result of a genetic defect that causes the complete absence of lactase, the enzyme needed to digest milk sugar.
In cancer patients, treatment with radiation therapy or chemotherapy may affect the cells in the intestine that normally secrete lactase, leading to intolerance.