Health effects of benzoic acid, sodium benzoate, and benzene. The name is derived from gum benzoin, which was for a long time its only source. Sodium benzoate is a common preservative in acid or acidified foods such as fruit juices, syrups, jams and jellies, sauerkraut, pickles, preserves, fruit cocktails, etc. The bacteriostatic action of benzoic and salicylic acids. Simultaneous determination of preservatives in dairy. The major weak organic acid food preservatives include benzoic, acetic, sorbic, and propionic acids. Benzoic acid e210 or ins210, table 2, a colorless aromatic carboxylic acid fig. Sugar and salt are the earliest natural food preservatives that very efficiently drop the growth of bacteria in food. Nov 14, 2003 benzoic acid is cytocidal under nitrogen starvation conditions. Because benzoic acid is toxic, the amount of benzoates that can be added to foods is carefully controlled. Benzoic acid is a more effective germ killer, however. Exposure assessment of food preservatives sulphites, benzoic. Jorge, in encyclopedia of food sciences and nutrition second edition, 2003. Evaluation of antibacterial activities of some chemical.
Abstract the extraction and preservation of cashew juice using sorbic and benzoic acid was carried to determine a more method for preserving cashew juice under a period of one. Boards are chosen according to the range of expertise required for a meeting and the need for balanced geographic representation. Sodium benzoate is a substance which has the chemical formula c 6 h 5 coona. Benzoic acid is a derivative of benzene, also known as sodium benzoate or the salt of benzoic acid. Sodium benzoate is best known as a food preservative, though it has several other uses. It does not stop lactic acid and acetic acid fermentation. Benzoic acid, in the form of sodium benzoate, is a widely used food preservative suitable for acid foods. Coffee powder and soup are dehydrated and freezedried for preservation. Bacillus subtilis cannot survive in benzoic acid solution in the presence of co 2. Note that the pagination and layout of this pdf file are not identical to those of the printed. Mar 26, 2020 sodium benzoate is structurally related to benzoic acid and has the formula c 6 h 5 coona. D,dav college amritsarindia abstract every living organism needs food to live. Benzoic acid is a compound comprising a benzene ring core carrying a carboxylic acid substituent. Antioxidants are compounds that delay or prevent the deterioration of foods by oxidative mechanisms.
Their use as preservatives in food, beverages, toothpastes, mouthwashes, dentifrices, cos metics, and pharmaceuticals is regulated. Also, during the process of food preservation, the food. Benzoic acid is primarily used as an antifungal agent in fruit based and fruit beverages, fruit products, bakery products and margarine. Fruit and vegetable processing home food and agriculture. Determination of benzoic acid, sorbic acid, and methyl. Cashew juice was produced and preserved by five different methods viz untreated control as sample a1.
These additives, applied in order to maintain food quality and prolong storage time, often make consumers anxious about its safety. Food preservatives and their harmful effects dr sanjay sharma ph. Exposure assessment of food preservatives sulphites. It is a widely used food preservative, with an e number of e211. Benzoic acid c7h6o2 or c6h5cooh, is a colorless crystalline solid and a simple aromatic carboxylic acid salts of benzoic acid are used as food preservatives and benzoic acid is an important precursor for the industrial synthesis of many other or. It occurs naturally in cranberries, raspberries, plums, prunes, cinnamon and cloves. Other names for benzoic acid include benzenemethanoic acid or carboxybenzene. There have been several reports on the efficacy of using chemicals to control the growth of food borne pathogens. The extraction and preservation of cashew juice using sorbic and benzoic acid was carried to determine a more method for preserving cashew juice under a period of one month. Benzoic acid is more effective against yeasts than against moulds. Pdf sorbic and benzoic acid in nonpreservativeadded food. In addition to its use as a food additive, manufacturers use benzoic acid in the production of artificial flavors, fragrances and as a ph adjuster. Lecture 5 chemical preservation of food linkedin slideshare.
Benzoic acid, a white, crystalline organic compound belonging to the family of carboxylic acids, widely used as a food preservative and in the manufacture of various cosmetics, dyes, plastics, and insect repellents first described in the 16th century, benzoic acid exists in many plants. Benzoic acid and sodium benzoate are used as food preservatives and are most suitable for foods, fruit juices, and soft drinks that are naturally in an acidic ph range. There have been several reports on the efficacy of using chemicals to control the growth of foodborne pathogens. The data suggest that the synergism between nitrogen starvation and benzoic acid is the result of inhibition of macroautophagy by benzoic acid and that a mechanistic understanding of this inhibition should be beneficial in the development of novel food preservation technologies. These nutrients present in food are ingested and assimilated by an organism to produce energy, stimulate growth. Though benzoic acid is used in cosmetics, dyes, plastics and insect repellents, it is most commonly included in food products as a preservative. Codex alimentarius, an international treaty dictating food safety standards, limits the amount of benzoic acid or sodium benzoate to 0. Benzoic acid benzoic acid in the form of its sodium salt, constitutes one of the most common chemical food preservative. Evaluation of antibacterial activities of some chemical food.
