Where does the breakdown of lactose normally occur in the bo

Where does the breakdown of lactose normally occur in the body? From what organism is the lactose we are using in our experiment derived? Based on your answer to question 5. What is the temperature and pH of this environment?

Solution

5. Lactose is a sugar constitute of galactose and glucose and is found in milk. It is degraded by an enzyme lactase (-D-galactosidase) secreted by the intestinal villi secrete the enzyme. Thus lactose is degraded in Intestines.

6. Generally, for the experiments, commercial Lactase is extracted both from yeasts such as Kluyveromyces fragilis and Kluyveromyces lactis and as well as from molds, such as Aspergillus niger and Aspergillus oryzae.

7. Functions of Lactase best at the temperature between approximately 70 and 120 degrees Fahrenheit. The optimal pH for lactase is around 6 but lactase also can function in an acidic environment between a pH of 2 to 7,