Grapefruit: properties and uses
Grapefruit rarely appears on the menu of most Russians, which is completely in vain - it contains a large amount of vitamins and minerals, helps strengthen immunity, improve digestion and lose weight. And the characteristic bitterness, which many do not like so much, is easily leveled with proper cleaning and cooking of the fruit.
What is it and where does it grow?
Grapefruit is a citrus fruit, a hybrid (pomelo crossed with an orange). The fruits ripen on evergreen trees of the rue family. Ripe fruits are arranged on the branches in such a way that they resemble bunches of grapes. It is this fact that formed the basis of the name of the fruit, because in English grapefruit means “grape fruit”.
The fruit was first discovered on the island of Barbados in 1750 and was called the "forbidden fruit". China is believed to be the origin of the fruit. Today, trees with these fruits are cultivated in many countries with a subtropical climate. The main fruit importers are the USA, Georgia, Jamaica, India, Indonesia, Brazil. In Russia, grapefruit is grown in the south.
Today, there are about 20 varieties of grapefruit, but this variety can be reduced to three main groups - white, red and pink grapefruits. The weight of one fruit reaches 500-600 g, which is somewhat larger than an orange. The diameter of the first usually reaches 40-45 cm.Grapefruit has an orange tint that can be closer to yellow or red depending on the variety. The flesh is bright orange, juicy. The fruits have a familiar citrus aroma, which is so strong that it can be felt even through an intact peel.
In general, these two citrus fruits are similar. True, grapefruit has a thicker skin, and its taste is more sour, with a characteristic bitterness. Grapefruit differs from pomelo in its lighter weight and brighter color of the peel and pulp. Pomelo usually has a more sour taste, but less pronounced bitterness.
The difference between sweetie and grapefruit is that the former has a significantly sweeter taste. This is not surprising, because the task of breeders was precisely to obtain such a citrus fruit. Sweetie is the result of crossing a sweet variety of grapefruit and pomelo. In addition, sweetie does not have the bright coloring characteristic of grapefruit. Even in mature fruits of the retinue, it remains a pale greenish-yellow.
Fruit ripening is long, sometimes it takes 10-11 months. Trees begin to bloom in late May-early June.
Calorie content and nutritional value
Among fruits, grapefruit stands out for its low calorie content, which is due to the high moisture content in fruits (its volume reaches 90%). The nutritional value is 30-35 kcal per 100 g of fresh product. BJU balance is as follows - 0.7 / 0.1 / 6. Pink fruits contain slightly more carbohydrates and less protein compounds.
Pink varieties have the most calories, while white varieties have the least calories. However, the latter and fiber contain less.
A peeled fruit weighing 400 g contains about 120-140 kcal. In freshly squeezed juice, from 30 to 38 kcal, depending on the degree of extraction, in the zest - 29 kcal per 100 g.
The glycemic index of the fruit is 25, which is not much. In this regard, the fruit is not prohibited to people suffering from diabetes and obesity. In addition, grapefruit is easily digested, carrying toxins and fatty compounds from the intestines.
Chemical composition
Grapefruit fully justifies its title of "vitamin bomb". It can be called a champion in the content of ascorbic acid. It is enough to consume 100 g of fruit per day to meet the daily requirement of the body for vitamin C.
Ascorbic acid is a powerful antioxidant, has a strengthening and immunostimulating effect. In addition to vitamin C, fruits contain vitamins B, P, A (retinol), as well as provitamin beta-carotene (it provides a bright sunny color of the fruit).
Trace elements are represented by calcium, iron, phosphorus, zinc, magnesium. Present in fruits and useful acids - folic, pantothenic, nicotinic.
A substance called naringin was found in the white film, due to which the fruit has a slight bitterness. The purpose of naringin is to improve intestinal motility, in addition, it provides a bactericidal effect. The beneficial effect of fruit on the intestines is also explained by the presence of dietary fiber and fiber in the composition.
