{"id":25529489,"date":"2022-06-23T09:26:05","date_gmt":"2022-06-23T03:56:05","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=25529489"},"modified":"2022-06-23T11:16:26","modified_gmt":"2022-06-23T05:46:26","slug":"principles-and-methods-of-food-preservation","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/","title":{"rendered":"Principles And Methods Of Food Preservation"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69df9b8b90c10\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69df9b8b90c10\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#What_Is_Food_Preservation\" >What Is Food Preservation ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#Principles_of_Food_Preservation\" >Principles of Food Preservation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#Food_Preservation_Methods\" >Food Preservation Methods<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#Importance_Of_Food_Preservation\" >Importance Of Food Preservation<\/a><\/li><\/ul><\/nav><\/div>\n<p>Food is a source of energy for all of us. Unhealthy or spoiled food is the major cause of diseases in humans. This is known as food poisoning. To prevent this the food needs to be preserved in a variety of ways.\u00a0Preservation usually involves preventing the growth of bacteria, fungi, and other micro-organisms, as well as retarding the oxidation of fats which cause unpleasant smell of food. It also includes processes to inhibit natural ageing and discoloration that can occur during food preparation such as the enzymatic browning reaction in apples after they are cut. Preservative for food may be defined as any chemical compound and\/or process, when applied to food, retard alterations caused by the growth of microorganisms or enable the physical properties,<br \/>\nchemical composition and nutritive value to remain unaffected by microbial growth. The main aim of food preservation is to prevent contamination and spoilage of food.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/https:\/\/entri.sng.link\/Bcofz\/yv45\/8wer\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-25524707 size-full\" src=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1.png\" alt=\"\" width=\"345\" height=\"345\" srcset=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1.png 345w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1-300x300.png 300w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1-150x150.png 150w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1-24x24.png 24w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1-48x48.png 48w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1-96x96.png 96w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner1-1-75x75.png 75w\" sizes=\"auto, (max-width: 345px) 100vw, 345px\" \/><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Food_Preservation\"><\/span><strong>What Is Food Preservation ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It is the technique to prevent food spoilage, food poisoning, and microbial contamination in food, thus allowing it to be stored in a fit condition for future use. It can also be defined as the state in which any food may be retained over a period of time without\u00a0 being contaminated by pathogenic organisms or chemicals , losing optimum qualities of colour, texture, flavor and nutritive value.<\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Principles_of_Food_Preservation\"><\/span><b>Principles of Food Preservation<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The principles of various methods of food preservation are as follows :<\/p>\n<p><strong>1. Prevention or delay of microbial decomposition<\/strong><\/p>\n<ul>\n<li>By keeping out microorganisms ( asepsis )<\/li>\n<li>By removal of microorganisms ( filtration )<\/li>\n<li>By hindering the growth and activity of microorganisms ( by low temperature, drying, anaerobic conditions or chemicals )<\/li>\n<li>By killing the microorganisms ( by heating or applying radiation )<\/li>\n<\/ul>\n<p><strong>2. Prevention or delay of self decomposition of food<\/strong><\/p>\n<ul>\n<li>By destruction or inactivation of food enzymes ( by blanching )<\/li>\n<li>By prevention or delay of chemical reactions ( by using antioxidants )<\/li>\n<\/ul>\n<p><strong>3. Prevention of damage caused by insects, animals and mechanical causes.<\/strong><\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/entri.sng.link\/Bcofz\/yv45\/8wer\" target=\"_blank\" rel=\"noopener\"><strong>Attempt Free GK Mock Test &#8211; Download ENTRI App !<\/strong><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Food_Preservation_Methods\"><\/span><strong>Food Preservation Methods<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><strong>Preservation By Dehydration<\/strong><\/h3>\n<h4><strong>Drying<\/strong><\/h4>\n<p>Drying food means the application of heat under controlled conditions to remove majority of water normally present in food by evaporation. It reduces water activity sufficiently to prevent or delay microbial growth. It is one of the earliest form of food preservation used by our ancestors<\/p>\n<p>Freeze drying is another method of drying. It is a method of food preservation that makes the use of physical principle known as sublimation. Sublimation is the process by which a solid passes directly to the gaseous phase without melting. The food to be preserved by this method is first frozen and then placed into a vaccum chamber. Water in the food freezes first and sublimes, leaving water content in the food as low as 0.5%.