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Food & Feed Additives

FOOD ADDITIVES
Food additives refer to natural substances or chemical compounds added in a small amount to food to improve the color, aroma and taste of food, or to prevent deterioration
or oxidation of food. However, food fortifiers for the purpose of enhancing the nutritional composition of food should not be included in the scope of food additives.
Now there are two kinds of common food additives, natural food additives and synthetic food additives. Natural food additives are mainly extracted from plants, animals or
microorganisms. Synthetic food additives are prepared by artificial chemical synthesis.

Food additives mainly include: preservatives, antioxidants, chromogenic agents, bleaching agents, sour taste agents, coagulants, loosening agents, thickeners, defoamers,
sweeteners, colorants, emulsifiers, quality improvers, anticoagulants, flavor enhancers, enzyme preparations, coating agents, foaming agents, antistaling agents, spices,
nutritional fortifiers, etc., including, of course, the common salts in our lives.

The main functions of food additives are as follows:
1. Facilitate preservation and prevent deterioration
Spoiled food does great harm to people's health, so the use of preservatives can prolong the shelf life of food, prevent food oxidation or deterioration, and is conducive to
food preservation.
2. Improve the sensory shape of food
Appropriate addition of food additives to improve the color, aroma and taste of food to meet the different needs of people
3. Maintain or improve the nutritional value of food
In the process of food processing, the appropriate addition of some food nutritional fortifier in the range of natural nutrition to improve the nutritional value of food is also
of great significance to improve people's health.
4. Increase the variety and convenience of food
Most of the food on the market has added food additives, a variety of varieties, to bring some convenience to people's life.
5. It is beneficial to food processing and adapts to mechanization and automation of production.
The addition of food additives to food is beneficial to the processing of food.
6. Meet other special needs
When diabetics can't eat sugar, we can add non-nutritious sweeteners or low-calorie sweeteners to make sugar-free foods.

Harmfulness
1、It's carcinogenic. Adding additives such as artificial sweeteners and pigments to foods can lead to cancer.
2、Causing food poisoning. The raw materials used in some food additives are not clean, causing some pollution, resulting in changes in food, the production of toxic substances,
 and then causing food poisoning, chronic poisoning and acute poisoning.
3、The harm to the body caused by the transformation of the products of food in the body. Nitrite, for example, is converted into nitrosamines in the body, which has harmful
effects on the human body. Of course, there are many food additives in the body will occur product conversion problems and cause harm to the body.

Safe dosage of food additives: the dosage of food additives without any toxic or adverse effects on health is expressed in terms of (mg) per kilogram of daily intake, that is,
mg/kg.

In our understanding of food additives, there is a misunderstanding that natural food additives are safer than synthetic ones, but they are not. Although the current detection
methods and contents are limited, according to the current test results, the toxicity of natural food additives is not smaller than that of synthetic, and the price of natural food
additives is on the high side. therefore, green food processing enterprises can innovate the production process accordingly and constantly improve the use level of food
additives in product processing. Therefore, we should face up to food additives, as long as food additives in the safe dosage range, or there are no toxic additives, can ensure
safety.

FEED ADDITIVES
Feed additive refers to a small amount or a small amount of substance added in the process of feed production, processing and use. Feed additive is the necessary raw
material for modern feed industry, which is used for animal nutrition products. Its purpose is to improve feed quality and the quality of food from animal sources, save feed
cost, improve the performance and health of animals, for example, improve the digestibility of feed raw materials.

According to their functions and properties, feed additives are divided into
1.Technical additive: any substance added to feed for technical purposes;
2.Sensory additives: any substance added to the feed can improve or change the sensory properties of the feed or the visual properties of the food of animal origin;
3.Nutritional additive;
4.Animal technical additive: any additive used to adversely affect the health of animals or to benefit the environment
5.Anticoagulants and tissue bacteriotics.

However, there are the following problems in the production and use of feed additives.
1.Abuse of antibiotics and hormones in feed additives in the early production of feed additives, low doses of antibiotics or sulfonamides were used to prevent diseases or
diarrhea in livestock and poultry. This low dose of antibiotics will destroy the ecological balance between microorganisms (including pathogenic microorganisms) in the natural
environment; there are residues in food, which will seriously affect the treatment of human diseases and human heredity.
Therefore, the United Kingdom, the United States, Japan and other countries have clearly stipulated that some antibiotics can not be used in feed additives, such as penicillin,
streptomycin, oxytetracycline, lincomycin, neomycin dry and wet trough, etc., can only use some high safety, and do not share with human medicine and clinical use of
livestock and poultry special antibiotics. Some hormones, such as estrogen, androgen, etc. And you're not allowed to use it.
2.The trace elements commonly used in feed additives are iron, copper, manganese, zinc, iodine, selenium and so on. After entering the human body, these elements exist in
the state of ions, molecules or compounds with complex structure, and the biochemical effects are different in different states. Too little can lead to deficiency, and too much
can cause poisoning or imbalance. Therefore, the content must be appropriate, and mixed evenly, otherwise it will have the opposite effect.
3.Exaggerating the effect of feed additive on balanced diet and promoting the production and growth of livestock and poultry is positive. Generally speaking, the yield of the
control group was 5%-25% higher than that of the control group without additives. However, some products in advertising, exaggerate its role, these unrealistic publicity,
should arouse vigilance

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