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What do the four nuts mean?
Question 1: What do the four nuts refer to, namely hazelnut, walnut, almond and cashew nut? They are called "the four largest nuts in the world". Hazelnut, walnut, almond and cashew nut are called "the four biggest nuts in the world".

Question 2: What are these nuts called macadamia nuts?

badam

pecan

Chinese chestnut

Bowfish fruit

Question 3: Walnuts with four nuts can be called the "king" of oxidation resistance. The American Dietetic Association advises people to eat walnuts two or three times a week, especially middle-aged and elderly people and menopausal women, because the arginine, oleic acid and antioxidants contained in walnuts are quite beneficial to protect the cardiovascular system and prevent coronary heart disease, stroke and senile dementia. Don't eat too much at a time, or it will affect digestion. Some people like to peel off the thin brown skin on the surface of walnut kernel, which will lose some nutrients, so don't peel off this skin. Modern medical research believes that phospholipids in walnuts have a good health care effect on brain nerves. Walnut oil contains unsaturated fatty acids, which has the effect of preventing and treating arteriosclerosis. Walnut kernel contains zinc, manganese, chromium and other indispensable trace elements. The contents of zinc and manganese are decreasing in the process of aging, and chromium has the functions of promoting glucose utilization, cholesterol metabolism and protecting cardiovascular system. The effect of walnut kernel on relieving cough and asthma is also very obvious. In winter, it has excellent curative effect on patients with chronic tracheitis and asthma. It can be seen that eating walnuts regularly can not only strengthen the body, but also resist aging. Some people often take tonics. In fact, it is really beneficial to eat a few walnuts every morning and evening, which is often better than taking tonics. Walnut is a good food therapy. Whether it is used for dispensing, or eaten raw, boiled, dipped in sugar or cooked, it has good effects of enriching blood and nourishing qi, tonifying kidney and replenishing essence, relieving cough and asthma, moistening dryness and relaxing bowels. There are many ways to eat walnuts. Boiling walnuts with proper amount of salt water and eating dregs can cure kidney deficiency, low back pain, nocturnal emission, impotence, forgetfulness, tinnitus and frequent urination. Walnut, coix seed and chestnut are cooked as porridge, which can cure frequent urination, nocturnal emission, loose stool and diarrhea. Walnut, sesame seeds and lotus seeds are dipped in sugar, which can nourish the heart and brain and cure night sweats. Eating walnuts, longan meat and hawthorn raw can improve heart function. Walnut is also widely used to treat neurasthenia, hypertension, coronary heart disease, emphysema and stomachache. Juglans regia, a deciduous tree belonging to Juglans family and Juglans genus, is 35m high, with grayish white bark, shallow longitudinal crack, flaky pith of branches and fine hairs at the tips of young branches; 2-year-old branches are often hairless. The pinnate compound leaves are 25-50 cm long, with 5-9 leaflets, rare 13, oval to oval, and the terminal leaflets are usually larger, with a length of 5-15 cm and a width of 3-6 cm. The apex is acute or acuminate, the base is round or wedge-shaped, and sometimes it is heart-shaped, whole or with inconspicuous blunt teeth. The male catkin is 5-10 cm long, the male flower has 6-30 stamens and the calyx is 3-lobed. Female flowers1-3 flowers are clustered, and the style is 2-lobed and reddish. The fruit is spherical, about 5cm in diameter and grayish green. When young, it has glandular hair, but when old, it has no hair. The inner nut is spherical, yellow-brown, and the surface has irregular grooves. The flowering period is from March to April, and the fruiting period is from August to September. American black walnut J. nigra Yanling is a newly introduced fruit and wood tree species. Deciduous tree, fast-growing, with dark brown skin. Fleshy root system, water and humidity resistance, drought resistance and pest resistance. Almond is also called apricot fruit. Almond is rich in protein, fat, sugar, carotene, B vitamins, vitamin C, vitamin P, calcium, phosphorus, iron and other nutrients. Among them, the content of carotene is second only to mango in fruits, and people call almonds anti-cancer fruits. Almond is rich in fatty oil, which can reduce cholesterol. Therefore, almond has a good effect on preventing and treating cardiovascular diseases. According to the theory of traditional Chinese medicine, almond has the effects of promoting fluid production to quench thirst, moistening lung and relieving asthma, and is often used for health care and treatment of patients with lung dryness, asthma and cough. A recent study by American researchers shows that people with normal or slightly higher cholesterol levels can use almonds to replace foods with low nutritional density in their diet, so as to reduce blood cholesterol and maintain heart health. Researchers believe that almond is rich in various nutrients, such as vitamin E, monounsaturated fat and dietary fiber, which can effectively reduce the risk of heart disease. The total cholesterol level of 85 middle-aged and elderly volunteers (average age 56 years old) in the sample decreased by 7.6%, and the low-density lipoprotein cholesterol level decreased by 9%. It also did not cause weight gain. Almond (Semen Armeniacae Amarum) Bitter Apricot Seed alias almond. Prescription names in traditional Chinese medicine are: almond, bitter almond, light almond, apricot kernel, fried almond, pointed almond and almond cream are the seeds of Prunus armeniaca L. of Rosaceae. Deciduous trees in plant form, up to 6m high. Leaves alternate, broadly ovoid or ovoid, 5 ~10cm long and 3.5~6cm wide, with short or acuminate apex, rounded base and serrate or unknown edge ... >; >

