Research on the Effects of Various Beverages on the pH of Saliva

I would like to try three kinds of beverages, coffee and soft drink. For each test, there are two strips that eventually count as six tests. Experimentation predicted that the pH measured value of saliva will not change even when taking water. This is because water is considered to be neutral (7.0), and it is difficult to see the difference. Regarding the soft drink test, I predict that my saliva pH will drop considerably. I am trying to consume a cola can, and the pH of this particular soft drink is 525, it will be checked as an acidic beverage in the pH range.

Digestion is a complex process controlled by several factors. pH plays an important role in the normal functions of the gastrointestinal tract. In the mouth, throat and esophagus, the pH is usually about 6.8, which is very weakly acidic. Saliva controls the pH of this area of ​​the digestive tract. Saliva contains salivary amylase and begins to decompose carbohydrates into monosaccharides. Most digestive enzymes are pH sensitive and degenerate in high pH or low pH environments. In the small intestine, the duodenum provides an important pH balance for activating digestive enzymes. The liver secretes bile in the duodenum to neutralize the acidic condition from the stomach and the pancreatic duct is drained into the duodenum and bicarbonate is added to neutralize the acidic chyme, . The mucosal tissue of the small intestine is alkaline, pH is about 8.5.

Saliva helps chew and swallow, contains enzymes (saliva lipase) and starch (saliva amylase) that break down fats and participates in the nitrogen circulation of rumen. The most important function of saliva is to buffer the pH in the reticular layer and lumen. A mature cow produces up to 50 quarts of saliva per day, depending on the time it takes to chew the feed to stimulate the production of saliva. Feed and feed are mixed with saliva containing sodium, potassium, phosphate, bicarbonate and urea to form a bolus. Next, the bolus moves from the oral cavity to the mesh through a tubular passage called the esophagus. Muscle contraction and pressure differentials move these substances from the esophagus to the mesh

Extensive chemical process of digestion begins in the mouth. When biting food, saliva made of salivary glands mixes with food. Saliva is an aqueous substance made in the mouth of many animals. There are three major glands secreting saliva: the parotid, submandibular and sublingual. Saliva contains mucus that moisturizes food and buffers the pH of food. Saliva also contains immunoglobulins and lysozyme. They have an antibacterial effect and reduce caries by suppressing the growth of specific bacteria. In addition, saliva contains an enzyme called salivary amylase. This will start converting the starch in the food into a disaccharide called maltose. Another enzyme, lipase, is produced by the lingual cells. It is a member of the class of enzymes that break down triglycerides. Lipase of the tongue starts to degrade the fat component in food. Tongue helps swallow by moving bolus from mouth to pharynx