Discussion on functional foods of dietary fiber
coterie班级:10食品营养与检测 姓名：李勇 学号：************
Abstract: human society entering the 21st century, significantly improve people's living standard, increasingly fine diet, incread attention to health, a part of as a function of dietary fiber in foods, who physiological function has been a hot food area of rearch, side by side as one of the functional components of health food. Function of dietary fiber in the field of nutrition is of great concern, will no doubt greater application in healthy eating and playing an important role.
Key words: dietary fiber physical health functional food development
qbaText: nutrition of dietary fiber by 1970 the term did not appear in, is a complex mixture of collectively, is a generally difficult to digest food and nutrients. Furthermore, dietary fiber known as following the water, protein, fat, fresh water outside the compounds, minerals, cellulo "venth nutrients". Mainly from plant cell walls containing cellulo, hemicellulo, pectin and lignin resin,
A. Structure and characteristics of main components of dietary fiber
1, cellulo cellulo cannot be human intestinal enzymes of the digestive tract. Cellulo is hydrophilic, role in intestinal absorption of moisture.
2, hemicellulo: hemicellulo in the human large intestine than the susceptible bacteria cellulo decomposition. It has the combination of ion. Some ingredients are soluble in the hemicellulo. Most of them are not soluble hemicellulo and its physiological role is also played.
one life3, pectin: pectin is an amorphous substance, prent in fruits and vegetables in the soft tissue, can be dissolved in hot aqueous solution, acid formation of colloidal of heating in aqueous solution. Pectin also has the ability to combine with interest.
4, gum: gum chemical structure due to different sources and there are differences. Main ingredient is half lying using glyoxylic acid, lactic acid, polysaccharide formed Arab gluco and manno, it can be disperd in wate
普通人英语
5, wood quality: lignin is not a polysaccharide material, polymers of propylene phenyl class, with complex three dimensional structures. Becau lignin is difficult to parate from the cellulo in the cell walls, which include the lignin component of dietary fiber. People and animals can't digest. Victoria is a human intestinal digestion and absorption resistance, and in the human large intestine part or all of the fermentation of edible plant components, sum of carbohydrates and similar substances. Dissolved in water can be divided into two basic types
6, resistant starch: resistant starch include modified starches and starch on starch after heating and cooling, they will not be within the small intestine absorb
B. Physiological function of dietary fiber
hb是什么意思
高尚的意思Dietary fiber cannot be human digestion and absorption, but important physiological role of dietary fiber in the body, is a class of nutrients esntial to maintain human health. Becau of dietary fiber in human gastrointestinal dia prevention and maintenance of gastrointestinal health feature highlights, hence "intestinal cleaning" in the world.
正确的洗头方法
1, and dietary fiber of suction water dissolved expansion performance conducive to incread food minced of volume, stimulate gastrointestinal road of Peristaltic, and softened stool, prevent constipation, promoting row will and incread will times, up to a guide relea of role, reduced stool in intestinal in the of stagnation time and the stool in the harmful material and intestinal of contact, maintained intestinal clean, to reduced and prevention gastrointestinal road
2, dietary fiber can inhibit the absorption of cholesterol, prevention of hyperlipidemia and hypertension.
3, dietary fiber can delay and reduce the absorption of heavy metals and other harmful substances, reduction and prevention of the toxic effects of harmful chemicals on the human body.apps是什么意思
lastmonth
4, Dietary fiber can improve the intestinal flora to maintain the ecological balance of the body's micro favor the synthesis of certain nutrients.
5, soluble dietary fiber has a strong suction swelling properties, expansion after absorbing water to increa the volume and weight of 10 to 15 times, both to increa people's n of satiety, but also reduce the absorption of dietary fat, reducing dietary fat heat ratio, relative to control and reduce total dietary energy, avoid heat surplus and lead to excessive accumulation of body fat, can solve the problem of fullness without starving, but also to achieve the purpo of weight control weight loss
6, scientific discovery, the sharp ri in postprandial blood gluco control and improve gluco tolerance in terms of the effect of soluble dietary fiber. Dietary fiber can slow the absorption of gluco, postponed digestible carbohydrates such as starch digestion, avoid the sharp ri in blood sugar after meals, dietary fiber incread nsitivity to insulin, but also directly affect the islet a-cell function, improve insulin in the blood regulation, improve the body's level of gluco tolerance, and conducive to treatment and rehabilitation of diabetes. The studies show that adequate dietary fiber content of the diet, either in the prevention or in the treatment of diabetes has special effects.
教育机构排名