The sweetness of the fruit is provided by natural sugars. Also in the composition there are biologically active substances - phytocides.
Benefit
The high content of vitamin C in the fruit in combination with others, as well as the presence of trace elements and acids, make grapefruit the strongest assistant in supporting immunity. By stimulating and strengthening immune cells, these components help to increase the body's resistance to viral and colds, the negative effects of environmental factors.The pulp and juice of the fruit provide a tonic effect, they should be included in the diet of people experiencing increased physical, sports and intellectual stress. Useful will be the consumption of fruits and during the period of colds, spring beriberi.
The nicotinic acid and vitamins B contained in grapefruit have a beneficial effect on the central nervous system, improving the transmission of impulses along the nerve endings. The fruit is recommended for stress, overwork, sleep problems. It will have a mild invigorating effect without an aggressive effect on the central nervous system.
Dietary fiber and naringin improve intestinal activity, so that food is digested faster and better. This, in turn, helps prevent the feeling of heaviness and bloating. These same components accelerate metabolism, which, given the low nutritional value of the fruit, makes it one of the recommended products for weight loss.
The acids included in the composition contribute to an increase in the acidity of gastric juice, so the fruit should be included in your diet for those who have this indicator lowered.
Grapefruit, thanks to its iron, helps to improve the function of hematopoiesis, allows you to maintain hemoglobin within normal limits. This, in turn, suggests that the organs and tissues receive enough oxygen. The components of the fruit fight cholesterol plaques, increasing the elasticity of blood vessels - an excellent prevention of heart attacks and strokes.
For the liver, grapefruit consumption is also beneficial. It is believed that it protects the body from cancer. The fruit ensures the removal of toxins and toxins from the body, which means a decrease in the burden on the liver.
The fruit copes with bleeding gums, and also removes skin pigmentation, freckles, prevents the appearance of fungi, and has an antibacterial effect. It is recommended to use it for hypertension, as it lowers blood pressure.
The fruit is often called the fruit of beauty, which is completely justified. In addition to low calorie content and the ability to speed up metabolism, which is actively used for weight loss, it contains antioxidants. The latter are natural components that slow down the aging process. Using the fruit inside and out can improve the condition of the skin, hair and nails, slow down the appearance of wrinkles, and improve skin tone.
For cosmetic purposes, fruit juice is usually used, which, when mixed with other components, makes it possible to whiten the skin, get rid of age spots, rashes and oily sheen. Grapefruit peel and juice are widely used in the fight against cellulite.
Providing a mild diuretic effect, the fruits help to remove excess fluid from the body. For this reason, it is recommended to include them in your diet during your period.
During pregnancy, the fruit is not only not prohibited, but also allowed to be consumed. A large amount of vitamins and minerals strengthen the body of the mother and fetus, improve its resistance to viruses and bacteria.
Folic acid contained in fruits is indispensable in the first trimester for the formation of organs and tissues of the fetus. Finally, the slightly sour taste of the fruit helps to cope with toxicosis.
This fruit is no less useful for men's health, since its regular use prevents the occurrence of prostate cancer. The lycopene present in the composition protects against prostatitis.
Grapefruit juice has the same positive effect on the body as the fruit as a whole. It is not very sweet, but it can significantly improve digestion. To do this, drink half a glass of juice 30 minutes before a meal. This will wake up the metabolism, prepare the digestive organs for food processing.
Grapefruit juice is indicated for insomnia, chronic fatigue, reduced immunity, lack of sun.
The benefits of grapefruit are comparable to the beneficial properties of the pulp. An important point - not the whole peel is called zest, but only its upper layer, up to a white film. The zest is rich in pectin, as well as B vitamins (primarily B 2.9), vitamins A and C, and essential oils. It is especially useful for strengthening the immune and nervous systems.
The bones of the fruit also contain these vitamins, as well as flavonoids. The latter are considered a natural antibiotic and have antibacterial properties.
