Pineapple (scientific name: Ananas comosus), commonly known as pineapple, is one of the tropical fruits. There are more than 70 varieties, which is one of the four famous fruits in Lingnan.
Pineapple originated in the Amazon River valley of Brazil and Paraguay in South America, and was introduced to China from Brazil in the16th century. Has spread to the whole tropical region. Its edible part is mainly composed of inflorescence axis with increased meat quality and flowers arranged spirally around it. Flowers are usually not strong, and persistent flowers are surrounded by lobes in a cavity in which atrophied stamens and styles are hidden. The fiber of leaves is very tough and can be used in textile, rope making, netting and paper making.
Although it does contain some salts in the common reagents that denature enzymes. But the "salt" here refers to the compound composed of metal cations and nonmetallic anions, and the "salt" commonly known as sodium chloride is only one of them, and it is only the kind that cannot inactivate bromelain. Only the salt composed of excessive metal can inactivate the enzyme, while sodium is the standard main group metal and has no such effect.