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 Alzheimer's disease. Don't eat too much at a time, otherwise 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 can prevent and treat 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 can promote glucose utilization, cholesterol metabolism and protect cardiovascular system. The effect of walnut kernel on relieving cough and asthma is also very obvious. Winter has excellent curative effect on patients with chronic bronchitis 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 good to eat a few walnuts every morning and evening, which is often better than taking tonic.
Walnuts are a good diet. Whether it is used for dispensing medicine, raw, boiled, dipped in sugar or cooked, it has good effects of enriching blood and benefiting 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 salt water and eating dregs can cure lumbago due to kidney deficiency, nocturnal emission, impotence, forgetfulness, tinnitus and frequent urination. Cooking porridge with walnuts, coix seed and chestnuts can cure frequent urination, nocturnal emission, loose stool and diarrhea. Eating walnuts, sesame seeds and lotus seeds dipped in sugar can nourish the heart and brain and cure night sweats. Eating raw walnuts, longan pulp and hawthorn can improve heart function. Walnut is also widely used to treat neurasthenia, hypertension, coronary heart disease, emphysema and stomachache.
Walnut
Deciduous trees belonging to Juglandaceae and Juglans, with a height of 35 meters, gray bark, shallow longitudinal cracks, pithy branches and fluff 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, 65,438+03 is rare, ovoid to ovoid, and the terminal leaflets are usually large, 5-65,438+05 cm long and 3-6 cm wide, with a sharp or tapering apex, a round or wedge-shaped base, sometimes heart-shaped, entire or with inconspicuous blunt teeth, and the surface. The male inflorescence is 5 5- 10/0cm long, the male flower has 6-30 stamens, and the calyx is 3-lobed. Female flowers 1-3 are clustered, and the style is 2-lobed and reddish. The fruit is spherical, about 5 cm in diameter and grayish green. When I was young, I had glandular hair, but when I was old, I lost it. The inner nut is spherical and yellowish brown with irregular grooves on the surface. The flowering period is from March to April, and the fruiting period is from August to September.
American black walnut is a newly introduced fruit tree species. Deciduous tree with fast growth and dark brown bark. Fleshy root system, water and humidity resistance, drought resistance and insect 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. Almonds are rich in fatty oil, which can lower cholesterol. So almonds have a good effect on the prevention and treatment of 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 replace foods with low nutritional density in their diets with almonds, thus lowering blood cholesterol and maintaining heart health. Researchers believe that almonds are 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) decreased by 7.6%, and the low density lipoprotein cholesterol level decreased by 9%. It also won't lead to weight gain.
Almond (almond)
bitter almond
Alias almond. The names of prescriptions in Chinese medicine are: almond, bitter almond, light almond, almond, fried almond, pointed almond and almond paste are the seeds of Rosaceae apricot.
Deciduous trees in plant form, up to 6 meters tall. Leaves alternate, broadly ovoid or ovoid, 5 ~ 10 cm long and 3.5 ~ 6 cm wide, with short or tapering tips, rounded base, serrated edges or inconspicuous double serrations; Petiole is mostly reddish with 2 glands. Flowers solitary, first leaf open, few pedicels; Sepals 5, inflexed; Petals 5, white or pink; Stamens are numerous; Carpels 1, pubescent. Drupe is nearly round, about 3cm in diameter and orange-yellow; The nucleus is hard, flat and heart-shaped with grooves along the abdomen. The flowering period is from March to April, and the fruiting period is from May to June. Mostly cultivated in low mountains or hilly mountains. Location: Inner Mongolia, Jilin, Liaoning, Hebei, Shanxi, Shaanxi and other places.
Harvest the ripe fruits in summer, remove the pulp and stone, and take out the seeds to dry.
The character seeds are oblate and heart-shaped, with a length of 1 ~ 1.9 cm, a width of 0.8 ~ 1.5 cm and a thickness of 0.5 ~ 0.8 cm. The surface is yellowish brown to dark brown, one end is sharp, and the other end is blunt and round, thick and asymmetrical. There is a short hilum on the top side, and several dark brown veins are upward at the joint of the round end. Thin seed coat, cotyledons 2, rich in oil. It tastes bitter.
The chemical constituents include amygdalin, fatty oil, lactoferrin, emulsin, prunase, estrone, α-estradiol, chain sterol, etc.
Temperate bitterness; A little poisonous.
Its main functions are reducing qi, relieving cough and asthma, moistening intestines and relaxing bowels. Used for cough and asthma, chest fullness and phlegm, blood deficiency and body fluid deficiency, intestinal dryness and constipation.