Harm
From the consumption of the fruit should be abandoned in case of its individual intolerance, allergy to the fetus. Allergy symptoms are skin rashes, cough, nausea, abdominal pain, diarrhea, rhinitis, suffocation. If at least one of these signs is found, an antihistamine should be given to the victim, in case of severe damage, call an ambulance.
Due to the high acid content, grapefruit should not be consumed if the acidity of the gastric juice is also high. This will only make the situation worse. It should also be abandoned in case of peptic ulcer, gastritis, pancreatitis.
Grapefruit fruits have the ability to react with drugs and neutralize them or, conversely, enhance the effect. As a result, the drug does not work or there are cases of its overdose.Grapefruit neutralizes oral contraceptives, drugs prescribed for hypotension and some other drugs. If this fruit regularly appears in your diet, you should find out how much it affects a particular drug you are taking.
Citrus fruits are the strongest allergens, so they should not be consumed in large quantities. From an overabundance of grapefruit on the menu, itchy rashes, sore throat and cough, and abdominal pain can occur on the skin.
Caution should be taken to eat hypotensive fruit, as it reduces blood pressure. If it is so low that you have to increase it with medication, then grapefruit is contraindicated. Not only does it lower blood pressure by itself, it also neutralizes the effect of drugs to increase blood pressure.
If there are cracks in the oral cavity and around it, sores, grapefruit will increase irritation, so it is better to refuse to take it until the skin and mucous membranes are completely healed.
How to choose?
The most delicious, sweet and most useful are grapefruits with a red tint of pulp. And the darker it is, the sweeter the fruit will be. It has almost no seeds and is characterized by a strong aroma. The ripening season runs from late July to early September. It is at this time that it is better to buy this variety.
White grapefruit has a pale yellow skin, it is quite thick, and it tastes sweet. The number of bones is medium, they are large. The pulp of such fruits contains less sugar, so the fruit of this variety is slightly more acidic. It is actively included in the diet menu, used for weight loss. Duncan is considered one of the most famous white-fleshed grapefruits.
It is easy to understand why the next variety of grapefruit is called pink, if you cut the fruit. You will see pink flesh. She is very sweet, not bitter. The rind of the fruits of this variety is dense, with characteristic red dots, with a strong citrus aroma. One of the popular varieties is "Flame".
It is right to start choosing a fruit with an assessment of its aroma. Fresh and ripe, it emits a strong citrus aroma that can be felt even at a distance of several meters. If, even when specially sniffing, you barely distinguish the citrus aroma, you have stale fruit in front of you.
Red spots on the peel are evidence of the sweetness of the fruit. The more of them, the higher the sugar content. The peel itself should be elastic, without dents and damage. The shade should be uniform over the entire surface. But dark spots and dents, especially at the base of the fruit, speak of its not the first freshness. The fruit itself should have a spherical or slightly flattened shape.
It is important to correlate the size and weight of the fetus. A ripe and fresh grapefruit is always heavy, even if it is small. If the fruit itself is large, but light enough, this means that during long-term storage it has lost most of the moisture. Such a fruit is not the best option for purchase and consumption.
If you can appreciate the inside of the fruit, remember that bright pink and dark orange flesh and a small number of medium-sized seeds usually indicate the sweetness of the pulp.
Storage rules
If stored improperly, the fruit will lose moisture, become dry and bitter. The optimum storage temperature is 2-7 degrees. The lower shelves of the refrigerator are well suited for these purposes.
You should not buy fruit for the future, because even in the refrigerator it is stored for a little more than 10 days. In this case, it is better to pre-wrap the fruits in food paper to get rid of the active loss of moisture. It is important that the fruits do not touch.
The peeled fruit can be stored under the lid in the refrigerator for no more than 4 days. During the same period, you can store the fruit whole, without damaging the peel at room conditions.
If the temperature permits, the balcony can also be converted into a grapefruit warehouse. The shelf life in this case will be 7-10 days. At the same time, it is important that the humidity level on the loggia is not elevated, and direct sunlight does not fall on the fruits. It is also worth storing them wrapped in paper.
