lactase enzyme造句

• If lactose is not digested by the lactase enzyme and absorbed, it will be metabolized by bacteria in the gut that generate hydrogen gas.
• Lactase enzymes similar to those produced in the small intestines of humans are produced industrially by fungi of the genus " Aspergillus ".
• Many adult humans lack the lactase enzyme, which has the same function of beta-gal, so they are not able to properly digest dairy products.
• This is evident in examining the mammalian lactase gene ( " LCT " ), which decreases in expression after the weaning stage, resulting in a lowered production of lactase enzymes.
• But one finding has baffled biologists : The gene for the lactase enzyme, as well as the gene's promoter _ a neighboring region of DNA that controls the activity of the gene _ shows no significant difference between populations whose adults can digest lactose and those whose adults cannot.
• Twenty-five to 28 percent of American adults do not digest lactose because of insufficient lactase enzyme, he said, " but having lactase maldigestion doesn't necessarily mean avoiding dairy foods, as we have been saying for some time and as this new study suggests, " he added.
• The way it's supposed to work in nature is that baby mammals produce the lactase enzyme and can drink and digest milk just fine-it's necessary that they can do that because immediately after birth, milk is the only food they have-that's the defining feature of a mammal after all!
• ""'Kluyveromyces marxianus " "'is a species of yeast in the genus " Kluyveromyces ", and is the sexual form ( teleomorph ) and proper name of " Candida kefyr " . " K . marxianus " is used commercially to produce the lactase enzyme similar to the use of other fungi such as those in the genus " Aspergillus ".