1, high-dimensional C fruit is not recommended to cook.
Of course, not all fruits are suitable for cooking. "In the season of rich fruits in summer, eating raw fruits not only tastes good, but also has a certain effect of clearing away heat and relieving summer heat." Nutritionists say that if it is cooked and eaten, it will violate this original intention.
After high-temperature cooking, it is easy to destroy vitamin C or other most precious nutrients in high-temperature volatile fruits. Nutritionists say that vitamin C will be destroyed when it is close to 80 degrees Celsius, especially when it comes into contact with oxygen, while frying, boiling and boiling generally exceed 100 degrees Celsius. Therefore, it is a pity to eat fruits with high vitamin C content, such as oranges, pitaya, kiwifruit and lemons, when cooked.
Nutritionists remind that the key to eating fruit is to look at the individual's demand for fruit. For example, when vitamins and fiber need to be supplemented, it is recommended to eat raw. If you need to remove the coldness of fruit, you can eat it warm.
2. processed medicinal materials will change their properties.
"In the tradition of traditional Chinese medicine, there have been different processing methods for medicinal materials." Nutritionists say that baking, roasting, stewing, roasting, frying, washing, soaking, bleaching, steaming and boiling are all traditional processing methods for Chinese medicinal materials.
The purpose of processing traditional Chinese medicine is to reduce the toxicity of the drug, enhance the curative effect and facilitate storage and preparation. Aconite is a common medicinal material, which needs to be processed before it can be used as medicine. Improper processing or decoction of aconite root and excessive dosage can cause poisoning. After being processed correctly, aconite is mild in nature and can cure cough due to wind-cold.
Boiling some fruits can also achieve the above goal. For example, Cantonese people often fry pineapples, boil them in sugar or soak them in salt water. Because pineapple itself contains protease and glycoside, some people are allergic to this protease, which will decompose protein and destroy oral mucosa and gastric mucosa after entering the body. This is why eating too many raw pineapples is easy to cause oral paralysis and gastrointestinal discomfort. After cooking, protease can be inactivated, which is more suitable for eating.
Cooking with materials can increase the efficacy of fruits.
In addition to "detoxification", another purpose of cooking fruits is to enhance efficacy. After some cool fruits are cooked and fried at high temperature, the coolness decreases and the warmth increases. For people with cold constitution, it is more suitable for this way of eating.
"Cooking Sydney is a common therapy." Nutritionists say that eating raw Sydney has the effects of clearing away heat, reducing fire and detoxifying. When cooked and eaten, Sydney has a more prominent role in nourishing yin and moistening the lungs. In addition, classic syrup formulas, such as rock sugar Sydney and Chuanbei Sydney, have complementary and enhanced efficacy after being boiled with different ingredients and medicinal materials.
4, fruit diet recommendation
(1) mango
Scientific research has found that women who eat more mangoes can prevent breast cancer. The researchers studied the polyphenols in mango, especially the bioactive component tannin (related to the prevention and inhibition of cancer). Tannic acid is a bitter polyphenol which exists in grape seeds and tea. It was found that the cell division cycle was broken by polyphenols. This may be a mechanism of mango preventing or inhibiting cancer cells.
Recommended food: mango salad
Ingredients: 3 ripe mangoes, 500ml water, 250g sugar, 4-in-1 spice 10g (cinnamon, clove bud, nutmeg and black pepper).
Production process: peeled mango, sliced and ready for use. Mix sugar, four-in-one spice and water, boil, cover and soak. Put mango slices on a pan, spread them out, soak them in sugar water, boil them, cool them and let them soak for a while. Put the mango slices into the soup basin. Filter the marinade with a colander and pour it on the mango slices. Serve.
(2) Citrus
Citrus fruits, such as oranges, grapefruit, oranges, lemons, kumquat, etc. , are rich in vitamin C, can prevent the formation of nitrosamines, and are suitable for patients with gastric cancer, laryngeal cancer, breast cancer and lung tumor.
Recommended food: rock sugar tremella orange petal soup
Ingredients: 2 cooked oranges, 30g tremella, appropriate amount of rock sugar (not too sweet according to personal taste), Lycium barbarum 10.
Production process: put the orange petals with orange collaterals and tremella together in the water pot, cover and cook for half an hour, then take them out, add rock sugar, sprinkle with Lycium barbarum, and eat them after warming.
(3) Hawthorn
It is often used to stimulate appetite, promote digestion and reduce blood lipids. It can promote blood circulation, remove blood stasis, eliminate stagnation and inhibit the growth of cancer cells. At the same time, it is rich in vitamin C, which is suitable for patients with digestive tract and female reproductive system cancers such as gastric cancer and breast cancer.
Recommended food: hawthorn burdock soup
Ingredients: hawthorn 5 yuan, burdock 1 kg, yam 6 Liang, carrot 1, salt 2 tsps.
Production process: 1. Peel and clean burdock, cut into hob pieces and soak in light salt water; Peel carrots and cut into hob blocks; Dice the yam. 2. Wash the hawthorn quickly with clear water, put it into the pot with burdock, carrot and yam, add 5 bowls of water to boil, turn to low heat and cook until the burdock is cooked and soft, and season with salt.
(4) Jujube
It is rich in B- carotene, vitamin C and B vitamins. It contains a group of triterpenoids as effective anticancer components. People eat jujube porridge and simmer jujube with astragalus to enhance their physique and prevent breast cancer.
Recommended food: red dates and tremella sweet soup
Ingredients: tremella: 20g (about half a flower), red dates: 20g, rock sugar: 60g (the weight can be increased or decreased according to everyone's taste).
Practice: put the tremella into clear water, remove the pedicle, tear it into small pieces, put it into the pot with red dates and rock sugar, add 6 bowls of water, cook it with slow fire for half an hour, and then turn off the fire.