Pineapple put in salt water to soak mainly to inhibit the activity of pineapple enzyme, to avoid direct consumption of the oral mucosa to produce a certain degree of irritation.

Pineapple contains three harmful components - glycosides and pineapple protease, glycosides on the human skin and oral mucosa has an irritating effect, eating untreated pineapple mouth will feel itchy. At the same time, pineapple protease is a sensitizing substance, and the oral mucosa, gum contact and other delicate parts of the contact will decompose part of the skin proteins, resulting in burning skin surface, swelling, soreness.

Nutritional value

Pineapple fruit quality, nutrient-rich, containing a large amount of fructose, glucose, vitamin B, C, phosphorus, citric acid and protease and other substances.

Each 100 grams of pineapple contains 87.1 grams of water, 0.5 grams of protein, 0.1 grams of fat, 1.2 grams of fiber, 0.1 milligrams of nicotinic acid, potassium 126 milligrams of sodium 1.2 milligrams of zinc 0.08 milligrams of carbohydrates 8.5 grams of calcium 20 milligrams of phosphorus 6 milligrams of iron 0.2 milligrams of carotenoids 0.08 milligrams of thiamine 0.03 milligrams, riboflavin 0.02 mg, vitamin C 8-30 mg, 0.3 g of ash, another variety of organic acids and pineapple enzymes.