Please note the seeds of Prunus armeniaca, Prunus armeniaca and Prunus armeniaca. Koehne is also used as a medicine. Bitter almond is a commonly used medicine for relieving cough and asthma in clinic. Traditionally, it is considered that the toxicity is very small and it can only be processed and used as medicine. Bitter almonds are often processed by frying and boiling in ancient and modern times.
1, cold water soaking tonic Modern research has confirmed that the cough relieving effect of bitter almond is produced by hydrocyanic acid, the decomposition product of bitter almond glycoside. Soaking in cold water leads to a large loss of amygdalin, some of which are as high as 90%. The content of amygdalin decreased from 2.23 1% in raw products to 0.22 1%, which reduced the pharmacological action of the drug.
2. Bitter almonds should be processed by evaporation. Bitter almonds contain amygdalin and an enzyme that decomposes amygdalin. If this enzyme is not destroyed in time, amygdalin will decompose after being stored for a long time, reducing its pharmacological effect. In order to prevent amygdalin from being destroyed, bitter almond is processed by boiling, frying and steaming. Bitter almond is in direct contact with water when boiling, and the loss of amygdalin is large, and the loss increases with the extension of boiling time. Cooking is dry heating, the heating is uneven, the heat is not well controlled, and the enzyme is basically not destroyed. Some people have done three experimental studies on bitter almonds: steaming, frying and baking. The results showed that the enzyme was completely destroyed after steaming for one hour. The fried enzymes are basically not destroyed; Drying at 80℃ can not destroy its enzyme. From this point of view, steaming is the best processing method of bitter almond.
3. Bitter almonds should not be peeled and sharpened to process bitter almonds. Peeling and sharpening are necessary in ancient and modern times, which is not only labor-consuming and time-consuming, but also reduces the content of effective components. Therefore, it is recommended not to peel and sharpen bitter almonds when processing them. To sum up, the methods of steaming, boiling, frying and baking are all used to destroy catabolic enzymes, preserve amygdalin and improve the curative effect of almond. However, frying and baking can not destroy the use of enzymes, and boiling will lead to a large loss of effective components, which is time-consuming and laborious to remove skin tips. Therefore, the processing method of bitter almond after steaming and drying is the best. Historians generally believe that almonds and dates are one of the earliest cultivated foods. Whether in private or in public, the ancient Romans gave honey almonds as gifts to dignitaries. When King Tutankhamun of the 18th dynasty in ancient Egypt died in BC 1352, he was asked to bring some almonds to his grave to accompany him on his journey to heaven.
/kloc-In the mid-8th century, Franciscan Catholic priests planted apricot trees as auspicious tree to protect their missionary activities on the coast of Minore, Elca.
Former US President Bill Clinton chose cinnamon-flavored almonds as guest snacks at two presidential inauguration ceremonies: 1993 and 1997. At the wedding, the Romans threw almonds at the couple to express their wish to have more children and more happiness. Americans are used to handing out honey almonds wrapped in satin at weddings. This tradition can be traced back to early Europe. These almond candies symbolize future generations, happiness, romance, health and wealth.
Ancient Persians and Arabs made apricot milk from almond meat and water as refreshing drinks or as seasoning materials for other foods.
In Christian tradition, three, five or seven odd-numbered almonds are mascots, symbolizing the luck and happiness of Christians when they are baptized, married and consecrated. In Jewish culture, a handful of peeled almonds and raisins is a symbol of good luck.
There is a saying that eating almonds before drinking is not easy to get drunk, nor will it get drunk. Swedes who are reunited with their families on Christmas Eve are used to eating Gui Xiang pudding. The almond hidden in the pudding symbolizes health, auspiciousness and happiness in the coming year. Colette, a French woman writer, wrote in her works: Don't eat too much almonds, they have the function of breast enhancement. There are few environments suitable for sweet almond growth in the world. The most suitable climate for apricot growth is the Mediterranean climate-dry and hot in summer, abundant in rain, cold in winter, without freezing or frost. On the vast map of the United States, only the Middle Valley in central California has an ideal climate for almond growth. Only a few apricot trees planted in a few areas of the world will blossom and bear fruit.
Although the harvest season of California almonds is in early autumn, planting almonds is a year-round job. The growth of California almonds began in autumn. In autumn, apricot trees germinate and buds come out from the edge of the buds. By the middle of1February, the pollinated particles are mature. At this time, the bud is still in bud, and it will begin to blossom rapidly next year 1 month.