Food Ingredients---Ubiquitous Gelatin
2024-12-31
What is gelatin
Gelatin is made from animal skin, bone, muscle membrane, muscle charm and other connective tissues in the collagen part of the degradation and become white or yellowish, translucent, slightly glossy flakes or powder particles; so it is also called animal gelatin, fat glue.
It belongs to a kind of macromolecule hydrocolloid, gelatine is a kind of low-calorie health food with high nutritional value, and can be used to make candy additives, frozen food additives, etc. In addition, gelatine is also widely used in the production of food. In addition, gelatine is also widely used in the pharmaceutical and chemical industries.
It belongs to a kind of macromolecule hydrocolloid, gelatine is a kind of low-calorie health food with high nutritional value, and can be used to make candy additives, frozen food additives, etc. In addition, gelatine is also widely used in the production of food. In addition, gelatine is also widely used in the pharmaceutical and chemical industries.
What is gelatin made of
Gelatin is the product of partial hydrolysis of collagen. Gelatin is a mixture of water-soluble proteins, collagen in skin and ligaments is partially hydrolysed by acid or alkali or dissolved by boiling in water to form a gel.
Gelatin is a nutritionally incomplete protein, lacking certain essential amino acids, especially tryptophan, and is widely used in food and in the production of adhesives and photographic negatives.
Gelatin is made from boiled animal bones, skin and tendons and is commonly used to make jelly and other desserts. According to its properties and uses, it can be divided into photographic gelatine, edible gelatine and industrial gelatine. According to the different uses, the quality requirements of gelatine are also different. When used as a binder, the main requirement is bonding strength.
When used in photographic, food and pharmaceutical fields, the purity of the product is emphasised.
Gelatin is a nutritionally incomplete protein, lacking certain essential amino acids, especially tryptophan, and is widely used in food and in the production of adhesives and photographic negatives.
Gelatin is made from boiled animal bones, skin and tendons and is commonly used to make jelly and other desserts. According to its properties and uses, it can be divided into photographic gelatine, edible gelatine and industrial gelatine. According to the different uses, the quality requirements of gelatine are also different. When used as a binder, the main requirement is bonding strength.
When used in photographic, food and pharmaceutical fields, the purity of the product is emphasised.
The application of gelatin in food
1. Frozen food improver
In frozen food, gelatine can be used as jelly agent, gelatine jelly melting point is low, easy to dissolve in hot water, with the characteristics of melt in the mouth, commonly used in the production of meal jelly, food jelly and so on. Gelatin can also be used for the production of jelly, gelatin jelly in the warm and has not yet dissolved in the syrup will not crystallise, warm jelly in the clots can be stirred to re-form jelly.
In frozen food, gelatine can be used as jelly agent, gelatine jelly melting point is low, easy to dissolve in hot water, with the characteristics of melt in the mouth, commonly used in the production of meal jelly, food jelly and so on. Gelatin can also be used for the production of jelly, gelatin jelly in the warm and has not yet dissolved in the syrup will not crystallise, warm jelly in the clots can be stirred to re-form jelly.
2.Stabiliser
Mainly used in the production of ice cream, ice-cream, etc. The role of gelatine in ice cream is to prevent the formation of coarse ice crystals, to maintain the delicate organisation and reduce the speed of dissolution. In order to obtain excellent ice cream, the content of gelatine must be just right. If it is too little, it produces a coarse, brittle and weak structure; if it is too much, it is too sticky; both affect the quality of the ice cream.
Mainly used in the production of ice cream, ice-cream, etc. The role of gelatine in ice cream is to prevent the formation of coarse ice crystals, to maintain the delicate organisation and reduce the speed of dissolution. In order to obtain excellent ice cream, the content of gelatine must be just right. If it is too little, it produces a coarse, brittle and weak structure; if it is too much, it is too sticky; both affect the quality of the ice cream.
3.Meat product improver
Gelatin as a jelly agent added to meat products, used for aromatic wild boar, meat jelly, canned ham, mouth strips, veal, ham pie, canned meat and Zhenjiang delicatessen meat and other products, improve the yield and quality of the product. In addition, gelatin can also play the role of emulsifier for some meat products, such as emulsification of meat sauce and cream soup fat, and to protect the original characteristics of the product.
Gelatin as a jelly agent added to meat products, used for aromatic wild boar, meat jelly, canned ham, mouth strips, veal, ham pie, canned meat and Zhenjiang delicatessen meat and other products, improve the yield and quality of the product. In addition, gelatin can also play the role of emulsifier for some meat products, such as emulsification of meat sauce and cream soup fat, and to protect the original characteristics of the product.
4.Thickening agent
In canned food, adding gelatine powder can avoid sticky lid. In the production process of canned meat can be added to a certain proportion of gelatin solution, which can not only increase the meat flavour and thicken the soup; but also form a smooth surface with good transparency, so that the canned meat looks more attractive.
In canned food, adding gelatine powder can avoid sticky lid. In the production process of canned meat can be added to a certain proportion of gelatin solution, which can not only increase the meat flavour and thicken the soup; but also form a smooth surface with good transparency, so that the canned meat looks more attractive.
