2015年10月29日星期四

Types of food additives and the safety


Actually we are no stranger to types of food additives, as the use of food additives are everywhere in our daily life. Such as emulsifiers in instant noodles to improve the dough's water absorption; thickeners and flavor in ham can make the ham more tender; and the most familiar and the most common additive is salt. Who will want food with no taste? If there is no food additives, there won't be so many variety and assortment food; If there is no food additives, food cannot be properly made or saved. Food additives adjust our lives and is an indispensable part of our lives.

What are food additives? How they are used in food? Here are some introduction about common food additives:

Pigments, spices, bleach, flavor enhancer, sweetener added to improve the quality;
Antioxidants and preservatives prevent food spoilage;

Defoamers, stabilizers and emulsifiers are convenient for food processing;

Vitamins, amino acids, minerals and other nutrients Enhancer can increase the nutritional value of food.

Food additives are believed to be the main culprit of food events. According to the definition from Wikipedia, food additives are substances added to food to preserve flavor or enhance its taste and appearance. Although food additives bring us convenience, but food additives added to foods in very small doses, generally controlled between 0.1~0.019/kg. Proper use of food additive is harmless to human body.

In order to ensure the safety of food additives, the use of food additives should be guided by the following principles:

1. After provision evaluation in food toxicology and safety, they are harmless to human body for long-term during using limitation.

2. Does not affect the sensory properties and flavor of food, and food nutrients should not be destroyed.

3. Food additives should have strict quality standards, their harmful impurities are not more than allowed limitation.

4. The processing and sanitary requirements should not be reduced due to the use of food additives.

5. Food additives shall not be used to cover up defects of food or as a means of forging.



Chemicals and additives should be strictly regulated, normal use additives of food company should not be sources of security hazards. To ensure the safe use of food additives, in addition to strict government control, the enterprise's social responsibility and conscience should also be strengthened. In the future, a number of new food additives may be studied to alternative the present food additives. Above all, all of these measures are took to make sure the food safety.

2015年10月27日星期二

Food Additives And Citric Acid


A glass of lemon juice makes you happy all the day! Like the song of Lemon Tree, it leaves people fresh feeling. Lemon is rich in citric acid and is known as the "warehouse of citric acid. the main nutrients of lemon has sugars, as well as calcium, phosphorus, iron and vitamin a, vitamin B1, vitamin B2, vitamin c, niacin, etc.

Citric acid belongs to acidity regulators, and it is popular among many kinds of beverages. Citric acid can be extracted from lemons, oranges, apples and other high citric acid content fruits. Extracted by this method costs more high, it is not conducive to industrial production. Mature fermentation mash mainly has citric acid, it also contains residual sugar, bacteria, proteins, pigments, colloidal substances, inorganic and organic acids, as well as a variety of impurities in raw materials. Extraction ways are calcium salt, extraction and ultrafiltration, electrodialysis method, ion-exchange membrane method. But widespread extraction method is calcium salt ion exchange.

Citric acid is edible acids. People choose it because it enhances normal metabolism and promotes appetite after adding citric acid to certain foods. According to food additives list and its use, acidity regulators especially citric acid is used widely. Some countries allow jam, canned drinks, and candy using citric acid. Citric acid can promote the excretion and deposits of calcium in the body. Appropriate doses is harmless to human body, although citric acid do no harm to human body. But long-term consumption of foods containing citric acid can cause hypocalcemia and increases the chances of risk of 12 duodenum. In order to ensure the food and safety, appropriate doses is necessary.



The suppliers of food additives should record food additive name, specification, quantity, date of production, or production batch number, date, arrival date clearly. Choose reliable suppliers can reduce food safety problems obviously, and qualified suppliers around the world offer health food additives. The illegal use of food additives may cause food safety problems, but this is not what we want. Sometimes, we may make lemon juice at home by ourselves. But, modern food industry is a trend. As a result, the use of food additives is a part of food industry. Many food safety incidents are considered to be related to food additives. In fact, there are two main reasons about food safety problems: one is use beyond the scope, the other is overuse. Normal use of food additives will not endanger the safety.

2015年10月25日星期日

How people understand food additives


Eating health and develop good eating habits are our gateway to the healthy way. And food additives are indispensable ingredients in food processing, all processed foods are mostly have food additives. For example, Cola color is made of the caramel; carbon dioxide plays a preservative effect in pure fermented beer; the cooking oil contains antioxidants; salt contains anti-caking agent and soy sauce, vinegar contain preservatives.

Food additives are widely used in daily life. But plasticizers, melamine, Sudan are not food additives, they are illegal additives. It is often because of lack of knowledge about food additives, then it results in some error understandings between food additives and illegal substances. Here are several common health misunderstandings people may not know:

1. low-fat diet is healthy food

Many foods are touted low-fat, low-sugar or sugar-free, but that does not equate to health. Many sugar-free foods remove their itself sugar during the manufacture process.

