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Gastric juice has a ph of 1.3-6.0 depending on how recently you've consumed a meal, what that meal was, and other factors.
Acid (Hcl) is secreted by the parietal cells of the stomach. In the stomach the food itself and saliva from mouth (this is little alkaline) regulates acidity of the stomach. But acid in normal quantity is needed for digestion, specially for meats, hard and solid foods.
pH of stomach juice is between 1 and 2.
The normal range of acidity of stomach acid is 1.5 to 3.5 on the pH scale. On that scale, a neutral substance measures at 7.
The normal pH of the stomach is about 2-3 and is caused by a high concentration of HCl secreted by the parietal cells of the stomach.
The optimum pH for tryspin is about 8.0, which is the pH of the intestine, whereas the pH of gastric juice is 1.5-2.0, which is highly acidic.
The optimum pH for tryspin is about 8.0, which is the pH of the intestine, whereas the pH of gastric juice is 1.5-2.0, which is highly acidic.
between 1.5 and 1.7
Stomach acid is not very strong compared to chemical acids available on the market. One thing that has about the same pH as stomach acid is lemon juice.
Orange juice has a pH of about 2.8.*Human gastric juice in our stomach has a pH of about 1.4. For comparison, human gastric juice has an H+ concentration of more than ten times that of orange juice.
It is about pH 1 to 2. The gastric acid in our stomach (mainly consisting of hydrochloric acid, HCl) is at this pH level. The acidic medium is necessary for the digestive enzymes, such as those involved in the digestion of proteins, in gastric juice to work.
1.5 to 3.5, normal is closer to 2