Apple is a kind of fruit, belonging to the genus Malus of Rosaceae, and the tree is a deciduous tree.

Apple fruit is rich in minerals and vitamins, and it is one of the fruits that people often eat. Value: Apple is a low-calorie food, producing only 60 kilocalories per100g.

Apple is known as "living water" because of its high solubility and easy absorption by human body. It is beneficial to dissolve sulfur and make skin smooth and tender.

Apples also contain elements such as copper, iodine, manganese, zinc and potassium. Without these elements, the skin will be dry, fragile and itchy. Efficacy: Apple contains more potassium, which can be combined with excess sodium salt in human body and excreted.

When the human body ingests too much sodium salt, eating some apples is beneficial to balance the electrolytes in the body. The phosphorus, iron and other elements contained in apples are easily absorbed by the intestinal wall, which has the functions of nourishing the brain, calming the nerves and helping sleep.

Clinical application has proved that patients with depression have greatly improved their mood and relaxed spirit. After smelling the fragrance of apples, the sense of depression disappears. China is the largest producer and consumer of apples in the world, accounting for more than 40% of the world's planting area and output, and occupies an important position in the world's apple industry.

2. Some knowledge about Apple

Nowadays, commercial apples originated in Europe, Central Asia, West Asia and Turkey, and were introduced to China in19th century.

Rosaceae (Malinae) is a large family, and it is difficult to determine the time of its appearance. There are about 7500 varieties in the world, which are sweet, sour and nutritious, and are one of the fruits suitable for all ages.

The most famous one is its medicinal value, and people have different opinions. As we all know, the so-called fame is different in different parts of nature. The so-called medicinal value depends on who eats it, and of course it is different. But the most famous apple is of course the one that Eve ate.

The water content of fresh apples with nutritional value is 85%. Apples are rich in carbohydrates, vitamins and trace elements.

Especially the content of vitamin A and carotene is higher. The influence on disease and health is rich in water-soluble dietary fiber-pectin.

Pectin has the functions of protecting intestinal wall, activating beneficial bacteria in intestinal tract, regulating gastrointestinal function, absorbing water, eliminating constipation, stabilizing blood sugar, beautifying skin, adsorbing bile and cholesterol, and can effectively prevent hyperlipidemia, hypertension and hyperglycemia, clean intestinal tract and prevent colorectal cancer. Malic acid and citric acid in apple sour taste can improve gastric juice secretion and promote digestion.

Malic acid can also stabilize blood sugar and prevent diabetes, so diabetics should eat sour apples. Apples are rich in potassium, which can prevent and treat hypertension.

China people's salt intake is seriously excessive, which leads to the retention of sodium and water in the body and promotes hypertension. Potassium can increase the excretion of sodium from the kidney and reduce the content of sodium in cells, thus lowering blood pressure.

Potassium can also dilate blood vessels, and together with pectin can prevent metabolic syndrome. Apples can also prevent cancer and lead poisoning.

Apple juice has a strong effect on killing infectious viruses. People who eat more apples are much less likely to catch a cold than those who don't eat or eat less apples. Therefore, some scientists and doctors call apples "all-round healthy fruits" or "general practitioners".

Now the air pollution is more serious. Eating more apples can improve the respiratory system and lung function, and protect the lungs from pollution and smoke. Apple has a natural and pleasant aroma, which has obvious effect of eliminating depression.

Traditional Chinese medicine believes that apples are flat in nature and have the effects of nourishing the heart and moistening the lungs, promoting fluid production and detoxifying, benefiting qi and regulating the stomach, sobering up and calming the liver. Eating should avoid apples and seafood.

Apples contain tannic acid. Eating with seafood not only reduces the nutritional value of seafood protein, but also tends to have symptoms such as abdominal pain, nausea and vomiting. Similarly, other fruits with more tannins, such as strawberries, bayberries, persimmons, pomegranates, lemons, grapes and sour pomelo, should not be eaten with seafood.

Apples are rich in nutrition. Chewing slowly when eating apples is not only conducive to digestion, but also conducive to reducing human diseases. Expectant mothers eat an apple every day, which can reduce the reaction during pregnancy.

Methods of purchasing, preserving and eating There are many kinds of apples, with different appearance and pulp characteristics, and their applicability in seasons and various uses is also quite different. Fresh apples should be solid, crisp and beautiful in color; Mature apples have certain fragrance, compact texture and easy storage; Immature apples have bad color and no fragrance, and may shrink after storage; Overripe apples droop easily when pressed lightly on the surface.

Apple will have internal damage and collision scars after being frozen for a period of time. Irregular brown or brown spots will not seriously affect the eating quality of apples.