What can be cooked?
Unlike orange and lemon zest, which is actively used in baked goods, grapefruit zest is used for these purposes much less often, due to its bitter taste. Bitterness can be neutralized by combining fruits with honey or sugar.
Due to the sweet and sour taste with a slight bitterness, grapefruits are good in salads, when baking meat dishes. They are suitable for glazing meat and poultry, giving them their flavor and protecting the dish from drying out.
You can prepare fruits for future use by making jam or jam from them. Freshly squeezed fruit juice is a real drink of vivacity, beauty and health. However, it is better to dilute it with water before use. You can also make grapefruit lemonade, cocktail, smoothie, fresh juice and compote from juice.
The high content of ascorbic acid makes this fruit very useful for children. However, not every child will like it because of its bitterness. To preserve the benefits of grapefruit, making it more desirable for a child, juice-based jelly will help.
The fruit goes well with vegetables, fish, shrimp, chicken. Successful is the combination of fruits with orange, peaches, pineapples, plums, pears, currants. From fermented milk products - cottage cheese, yogurt without additives, curd cheese. Lemon juice, honey, nuts, mint, rosemary allow you to emphasize the taste of grapefruit. True, there is an important nuance here - you need to completely remove the white films, otherwise the finished dish will be unpleasantly bitter.
Not the most successful is the combination with starchy foods - potatoes, legumes, cereals, pasta. Moreover, such combinations are difficult to digest and cause stomach problems.
Before proceeding to the description of the most interesting proven recipes, let's dwell on the methods of cleaning fruits. To peel the fruit, you need to put it on a cutting board and, holding it with one hand, cut off the top of the peel with a knife. The incision should be deep enough to expose the flesh without damaging it.
Now you should pull the peel from it down and somewhat to the side, peeling it off and trying to damage the pulp as little as possible. The next step is to cut off a layer of white film with a knife.
It remains only to remove the slices from the white film, for which the slice is cut along the film and the pulp is carefully removed from it. As a result of such manipulations, the same slice should remain, but without a white film. Similarly, you should get all the slices.
Then they should be put in a deep plate and, squeezing the remaining pulp with pieces of pulp on it into a fist, squeeze the juice out of it, pouring the grapefruit pulp over it. In this form, you can use grapefruit, and if you close the container with a lid and put it in the refrigerator, then store it for up to 4 days.
You can also use a special spoon and a knife for fruits, which have notches at the end.The fruit is cut in half, after which you can scoop out the pulp from it with a spoon, trying not to stick the device into the area of \u200b\u200bwhite films. Similarly, the fruit is served and eaten in restaurants, guests.
Another easy way to get the pulp of a grapefruit is to cut it in half and then into slices. Now you need to cut off the white film and cut off the peel layer.
Grapefruit peel is also used in cooking. You need to remove it with a fine grater, without touching the white film. You can add zest to tea, pastries.
As you know, vitamins and some trace elements are partially or completely destroyed during heat treatment. You can fully preserve the benefits of the fetus without exposing it to heat over 45-50 degrees.
Salad with shrimp
Grapefruit goes well with seafood, giving a rather fresh-tasting white fish, shrimp and crabs a special piquancy. This salad is suitable for those who play sports and follow the figure. Protein-rich shrimp will allow you to build muscle mass, grapefruit will start the metabolism and give the body the most important vitamins for life.
Cooking:
- 400 g peeled fresh-frozen shrimp (not peeled will do, but in this case they will need to be cleaned and blanched in boiling water for a couple of minutes);
- 8 pieces of toast bread;
- 1 grapefruit weighing 400-450 g;
- 100 g breadcrumbs;
- a bunch of lettuce;
- dried garlic on the tip of a knife;
- 50 g of hard cheese;
- 1 tomato;
- 100 g sour cream;
- a teaspoon of mustard;
- 1 lemon;
- salt, pepper - to taste.
