Often we all know that the vegetables on the market is very much, which lettuce is also people are very like to eat a kind of lettuce, and lettuce is also to pay attention to certain preservation methods, then lettuce to how to save? What is the nutrition and efficacy of lettuce?

Lettuce how to save

Lettuce can be put in the refrigerator, if it is not peeled lettuce need to first lettuce head of the leaves pinched off separate preservation, refrigerator preservation Refrigerator in the low temperature can inhibit the growth of harmful microorganisms, so you can lettuce with plastic wrap sealed, placed in the refrigerator to save in the freezer, can be stored for about 5 days. Put the lettuce into a container of cool water, a few at a time, flooded to 1/3 of the main stem of lettuce, placed indoors for 3-5 days, the leaves are still green, the main stem of lettuce is still very fresh, peeled and fried to eat is still fresh and tasty. Lettuce can be stored at room temperature for 3-5 days in a firm state. If the lettuce has been stored for a long time, you can continue to eat it if it does not become soft, red, juicy, smelly or moldy. If the lettuce has been put for a long time, there has been a phenomenon of deterioration, then it should not be eaten, in addition to lettuce storage time more than a week, regardless of whether there is no deterioration, it is recommended that should not be eaten.

What is the nutrition and efficacy of lettuce

Lettuce contains proteins, fats, vitamins, sugars, dietary fiber, trace elements and other ingredients, can enhance appetite, regulate gastrointestinal function; contains dietary fiber, can stimulate intestinal peristalsis, laxative, but also increase the sense of satiety, and high water, low calorie, can play a role in weight loss and slimming effect; contains zinc, iron. Can supplement iron for the human body, to prevent iron deficiency anemia; contains potassium, can balance the body pH, diuretic swelling, lower blood pressure effect; contains niacin, can improve the function of sugar metabolism, assist in the treatment of diabetes. Lettuce for high potassium and low sodium vegetables, per 100 grams of lettuce containing potassium 212 mg, containing sodium 36.5 mg. Potassium is an essential element to maintain human life, it can make arterial expansion, reduce peripheral vascular resistance, promote urinary sodium excretion, reduce the cardiovascular burden, so that the arterial wall thickening of patients with hypertension has been reduced to achieve the purpose of lowering blood pressure. Hypertension, arrhythmia, often eat raw fresh lettuce, the therapeutic effect is remarkable. Lettuce is rich in potassium ions, is 27 times the sodium content, is conducive to the body's water electrolyte balance, promote urination. Lettuce contains more niacin, can increase milk secretion, is an important member of the maternal recipe.

Lettuce a little bitter can eat

Can eat, but the taste is not good. The bitter taste of lettuce mainly from its lettuce, which is mainly because in the growth process of high temperature or lack of water lettuce lettuce lettuce content increased caused by this bitter taste may be relatively strong, but there is no toxin, will not bring the human body what side effects, just a little worse taste, nutritional value is not high just, it can be seen that lettuce is bitter can be eaten. Lettuce in eating slightly bitter, this is mainly because of lettuce in the growth of water, because lettuce itself comes with a bitter taste of lettuce, if growing in the temperature is relatively high, it is easy to lack of water so that the concentration of lettuce increased, and thus its bitter taste will be more. Lettuce by the development of science and technology, gradually appeared a lot of new varieties, no longer before the kind of lettuce rich in a variety of medicinal value, and comes with the bitter pigment also with the different varieties of gradual increase, so there is also the phenomenon of lettuce bitter.

Lettuce a little bitter how

1, varieties of poor: lettuce itself varieties of poor, its lettuce pigment content is more, so eating will feel more bitter. The method of removing the bitter taste: blanching the lettuce when frying it once, or salting it with salt before frying it for half an hour or so, you can generally remove the bitter taste.

2, lettuce bitter because of a substance inside the lettuce, lettuce growth and development in the lettuce may be encountered in certain circumstances and the lack of water and other issues, lettuce may also be increased with these factors, but lettuce is not a toxin, even if it is consumed will not have too many side effects, so lettuce is bitter can be eaten.