Question 4: What kind of nut does dried fruit refer to? It is a classification of closed fruit with hard skin and 1 seed. Fruits such as chestnuts. Nuts are the essence of plants, which are generally rich in nutrients and high in protein, oil, minerals and vitamins, and have excellent effects on human growth and development, physical fitness and disease prevention.

King of Nuts:

Hazelnut is comprehensive and rich in nutrition. Regular eating can prevent and treat heart disease, cancer and vascular diseases, and can also improve eyesight and brain.

The fruit of longevity:

The fat components of pine nuts are oleic acid and linolenic acid, which have the functions of lowering blood pressure, preventing arteriosclerosis and preventing cardiovascular diseases caused by increased cholesterol.

Generally speaking, the trend of increasing blood pressure in young people is more obvious with the increase of age. Therefore, the prevention and treatment of hypertension should start with dolls, which can get twice the result with half the effort.

Fruit of kidney:

Chestnut is rich in soft dietary fiber. Strengthen the spleen and stomach, kidney and heart. The glycemic index is lower than that of rice, so diabetics can taste it properly. Take only 6 ~ 7 capsules a day. Chinese medicine believes that chestnuts are the best for kidney deficiency and weakness of waist and legs.

Almond glycoside is produced by enzyme as a natural anticancer substance, which can selectively destroy cancer cells. Bitter almond is toxic for cough and asthma. Sweet almond is non-toxic, nourishing, moistening lung and smoothing intestine, lowering cholesterol, and suitable for the elderly and the weak. My intimate reminder: eight categories of anti-cancer foods.

Friends of the heart:

Suitable pistachios mainly contain monounsaturated fatty acids, which are very stable, so pistachios are not as rancid as other nuts, which can reduce cholesterol content and reduce the chance of heart disease. Scientists calculate that eating 10 pistachio at a time is equivalent to eating10.5g monounsaturated fat. Further reading: What foods will reduce blood lipids?

Anti-melancholy fruit:

Sunflower seeds contain β-carotene, which can prevent cells in the lower layer of human skin from dying and make hair soft and beautiful. Recent medical experts believe that sunflower seeds contain vitamin B8, which can cure depression and neurasthenia.

The fruit of happiness:

The hard skin on the outside of pistachio is the peel, and the seed kernel is inside. There is a thin seed coat. After the seed kernel is baked, it has a fragrance, which is the part we eat. The more we chew, the stronger the fragrance, the more memorable it is, and the happier it is. Pistachio nuts are rich in nutrients, and their kernels contain about 20% of protein, with sugar content of15% ~18%, and can also be used for oil extraction. Nuts also contain vitamin E, which has anti-aging effect and can enhance physical fitness. It is not unreasonable for the kings of ancient Persia to regard it as a "fairy fruit".