This recipe assumes the use of baked shrimp in batter. To do this, beat the egg, add dried garlic to it. Dip the shrimp in the egg mixture, then roll in breadcrumbs and place on a baking sheet lined with baking paper.Bake in the oven for 7-10 minutes at 200 degrees.
At this time, you can peel the grapefruit, and cut the resulting slices into 2-3 parts. It is also better to prepare the dressing in advance so that its components turn into a single mass. For dressing, you need to mix sour cream and mustard, squeeze 1-2 teaspoons of lemon juice into it. Mix everything thoroughly.
It remains to collect the salad. Put the lettuce leaves washed and dried with a paper towel in the first layer, then put the shrimps and tomatoes cut into cubes or thin plates in random order. Put the grapefruit slices next, sprinkle the salad with grated cheese. Pour the dressing over the top of the dish.
If breaded shrimp seem too high in calories, you can use regular boiled shrimp by putting a couple of black peppercorns and bay leaves in the water for cooking. Red sweet pickled onions, cut into rings or half rings, will also be harmonious in this dish.
Combined with chicken
This salad can also be considered a vitamin-protein "bomb".
In addition, it successfully combines a palette of different tastes - sour, spicy:
- 1 chicken fillet;
- 1 bunch of greens;
- 1 lime (can be replaced with lemon)
- 1 large grapefruit;
- 1 pod of chili pepper;
- 2-3 tablespoons of soy sauce;
- nuts or pomegranate seeds for decoration;
- sprig of mint.
Rinse the fillet under cool running water and boil until tender, salting to taste. You can also add bay leaf, pepper to the water for cooking. Disassemble the boiled chicken into fibers.
Peel the grapefruit, remove the pulp, cut into pieces if necessary. Free the chili pepper from seeds, finely chop.
Put the salad on the bottom of the plate. Its leaves can be left whole or torn by hand into large fragments.Then lay out the mixture of chicken, chili and grapefruit (it is better to mix these ingredients in another bowl, salt to taste).
As a dressing, use lime juice (1-2 teaspoons) mixed with soy sauce. Sprinkle the salad on top with chopped nuts or pomegranate seeds, garnish with mint leaves.
fruit dessert
A light fruit salad will be an excellent option for a second breakfast or afternoon snack, it will serve as a dessert, and in the summer heat, when appetite decreases, it will even replace dinner. Many fruit salads tend to be cloying, but adding grapefruit can help offset the sweetness.
To prepare it you need:
- 1 orange and grapefruit;
- 50 g canned pineapples;
- 50 g strawberries;
- 1-2 bananas;
- sprig of mint;
- 30 ml mint syrup.
Wash fruits and berries, peel, peel, stalks. Cut oranges and grapefruit into slices, strawberries into halves. If the pineapples are in the shape of rings, they need to be cut into cubes.
Mix all ingredients. For dressing, use mint syrup and juice from canned pineapples, taken in equal amounts. Garnish the dish with a sprig of mint. If you don't have mint syrup on hand, you can use lemon or grapefruit juice.
It is better to serve the salad in bowls or wide stemmed glasses. The original can be served by filling half of the peel (they must be whole, intact) with citrus salad.
grapefruit smoothie
This drink will remarkably satisfy the feeling of hunger, start the metabolic processes in the body and give cheerfulness. It is great for hot summer days as it cools and quenches thirst. The recipe is extremely simple, so we can do without a separate list of products.
So, you need to take a chilled fruit (pre-hold it for a couple of hours in the refrigerator) and extract the pulp without the skin in any convenient way. The preservation of the integrity of the pulp and its attractiveness in this recipe are not important, so it will be possible to extract it very quickly.
Put the pulp into the blender bowl, turn it into puree, add 100-150 ml of mineral water (with or without gas - as you like), a sprig of mint. Pour the drink into a tall glass, after putting 2-3 ice cubes there.