In this study, we developed a method to detect these preservatives. To preserve meat and fish, salt is still used as a natural food preservative. Fruit and vegetable processing food and agriculture. This article provides a detailed overview of sodium benzoate, including its uses and possible safety concerns. There are many traditional processes where acid is used to preserve foods as opposed to actual preservatives. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. Food addit contam part a chem anal control expo risk assess.
First described in the 16th century, benzoic acid exists in many plants. E210 benzoic acid powder, food preservative benzoic acid. Microbial spoilage of food causes losses of up to 40% of all food grown for human consumption worldwide. Chemical food preservatives are widely used in the food industry and are invariably cheap ingredients that are effective against a wide range of spoilage organisms. The effect of some commonly used chemical preservatives benzoic acid, sodium benzoate and sodium sulfite on the shelflife of sobo drink was investigated by isolation of. Determination of the effects of food preservatives benzoic acid and. Majority of food products available on the market contain different types of additives, among which preservatives are playing an important role. The analyses of these preservatives in 100 different food products were. It seems to harm microbes by preventing them from fermenting glucose, but it may have other effects on the microbes as well. It may be found in acidic foods and beverages such as fruit juices, soft drinks. The efficacy of benzoic acid is thus dependent on the concentration of the benzoic acid. The preservation of the juice was carried out using sugar, benzoic acid, citric and a combination of citric and benzoic acid under room temperature. Acidic food and beverage like fruit juice citric acid, sparkling drinks carbon dioxide, soft drinks phosphoric acid, pickles or other acidified food are preserved with benzoic acid and benzoates.
Jun 01, 2012 if anybody is interested, the chemical formula of benzoic acid is c 6 h 5 cooh. Foods have many nutrients such as carbohydrates, fats, proteins, vitamins, or minerals. The use of food preservatives, such as benzoic acid, nitrites, and sulphites, as antimicrobials, and butylated hydroxyanisole bha, butylated hydroxytoluene bht, ascorbic acid and tocopherols, as antioxidants, has probably changed food production patterns and eating habits more than has the use of any other class of food additive. Pdf benzoic acid, a weak organic acid food preservative, exerts. Food preservatives are classified into two main groups. Production and preservation of passion fruit juice was examined to reduce the spoilage and to increase the shelf life of the juice using chemical preservatives. The earliest mention of benzoic acid appears from the 16th century.
They are selected because of their expertise in human and environmental toxicology or because of their experience in the regulation of chemicals. It has a role as an antimicrobial food preservative, an ec 3. Benzoic acid is often used in combination with sorbic acid. The major preservatives in dairy products are sodium benzoate, potassium sorbate, and natamycin. Add approximately 50 ml 70% ethanol to dissolve, and dilute to volume with 70% ethanol. Benzoic acid is the oldest and most widely used preservative. Sodium benzoate, also called benzoic acid, is used in acidic foods to keep microorganisms from growing.
The acid is a preservative and examples of foods that contain high amounts of this salt include sauces and pickles. Simultaneous determination of preservatives in dairy products. Cheese and yogurt are two kinds of nutritious dairy products that are used worldwide. The effect of some commonly used chemical preservatives benzoic acid, sodium benzoate and sodium sulfite on the shelflife of sobo drink was investigated by isolation of microorganisms before. When the ph pka, 50% of the acid is dissociated and 50% of the acid is undissociated. Extraction and preservation of cashew juice using sorbic. Benzoic acid ba is a commonly used antimicrobial preservative in food and beverages, especially in carbonated beverages, as it presents its strongest antibacterial activity at ph2. In this study, we developed a method to detect these preservatives in dairy products. Food preservative an overview sciencedirect topics. Chemical food preservatives include compounds such as sodium benzoate, benzoic acid, nitrites, sulfites, sodium sorbate and potassium sorbate.
Yeasts are inhibited by benzoate to a greater extent than. It can be produced by reacting sodium hydroxide with benzoic acid. Benzoic acid which, unlike the other benzoates, occurs in nature also may be used as the active ingredient itself as a topical antifungal treatment. Presently, the use of protective food additives such as benzoic acid and sodium nitrate is quite common. Benzoic acid uses as a food additive, you can use benzoic acid to preserve different kinds of foods including fruit juices, soft drinks, pickles, barbecue sauces and salad dressings. This study investigated the antibacterial activity of six chemical food preservatives namely benzoic acid, acetic acid, sodium nitrite, ascorbic acid, citric acid and sodium chloride against food associated bacteria isolated from tinned tomatoes, banana and cooked rice. It exists as a granular powder and is more soluble in water than the acid. The substance received its name from gum benzoin, the plant from whose resin it was first derived. Typical levels of use for benzoic acid as a preservative in food are between 0.
