With the rise of juicers and wall-breaking machines, more and more people like to drink freshly squeezed fruit and vegetable juice, which is made of fresh fruits or vegetables as raw materials, directly placed in the juicer or wall-breaking machine, which can indeed solve the problem of not loving to eat vegetables or fruits, and some women lose weight by drinking freshly squeezed fruit and vegetable juice, but this will make a lot of nutrients lost, making the nutritional value greatly reduced.
<h1 class="pgc-h-arrow-right" data-track="17" what nutrients are lost in freshly squeezed fruit and vegetable juices >? </h1>
1. Vitamin C
Juicing fresh vegetables and fruits can cause the loss of a large number of antioxidants, such as anthocyanins, flavonoids and vitamins. Normally, vitamin C and ascorbic acid oxidase in vegetables and fruits are separate and not in the same place. However, in the process of juicing, the blade rotates at high speed, destroying all the cells in the fresh vegetables and fruits, so that vitamin C and ascorbic acid oxidase are mixed, which in turn produces an oxidation reaction, resulting in the destruction of vitamin C.
2. Dietary fiber
After fresh fruits and vegetables are juiced, insoluble nutrients, especially dietary fiber and calcium, will remain in the slag, thus causing the loss of dietary fiber. Dietary fiber has a vital health effect on the human body, which can delay the rise of blood sugar after meals, prevent obesity, and reduce the risk of diabetes and cardiovascular disease. In particular, insoluble dietary fiber can promote gastrointestinal peristalsis, help defecation, and prevent gastrointestinal lesions. However, after the juice of fruits and vegetables is squeezed, the dietary fiber is lost, which not only does not promote food digestion, but also leads to constipation.
<h1 class="pgc-h-arrow-right" data-track="7" What can I do to reduce nutrient loss when squeezing fruit and vegetable juice >? </h1>
1. Choose fresh fruits and vegetables
When squeezing fruit and vegetable juice, priority is given to relatively fresh vegetables and fruits; most of the nutrients of melons and vegetables are mainly concentrated in the peel, so you can not peel before juice, otherwise you will lose part of the nutrients in advance, as long as the outer skin is thoroughly cleaned before juicing.
2. Drink now and play now
The fruit and vegetable juice just made is rich in vitamins, but the placement time is too long to be oxidized by the air, so that the nutrients are lost, so it should be drunk immediately after squeezing into juice, and cannot be stored for a long time; if it is put in the juicer after boiling and then squeezed into juice, it has completely killed the enzyme activity, and can be sealed in the refrigerator for one day. However, avoid contact between the juice and the air to avoid oxidative discoloration. The color of the juice that has not been boiled will gradually turn brown, which is caused by the oxidation of polyphenols in fruits and vegetables in contact with oxygen, reducing its oxidation effect, not only changing the flavor, but also losing its fresh taste.
3. Do hot blanch treatment for fresh fruits and vegetables
Putting vegetables and fruits in boiling water for a few minutes can kill the oxidase in it, make the tissue soft, and then squeeze it into juice to drink. This method can minimize vitamin loss, increase the juice rate, and also make the juice more colorful, not easy to change color, especially vegetables without sour taste, such as celery, corn and carrots, etc., should be blanched before juice.
Tips
It is better to drink freshly squeezed juice than to eat vegetables and fruits directly, but it is indeed a good choice for special groups, especially the elderly, children and patients with a weak gastrointestinal tract. Due to the weakening of the chewing function of the elderly, they cannot eat hard vegetables and fruits, and not eating vegetables and fruits for a long time will cause malnutrition or constipation, so it is advisable to drink freshly squeezed fruit and vegetable juice appropriately. Pregnant women who are undergoing radiotherapy and chemotherapy, who have just completed gastrointestinal surgery, and who have a strong reaction to early pregnancy can drink freshly squeezed fruit and vegetable juice.
Family doctor online special article, unauthorized reproduction