<\/p>\n<h3><strong>Preservation By High Osmotic Pressure<\/strong><\/h3>\n<ul>\n<li>\n<h4><strong>Salting And Pickling<\/strong><\/h4>\n<\/li>\n<\/ul>\n<p><strong>Salting<\/strong><\/p>\n<p>Adding salt to the food even at 20% of its concentration disturb the osmotic balance of microbial cells as a result they die. Salting is also called curing as it removes the moisture content from foods like meat.<\/p>\n<p><strong>Pickling<\/strong><\/p>\n<p>It means preserving the food product in brine ( salt solution ) or marinating in vinegar ( acetic acid ). In chemical pickling we add brine, vinegar ,alcohol and vegetable oil. These chemicals kills the various microorganisms there by increasing the shelf life of the food. In fermentation pickling, bacteria produce organic acids which act as a preserving agents.<\/p>\n<ul>\n<li>\n<h4><strong>Sugaring<\/strong><\/h4>\n<\/li>\n<\/ul>\n<p>Sugar have a tendency to absorb water from microbial cells and leaving them dehydrated. These dehydarted microbial cells thus die as water is necessary for every living thing to survive.<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/bit.ly\/3MWTnuS\" target=\"_blank\" rel=\"noopener\"><strong>Grab The Latest GK Study Materials &#8211;\u00a0 Register Here!<\/strong><\/a><\/p>\n<h3><strong>Preservation By High Temperature<\/strong><\/h3>\n<ul>\n<li>\n<h4><strong>Pasteurization<\/strong><\/h4>\n<\/li>\n<\/ul>\n<p>It is a process applied to a food product with the objective of minimizing possible health hazards arising from pathogenic microorganisms associated with the product mainly milk products which is consistent with minimal chemical, physical and organoleptic changes in the product. It is also applicable to other products like cream, eggs, fruit juices, fermented products, soups and other beverages. Pasteurization is usually done for milk products. Nowadays three methods are used for pasteurization. They are :<\/p>\n<p><b>Holding or Batch system (Holder method) &#8211; <\/b>bringing the milk or cream to a temperature usually 65 o C and holding at that point for at least 30 minutes followed by rapid cooling.<\/p>\n<p><b>High Temperature Short Time Method (HTST) (Flash method) &#8211; <\/b>In this method temperature of the milk is raised to at least 72 o C for 15 seconds followed by quick cooling.<\/p>\n<p><b>\u00a0Ultra High Temperature System (UHTS) &#8211; <\/b>In this method milk is held for 3 seconds at 93.4 o C. After pasteurization the milk is cooled rapidly to 7 o C or lower.<\/p>\n<ul>\n<li>\n<h4><strong>Canning<\/strong><\/h4>\n<\/li>\n<\/ul>\n<p>It is a method of food preservation in which the food products are sealed in containers which applies heat treatment for the prevention of spoilage. In conventional canning, food product is placed inside the container, air is removed by vaccum cans are hermetically sealed. The cans are then sterilized with steam.<\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/bit.ly\/3MWTnuS\" target=\"_blank\" rel=\"noopener\">Attempt\u00a0 Free Current Affairs Tests &#8211;\u00a0 Register Here!<\/a><\/strong><\/p>\n<h3><strong>Preservation Using Preservatives<\/strong><\/h3>\n<p>Preservatives can be classified into two types, class I preservatives and class II preservatives. Class I preservatives are salt, sugar spices, vinegar, honey and edible vegetable oils. Class II preservatives are benzoic acid and its sodium and potassium salts, sorbic acid and its sodium and potassium salts. The preservatives used in fruits and vegetables are again classified into organic and inorganic preservatives.\u00a0 The organic preservatives are benzoic acid, chlorobenzoic acid or salicylic acid. Sulphur-di-oxide is the only permitted inorganic preservative\u00a0 which is generally used in the form of sulphites. The preservatives permitted in fruit and vegetable products in India are sodium benzoate, sulphites and sorbic acid. Sulphur-di-oxide, sulphites and metabisulphites are used in confectionary, fruits and fruit juices and wines. Sodium or potassium metabisulphites are used in the preservation of fruit products. Sodium benzoate is used as a preservative in grape crushes and tomato ketchup.<\/p>\n<h3><b>Food Irradiation\u00a0<\/b><\/h3>\n<p>In this method of food preservation food is exposed to ionizing energy &#8211; \u00a0radio isotope cobalt &#8211; 60. Food irradiation are mainly used :<\/p>\n<ul>\n<li>To avoid harmful chemicals compounds like methyl bromide and ethylene oxide for insect disinfestation in stored products and microbial decontamination of spices.<\/li>\n<li>To extend shelf life of meat, poultry and sea foods by killing microorganisms causing their spoilage.