Intimate reminder: it is appropriate to eat about 30 grams of nuts every day. If you accidentally eat more nuts, you should reduce the oil consumption and diet for three meals a day.

Nut calorimeter (edible part)

Unit: kcal/100g

Hazelnut 594 (equivalent to 1 kg of rice)

Pine nut 6 19 (equivalent to 1 kg 1 two rice)

Chestnut 2 12 (equivalent to 3.6 rice)

Almond 562 (equivalent to 9.6 rice)

Pistachio 552 (compared with 9.5 rice)

Sunflower seed 6 16 (relative to 3.5 rice)

How to buy dried fruits?

Dried fruit can be said to be the highlight of the new year's goods. Generally speaking, it is easier to identify the dried fruit in sealed packaging. First, it depends on whether the labels on the outer packaging, such as factory name, address, production date and shelf life, are complete, and then try to choose well-known brands. People who choose to buy bulk dried fruits should pay attention to the following matters. Such as melon seeds, first of all, it depends on whether the shape of melon seeds is regular, and then take a few melon seeds in your hand and pinch them with your fingers. If the surface of melon seeds is easy to fade, and there are many, it means that the quality of melon seeds is not high. Secondly, choose a few melon seeds to taste. Fresh melon seeds are full of particles and have a fragrant taste, while old melon seeds have a musty taste and are bitter. Pistachio nuts, with good quality, should have regular and obvious natural openings, full nuts and pure green. If the shell is big and the meat is small, it means the quality is not good. As far as nuts are concerned, you should choose fat, round and fragrant ones. Hazelnut, the shell is brown, but most of the ones with good luster are smoked with sulfur to cover up some parts with poor quality. If you eat hazelnuts containing sulfur, your tongue will feel numb. In addition, people should not only shop around, but also shop around. It is best to know the average price of similar goods before buying. If the price presented by the merchant is much lower than the average price, it is best not to buy.

Famous brands of dried fruits in China: qiaqia, Zhenxin, Mrs. Yao, Ye Yuan Fang, Xiao Liu, Amin, Haohaoda, Emblem, Huaweiheng, Nongfu Villa ...

The benefits of nuts to human body

Nuts, also known as shell fruits, are mostly cotyledons or endosperm of plant seeds, which have high nutritional value. American Time magazine once rated it as 10 nutrition for modern people ... >; >

Question 5: What are the nuts? Nut types and their calories (part)

Hazelnut 594 (equivalent to 1 kg of rice)

Pine nut 6 19 (equivalent to 1 kg 1 two rice)

Chestnut 2 12 (equivalent to 3.6 rice)

Almond 562 (equivalent to 9.6 rice)

Pistachio 552 (compared with 9.5 rice)

Sunflower seed 6 16 (relative to 3.5 rice)

Question 6: Do the almonds in the four nuts refer to ordinary almonds or almond? Almonds with four nuts refer to sweet almonds, that is, almond. Almond is called almond in the United States and almond in China.

Question 7: What are the kinds of dried fruits? What kinds of dried fruits are there? According to the condition of fruit skin, fruits can be divided into two categories: fleshy fruits and dried fruits:1. The main types are: drupe-the exocarp is thin, the mesocarp is thick and fleshy, and the endocarp is the hard shell of the core. For example, peaches, mangoes, olives, plums, etc. Berry-the exocarp is thin and soft, and the mesocarp and endocarp are thick and pulpy. For example, grape, tomato, kiwifruit and other pear fruits-the fruit hypertrophy part is mainly developed from receptacle and ovary. Such as pears, hawthorn, apples, etc. 2. Fruits with dry skins are called dried fruits. Dried fruits that are ripe and cracked are called cracked fruits, and those that are not cracked are called closed fruits. In the cracked fruit, the peel is cracked along two seams, which is called pod, such as soybean, acacia Taiwan, etc. The pericarp is cracked along two seams, with a false diaphragm and many seeds, which is called pod. Such as Chinese cabbage, radish, shepherd's purse, etc. There are nuts in the closed fruit, such as chestnuts and acorns; Achenes, such as sunflowers; Caryophylls, such as rice, corn, wheat, etc. Samara, such as maple, elm, etc.