Apples that grow without bagging are unsightly in appearance, but have high sugar content. From early spring to summer, apples in this period are all stored apples, so the taste is not very fresh.

The skin of fresh apples is sticky, and you can see a layer of frost. This is not because of waxing, but a layer of natural waxy substance, which can protect apples. Besides, some apples taste as sweet as honey. This is because a special kind of sugar will be formed in fruit after being fully irradiated by sunlight. This kind of sugar has high osmotic pressure and can absorb water from surrounding tissues, so it tastes like honey.

Apples can be kept fresh for 7~ 10 days in the shade, and can be kept fresh for longer if they are put into plastic bags and put in the refrigerator. If you have extra apples, you can make them into candied fruit or jam and keep them in the refrigerator.

If immature kiwifruit or pear is put into a plastic bag with apples, the ethylene released by apples can make other fruits mature and make kiwifruit and pear soft. But if apples are put together with other mature fruits and vegetables, they will accelerate the decay, so they should be avoided.

Precautions for eating apples After cutting or peeling, apples can be soaked in light salt water or sprinkled with lemon juice to prevent discoloration. Vitamins, pectin and other effective ingredients in apples are mostly contained in and near the peel, so apples should be washed and eaten, and try not to peel them.

Apple with no pesticide and low pesticide is preferred. Related recipes and foods are served with shredded apples, and apples are peeled and cut into pieces; Heat a proper amount of oil in a wok, pour in white sugar, simmer until the sugar is thin, then add diced apples, turn them repeatedly until the sugar is hanging, and then take them out of the wok and serve.

The dish has the effects of appetizing, harmonizing stomach and prolonging life, and is suitable for people with poor appetite. Suitable for people, ordinary people can eat.

"An apple a day" is a well-known health slogan. Indeed, apples are rich in sugars, organic acids, cellulose, vitamins, minerals, polyphenols and flavonoids, and are called "all-round healthy fruits" by scientists.

So, what health care function makes it win such a good reputation? Hypolipidemic: The human experiment of Japan Fruit Research Institute showed that after eating two apples a day, the blood triglyceride level of the subjects decreased by 265,438+0% after three weeks, and the high triglyceride level was the chief culprit of arteriosclerosis. After apple pectin enters the human body, it can combine with bile acids, absorb excess cholesterol and triglycerides like a sponge, and then excrete it.

At the same time, the acetic acid decomposed by apple is beneficial to the catabolism of these two substances. In addition, vitamins, fructose and magnesium in apples can also reduce their content.

Lowering blood pressure: Excessive sodium is an important factor causing hypertension and stroke. Apples contain enough potassium, which can be combined with excess sodium in the body and excreted, thus lowering blood pressure.

At the same time, potassium ions can effectively protect blood vessels and reduce height.

About some fruit common sense, the more detailed, the better.

When sick, most people take medicine as the most direct treatment. However, any medicine will harm your body and liver more or less. Everyone has heard that eating too many fruits and vegetables is very helpful to health. In fact, Hippocrates, the father of medicine, once advocated that "food is the best medicine". Some diseases will restrict your diet, but natural fruits and vegetables are good for you, especially now you can buy all kinds of delicious and healthy fruits and vegetables all year round. Why not use them, not only to enjoy the sweetness, but also to alleviate the discomfort of the disease, without worrying about any side effects?

Anemia: grapes, oranges, tomatoes, apples, strawberries and cherries.

High cholesterol: mangosteen, walnut

Hypertension: grapes, oranges, tomatoes, apples, walnuts, avocados, bananas, watermelons, persimmons, pears and peaches.

Atherosclerosis: oranges, tomatoes, apples, strawberries, walnuts and bananas.

Vascular obesity: oranges, tomatoes, apples, strawberries, walnuts and bananas.

Stroke: apples, persimmons, pineapples, kiwis.

Heart disease: apples, walnuts, avocados, bananas, watermelons, pears, pineapples and kiwis.

Diabetes: tomatoes, avocados, watermelons, pears, peaches, guava and loquat.

When people reach middle age, most people will gradually become obese. There are many reasons, such as insufficient labor force, poor metabolism, overeating, overnutrition and subcutaneous fat accumulation.

Bronchitis: grapes, apples, strawberries, cherries, persimmons, pears, pineapples and loquats.

Asthma: grapes, peaches

Ulcer: avocado, banana, pear

Gastritis: grapes, apples and avocados.

Enteritis: grapes, tomatoes, apples, bananas, pineapples, guava.

