Corn starch: composition, properties and scope
Corn starch has a number of useful properties. Its presence is imperceptible in products, it is transparent and effective as a thickener. As a baking powder, starch is actively used in the food industry and cooking homemade dishes. Having many useful properties, this product is also used in the cosmetic industry and pharmacology. Corn starch is indispensable in the manufacture of fabrics and paper.
What's this?
Cornstarch is functional and is used extensively in the food industry, the cosmetics industry, and home cooking. The color of starch is translucent or whitish; when impregnated with water, the substance can quickly increase in volume.
Cooking flour and starch have different principles. Flour is obtained by mechanical grinding of corn kernels.
As for starch, it is obtained in a different way. Starch is obtained by soaking corn in sulfuric acid. As a result of coarse grinding, product grains are separated, while fine grinding separates starch from fiber. Then there is a repeated purification of the product using a centrifuge.
After the cleaning takes place, the corn is soaked in hot water for at least 5 hours. In fact, this process can be called controlled fermentation, in which sulfur oxide is added.All these tricks give a positive result: harmful bacteria, fungal spores are killed, and the growth of beneficial microorganisms is stimulated. After soaking, the grains triple in size. The excess water is then removed by evaporation and centrifugation.
The color of starch sometimes differs from the usual one, it may have a dark yellow color.
This product is nutritious and healthy, it has a huge amount of various trace elements and fatty acids. Starch contributes to the normalization of metabolism, strengthens the nervous system, activates the brain and heart.
The molecular structures of corn and potato starches differ markedly. The mixture of the latter is thicker and more sticky. The cost of corn starch is lower (up to one hundred rubles per kilogram), its use in industry, from an economic point of view, is more than justified. Food manufacturers actively use this product by adding it to various products. This practice is especially widespread in the United States, where long-term programs to reduce the cost of products have been officially adopted.
And also corn starch can often be found in the production of plastic bags and PVC film.
What is modified starch?
Modified starch is in no way associated with GMOs, there are no cells in starch, therefore, a priori, it cannot be modified at the gene level. The word "modified" means "changed", that is, the substance was subjected to a certain processing, as a result of which a change in its qualities occurred. In total, GOST provides for the use of at least two dozen types of corn starch. Each of them has its own performance characteristics and is used in various technological cycles.
First of all, when processing starch, the characteristic odor is eliminated; this is necessary if the raw material “works” in the cosmetic or food industry.
It is often necessary to change the color of starch, especially such a need arises if the substance is used for technical purposes. Starch is also used in bulk products, then they acquire higher qualities, become more plastic, and significant clumping does not occur in them.
Often cornstarch is used in the production of various powders (including those for infants), bakers also actively use it in their work.
In the food industry, starch is most often found in such products:
- ketchups;
- confectionery;
- bread.
Cornstarch can be a natural and effective flavor enhancer, which is why it is especially common in baked goods. In the manufacture of sausages and frankfurters, starch is used in a permanent mode, this product costs less than soy, not to mention meat. In baby food, special starch is used, which has been thoroughly cleaned in special units.
What is useful?
Starch does not pose a danger to the human body. However, the product should be consumed in reasonable amounts. The substance consists of complex carbohydrate compounds, therefore, in diabetes, the benefits of cornstarch are significant, it is part of many diets.
The disintegration of the product takes a long time, so the level of sugar in the blood practically does not rise. Starch is necessary and useful for patients suffering from:
- cardiovascular diseases;
- ailments of the genitourinary system;
- diseases of the liver and pancreas;
- digestive tract.
Starch is almost identical in composition to cornmeal, so the two are interchangeable. The technology for obtaining flour is simpler; it does not go through a complex processing cycle. As a result of its use, a cloudy darkish precipitate can often be observed. It is often used to prepare a variety of sauces.
Carbohydrates are broken down quite slowly, this gives a noticeable decrease in the rate of sugar generation. Starch has a very good effect on the resistant properties of the immune system, promotes the accumulation of muscle mass, and stops various infectious inflammatory processes. It has a positive effect on neurons, which helps to relieve mental fatigue and depression.
It is recommended to use the product for patients suffering from anemia, as well as hypertension. Starch is gluten-free, making it ideal for preparing various meals for diabetic patients.
Tapioca starch can also be an analogue of such a product; gluten is also completely absent in it. One of the commonly used varieties of corn starch is amylopectin starch, it is of artificial origin, but its thickening and transparency are noticeably lower.
Benefits of using cornstarch:
- removes toxins and slags;
- prevents excessive blood clotting;
- is a diuretic;
- has an anti-inflammatory effect;
- stimulates appetite;
- used as a means for weight loss;
- improves skin condition.
In type 2 diabetes, cornstarch is especially useful to use, it prevents glucose from being absorbed into the blood for a long time. It should be remembered that starch does not cause glycemic drops only if its amount does not exceed 18-20%.
Harm
There are a number of diseases in which this product is not recommended.
If starch is used in large quantities, then the metabolism slows down noticeably. But also often there is a lack of moisture in the body.
The product may be harmful to people who have high blood clotting, they should refrain from taking this product. Excessive consumption of corn starch is contraindicated in patients suffering from diseases of the intestines, stomach, it is useful to use it only in small quantities. For patients with diabetes, the use of the product is permissible no more than 160 grams per day.
