Will the hot water soak the vitamin C?

A large -scale net red water cup with a maximum price of nearly 500 yuan- "ton -ton barrel" has recently continued to popularize on short video platforms and Xiaohongshu. "Idols" pushed the content of drinking water with "barrels", making many young people feel more important to drink water. And if you feel that drinking boiled water is light but tasteless, and does not like to drink tea or sensitivity to caffeine, a cup of lemonade of thirst is actually a good choice.

How strong is it soaked in lemonade? Will hot water bubble lemon destroy vitamin C? Can the special crowd drink lemonade ... If you have such questions about a cup of lemonade, you may wish to hear the opinions of the experts.

Lemon is sour, it is not suitable to eat but it is suitable for soaking

Whether it is a hot summer or a dry autumn, the fresh alcohol of a cup of lemonade can bring surprises and comfort to the taste buds of people.

Li Xinguo, a professor at Hainan University of Horticulture, said in an interview with the China Consumer Daily that the fruit juice of lemon was full, crispy, and rich in aroma. It is rich in vitamin C, A, B1, and B2. However, lemon itself is a very unique fruit, with low sugar content, and acid content (mainly citric acid) is extremely rich, up to about 5%.

Few people can control the flavor of citaic acid. Therefore, in addition to the adequate pregnant women (lemon, which is therefore called "mother fruit" or "mother -child and child"), occasionally use fresh food. Most of the time, lemons appear in people's lives with seasoning characters. In particular, its rich citric acid has a strong bactericidal effect, which is often used to raise fresh sterilization to seafood such as shellfish.

Although lemon is sour and slightly bitter, it cannot be eaten raw like a lot of fruits, but soaking in water can relieve the heat, appetizing and awakened the spleen.

How to choose good quality lemon, Li Xinguo reminds consumers to remember the "Four Goods" standard:

"Good -looking": High -quality lemon fruit is positive, with obvious characteristics of some varieties, such as Elik lemon fruit top with mastoid; peel color lemon yellow or green, bright epidermis, no cracks, insect eyes.

"Good smell": Fresh lemon exudes a fragrance. If you can't smell it, it means that it is not new.

"Delicious": Fresh lemon fruits are sour, slightly bitter, no taste or wine flavor.

"Good feelings": Fresh lemonade is sufficient, hard to feel, and feels heavy; the epidermis looks tight, and pinch the epidermis with your hands, and most of them will not have obvious depression.

The maturity time of lemon fruits is mainly from September to November each year, so the supply of fresh lemon is only about 3 months, and the dried lemon slices become the best "substitute". One is to maintain the original flavor and nutrition of lemon to a greater extent.

According to Li Xinguo, a good dried lemon still has a faint fragrance even after drying, and the quality is poor. Consumers are recommended to choose dried lemon slices with large seeds and fewer seeds (lemon seeds contain very bitter lemon bitter). Generally speaking, the dried lemon slices with darkens have a stronger taste after brewing; green dried lemon slices are more sour after brewing yellow dried lemon slices, and consumers can choose according to personal preferences.

Lemon soaked water, better or lighter?

Lemon soaked in water.

"Guangzhou garden officials are thirsty water, and the sky is familiar in summer." The Yuan Dynasty poet Wu Lai said in "Lingnan Yimeng Zi Qi Qi Question Water Songs", which was thirsty in water, also called Limu's thirsty water. It was a lemonade beverage welcomed by the court. It is said that in the Yuan Dynasty, there were 800 trees in Guangzhou in Guangzhou to ensure the continuous supply of lemon.

However, from the perspective of food and nutritionists, the "sour and sweet" of the lemonade that the ancients like was not a truly healthy "hydrating artifact".

Fan Zhihong, a professor at the School of Food and Nutrition Engineering, China Agricultural University, said in an interview with the China Consumer Daily that lemonade must be faded, it is best to control a piece of lemon soaked in water, which can pour 3-4 small cups for 3-4 cups. Degree. This is because the lemon is placed too much, so you have to add sugar or honey to neutralize the sour taste. In this way, lemonade became a homemade sweet drink, which deviated from the original intention of hydration. At the same time, heat will increase. If you do n’t drink it, some people may have the risk of gaining weight.

