Grapefruit also has an nickname called "Wendan". According to legend, in the imperial palace of the Qing Dynasty, there was a special person to collect grapefruit flowers, which were used to extract the essence and make cosmetic oil for concubines to eat. The south is rich in grapefruit, among which the grapefruit produced in Fujian and Guangxi is the most famous. Mature grapefruit has rich aroma, crisp meat, sweet and sour taste.
"The smoke in a tree cage is suspected of bringing fire, and the mountains are like hanging the golden sun", which is a famous sentence of Zhang Tong, a poet in the Tang Dynasty. Grapefruit ripens in the golden autumn and is one of the essential fruits for family reunion on the traditional Double Ninth Festival.
Grapefruit is the largest fruit in autumn, generally more than one kilogram. It is picked from the middle of August to the end of October in the lunar calendar. It has a thick skin and can be stored for three months without losing its fragrance, so it is called "canned natural fruit" by Chinese and foreign fruit experts.
Nutritional value of grapefruit
Pomelo is rich in protein, sugar, organic acids, provitamin A, B 1, B2, C, P, calcium, phosphorus, magnesium, sodium and other nutrients, among which every100g of grapefruit meat contains 57mg of vitamin C, which is 0/0 times higher than that of pears, and contains 5655.
Efficacy:
Traditional Chinese medicine believes that grapefruit is sweet and sour, cold and non-toxic, and has the functions of invigorating qi, moistening lung and clearing intestine, enriching blood and strengthening spleen. Fresh pomelo meat contains insulin-like components, which have the function of lowering blood sugar and are very beneficial to patients with diabetes and cardiovascular diseases. Can cure anorexia, anorexia, dyspepsia and other symptoms. Regular food has the functions of helping digestion, resolving phlegm, quenching thirst, regulating qi and relieving depression.
In addition, grapefruit has the effects of invigorating stomach and spleen, moistening lung and enriching blood, clearing intestine and relaxing bowels, which can promote wound healing and has a good curative effect on septicemia. Modern medicine also found that grapefruit has the effects of preventing cerebral thrombosis, resisting cancer and losing weight, and is most suitable for middle-aged and elderly people.
Grapefruit contains bioactive substances such as naringin and hesperidin. Naringin can reduce the viscosity of blood circulation and reduce the formation of thrombus. If middle-aged and elderly people suffer from cerebrovascular diseases, eating grapefruit often helps to prevent the occurrence of stroke. Grapefruit contains a lot of vitamin C and calcium, which helps to prevent the occurrence of intestinal cancer and gastric cancer.
The therapeutic effect of grapefruit is particularly obvious. Peel grapefruit 1 piece, cut off the inner white pulp, cut into fine pieces, put into a covered bowl, add a proper amount of honey, steam it in water, take one spoonful each morning and evening, and take it with a little yellow wine, which can cure cough and asthma of the elderly. Peel a grapefruit and leave the meat. Put the grapefruit meat into a cock that has been stripped of hair and impurities, stew it in water, and eat chicken soup once a week to cure chronic tracheitis. Grapefruit flower contains volatile oil, which has the functions of promoting qi circulation, resolving phlegm and relieving pain. In the Qing dynasty, imperial doctors sent people to collect grapefruit flowers and extract balsam for royal dignitaries to enjoy. In the Ming Dynasty, Li Shizhen believed that grapefruit flowers could "moisten long hair".
Applicable people: most people can eat it. Patients with cardio-cerebral nephropathy and people with poor respiratory system are especially suitable. Pregnant women are also suitable for eating.
Usage: 65438+ 0 large petals per day (about 50g).
Suitable time: grapefruit tastes slightly sour and is not suitable for eating on an empty stomach. Eating before meals 1 hour can stimulate appetite.
Taboo: Who can't eat grapefruit?
Patients with hypertension should not eat grapefruit, especially grapefruit. Because it can interact with the drugs taken by patients with hypertension, the blood concentration of the drugs increases, and the blood pressure drops obviously, which poses a threat to health.