2. fresh vegetables are healthier than frozen vegetables

The fresh vegetables that we see in the market are not necessarily the freshly picked vegetables from the vegetable garden. Mostly, they are likely to have a period of storage. So the nutrient content may lower than the quick freezing fresh vegetables.

3. egg yolk increases blood fat

Many people worried about cholesterol in egg yolk increases blood fat, so they do not eat the yolk, but lecithin in egg yolk to a certain extent prevent the deposition of fat and cholesterol in the blood vessel wall.

4. the use of food additives are harmful

Actually as long as it is the prescribed additives and within use amount, it does not harm to human health. While some food if do not add a certain food additives, the flavor and storage are affected.

According to examples of food additives, we can get here are four main uses: to improve the sensory properties of food, to preserve and maintain food, to maintain or enhance the nutritional value of food and to help food processing and production. We do not have to accept or consume every kind of additive, but at least it should be understood. In fact, all food is made of chemicals, whether apples or carrots. Therefore, it is an irresponsible attitude to identify all chemicals that are harmful and frightening.



During the process of food, some manufacturers may add some food additives to the products. Many manufacturers may use food additives beyond the scope. Even many manufacturers add industrial additives to the food. That belongs to the non-edible substances and is illegal. Therefore, choose qualified suppliers is a guarantee to consumers.

2015年10月22日星期四

How can use food additives in a right way?


When it refers to food and safety, it is unavoidable to think about food additives. Food safety is related to the health of our body. Food involves substandard and illegal additives are the result of irresponsible business. Therefore, strict supervision by regulators is necessary, and the illegal business who produce substandard food must not be tolerated. Improve relevant laws and regulations, manage distribution channels for food additives and scrutiny the substandard food are the measures that should be taken. In order to get consumers to eat at ease and ensure the safety of consumers, the maximum limits use of food additives and daily intake also should be clear.

The man-made chemical agents Sudan are familiar to most people. Human stem-cell research shows that it has potential carcinogenic properties, most States prohibit their use for food production. But Sudan is not food additives, it is the illegal additive. So, how should we treat about the food safety?

According to read food labels, people can understand some ingredients such as water, sugar, etc. But some professional terms such as gelatin or maltodextrin are not widely understood. Such as maltodextrin. It is produced from starch by partial hydrolysis and used as a food additive. Maltodextrin is easier to digest than starch molecule, so it has some benefits for postoperative patients who are with poor digestion if added to their foods. Many manufacturers add it to paste powder sugar-free foods, but maltodextrin raise blood sugar very quickly and is not suitable for diabetics and dieters to eat.

At present, there are 1500 types of food additives of international standard. There are three main issues as to the use of food additives: illegal use, beyond the scope of use and excessive use. The use of them is aims to improve food quality and color, flavor and taste, and the need for the preservation and processing.



According to the example of food additives,food preservatives is one of the most widely used food additives. If foods without preservatives, a large number of bacteria breeding can easily lead to its deterioration. This will not only cause waste, but also easy to cause food poisoning, all kinds of gastrointestinal diseases, and even lead to death. Even it is the standard variety, it has a strict limit to its use and the scope. Food preservatives in the purpose is to ensure food safety. Do not worry about it will hurt the body as long as it is in strict accordance with the implementation. Choose reliable and standard food additives suppliers that can make you eat at ease.

2015年10月20日星期二

How to guarantee the food and safety?


Food additives are the backbone of food industry, additives make food can be stored longer and have better taste. They are convenient for food make and cut cost. These advantages make manufacturers prefer them in food industry. but it is also a main cause of excessive use of some food additives. Meanwhile, food additives have been accused of food safety incidents. What are food additives? How should we treat food additives?

From the food additives list, here are types of food additives. Such as thickeners, sweeteners, flavour enhancers, enzymes, bleaching agents, anticaking agents, acidity regulators, preservatives, antioxidants, nutrition enhancer and so on. Food additives by sources can be divided into three categories in international: natural extract, material such as citric acid prepared by the fermentation method and pure chemical compounds. They play different roles in additive manufacturing. The reason why so many people have bad impression of additives is that the illegal added to food things are mixed with food additives. The misconception of the two lead to a series of misunderstanding. A food additive is a proper noun, it refers to substances that permitted add to food by countries.

Due to the security problems of edible synthesized coloring matter, many countries gradually reduce the number of actual use of the varieties recently. But the security of universal use varieties is very good. Edible pigment from natural materials, they mostly are edible resource. They are the organic colorants processed by certain method. They are mainly extracted from plant tissue, as well as some pigments from animals and micro-organisms. But their stability and content are not as good as synthetic ones. From the point of view, people believe security is higher than synthetic pigments, especially the natural pigment from the fruits, vegetables and other foods.

