1, how long can the iron stick yam last?
Store in a ventilated place at room temperature. Generally it can be stored for 6-8 months in autumn and winter. If it is hot in summer, it is best to eat it within two months to prevent germination or deterioration.
2. Can iron stick yam germinate and eat?
He, an expert from the Vegetable Research Institute of Jiangsu Academy of Agricultural Sciences, and Jin, president of the Vegetable Association, said: Potatoes belong to Solanaceae and yam belongs to Dioscoreaceae, so the families are different. When potatoes germinate, they produce a toxin called solanine, which is a toxic glycoside alkaloid. Like the germination of peanut edamame, it is also inedible.
But the germination of yam is normal. It grows on the sand and has many small buds. Some time ago, the air was humid and the buds would pop out. Dig out the sprouted part, dig deeper at the bud eye and soak it in clear water. It is absolutely no problem to eat.
But if yam and sweet potato turn black, don't eat them any more.
3. A fresh-keeping method of iron stick yam
1. Ventilation at room temperature, away from light and shade.
Authentic Jiaozuo iron stick yam has a dense texture and a strong sense of freshness. (Otherwise, how can it be called iron stick yam? ) Due to the special soil structure of Tiegun yam producing area in Jiaozuo, Henan Province, the cultivated yam is also very strong and elastic. Moreover, after cooking, the taste is dry, smooth, sweet and glutinous, and it will not be cooked for a long time. Because yam is dense and strong, it can be stored in a ventilated place at room temperature. Generally it can be stored for 3-4 months in autumn and winter. If the weather is hot in summer, it is best to eat it within two months to prevent germination or deterioration.
Refrigerate in the refrigerator
Scientific research shows that fresh iron stick yam can be preserved for 3 years at 1-4 degrees. If there is enough cold storage space in your refrigerator, you can keep the iron bar yam you won't eat for the time being. In order to keep the taste, it is best to keep it with skin, and don't wash the soil off the iron stick yam. Wash it when you eat it to keep its original flavor to the greatest extent, and just wrap it in plastic wrap or put it in a sealed bag.
Tip: Iron stick yam is best separated from fruit, because fruit will release ethylene during slow ripening at low temperature, which will lead to accelerated growth and deterioration of yam.
Step 3 refrigerate
Cold storage method is suitable for large-scale preservation of iron stick yam. The iron stick yam warehouse is actually a constant temperature warehouse, and the temperature of the warehouse is 2 to 6 degrees all the year round. After the iron stick yam is unearthed from Jiaozuo planting base in Henan Province, it will be transported to the cold storage in time to ensure that customers and friends can buy authentic iron stick yam all year round. This is mainly suitable for growers in Jiaozuo, Henan, or friends who are engaged in the wholesale and retail of iron stick yam everywhere.
4. Some benefits of eating yam.
1, nourishing and fitness, delaying aging
Studies at home and abroad have confirmed that yam can promote the brain to secrete dehydroepiandrosterone. Taking dehydroepiandrosterone can improve sleep, make people feel happy, energetic, look young and have a good appetite. To achieve the effect of strengthening the body and delaying aging.
Yam has the functions of nourishing cells, strengthening endocrine, nourishing and strengthening human hematopoietic function, inducing interferon, improving human immune function and improving disease resistance. It plays an important role in delaying aging.
Yam is rich in trace elements beneficial to human body, and has the functions of enriching blood, strengthening brain, tonifying kidney and resisting aging.
