Plum is a fruit,Its pH will vary depending on the variety, growing environment, maturity and other factors. In general, unripe plums are acidic, while ripe plums may be weakly alkaline.
Chemically, an acidic substance refers to a substance that is capable of giving protons, while an alkaline substance is a substance that is capable of accepting protons. For fruits, if they contain more acidic substances, their pH is lower and they are acidic; Conversely, if they contain more alkaline substances, its pH value is higher and alkaline.
Prunes are rich in organic acids, such as citric acid, malic acid, etc., which are more abundant in unripe plums, so they make unripe plums appear sour and acidic. However, as plums mature, the content of organic acids gradually decreases, while other alkaline substances, such as potassium, sodium, calcium and other ions, gradually increase, making ripe plums appear weakly alkaline.
In addition, the variety and growing environment of plums can also affect their pH. Some varieties of plums may contain more acidic substances, while others varieties may contain more alkaline substances. At the same time, factors such as soil and water quality in the growing environment may also have an impact on the pH of plums.
Overall, the pH of plums will vary depending on factors such as variety, growing environment, ripeness, etc. To know the pH of a particular variety of plums, the pH value can be determined. But in daily life, we can judge the pH of plums by tasting them. If the taste of a plum is very sour, it has a low pH and is acidic; If the taste is sweet or weakly alkaline, it has a higher pH and is weakly alkaline.