Autumn is a harvest season and the best time to enjoy food. Whether you want to eat delicate, creamy hairy crabs, or juicier, juicy, nutritious jujube, or hot, smooth, fragrant hotpot... it can meet your needs. However, the autumn is also an important time for health, so each way to eat these foods, we must also pay attention to some taboos!
Jujube delicious and rich in vitamin C
Excessive consumption affects digestion
After the fall, the weather in Jinan slowly cooled, and the frenzy of eating watermelon followed. The fruits of autumn were also selling hot. The most representative of them was dates.
The nutritional value of fresh dates is more prominent is the high content of vitamin C, vitamin C content per 100 grams of fresh dates is 243 mg, normal daily intake of vitamin C for adults is 100 mg. Therefore, every hundred grams of fresh dates can meet the needs of our one-day vitamin C, and it is necessary for autumn health.
However, although the nutritional value is high, but preferably no more than 20 at a time, because fresh jujube skin hard, more difficult to digest, will increase the burden on the gastrointestinal tract, eat too much will stimulate excessive gastric acid secretion, bloating, impaired digestion , causing digestive diseases. Moreover, due to its high sugar content and sugar content of more than 20%, therefore, abdominal flatulence, menstrual women, stomach patients and diabetic patients are not suitable to eat more. In addition, people who use phlegm and constipation must be careful to eat, because the jujube is hot and it helps the body to get hot.
In particular, it is important to remind you not to buy dates that are rotted or have soft depressions. Decayed Jujube Under the action of microorganisms, the enzyme in the jujube continues to decompose pectin, producing pectic acid and methanol, and methanol can be decomposed to produce formaldehyde and methanol. Eat too much rotten jujube will appear dizziness, visual disturbances and other poisoning reactions, so pay special attention.
The autumn is hot pot
A few dishes are better off
With the deepening of the autumn, hot pots are again "returning from the lakes". Relatives and friends sit together and enjoy a delicious hot pot. After eating, the body is warm and very pleasant. However, there are several dishes to remind you to do better when you are enjoying the sweaty, fresh and smooth hot pot.
The first is high-purine foods. A survey found that, in addition to factors such as physical fitness and fatigue, gout is prone to develop with increased frequency of eating hot pots. This is related to eating seafood, animal organs, mushrooms and other foods containing a large number of purines. This is also one of the reasons that gout is prone to high rates in the autumn of hot pots and oyster dishes.
Secondly, on the hotpot table, livestock and poultry visceral foods are also relatively common. Given the application of pesticides, fertilizers, and additives in the food production process, the internal organs of animals, as metabolic organs, often become “filters†and “filters†for such harmful substances. The reservoir, especially the liver and lungs, contains the highest residual amount. It is recommended that you eat less during the good season of autumn.
In addition, the body is easy to dry in the fall, and patients with oral diseases will also increase, people with oral leukoplakia or lichen planus, eating hot pot is more likely to make the disease worse. Therefore, people must not worry about eating hot pot, rather sacrifice some of the taste, but also to thoroughly scoop the food, it is best to put the food in the bowl first cool and then eat.
No feast for crabs
The following people have to endure
"After the autumn wind, crab legs itch; chrysanthemums open, smell the crabs," every year from September to October is the time when the crabs are full of oil, so there is food to say "fall in order to eat crabs as the most solemn thing." In addition to its delicious taste, the nutritional value of crabs is also very high. Crabs contain a lot of protein and are mostly high-quality proteins. These high-quality proteins also contain amino acids, which can increase lymphocyte immunity and promote wound healing and resistance. The efficacy of infection, after surgery or injured people can eat more.
Not only that, but also a large amount of selenium in crabs. The selenium content in crabs per 100 grams is as high as 56.7 micrograms. Selenium-enriched foods can improve the body's immune system, but also can prevent cancer and cancer.
However, although autumn is the best season to eat crabs, due to the special nature of crabs, people suffering from cold, fever, stomach pain, and diarrhea are not suitable for people with digestive tract inflammation or ulcerative cholecystitis, gallstone disease, and active hepatitis. People with coronary heart disease, hypertension, arteriosclerosis, and hyperlipidemia should eat less or not eat crab yellow. Crab meat should not be eaten too much. Remind the above people that they must hold back!
In addition, it is also necessary to make everybody aware that when eating crabs, they must not be greedy and delicious. Crabs are cold, and if they are eaten too much, they may affect their gastrointestinal health. Don't drink tea when you eat crabs and within 1 hour after eating crabs. Because boiling water will dilute stomach acid, the tea will solidify certain components of the crab, which is not conducive to digestion and absorption, and may also cause abdominal pain and diarrhea.
At the same time, do not eat crabs and persimmons, because the citric acid and other components of the persimmon will cause the crab meat protein to coagulate. The coagulation material will remain in the intestine for a long time to ferment and corrupt, causing vomiting, abdominal pain, diarrhea and other reactions, and may also cause stone disease. Wait.
PCR ( Polymerase Chain Reaction)
It provides a way to make more copies of a portion of DNA.
We need to have PCR ingredients that include DNA portion, Buffer solution, Primer+DNA (tap polymerase), and Nucleotides during the preparation step.
In the step of PCR sequence, there are three steps in this section.
Step 1 Denaturation
The addition of heat is needed to separate the two strands of the DNA molecule.
Step 2 Annealing
Temperature, is going to be cool in this step, should allow the primers to bind to the specific segments.
Step 3 DNA Synthesis
To make more copies of the DNA.
Those three steps above keep repeating to make enough copies of the DNA fragments. It is the principle of how PCR machine works.
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