Diarrhea: apples

Indigestion: papaya

Hemorrhoids: apples, bananas, persimmons and peaches.

The lively Spring Festival has passed, and the fundamental thing to recuperate is: don't overeat, eat less greasy food, eat more vegetables and fruits, and eat more "scraping" food to ensure the health of the stomach.

Liver disease: grapes, oranges, bananas, plums.

Cystitis: watermelon and peach

Urethral calculus: watermelon, kiwi fruit, plum

Urethritis: grapes

Kidney disease: grapes, oranges, apples, strawberries, cantaloupes.

Endocrine disorders: grapes, apples, papaya, cantaloupe.

In today's society, the work is busy, the life is tense, and the physical and mental consumption is high. Most young people are overdrawn. There will be some signs of "premature aging" to varying degrees, that is, the so-called "fatigue syndrome" and "sub-health" state.

Back pain: watermelon, pear, citrus

Low back pain: watermelon, pear and citrus

Arthritis: grapes, loquat

Gout: pineapple, kiwi

Skin diseases: tomatoes, apples, strawberries, walnuts, papaya.

Oral inflammation: oranges, pears, guava

Dental diseases: oranges, strawberries

Cold: strawberry, pineapple, loquat, lemon.

Antiemesis for pregnant women: pears

Now everyone is inevitably delicious and delicious, but eating too much will inevitably lead to gastrointestinal discomfort. Especially, the acid-base imbalance in modern people's diet is serious, which makes everyone's body "poisoned" deeply.

Generally speaking, cold fruits are:

Watermelon, pear, grapefruit, grapefruit, coconut, orange, hard persimmon, mangosteen and tomato.

Hot fruits are:

Longan, litchi, mango, durian.

Flat fruits are:

Guava, apple, grape, orange, papaya, strawberry, cherry, mulberry.

When you are unwell, you will catch a cold, and you should eat less cold and hot fruits. You can eat more fruit at this time.

4. 50 questions about fruit knowledge are urgently needed.

1 pear, 2 orange, 3 apple, 4 peach, 5 apricot, 6 persimmon, 7 cantaloupe, 8 watermelon, 9 banana,1grape,1/lemon, 12 jujube, 13. The role of plums 17 What fruits can't be eaten on an empty stomach 18 spring fruits 19 summer fruits 20 autumn fruits 2 1 winter fruits 22 spring fruits can't be eaten 23 summer fruits can't be eaten 24 autumn fruits 26 pears 27 oranges 28 apples 29 peaches 30 apricots 3654 38+0 persimmons 32 cantaloupes 33 watermelons 34 bananas 35. 48 autumn fruit can't be eaten?

5. 50 topics in urgent need of fruit knowledge

The role of 1 pear

2 The role of oranges

3 The role of apples

4 the role of peaches

5 the role of apricot

6 the role of persimmon

7 the role of cantaloupe

8 the role of watermelon

9 the role of bananas

10 grape function

1 1 the function of lemon

The function of 12 jujube

13 the role of plums

14 the function of strawberry

15 Functions of Cherry

16 the role of Lan Mei

17 which fruits can't be eaten on an empty stomach?

18 spring fruit

19 summer fruit

20 kinds of autumn fruits

2 1 winter fruit

Can't you eat fruit in spring?

Can't you eat fruit in summer?

Can't autumn fruits be eaten?

Can't you eat fruit in winter?

26 the role of pears

27 the role of oranges

28 the role of apples

29 the role of peaches

The role of 30 apricots

3 1 persimmon function

32 the function of cantaloupe

33 the role of watermelon

34 the role of bananas

35 the role of grapes

The role of lemon

Function of 37 red dates

The role of plums

39 the role of strawberries

40 The role of Lan Mei

4 1 What fruits can't be eaten on an empty stomach?

42 the fruit of spring

43 Summer Fruit

44 Qiuguo

45 fruit in winter

Can't you eat fruit in spring?

Can't you eat fruit in summer?

Can't autumn fruits be eaten?

Can't you eat fruit in winter?

The role of 50 cherries

6. Encyclopedia of Fruit Knowledge

An apple a day keeps the doctor away. Chronic diarrhea due to deficiency and cold of spleen and stomach needs to be wrapped in tin foil and cooked. Pectin contains the most fructose, organic acids, pectin and trace elements 1. Pectin is a kind of soluble fiber, which can promote cholesterol metabolism, reduce cholesterol level and promote fat excretion. 2. Trace elements: potassium dilates blood vessels, which is beneficial to patients with hypertension; Zinc deficiency will lead to disorder of blood sugar metabolism and decline of sexual function.