Marmalade
Even the presence of sugar does not take away the benefits of grapefruit juice marmalade. Definitely, cooked at home, it is much safer than the purchased analogues of this dessert, it can be given to children without fear.
To make a dessert you need:
- 2 oranges;
- 1 large grapefruit;
- 100 g of sugar;
- a teaspoon of agar agar.
Fruits need to be washed and peeled, divided into slices without pulp, and then squeezed out the juice. This recipe requires 200 ml of juice. You can experiment with the ratio of orange and grapefruit juice or take them in equal amounts.
Pour the juice into a saucepan and put sugar there. Over low heat to dissolve the sugar, it usually takes about 10 minutes. Then add agar-agar and, stirring constantly, bring the mixture to a boil. Remove it from the heat when the first bubbles appear, indicating the boiling of the composition.
After that, the mixture needs to be slightly cooled and poured into silicone molds. Send the last 15-30 minutes to the freezer to solidify. After the specified time, take out, roll in sugar or powdered sugar and serve. Store marmalade in a kraft bag for no more than 5-7 days in the refrigerator.
Baked
The fruit prepared according to this recipe loses its bitterness and sour notes, turning into an exquisite and fragrant dessert.
Ingredients:
- 1 grapefruit;
- 4 tablespoons brown sugar;
- a teaspoon of cinnamon.
Cut the grapefruit in half, carefully remove the pulp. It is better to do this with a special spoon, trying not to damage the slices. After that, separate the white films from the slices, and also scoop them out with a spoon from the resulting “vase” - an empty half of the peel.
The slices again need to be put in a peel, sprinkled on top with a mixture of sugar and cinnamon and baked, previously wrapped in foil. The temperature in the oven must be kept within 75-80 degrees. Baking time - hour.
You can stick star anise or cloves into the pulp and remove them before serving the dish.
Non-alcoholic "Margarita"
The well-known Margarita cocktail will sparkle with new flavors if you add grapefruit juice to it. In addition to these ingredients, you will also need special cocktail glasses. They have a conical shape and a long stem.
Need to prepare:
- 1 lime;
- 100 ml grapefruit juice;
- 2 tablespoons of sugar;
- 6 teaspoons of pomegranate syrup;
- ice cubes.
Sugar needs to be ground in a coffee grinder into powder. You can use ready-made powder. It will be needed to create a beautiful "snow rim" on the edges of the glass.
To do this, you need to cut the lime and rub it with half the top of the glass. After that, immediately lower the dishes into the powdered sugar and scroll it several times. As a result, a white “rim” will appear around the edges. Shake off excess sugar.
At the bottom of the glass you need to put 2-3 teaspoons of pomegranate syrup. Grapefruit juice, the remaining syrup and ice must be mixed in a shaker and carefully poured into a glass so as not to mix with the syrup at the bottom.For decoration, you can use a slice of grapefruit or lime.
Candied fruit
Another sweet from the “quick, tasty, healthy” section is candied grapefruit. The number of ingredients is minimal, the cooking process will seem simple even for novice home cooks.
You will need 2 grapefruits and a glass of sugar. Peel the fruits and separate the white film, and this should be done not from the pulp, but from the peel. It was she who found application in this recipe, but the pulp can be eaten with a clear conscience.
The peel should be cut into strips half a centimeter wide, pour cold water and leave for a day. During this time, you should change the water 5-6 times. Such soaking will rid the raw material of bitterness.
Now the peel strips need to be covered with sugar and weighed. The resulting number is the volume of water that will be required. Pour the sugar-fruit mixture with water and put on a slow fire, stirring occasionally. The task of the cook is to evaporate all the water, preventing the sugar and crusts from burning.
After that, candied fruits can be laid out on a baking sheet or tray covered with baking paper and left overnight or a little longer for final drying. Evidence of readiness will be the absence of moisture when pressing on candied fruits. Roll finished sweets in powdered sugar. Store in a sealed tin box or paper bag in a kitchen cabinet.
See the next video for more about the features of grapefruit.