Grapefruit is cold, and people who are weak should not eat more.
Patients taking medicine, especially the elderly, had better not eat grapefruit or drink grapefruit juice. Because the interaction between grapefruit and the antiallergic drug Terfenadine can cause ventricular arrhythmia and even fatal ventricular fibrillation. Other drugs that have side effects on grapefruit are cyclosporine, caffeine, calcium antagonists and cisapride. Drinking a glass of grapefruit juice will last for 24 hours.
Special note: grapefruit that is too bitter is not suitable for eating.
Pomelo peel has many uses.
Don't throw away the peeled grapefruit skin. Pomelo peel has many uses, which can be used for bathing, beauty and mosquito prevention. The skin of grapefruit is rich in essential oil. Adding it to the bath water when cooking soup not only has a cosmetic effect, but also prevents it from being bitten by mosquitoes, because mosquitoes don't like the taste of grapefruit. Grapefruit can also be used as a deodorant in the refrigerator. Put the peeled pomelo peel in the corner of the refrigerator. The smell of pomelo peel can effectively eliminate the odor in the refrigerator.
Several ways to eat grapefruit
Peel and core fresh pomelo, mix it with 50 grams of Zhengbei apricot, 50 grams of Fritillaria, 50 grams of unbleached tremella, and a few bottles of honey, and stew it.
How to eat pomelo peel
Selection of pomelo peel
In terms of material selection, it is best to choose the pomelo peel of Thai golden pomelo. Because the skin of Thai golden pomelo is thick, white and rich in aroma; It would be better to use immature pomelo peel from Shatian, Guangxi. Pomelo peel is thicker and more fragrant, which is a rare good material.
Pomelo peel method
Take 1 grapefruit, vertically carve the grapefruit peel into a five-petal boat shape with a fruit knife, then peel it in all directions and take out the grapefruit pulp. Be careful when taking grapefruit pulp. It is best not to break the grapefruit skin and keep it intact.
Pomelo peel treatment
With grapefruit skin, first cut off the yellow skin, which is hard and astringent and can't be eaten, leaving a white "cotton wool" inner layer.
Then roll the grapefruit peel with boiling water for 10 minute (chopsticks can pierce it), then pick it up and soak it in clear water for one night, then pick it up the next day to squeeze out the water, and then soak it in clear water for several times. After removing the green smell of grapefruit peel, cut it into blocks.
Honey grapefruit tea
Ingredients: grapefruit: 500g (with pulp), sugar: 100g (preferably sucrose), honey: 250g (sweet-scented honey such as Sophora japonica honey is best, osmanthus honey is not recommended), glass bottle: the best one that can hold 1000cc.
Production: Disinfect with water for 5 minutes. Wash grapefruit with warm water at 65 degrees Celsius. If there is no thermometer, you can measure the temperature by hand. It may be hot to the touch, but it's enough to the touch. Then soak for 5 minutes, so that on the one hand, you can wash the grapefruit skin, and at the same time, you can use the water temperature to open the pores of the grapefruit skin. Ok, now five minutes have passed. Use a clean towel to suck the grapefruit dry. Then peel it off and pay attention to three parts. First, the grapefruit skin, then the white pulp between the grapefruit skin and the grapefruit pulp, and finally the grapefruit meat. Cut the skin into 4 or 5 cm long and 0. 1-0.2 cm wide, just like we usually make shredded potatoes. The same is true of white pulp. Cut it and put it aside for later use. Then peel the grapefruit meat, peel and core it, put the meat in a big container and "squeeze" it out with a spoon or other utensils. If there is a blender, it can be crushed with a blender. After processing, peel, white pulp, pulp, honey and sugar are stirred. The quantity mentioned above is only a reference value, and you can decide to put more or less according to your preference. After stirring, put citron tea into the prepared glass bottle, seal it and put it in the refrigerator. It can be eaten after about 65,438+00 days, but the longer it is kept, the better it tastes.