Question 8: What fruit does walnut belong to in dried fruit? The walnut (edible species), Juglans mandshurica, Juglans mandshurica, etc. that we see every day belong to Juglandaceae in botanical classification, with about 18 species in the world, mainly distributed in the north temperate zone. There are 5 or 6 common species in China, all of which belong to tall trees, with a height of 20-30 meters, light gray or grayish brown bark, straight trunk, smooth when young, and crossed or rhombic longitudinal cracks in old trees. They are generally edible or woody oil plants and are also precious timber trees.

1, walnut: also known as walnut and peach, with pinnate compound leaves and 5-9 leaflets, oval, 4.5-12cm long and 3-8cm wide. Drupe is generally nearly round, with a diameter of 3.2-5.4 cm, and the surface of the fruit is irregularly engraved. Widely cultivated, with northwest and north China as the main producing areas. It turns out that the cultivation of walnuts is mainly seedling propagation, and the shells vary in thickness, which is very inconvenient to eat. In recent years, a number of new thin-shell varieties have been bred through seedling selection and cross breeding. The shell thickness is generally 0.4 mm, which can be crushed by hand, with high kernel yield and convenient eating.

2. Yangbi Walnut: It is a variety of Walnut. The main difference from Walnut is that there are many lobules, 7-13 pieces are lanceolate or oblong, and the stone fruit is oblate, with thick shell and extremely low kernel rate. It is a north subtropical tree species, distributed in Yunnan, Guizhou and northwest Sichuan at an altitude of1200-2800 meters. Our common iron walnut is this kind.

3, Juglans mandshurica: also known as Juglans mandshurica. There are many lobules, including 9-19. The leaves are 6-18 cm long and 3-7 cm wide, and the edges of the leaves are serrate. Drupe is dark brown, oval or ovoid, 3-6 cm long, with 8 longitudinal ridges and irregular deep depressions on the fruit surface. It is mainly distributed in the mountains in the eastern part of Northeast China, with a small amount in North China, mostly scattered in mountain valleys. The nuts of wenwan walnut are listed as such.

4. Wild walnut: 9-17 leaflets, petiole-free, oval with serrated edges, stellate hairs on the back of leaves, oval drupe with 6-8 longitudinal ridges, irregular sharp spines and deep pits between longitudinal ridges, thick shell and small kernel. It is widely distributed, from Shaanxi and Shanxi in the north to Guangdong and Guangxi in the south. The common northwest lantern walnut is a kind of wild walnut.

5. Juglans regia: When Juglans regia was discovered, there is no textual research, and there is no detailed record of Juglans regia in various documents. However, the formation of Juglans regia and its name came from this: in the 1930s, some people took samples in the suburbs of Beijing and asked Professor Hu Xian 'ou, a famous plant floating scientist in China, to have a look. After on-the-spot investigation and identification by Mr. Hu, it was confirmed that it was a natural hybrid of common walnut and Juglans mandshurica, and it was named Juglans regia according to its appearance characteristics. Juglans regia mainly grows in the Taihang Mountain areas such as Beijing suburbs, Laishui, Hebei, Zhuolu and Shanxi, and is less distributed in other areas. The botanical appearance of the branches and leaves of Juglans Juglans is very different from that of ordinary Juglans Juglans, so it is difficult for ordinary people to distinguish Juglans Juglans nuts without peeling off the pericarp. Everyone is already familiar with the varieties and characteristics of Juglans regia, so I won't go into details about others.

The above are my personal humble opinions on the classification of walnuts. Please correct me if there is anything wrong.