2, slimming beauty, skin care and beauty
As a nutritious food, Chinese yam contains a lot of starch, protein, B vitamins, vitamin C, vitamin E, glucose, crude protein amino acids, choline, allantoin and so on. Among them, yam soap, an important nutritional component, is the precursor of synthesizing female hormones, which has the functions of nourishing yin, strengthening yang and enhancing metabolism. Dopamine in yam can dilate blood vessels and improve blood circulation. Improve human digestive function, enhance physical fitness, and improve skin's moisturizing feeling and color. Yam is MM's natural slimming food, which contains enough fiber to make you feel full after eating, thus controlling your appetite. Secondly, yam itself is a kind of food with high nutrition and low calorie, so you can eat more without worrying about getting fat. Yam is MM's natural slimming food, which contains enough fiber to make you feel full after eating, thus controlling your appetite. Secondly, yam itself is a kind of food with high nutrition and low calorie, so you can eat more without worrying about getting fat.
Of course, yam is not only very useful for MM, but also has the same effect on middle-aged and elderly male and female friends. Middle-aged and elderly people often eat yam, which can make them look young, make their skin ruddy and shiny, and make them look youthful. For ichthyosis patients, long-term consumption of yam can make the skin white, smooth and moist.
3, filling essence and strengthening kidney, enhancing sexual function
Yam can tonify qi and yin of lung, spleen, kidney and triple energizer, replenish essence and strengthen kidney, stop nocturnal emission, and make qi and blood biochemical active. It is an important drug for deficiency of both qi and yin and deficiency of lower energizer, and has a good curative effect on kidney deficiency, wet dream, nocturnal emission, premature ejaculation and impotence. It has a good curative effect on sexual dysfunction caused by kidney deficiency in middle-aged and elderly people.
4, filling essence and strengthening kidney, treating frequent urination.
When people get old, frequent urination is very common, especially at night, which is mainly caused by the instability of kidney qi and the decline of kidney yang in the elderly. Severe frequent urination brings great pain to the elderly and affects their life and health. Regular consumption of yam can nourish yin and strengthen kidney, and has a significant effect on the treatment of frequent urination. Frequent urination has a great relationship with urinary retention. I always feel that my urine is not clean. I only pee once, and then I want to pee. Yam not only can replenish essence and strengthen kidney, but also has diuretic effect, which can effectively overcome the symptoms of urinary retention, thus achieving the effect of treating frequent urination.
5. astringe the intestine to stop diarrhea
Yam is sweet, nourishing but not greasy, fragrant but not dry, and has a good effect on diarrhea due to spleen deficiency. Yam is a soothing, nourishing and strong medicine, which can strengthen the spleen, benefit the stomach and widen the intestine, and has a good effect on chronic diarrhea with gastrointestinal dysfunction.
Yam can nourish yin, promote diuresis, lubricate and converge. It can be used for the treatment of fecal diarrhea, because it is beneficial to urination and convenient, so that water can be discharged from the bladder and the moisture in the intestine is reduced, so the symptoms of diarrhea are alleviated.
Yam can strengthen the spleen and stomach, relax the intestines and stop diarrhea, because yam can calm the spleen and strengthen the function of invigorating qi and transporting spleen, so it can stop diarrhea.
6. Treating coronary heart disease complicated with arteriosclerosis
Chinese yam is one of the ideal foods for preventing and treating arteriosclerosis and coronary heart disease for the following reasons:
(1), yam can supply a lot of mucin to human body. This is a mixture of polysaccharide and protein, which has special health care function for human body, and can prevent fat deposition in cardiovascular system and avoid obesity.
(2) Amylase contained in yam can be decomposed into protein and sugar, which is an important substance to maintain human life, and can lose weight, improve intelligence and strengthen the body. The sitosterol contained in yam has the function of lowering blood cholesterol, and has certain curative effect on preventing and treating coronary heart disease and hypercholesterolemia.
3. Yam is rich in cellulose, which can lower cholesterol. Dietary fiber can shorten the time for food to pass through the small intestine, thus reducing the absorption of cholesterol, which is conducive to the conversion of cholesterol into cholic acid and bile acid to be excreted, avoiding the increase of blood cholesterol content and reducing the chance of excess cholesterol and fat being deposited on the blood vessel wall.