The use of food additives is an ability of modern technology for food processing, rather than the roots of good and evil. Part of food additives have a certain toxicity. Therefore, in the process of making food, food additives must be used in accordance with the national standards and maximum use to regulate its use. The use of food additives is to improve food quality, ensure food safety and promote food innovation. Media should establish a platform for communication between experts and the public, and spread correct knowledge of food additives to the public widely. It is safe for the human body if not abused. For food manufacturing, choose reliable manufacturers or suppliers of food company is a guarantee to the food safety.

2015年10月19日星期一

What can emulsifiers in food do?


What will happen if pour water and oil together into a cup? After a while, there will be two layers: one layer is water, and the other layer is oil. There is a clear divide between them. Even if you try your best to stir and mix again they will be layered after a while. Why? Because both substances are hard to merging and blending. At this time, add a few drops of emulsifying agents into the glass, you will find two immiscible liquids mixed together slowly, forming a homogeneous emulsion.

Emulsifiers in food is widespread in the processing of foods. Food usually contains water, protein, fat, sugars and other components of mixed materials, this has a lot of material that is not "inclusive". For example, if the oil and water can not be fused, the appearance and taste of ice creams will not be good. Milk, in fact, is a typical "emulsion" foods, which contain water and milk. These two substances do not blend with each other, but water and milk form the milk fat structure surrounded by water molecules in coordination with the milk protein. Here milk protein plays an emulsifier role.

There are many reports say food additives contribute to obesity, this completely distorts the findings of the study. It is an overstating result that eat too much may lead to obesity and diabetes. If eat too much ice cream cause obesity, it's not just because of the emulsifier, but due to sugar and fat.

Emulsifying agents have functions of the emulsification in the processes of a variety of materials, as well as improve and enhance food quality and stability. Application of emulsifier in baking food is also very widespread. During the dough mixing, emulsifiers can strengthen the dough on the endurance of mechanical processing, improve flexibility, toughness, strength and mixing the dough, reduce the dough damage and improve the dough's water absorption rate. At the dough fermentation stage, emulsifiers can improve the fermentation capacity of dough, the dough will form a thin film on the surface and is very easy to collapse, emulsifiers can improve dough fermentation tolerance and prevent distortion. Meanwhile, emulsifiers can prevent the bread staling. The bread hardens in a few days, the reason is starch retrogradation. Emulsifier is an ideal bread preservative and antioxidant. In the production of bread, emulsifiers can prevent the starch grains from aging, so that the taste can be improved.

At present, there are about 70 kinds of universal emulsifier, and international authorities assessed that the emulsifier is safe, most of them have no limitation to the daily tolerable intake. As a result, it can be considered that the allowed to use food emulsifiers are relatively safe, so reasonable use is not harmful to health.

2015年10月16日星期五

How to deal with bleaching agents ?


Sulfites can be metabolized into Kraft in the body, and it can be discharged from the urine through the detoxification process. Sulfites as a compound does not apply to animal products, because it may cause unpleasant odors. Sulfites have a destructive effect on vitamin B1, so it does not apply to the foods that contain too many vitamin B1, such as meat, grains, dairy products and nuts. The purpose is to avoid allergic reactions. Because of the strong reduction, sulfite can consume oxygen in the fruit and vegetable and prevents vitamin c in fruits and vegetables to be destroyed by oxidation.

There are many reductive bleaching agents in food bleaching agents. Main category is sulfurous acid and its salts, including sulphur dioxide, sodium metabisulfite, sodium hydrogen sulfite, sulfur and so on. These reductive bleaching covers almost all aspects food bleach application, so the impact on people's daily lives is great as well.

Sulphurous acid and its salts fade the fruits and vegetables mainly through the reduction of sulfur dioxide, therefore it is widely used in food bleaching and preservation. because these substances have a certain toxicity, so it is harmful to human health if the use and their residues cannot controlled strictly.

Need to be reminded that do not be cheated by the food color and taste. In fact, it is likely to use the excessive food additives if the color is too bright, the taste is too heavy or the aroma is obvious. Because of the wide range applications of food bleaching, so there are many bleached food in life. And consumers deal with these food in the kitchen or supermarket is inevitable. So, are there any test methods for bleached food? Bleaching agents are designed to produce sulphur dioxide. So this kind of food can detect out sulfur dioxide. Due to excessive industrial raw materials of bleaching, it can not be used to exam all the time.

How to eat health and avoid excessive additives in food? Eat more vitamins c and e and another antioxidant fruits and vegetables! Vegetables and citrus fruits are rich in vitamins c and e and antioxidant. It can effectively make nitrite to be destroyed rapidly in the stomach, blocking carcinogens of synthesis nitrosamine. By the way, nitrite-containing foods can not eat together with lactic acid drinks! These increases the concentration of nitrite in the gastrointestinal tract, then it produces nitrosamines to cause toxicity.