Calorie content and nutritional value
In accordance with GOST, corn flour has the following composition:
- water - 15%;
- acid - 21-26 cm3;
- protein - 0.9-1%;
- presence of SO2 – 52 mg/kg.
And also in starch there are various trace elements: selenium, manganese, phosphorus and many others. The calorie content of the product is 380 kcal, which is 25% of the normal level.
For 100 grams of product there are:
- protein - 0.31 g, 0.38%;
- fats - 0.11 g, 0.16%;
- carbohydrates - 91.2 g, 71.35%;
- dietary fiber - 0.91 g, 4.6%;
- water - 8.32 g, 0.33%.
The glycemic index (GI) is an indicator that indicates the sugar content after a particular food has been eaten. The GI level is actually a measure of the level of sugar, which indicates how much carbohydrates from the body can be absorbed. A similar parameter can only be present in food that contains carbohydrates, where there are proteins and fats. They are absorbed gradually, so there are no sharp drops in sugar levels.
Corn starch has an optimal GI level, so it is recommended for diabetics.
BJU - the proportionality of proteins and carbohydrates (1: 303).Protein contains only 0.31 units, no gluten. There are many amino acids, as well as complex protein compounds.
Where is it used?
On the packaging, this product is designated E1422. Corn starch is often used for homemade dishes. For example, when preparing jelly for thickening, the product is of natural origin, it cannot provoke any side effects. This product is suitable for diabetics, it is part of many dishes of people who are thinking about losing weight and losing weight. From it you can cook a lot of dietary dishes.
In cooking
In this area, the product effectively "works" as a thickener. After dissolving the substance in water, it is heated and then allowed to cool, after which the mixture becomes jelly-like. In terms of its performance characteristics, the product from corn is inferior to potato starch, yet it is often used in the preparation of homemade dishes and various industries.
The product has a particularly delicate gluten, so it is perfect for cooking meals at home:
- toppings for cakes;
- thickener for sauces and puddings;
- when preparing first courses;
- yogurt;
- sweets and cakes;
- test preparation.
When used in baking, corn starch can make the product crumbly, juicy, and delicate in taste. The product is actively used in the meat and dairy industry and in the manufacture of baby food, where corn starch is used as an absorbent.
In cosmetology
Starch has a beneficial effect on the skin, it is often used in the manufacture of various compresses used to rejuvenate the face and renew the epidermis.
It is important to immediately understand that the body does not have allergic reactions to this composition. But also there should not be any scratches on the skin or abrasions.Here are some basic face mask recipes.
Botox effect is done as follows:
- a tablespoon of the composition;
- half a tablespoon of olive oil;
- crushed tomato (small)
The mask is applied in a thin layer to the skin and aged for a quarter of an hour, then washed off with warm water.
Wrinkle smoothing:
- warm milk 2 tablespoons;
- one teaspoon of honey;
- a small pinch of salt.
After the sauna, apply a thin layer on the face, when the mask dries, apply the second layer. It is aged for a quarter of an hour and washed off with warm water.
Pimple Remedy:
- boiled milk - 2 tablespoons;
- cereals;
- adding a teaspoon of honey;
- a pinch of salt;
- cornstarch - 2 teaspoons.
It is applied to the skin of the face, rubbed with a thin layer, after twenty minutes the composition can be washed off with warm water.
Corn starch helps to get rid of black spots on the face, it also reduces oily skin:
- egg white, egg - 1 pc.;
- two tablespoons of the composition;
- tea tree oil - 1 teaspoon.
The mixture is stirred and rubbed in such a layer. The mask is aged for twenty minutes
Skin elasticity:
- a glass of cream;
- 2 tablespoons of the composition;
- puree made from crushed banana.
The mixture is thoroughly mixed and applied in a thin layer. It takes 12 minutes for the composition to be absorbed into the pores of the skin. Then the mask is gently washed off with warm water.
In medicine
In the people, the product is often used as a medicine, it can effectively reduce pressure.
For 200 g of water, dissolve 15 g of starch, drink on an empty stomach in the morning. Repeat the operation for half a month. The product stimulates the digestive tract, as well as the pancreas. For 200 g of hot water, one tablespoon of starch is added, a couple of drops of iodine. Mix thoroughly and drink.
With dysfunction of the gallbladder during the week, it is taken three times in 24 hours. One and a half glasses of water dissolves 30 grams of the product.
You can also make compresses against bruises and abrasions. Two teaspoons of starch are added to one tablespoon of water. Apply at night as a compress. If the wound is deep, then the procedure should be repeated several times.
In the textile industry
Most of all, corn starch is used in the manufacture of paper and fabrics. And also for the last decades the product has been involved in the manufacture of plastics. Starch is an effective thickener, it is inexpensive, and it is actively used in the textile industry. The threads are passed through a solution (dressing), which makes it more durable. After that, it can be used in weaving. The so-called sizing cycle consists of two phases:
- gluing threads (wetting and impregnation);
- pressing and drying.
The grain size of the product is 15.2 microns, it is actively used in the manufacture of dressing. It has the following advantages:
- gets wet well;
- forms a strong film;
- has a low viscosity coefficient;
- is inexpensive;
- has excellent quality.
Sometimes corn starch is not suitable for making some fabrics, as it has a rather high stiffness factor.
For information on the composition, properties and scope of corn hramala, see the following video.