④ Yam contains more than 20 kinds of nutrients, such as mucus, amylase, amino acids, trace elements and vitamins, which have the functions of resisting arteriosclerosis and improving blood supply to myocardium.
⑤ Dopamine, an important component of yam, has the function of dilating blood vessels and improving blood circulation, and plays an important role in treating circulatory failure.
⑥. Dioscorea opposita has the functions of regulating endocrine, benefiting qi and dredging pulse, improving coronary artery and microcirculation blood flow, and treating coronary heart disease and angina pectoris.
7, intelligence and brain.
Yam is rich in nutrients, including starch, protein, mucus and other nutrients, especially amylase, which can hydrolyze starch into glucose, directly provide heat energy for the brain and play an important role in strengthening the brain.
Yam is rich in choline and lecithin, which helps to improve the memory of human brain. Yam is rich in nutrition, and has the functions of enhancing the activity of nerve cells, nourishing the heart and calming the nerves, treating amnesia, nourishing the heart and improving intelligence, and enhancing memory.
8. Tonifying deficiency, lowering blood sugar and treating diabetes.
Yam is a top-grade tonic and has a good effect on diabetes. The reason for this is the following：
(1), yam is flat, not cold and not dry, can tonify the five internal organs, and is used to treat deficiency. Diabetes is mainly caused by yin deficiency and dryness-heat, which can quench thirst. Eating yam is good for yin, so yam can treat diabetes.
(2) The glycoprotein contained in yam is hydrolyzed into protein and sugar in vivo, which has the function of lowering blood sugar. Amylase contained in yam can help food digestion and hydrolyze starch into glucose. Therefore, it has a certain curative effect on diabetes, and people with weak stomach can also eat it.
(3) Yam can not only tonify qi, but also nourish yin, which is not stagnant, nourishing but not greasy, invigorating spleen and benefiting stomach yin. It is an essential drug for invigorating spleen and regulating stomach, suitable for diabetic patients to eat for a long time, and has obvious curative effect on mild diabetes.
9, qi and qi, cough and asthma.
Yam has the effects of tonifying lung, benefiting qi, nourishing yin, relieving cough, regulating lung and resolving phlegm, and can be used to treat lung deficiency, deficiency of both qi and yin, shortness of breath, chronic cough, deficiency of asthma, etc. Yam has the effects of nourishing, inducing interferon, enhancing immunity, regulating endocrine, relieving cough, resolving phlegm and relieving asthma, and can be used for treating chronic tracheitis.
10, rich in organic germanium, used to treat cancer.
Yam is rich in many trace elements beneficial to human body, especially organic germanium, which has anti-cancer effect. Yam has the characteristics of warming but not sudden, slightly fragrant but not dry, which is very suitable for dietotherapy of cancer patients.
1 1. Enhance human digestion and absorption function, and treat anorexia and dyspepsia.
Yam can strengthen the spleen and stomach, make the spleen and stomach healthy, enhance the digestion and absorption function of human body, stimulate appetite, and enhance physical fitness, and has a good curative effect on anorexia, anorexia and dyspepsia in children.
12, which can make people smart.
Yam melts into the body to replenish qi, promote granulation and strengthen yin. Eating yam often can make people smart, intellectual fit and not hungry, and prolong life.
13, softening and resolving hard mass, treating swelling and lumps, tuberculosis and other diseases.
External application of yam mud has the effect of softening hard mass and resolving hard mass, and can be used to treat diseases such as swelling, lumps and tuberculosis. But also has a good curative effect on inflammatory diseases such as mastitis, breast swelling and pain, furuncle and chilblain.
14, strengthening bones, treating rickets.
Mucopolysaccharide in yam can form bone after combining with inorganic salts, which makes cartilage have certain elasticity, so it has certain curative effect on rickets.
15, preventing connective tissue atrophy and collagen disease.
Yam can prevent connective tissue atrophy of liver and kidney, prevent collagen disease and keep the lubrication of digestive tract, respiratory tract and joint cavity.