Some people worry that hot water soaked lemon, will it destroy the vitamin C in it?

Fan Zhihong analyzed that the acidity of lemon was strong, and the vitamin C was better resistant to the heat resistance under acidic conditions, and it was not so easy to lose. Even if the water temperature was higher than 60 degrees, it was okay. From another perspective, the vitamin C content per 100 grams of lemon is about 10-40 mg, which is similar to the level of ordinary green leafy vegetables. Since we can all throw them into the pot and cook in the pot, why can't lemon be soaked in hot water? After all, the purpose of soaking lemonade is to drink water instead of vitamin C.

How to soak a cup of good quality lemonade, Fan Zhihong recommends that consumers pay attention to the following points:

Lemon peel is rich in lemon essential oils that can emit aroma and flavonoids that are beneficial to the human body. The slice must be thin, and it is easy to make the aroma of lemon more thin.

The seeds of lemon containing very bitter lemon bitterness, it is easier to release a strong bitter taste after cutting, so it is best to remove the seeds when soaking in water.

Soak in hot water, then cool it, and then refrigerate to achieve the best aroma and taste state.

The lemon that is not used after slicing can be wrapped in the plastic wrap. Most of the microorganisms often retreated except for mold, except for mold, and as long as it is used up within two or three days, there will be no problems. Lemonade, special crowds can't drink casually?

Drinking lemonade, many "popular sciences" have a lot of taboos. Are these claims reasonable?

Can patients with gastric diseases not drink lemonade? Some people say that lemon jadeic acid is too strong to stimulate the stomach, so patients with stomach disease, including excessive gastric acid and people with excessive gastric canal gastroesophage, cannot drink.

Fan Zhihong analyzed that the pH value of pure lemon juice (pH) is about 2.5, which is equivalent to cola. If a piece of lemon is used to soak a large water, the flavor of lemon andadekly tastes a light taste, not only will not cause gastric ulcer, a small amount of citric acid is also conducive to the repair of gastric mucosa; A thin Jiangzuo meal can also promote the secretion of digestive juice.

Isn't it appropriate to drink gout patients? Some people say that the "acidity" of lemon is too strong, so it is not suitable for gout patients to drink.

Fan Zhihong analyzed that the main components of lemonade are citric acid, potassium, vitamin C, polyphenol antioxidant substances, and trace lemon essential oils. Among them, potassium is conducive to the alkaline of urine, helps the body excrete uric acid, and reduce the risk of gout attacks; vitamin C and polyphenol antioxidant substances are also conducive to reducing inflammatory response. Patients with gout need to drink a lot of water to dilute urine and eliminate uric acid. Light lemonade without sugar is a good choice for hydration.

Can patients with kidney stones not drink? Some people say that lemonade and calcium -rich foods are eaten together. Calcium and citric acid will be combined into precipitation, and even stones are generated in the body, so patients with kidney stones cannot drink.

Fan Zhihong explained that citric acid will not only promote kidney stones like oxalic acid. On the contrary, organic acids such as citric acid are conducive to the absorption of various minerals such as calcium, magnesium, iron, and zinc in food. Studies have proved that ingested citric acid is conducive to the prevention of kidney stones, and even potassium citric acid has been used in the treatment of kidney stones.

At the same time, in order to prevent urine concentration, stones recur, and patients with kidney stones should also drink plenty of water. Therefore, stones patients are suitable for drinking light lemonade.

Can patients with hypertension and diabetes drink lemonade? Fan Zhihong said that there is no sodium in light lemonade without sugar, almost no energy, and contains potassium, a small amount of vitamin C, and a small amount of flavonoids, which is very suitable for chronic patients such as hypertension, coronary heart disease and diabetes.

Potassium can combat the boosting effect of sodium. Flavonoids are conducive to insulin sensitivity, and vitamin C is also helpful for blood lipid metabolism. Of course, the content of these ingredients in lemonade is not too high, so it cannot be said that lemonade has the treatment effect on hypertension. (Edit Li Chuang)

Source: China Consumer News • China Consumer Network

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