5.Beverage clarifier
Gelatin can be used as a clarifying agent for the production of beer, fruit wine, wine, fruit juice, yellow wine, batam nut milk drinks, etc. Its mechanism is that gelatin can generate flocculent precipitation with tannin, after standing, flocculent colloidal particles can be adsorbed with turbidity, cohesion, block and co-sedimentation, and then removed by filtration.
Gelatin can be used as a clarifying agent for the production of beer, fruit wine, wine, fruit juice, yellow wine, batam nut milk drinks, etc. Its mechanism is that gelatin can generate flocculent precipitation with tannin, after standing, flocculent colloidal particles can be adsorbed with turbidity, cohesion, block and co-sedimentation, and then removed by filtration.
6.Dairy additives
Gelatin is widely used in a variety of dairy products such as yoghurt, acidic thin milk, soft cheese, flavoured milk and so on. Gelatine has three main functions in dairy products:
First, anti-whey precipitation, gelatin through the formation of hydrogen bonds to prevent whey precipitation, to avoid casein contraction, thus preventing the solid phase from the liquid phase separation.
Second, emulsification and stabilisation, casein itself is a natural emulsifier and stabiliser, but casein in the acidic environment will lose the ability to emulsify and stabilise, and gelatine can provide stabilising conditions for casein, playing a role in protecting the colloid.
Thirdly, it is the stabilizer of milk foam, all milk foam can be regarded as air-fat-water emulsification system, gelatin as a hydrocolloid can be combined with water to form a gelatin thin layer covering the fat globules and wrapping the air bubbles, which reduces the influence of the external conditions on the air pressure in the air bubbles to stabilise the foam, so as to build up a stable emulsification state. The effect of stabilising the foam is achieved, thus establishing a stable emulsification state.
Gelatin is widely used in a variety of dairy products such as yoghurt, acidic thin milk, soft cheese, flavoured milk and so on. Gelatine has three main functions in dairy products:
First, anti-whey precipitation, gelatin through the formation of hydrogen bonds to prevent whey precipitation, to avoid casein contraction, thus preventing the solid phase from the liquid phase separation.
Second, emulsification and stabilisation, casein itself is a natural emulsifier and stabiliser, but casein in the acidic environment will lose the ability to emulsify and stabilise, and gelatine can provide stabilising conditions for casein, playing a role in protecting the colloid.
Thirdly, it is the stabilizer of milk foam, all milk foam can be regarded as air-fat-water emulsification system, gelatin as a hydrocolloid can be combined with water to form a gelatin thin layer covering the fat globules and wrapping the air bubbles, which reduces the influence of the external conditions on the air pressure in the air bubbles to stabilise the foam, so as to build up a stable emulsification state. The effect of stabilising the foam is achieved, thus establishing a stable emulsification state.
7. Food coating materials
In recent years, gelatine has been used more often for food coating in Japan and other countries. Coating gelatine on the surface of food has the following advantages: (1) when two different foods are combined together, coating gelatine can inhibit the browning reaction; (2) preventing the food from absorbing moisture and stiffness; (3) it can make the surface of the food glossy and improve the quality of the food; (4) it can prevent the food from deteriorating and oxidising; (5) gelatine as a stabiliser to prevent the product from drying and deformation; and (6) preservation of freshness.
In recent years, gelatine has been used more often for food coating in Japan and other countries. Coating gelatine on the surface of food has the following advantages: (1) when two different foods are combined together, coating gelatine can inhibit the browning reaction; (2) preventing the food from absorbing moisture and stiffness; (3) it can make the surface of the food glossy and improve the quality of the food; (4) it can prevent the food from deteriorating and oxidising; (5) gelatine as a stabiliser to prevent the product from drying and deformation; and (6) preservation of freshness.
8.Other applications
In food production, gelatine can also be used to make cakes and a variety of icing, due to the stability of gelatine, this icing even in hot days when the liquid phase increases does not penetrate into the cake, but also to control the size of the sugar crystals. Gelatine is also used in the production of coloured beads for ice cream, sugar-free canned goods, etc.
In food production, gelatine can also be used to make cakes and a variety of icing, due to the stability of gelatine, this icing even in hot days when the liquid phase increases does not penetrate into the cake, but also to control the size of the sugar crystals. Gelatine is also used in the production of coloured beads for ice cream, sugar-free canned goods, etc.
The chemical composition of gelatine contains 18 amino acids. Since gelatine does not contain the essential amino acid tryptophan, it cannot be called a ‘high quality protein’ like eggs and milk, but it can be optimally combined with complementary foods.
Gelatin is a food additive, a small amount of consumption is not harmful to the human body, but there is not much nutrition, and we all know that foods such as jelly, fudge and other foods are not easy to be digested by the human body, if consumed in excess may cause indigestion.
Gelatin is widely recognised as a safe food additive. It undergoes a rigorous production and extraction process and is usually free of harmful substances. However, there may be instances of allergic reactions to gelatin in individuals, especially those who are allergic to animal proteins. Therefore, when using foods containing gelatin, individuals should be aware of their own allergy history and follow the relevant recommendations and instructions for use.
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