Biology books say that there are many alkaline substances in fruits, but fruits are not mostly acidi

The acidity and alkalinity of food are not based on taste, but the result of absorption and metabolism of food in the body after digestion and absorption. If there are more phosphates, sulfates, chloride ions and other ions produced after food metabolism, it is easy to form acids in the body, resulting in acidic reactions. If there are more sodium ions, potassium ions, magnesium ions, and calcium ions, it is easy to produce more alkali in the body and form an alkaline reaction.

This has to do with the mineral content of the food. Generally speaking, foods that contain more minerals such as sulfur and phosphorus are acidic foods; Foods that contain more minerals such as potassium, calcium, and magnesium are alkaline foods. The pH of food can be determined experimentally.

To put it simply, it is to dry and burn the food to ashes, and then neutralize it with acid and alkali titration. Generally, grains, beans, eggs, meat, etc., contain more sulfur and phosphorus than potassium, calcium, and magnesium, so they are called acidic foods; Vegetables and fruits contain more potassium, calcium, and magnesium than sulfur and phosphorus, so they are called alkaline foods. Milk is rich in phosphorus, but it is more calcium, so it is an alkaline food.

Table salt is made of sodium chloride, which dissociates as many chloride ions and sodium ions in the body, which is just the acid-base balance, so it is a neutral food. Foods such as sugar, oil, vinegar and tea contain very little minerals and can therefore be considered neutral. As for soft drinks, they are acidic because phosphorus is added during the manufacturing process.

To summarize simply, most of the animal foods are acidic foods except milk; Among the plant foods, except for grains, grains and legumes, most of them are alkaline foods; Salt, oil, sugar, coffee, tea, etc., are all neutral foods. However, there are a few exceptions: for example, plums are supposed to be alkaline foods, but the organic acids they contain cannot be metabolized by the human body, so they remain in the body and exhibit acidic reactions.

Oranges or lemons are different, they contain organic acids that can be metabolized by the human body and are alkaline foods.

In fact, you need to understand one thing: sour taste does not equal acidity! Very sour substances are converted into metal ions when we eat them, and we know some metal ions. As. Potassium.

They are alkaline.

Therefore, the fruit is alkaline. Another example is that Danpi is acidic, but it becomes an alkaline substance after it enters the human body!

It depends. Fruits are acidic and alkaline, and are generally sweet, mostly acidic; Those with more acidic tastes are mostly alkaline foods. Sweet fruits such as bananas and apples are acidic; Sour fruits such as grapes, grapefruits, lemons, and oranges are alkaline foods.

Fruits: Fruits are edible plant fruits that are juicy and have a predominantly sweet and sour taste. Fruits are not only rich in vitamins and nutrients, but also can promote digestion.

Kiwifruit, fresh dates, strawberries, loquats, oranges, oranges, persimmons, blueberries, etc. are rich in vitamin C. Based on the vitamin C content of 100 grams of fruit, kiwifruit contains 420 mg, fresh dates contain 380 mg, strawberries contain 80 mg, oranges contain 49 mg, loquat contains 36 mg, and oranges and persimmons contain 30 mg each. Bananas, peaches contain 10 mg each, grapes, figs, and apples contain only 5 mg each, and pears contain only 4 mg.

The acidity and alkalinity of foods are not correlated with their taste, which means that foods that taste sour or acidic.

The acidity and alkalinity of food is not determined by our sense of taste, but by its mineral content.

Acidic food is an acidic food when it is metabolized in the human body to produce ions such as sulfuric acid, hydrochloric acid, phosphoric acid, and lactate. For example, animal offal, muscle, fat, protein, etc. After food is metabolized in the human body, it produces calcium, potassium, sodium, magnesium and other ions are alkaline foods, such as:

Tea, cabbage, persimmons, cucumbers, carrots, spinach, cabbage, lettuce, taro, kelp, raisins, etc.

The fruit is alkaline.

Fruits are classified as acidic, neutral and alkaline depending on the composition they contain. The main components of alkaline fruits are calcium, sodium, potassium and magnesium, which are essential for human movement and brain activity. Alkaline fruits mainly include sour horn, lemon, orange, grapefruit, grapefruit, sugar cane, green plum, apple, tomato, etc.

Although these fruits are mostly acidic in taste, they become alkaline during metabolism in the body after ingestion.

Introduction: 1. Keep the bag or sleeve of each fruit to prevent rubbing.

2. Wrapped in plastic wrap, oxygen is needed during the ripening of the fruit, and the place with more oxygen content will accelerate the decay of the fruit. After wrapping in plastic wrap, the amount of oxygen can be properly controlled to reduce the rate of fruit decay.

3. The temperature should not be too high, because too high temperature will accelerate the reproduction rate of destructive microorganisms and aggravate the decay and deterioration of fruits.

4. Do not stack densely, the fruit will produce ethylene in the process of ripening, ethylene has the effect of ripening the fruit, if the fruit is stacked together, the ethylene produced will gather, the fruit will ripen quickly, rot quickly.

5. Clean before eating, the pectin on the skin of the fruit has the effect of resisting microorganisms, and cleaning will remove it, so that the fruit loses moisture and is perishable.

1.into acidic fruits.

Foods containing moderate or large amounts of protein have more acid-forming elements than alkaline elements, but milk and some dairy products contain sufficient calcium and have an alkaline reaction. Although whole grains do not contain high protein quality, they also react acidically because they contain excess phosphorus in the form of phytate. Although most fruits produce alkaline ash, plums, plums, and cranberries are net acidic in the human body because they contain organic acids that cannot be metabolized by the human body and go directly into the urine.

2.into alkaline fruits.

Fruits and vegetables are alkaline foods because of their low protein content and generally contain higher alkaline elements than acid-forming elements. People may wonder how fruits with a prominent sour taste, such as tomatoes, citrus, grapes, etc., can be classified as alkaline foods. Because they contain organic acids (steanoic acid, ascorbic acid, oxalic acid, and other acids) that are completely metabolized into carbon dioxide, water, and energy in the body.

Citrus, watermelon, grapes, bananas, strawberries, persimmons, hawthorn, tomatoes, plums, tomatoes, egg whites, prunes, pears, apples, lemons.

3.into acidic foods.

Ham officinalis. Cream. Egg.

Sea bream. Shrimp. Abalone.

Clam. Octopus. Macaroni, beef.

Pork, tuna, oysters, cheese, rice, wheat, bread, wine, peanuts, sausages. Candy. Biscuits.

Sugar. 4.Alkaline foods.

Soybeans, tofu, spinach, lettuce, radish, potatoes, onions, kelp, milk, celery, tomatoes. Cucumber. Turnip.

Carrot. Fig. Taro.

Konjac weak, potato. Cabbage. Lu Xun.

Bamboo shoots. Viburnums. Mushrooms.

Pumpkin. Lotus root. Radish pickles, red beans.

Alkaline male acid female.