3. Can organize the stomach: fiber helps to excrete; It also has astringent effect on diarrhea. 4. Apple peel+a few slices of ginger boiled water: can stop vomiting.

5. It can reduce the coldness of pears and strengthen moistening the lungs and stomach. Papaya Papaya is a sweet, flat and slightly cold proteolytic enzyme.

1. contains enzymes similar to human growth hormone. Eating more can keep you young. 2. Protease helps to decompose protein and starch, which is of great benefit to the digestive system.

3. In addition to helping digestion, it can also relieve summer heat, quench thirst, moisten the lungs and relieve cough, which is helpful for colds, coughs, constipation and chronic bronchitis. Cooked papaya+persimmon soup can cure asthma and cough, peeled cooked papaya+steamed honey can cure lung dryness and cough, and raw papaya can be juiced or dried and ground into powder to repel insects.

Papaya boiled fish tails or trotters to promote milk secretion. Watermelon cold, stomach cold, pregnant women, people with slight fever and cold foundation are not suitable.

Strong and hot people are suitable. If you accidentally eat too much, you will feel dizzy and bored. You can keep pears with a slice of ginger. Clearing heat is good. People with cold constitution, deficiency cold, cold and cough should not eat raw. Must be steamed over water, or put in soup, or stewed with herbs.

Swan pear, fragrant pear and tribute pear are cold; Coarse-skinned sand pears and imported pears are cooler. Eat too much sore throat, apricot, pear (cold)+tremella (cold) boiled sugar water to cure dry mouth.

But it is more suitable for people who need to clear away heat due to excess heat or deficiency fire. South and North Apricot, Pear (Same Cold)+Bulbus Fritillariae Cirrhosae 9 grams of boiled sugar water, strong lung qi.

North and South apricot, pear (with cold)+lily sugar boiled, nourishing yin and calming the nerves. Mango should not be eaten more. It has medicinal value, is mild in nature and sweet in taste, and quenches thirst and produces fluid.

People with damp toxicity, skin diseases or tumors should avoid eating (eczema/pus/gynecological diseases/edema/beriberi-wet people will get worse if they eat mango), which may be the contraindication of allergic asthma. A few fruits are rich in protein, which make you full if you eat too much.

1. 2. Detoxify stagnation and lower blood pressure.

3. Stop vomiting and treat seasickness. Pregnant women are disgusting.

Kiwi/Kiwi can prevent cancer. Eating while coughing may aggravate the illness. 1. Vitamin C is 20-80 times higher than that of apple and 5- 10 times higher than that of citrus. This antioxidant can effectively prevent the formation of carcinogen nitrite in human body.

2。 Adjust middle qi and lower qi.

Nourishing and strengthening the body, clearing away heat and diuresis, clearing stomach and moistening dryness. 3. Treat internal heat upset, prevent and treat scurvy, hypertension, cardiovascular diseases, cancer, etc.

He has unique skills in treating digestive tract cancer and lung cancer. Mangosteen should eat less for people with cold constitution and deficiency, but not more.

Don't eat with watermelon, soybean milk, beer, Chinese cabbage, mustard, bitter gourd, wax gourd, lotus leaf soup and other cold things. If you accidentally eat too much, cook ginger tea with brown sugar to solve it.

Pineapple produces fluid, and the stomach is damp and hot. Patients with sensitive trachea or bronchus should avoid eating.

It is necessary to soak salt water to decompose some organic acids and reduce their toxicity. 1. rich in fiber, can * * * intestines.

It has astringent effect, and moderate diarrhea is helpful to stop diarrhea. 2. Healthy spleen and stomach, strong vitality.

Pineapple cups break down protein in the stomach and help digestion. 3. Feeling uncomfortable in the throat after a meal is an allergic symptom, and you need to drink a cup of light salt water to dilute the allergenic ingredients.

Durian tonic due to deficiency of cold can strengthen yang and help fire if it is used in the recovery period of cancer or fever, dermatosis or liver heat due to yin deficiency. Postpartum deficiency and cold can be used as tonic.

If you eat too much, you can immediately eat a few mangosteen to solve the fire of litchi. Not suitable for people with yang deficiency, excess heat and yin deficiency with excessive fire (dermatosis, dry mouth, insomnia). Gout and diabetes patients should not eat more.

Those with peaceful constitution or deficiency-cold can fully enjoy it. For those who overeat, eat cold watermelon or drink a bowl of lotus leaf and melon water. The mild coconut meat can tonify yang fire and strengthen the body, which is suitable for those who are weak, weak and tired.

Too much heat in the body is not appropriate. High in fat and protein.

