Oat food can reduce blood lipids and serum cholesterol, and has an important effect on the prevention and treatment of cardiovascular and cerebrovascular diseases and diabetes. Among them, the effective component of health care is β in oats.-Dextran.
(1)β-Dextran can reduce the absorption rate of fat and cholesterol in the small intestine, thus reducing serum cholesterol; in addition, β-Glucan can also reduce the absorption of carbohydrates in the small intestine, thus reducing the plasma insulin concentration and reducing the stimulation of cholesterol and lipoprotein synthesis.
(2)β-Dextran binds to bile acid in the small intestine, which increases the excretion of bile acid and the synthesis of bile acid, thus accelerating the conversion of cholesterol to bile acid.
(3)β-Dextran produces short chain fatty acids by microbial fermentation in the colon, which inhibits cholesterol synthesis.
Other studies suggest that β-Dextran can regulate the level of glucose, hormone reaction, vitamins and minerals in the blood, and has a positive effect on the prevention of colon cancer. β-Dextran is a low-calorie food, which is not easy to be digested and absorbed by human body after consumption, which can slow down the increase of glucose content in blood, prevent and control obesity, diabetes and cardiovascular disease. And because of β,-Dextran has the property of water absorption and swelling. After eating, people can absorb water and expand in the stomach, resulting in satiety and preventing excessive diet. In addition, it can promote intestinal peristalsis, infiltrate in the colon, prevent constipation, shorten the time for waste to pass through the intestinal tract, reduce the contamination of intestinal carcinogens to the intestinal tube, and achieve the anti-cancer effect. In the mouth, β-Dextran can not be decomposed by bacteria to produce dental caries, and has the functions of preventing dental caries, and has the effects of preventing dental caries.
As early as many years ago, scientists discoveredbataMonodextran can reduce the rate of absorption of fatty acids by intestines and stomach,Reducing the synthesis of cholesterol in human body.withbataThe research of a glucan is becoming more and more mature, and the scholars have carried out a lot of experiments on the animal and human experiment level.,Confirmed.bataMonodextran has specific physiological functions in reducing cholesterol and low density lipoprotein..Scientists have found thatbataThe effect of monodextran on cholesterol is mainly due to the significant decrease of total cholesterol in plasma.(TC)and low density lipoprotein cholesterol(LDIOneTC),And for high density lipoprotein,(HDL)And glycerin vinegar.(TG)There is no obvious effect on benevolence. Oat dextran has a significant effect on cholesterol reduction in hyperlipidemia population.
There are four hypotheses about the mechanism of the reduction of cholesterol in oat-dextran:
1 binding bile acid,increases the excretion of bile acids,So as to lower the bile acid level and the plasma cholesterol concentration.
The invention can be used for producing short-chain fatty acid by microbial fermentation in the intestinal tract, and can inhibit the synthesis of cholesterol in the liver.
3 can be promotedLDLOneCBreak down.
4. High viscosity environment can be formed in digestive tract, which hinders the absorption of fat, cholesterol and bile acid in digestive tract.
The patient's blood sugar level can be reduced by about 50% after daily consumption of the Dextran oat food50%The effect of oat food on reducing blood glucose can improve blood flow performance by reducing blood lipid content and improving blood flow performance.,The transport speed and the efficiency of the carbohydrate component in the absorption and utilization process are accelerated, and meanwhile, the liver and kidney tissue lesions concurrent with the diabetes have good repair effect, and the decomposition of the liver glycogen can be effectively reduced, so that the blood sugar is reduced.
Oat dextran has immunomodulatory effect,OatspDextran can increase the value of lymphocytes in mice,To enhance the ability of mice to resist the invasion of bacteria; to stimulate the release of tumor necrosis factor from peritoneal macrophages in mice(TNFOneALPHAhe)And IL-1.1(In-terlukinILOne1)And macrophages.p338DIRelease, intragastrically or extraintestinal injection of oat glucan,The number of serum immunoglobulin in mice increased significantly, which indicated that oat dextran could improve the immunity of mice.
Short-chain fatty acids produced by the fermentation of oat-dextran in the intestinal tract,can reduce the glucanase of the grape,The activity of microbial metabolic enzymes such as glucuronidase and pulse enzyme; sticky.pMonodextran,It can also increase the excretion of secondary cholic acid in the intestine.,These enzymes and secondary chenodeoxycholic acid are the inducing factors of colon cancer.,Therefore, oat dextran has anticancer effect..
Improve The Intestinal Tract
Oat dextran cannot be hydrolyzed in the small intestine,And degrade it in the large intestine and act as a substrate for bacterial fermentation.,Fermentation produces short chain fatty acids,Especially butyric acid.,beneficial for intestinal function.OatspDextran can increase the value of Bifidobacterium and Lactobacillus in mouse intestine and feces.,And the number of Escherichia coli is reduced, so oat glucan can also improve intestinal function.,Promote the increment of intestinal beneficial bacteria.
The Effect of Beauty
It has long been known to use oats to treat skin dryness and itching. The application method is that the oat is directly made into a paste to be applied to the skin. However, because that method for prepare the oat has different quality and high effect, the quality of the oat is difficult to be stable. With the development of science and technology, the main components and mechanism of the skin care of oat are gradually discovered.
Oat β-Dextran has excellent anti-aging effect, which can smooth fine wrinkles, improve skin elasticity and improve skin texture, and has a unique straight chain molecular structure, which endows it with good transdermal absorption. Promote fibroblasts to synthesize collagen, promote wound healing, repair damaged skin, give skin silky moisturizing and smooth touch.