Advantages and disadvantages of artificial food preservatives. Extraction and preservation of cashew juice using sorbic and. Benzoic acid, a white, crystalline organic compound belonging to the family of carboxylic acids, widely used as a food preservative and in the manufacture of various cosmetics, dyes, plastics, and insect repellents. If the concentration of the benzoic acid is higher, the shelflife of the food will be increase.
The place of benzoic acid in food preservation vanguard news. Benzoic acid ba is a commonly used antimicrobial preservative in food and beverages, especially in carbonated beverages, as it presents its strongest. Pdf sorbic acid sa and benzoic acid ba were determined in yoghurt, tomato and pepper paste, fruit juices, chocolates, soups and chips in. However, it was found that these additives, which initially. Principles of preservation principles of food preservation a good method of food preservation is one that slows down or prevents altogether the action of the agents of spoilage. Advantages and disadvantages of artificial food preservatives by jessica bruso. It is widely accepted as safe food additive in many countries with e number e210. The mechanism of action of benzoic acid is as an ammonium ion binding activity. Benzoic acid occurs naturally in many plants and serves as an intermediate in the biosynthesis of many secondary metabolites. Cashew juice was produced and preserved by five different methods viz untreated control as sample a 1. Pdf application of organic acids in food preservation.
Lactic acid is not naturally present in foods, but is. Ascorbic acid is a chemical compound c6h8o6 that is commonly found in nature and can be used as an antioxidant food additive. It acts as a vitamer of vitamin c, which means it is a compound that provides the same vitamin activity as vitamin c. May, 2015 extraction and preservation of cashew juice using sorbic and benzoic acids. Main categories of food additives are food colours, flavours and sweeteners, antioxidants, fat emulsifiers, stabilizing agents, flour improvers, food preservatives, nutritional supplements like minerals, vitamins, amino acids. Benzoic acid and its salts such as potassium benzoate and sodium benzoate are widely used as preservatives for acidic food and beverage. Sodium benzoate is structurally related to benzoic acid and has the formula c 6 h 5 coona. Artificial benzoic acid is added to food and to products such as toothpastes, shampoos, carbonated drink. Pdf microbial spoilage of food causes losses of up to 40% of all food grown for human consumption worldwide. Yeast growth is a major factor in the spoilage of foods and beverages that are characterized by a high sugar content, low ph, and low water activity, and it is a significant economic problem.
The effectiveness of benzoic acid and its salts depends on the acidity ph of the food. Apr 01, 2017 benzoic acid is most effective as a food preservative in acidic food. In sensitive individuals, it can cause asthma, hives and other allergic. Benzoic acid is a growthretarding agent which does not normally cause cell death in yeast at the concentrations used in our experiments and in most food preservation applications. Benzoic acid, a weak organic acid food preservative.
Antimicrobial agents inhibit the growth of spoilage and pathogenic microorganisms in food. Influence of amino acids and related substances on the growth inhibition. Health effects of benzoic acid, sodium benzoate, and. Levels of benzoic and sorbic acid preservatives in. The mechanism starts with the absorption of benzoic acid in to the cell. Most foods are allowed no more than 1,000 mg per kilogram. In order to avoid complications with the specification of the amount of preservative in a food, this is usually referred to as the weightforweight concentration of the undissociated acid, e.
Exposure assessment of food preservatives sulphites, benzoic and sorbic acid in austria. Sodium benzoate is more commonly used as a food preservative than benzoic acid due to its greater solubility in water. Benzoic acid is often used in combination with sorbic acid at levels of 0. Yeast spoilage of foods and beverages that are characterized. When ph is lower than pka, the majority is in undissociated form. Determination of benzoic acid, sorbic acid, and methyl, ethyl. Nitrite and nitrate levels are expressed in terms of the weight of the sodium salt. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Benzoic acid, a weak organic acid food preservative, exerts. Chemical food preservatives include compounds such as sodium benzoate, benzoic acid.
The maximum permitted levels for these additives in cheese and yogurt are established according to iranian national standards. Acetic acid in the form of vinegar for pickling is most common, citric acid, lactic acid fro. Benzoic acid is cytocidal under nitrogen starvation conditions. Benzoic acid or benzenecarbonicacid is a monobasic aromatic acid. In addition to its use as a food additive, manufacturers use benzoic acid in the production of artificial flavors, fragrances and. Benzoic acid is most effective as a food preservative in acidic food. This study investigated the antibacterial activity of six chemical food preservatives namely benzoic acid, acetic acid, sodium nitrite, ascorbic acid, citric acid and sodium chloride against food associated bacteria isolated from tinned tomatoes, banana and.
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