Introduction of fruit juice
Fruit juice beverage is a fruit juice product obtained by physical methods such as squeezing, centrifugation and extraction. , generally refers to pure fruit juice or 100% fruit juice. Fruit juice is divided into clear fruit juice and cloudy fruit juice according to its morphology.
Fruit juice (pulp) and fruit juice drinks (products). It is defined as a product made of fresh or frozen fruit after processing. Fruit juice (pulp) and fruit juice beverage (product) can also be subdivided into nine kinds: fruit juice, fruit pulp, concentrated fruit pulp, fruit pulp beverage, fruit beverage thick pulp and fruit beverage. Most of them use beating technology to process fruits or edible parts of fruits into unfermented but fermentable pulp, or add water equivalent to the natural moisture lost by concentrated pulp to make it have the color and flavor of the original pulp.
Fruit juice drink refers to a drink made of fresh fruit juice. Juices of different fruits contain different vitamins and other nutrients, which are regarded as healthy drinks, but their lack of all cellulose and excessive sugar in fruits is sometimes regarded as their shortcomings. Various common juices: apple juice, grapefruit juice, exotic juice, mango juice, pineapple juice, watermelon juice, grape juice, cranberry juice, orange juice, coconut juice, lemon juice, cantaloupe juice, strawberry juice and papaya juice.
A complete list of juice types
1. Freshly squeezed juice: Freshly squeezed juice has the highest nutritional value in juice, and it is fresh, and will not lose nutritional components during squeezing. No added substances, low sugar content. You can choose fruits suitable for children, such as oranges, lemons, pomelos, kiwis, mangoes and so on. They are rich in vitamins, which can enhance immune function and are suitable for children of all ages. Freshly squeezed juice is easy to be polluted in the process of juicing, and it is not easy to preserve without preservatives. It should be drunk by squeezing.
2. Single fruit juice: the most common fruit juice, its substance comes from a fruit. Most of these drinks retain the unique quality and fragrance of fruits, especially uncommon fruits, such as tropical fruits such as Fan Lian and red fruits such as blackcurrant, cranberry, blueberry, raspberry and blackberry. Because there are many kinds of fruit juice, its ingredients are different. When buying or drinking, remember to read the trademark and know the ingredients of fruit juice, such as the type of fruit, fruit content, sugar and so on.
3. Mixed juice: It is made by mixing more than two kinds of juice. Its characteristic is that it can not only provide a variety of nutrients, but also make up for the lack of taste of some fruits. For example, grapefruit juice, although extremely nutritious, contains a lot of sugar, acid, milk, protein, various amino acids, vitamins, inorganic salts and other nutrients. But most people don't adapt to its sour and bitter taste, for example, mixing it with other juices with suitable taste.
4. Fruit and vegetable juice drinks: Fruit and vegetable juice refers to drinks made of fresh or refrigerated fruits or vegetables. Fruits and vegetables contain B vitamins, vitamin E, vitamin C, carotene and inorganic salts such as calcium, magnesium and potassium, which play an important role in promoting human health, so they are increasingly sought after by consumers.
5. Milk: The milk that has been listed in China has many flavors such as orange, strawberry, apple and blueberry. This drink is characterized by adding some fermented milk, whey, fresh milk or reduced milk to the juice, and adding some nutrients such as vitamins, dietary fiber and active calcium to make the drink smoother and more nutritious.
Nutritional analysis of fruit juice
Because people seldom eat vegetables and fruits for breakfast, it should be a good habit to drink a cup of freshly squeezed juice or pure juice in the morning to supplement the water and nutrition needed by the body. Unfortunately, people often drink a glass of milk and can't drink anything else. It should be noted that don't drink juice with high acidity on an empty stomach, and eat some staple food before drinking to avoid gastrointestinal discomfort. Whether it is freshly squeezed juice, pure juice or juice drink, drink as little as possible at lunch and dinner. The acidity of fruit juice will directly affect the acidity of gastrointestinal tract. A large amount of fruit juice will dilute the concentration of gastric digestive juice, and the fruit acid in fruit juice will also combine with some nutrients in the diet, which will affect the digestion and absorption of these nutrients, making people feel full when eating, unable to eat, indigestion after meals, and stomach discomfort. Besides breakfast, it is also suitable for drinking juice between meals.
People drink fruit juice mostly because they think it is nutritious and delicious. Many people think that fruit juice can replace fruit, and drinking fruit juice can supplement nutrients (such as vitamin C) in fruit, especially for children who don't like fruit, and even completely replace drinking water. But juice can't completely replace fruit.
Old people and children drink less fruit juice in moderation, which is helpful for digestion, moistening intestines and supplementing the lack of nutrition in diet.
If adults can't ensure a reasonable diet, it is also a good way to supplement some nutrition by drinking fruit juice. Some people don't like drinking boiled water. Sweet fruit juice can increase their water consumption and ensure their body's need for water, which is really a good thing.
Fruit juice retains a lot of nutrients in fruit, such as vitamins, minerals, sugar and pectin in dietary fiber, and its taste is better than ordinary boiled water. Compared with water and carbonated drinks, fruit juice does have considerable advantages. However, most fruit juices are "delicious" because they are flavored with sugar, sweeteners, sours, spices and other ingredients.
There is a considerable gap between the nutrition of fruit juice and fruit, so don't confuse the two. Fruit juice can't completely replace fruit. First of all, there is basically no cellulose in juice; Second, the process of crushing and pressing destroys some vitamins that are easy to be oxidized in fruits; Thirdly, the lack of some nutrients (such as cellulose) in fruits will adversely affect the overall nutritional function; Fourthly, in the process of fruit juice production, some additives will inevitably affect the nutritional quality of fruit juice, such as sweeteners, preservatives, coagulants to clarify fruit juice, additives to prevent fruit juice from discoloring, etc. Fifth, the sterilization method of heating will also destroy the nutritional components of fruits. Therefore, for those who can eat fresh fruit, the whole fruit is always the best choice in nutrition.
The misunderstanding of fruit juice drinking
Myth 1: Drinking fruit juice can replace eating fruit.
Fresh fruit juice is really the closest thing to fresh fruit, but drinking fruit juice can't replace eating fruit. After the fruit is squeezed into juice, the pulp and membrane are removed, and in this process, vitamin C will also decrease; Fruit juice drinks are generally sterilized at high temperature, and many nutrients are lost. In addition, the plant fiber in fruit is also healthy, but it will also be eliminated when juicing.
Myth 2: Juice drinks can replace boiled water.
Additives will be added to fruit juice drinks more or less. If you drink a lot, it will cause bad irritation to the stomach and increase the burden of kidney filtration.
Myth 3: The more juice you drink, the better.
Because a lot of sugar in fruit juice can't be absorbed and utilized by the human body, it is discharged from the kidneys. Excessive drinking for a long time may lead to kidney disease, resulting in a disease called "juice urine". In addition, excessive intake of fructose can cause indigestion and acidosis.
Myth 4: Eat medicine with fruit juice.
Fruit juice contains a lot of vitamin C, which is acidic. If some acid-resistant or alkaline drugs are taken together with fruit juice, it will not only reduce the curative effect, but also cause adverse reactions. If sulfonamides are taken with fruit juice, it will increase the burden on the kidneys and be harmful to the health of patients.