Stewed chicken with coconut and glutinous rice has nourishing effect. Coconut water+Radix Adenophorae+Lily+Dendrobium = clearing away heat and nourishing yin coconut water+winter melon seeds = purging lung fire coconut water+cool tremella or nourishing yellow ear lemon. Lemon tea is not suitable for women with fruit stomach disease.

1. Lemon juice+warm water+salt = expectorant effect, stronger than oranges and oranges. 2. Early stage of cold: lemon+honey washing = relieving sore throat/relieving dry throat discomfort 3. Can protect the fetus [suitable for mother and child], beauty beauty, remove spots, prevent pigmentation, improve uterine anteversion, uterine ligament prolapse and even amenorrhea 4. Clean lemon can lower blood pressure and cholesterol and improve cardiovascular system.

Longan tonic is not suitable for everyone to eat internal heat and phlegm. People with gout eat too much and cause joint swelling and pain.

People with asthma and fever should not eat more, because they have lung heat, cough, dry heat, skin disease and abdominal distension. 1. Nourishing blood and calming the nerves after sun drying has a great effect on insomnia (endless heartbeat and easy fatigue) caused by insufficient heart blood.

Persimmons are all sweet and cold in the stomach, and those who are weak, spleen and kidney deficient in cold, and exogenous cold are forbidden to eat. It is best to peel and eat to prevent iron absorption.

The content of vitamins and sugar is 1. It is 0/-2 times higher than ordinary fruit/kloc-. Clearing away heat and vexation, quenching thirst and promoting fluid production, moistening lung and resolving phlegm, and treating heat cough.

2. Persimmons are mainly used for hiccups and nocturia. 3. persimmon leaf tea contains a lot of vitamin c, which has the functions of lowering blood pressure, protecting cardiovascular system and treating insomnia.

4. Persimmons are flat, moistening the lungs and regulating qi. 5. Frosting on persimmon: a specific medicine for dry throat and stomatitis. Banana has the characteristics of lowering blood pressure, relaxing bowels, sweet taste and cold nature, and is suitable for people who are hot and dry.

It is not suitable for people who are weak, afraid of cold, diarrhea due to spleen deficiency, cold and cough (not suitable for people with stomach cold/nephritis/swollen feet during pregnancy) and rich in starch. 1. Clear away heat and moisten intestines, and promote gastrointestinal peristalsis.

2. Rich in potassium, lowering blood pressure. Banana stewed rock sugar = cure long-term cough guava dehumidification and diarrhea; People with liver heat and sweetness should be careful to prevent constipation, eat without cores or cooperate with fruits such as grapefruit rich in fiber.

Promote fluid production to quench thirst, relieve annoyance and diarrhea, treat insects and regulate urine sugar. Sugarcane is cool in clearing the heart and moistening the lungs, and it is not advisable to drink more because of deficiency and cold.

Black-skinned cane: mild and nourishing, not suitable for those with burning throat; Green sugarcane: sweet and cool, relieving lung heat and stomach heat. People with cold phlegm (white and thin) should not drink alcohol.

1. Moisturizes throat, promotes fluid production, and relieves chest irritation and dry mouth. 2. When the child has chicken pox and measles, drink with water. Green sugarcane+cogongrass rhizome+carrot boiled water = heat-clearing melon (dense melon for relieving cough and asthma) Lanzhou honeydew melon/American honeydew melon is cooler than Hami melon/crepe melon.

It will make people warm up from heat or add cold to cold. Not suitable for those who are prone to dizziness, irregular menstruation and leucorrhea, and avoid physical weakness, cold/asthma.

Jujube nutrition strengthens protein and is rich in sugar. Dredge blood vessels and lower blood pressure.

The vitamin C content of fresh jujube is higher than that of lemon.

7. Special topics on fruit knowledge

Apple is the king of all kinds of fruits, and blueberry is the king of fruits. People with high cholesterol in life should eat apples and mangoes.

Diabetic patients should eat pineapple, pear, pomelo and bayberry;

People with coronary heart disease should eat oranges, peaches, plums, grapefruit and strawberries;

Patients with hepatitis should eat pears, bananas, apples, melons, lemons and dates.

Patients with nephritis should eat jam, red dates and black watermelon;

Patients with intestinal diseases should eat apples, pomegranates, red fruits and lychees;

Patients with hypertension should eat bananas and apples;

Patients with asthma should eat pears and lychees;

Patients with pertussis should eat olives and Siraitia grosvenorii;

Patients with throat diseases should eat Sydney and olives;

Patients with hemorrhoids should eat figs, bananas and so on. [ 1]

I don't know what knowledge topic you want.