<\/li>\n<li>To enhance safety of food by killing food borne pathogenic microorganism and parasites.<\/li>\n<\/ul>\n<p>Irradiated foods does not change the flavor, taste, smell, texture and mineral contents of foods and they are safe for human consumption.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Importance_Of_Food_Preservation\"><\/span><strong>Importance Of Food Preservation<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Increases the shelf life of food products, so many perishable foods can be preserved for long time.<\/li>\n<li>Decreasing wastage of food by preventing decay or spoilage of food.<\/li>\n<li>\u00a0As the food has already been partially processed, it reduces the preparation time and energy.<\/li>\n<li>Stabilizing prices of food, as there is less scope of shortage of supply to demand.<\/li>\n<li>\u00a0Preserved foods help people to bring a variety in the diet, thereby decreasing dietary deficiencies.<\/li>\n<li>Seasonal foods are available throughout the year.<\/li>\n<li>Expands the supply of food.<\/li>\n<\/ul>\n<p><a href=\"http:\/\/https:\/\/entri.sng.link\/Bcofz\/yv45\/8wer\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-25524734 size-full\" src=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner-1-1-1.png\" alt=\"\" width=\"970\" height=\"250\" srcset=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner-1-1-1.png 970w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner-1-1-1-300x77.png 300w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner-1-1-1-768x198.png 768w, https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/05\/blog-banner-1-1-1-750x193.png 750w\" sizes=\"auto, (max-width: 970px) 100vw, 970px\" \/><\/a><\/p>\n<p>Learn with\u00a0<a href=\"https:\/\/entri.sng.link\/Bcofz\/0x3b\/ow4f\" target=\"_blank\" rel=\"noopener\">Entri<\/a> app and start your exam preparations. <a href=\"https:\/\/entri.sng.link\/Bcofz\/0x3b\/ow4f\" target=\"_blank\" rel=\"noopener\">Entri<\/a> provides study materials for different competitive exams, daily quizzes, free mock tests, live video classes, doubt clearing sessions, articles on current affairs, English vocabulary, etc. Download free, study and crack the exams with good scores. Our team of experts offer short and precise video classes which assists you in learning the concepts. Users get access to flash cards and quizzes and can attempt unlimited mock exams with the same pattern as that of the real exams. We also provide PDFs of previous years\u2019 question papers with solutions. <a href=\"https:\/\/entri.sng.link\/Bcofz\/0x3b\/ow4f\" target=\"_blank\" rel=\"noopener\">Entri<\/a>\u00a0wishes good luck to all aspirants.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Food is a source of energy for all of us. Unhealthy or spoiled food is the major cause of diseases in humans. This is known as food poisoning. To prevent this the food needs to be preserved in a variety of ways.\u00a0Preservation usually involves preventing the growth of bacteria, fungi, and other micro-organisms, as well [&hellip;]<\/p>\n","protected":false},"author":116,"featured_media":25529492,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,558],"tags":[],"class_list":["post-25529489","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-general-knowledge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Principles And Methods Of Food Preservation - Entri Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Principles And Methods Of Food Preservation - Entri Blog\" \/>\n<meta property=\"og:description\" content=\"Food is a source of energy for all of us. Unhealthy or spoiled food is the major cause of diseases in humans. This is known as food poisoning. To prevent this the food needs to be preserved in a variety of ways.\u00a0Preservation usually involves preventing the growth of bacteria, fungi, and other micro-organisms, as well [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\" \/>\n<meta property=\"og:site_name\" content=\"Entri Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/entri.me\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-06-23T03:56:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-06-23T05:46:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png\" \/>\n\t<meta property=\"og:image:width\" content=\"820\" \/>\n\t<meta property=\"og:image:height\" content=\"615\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Zubaida Naheeda\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@entri_app\" \/>\n<meta name=\"twitter:site\" content=\"@entri_app\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Zubaida Naheeda\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\"},\"author\":{\"name\":\"Zubaida Naheeda\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/person\/57cc17a9be1cbae603693210c714d289\"},\"headline\":\"Principles And Methods Of Food Preservation\",\"datePublished\":\"2022-06-23T03:56:05+00:00\",\"dateModified\":\"2022-06-23T05:46:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\"},\"wordCount\":1268,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/entri.app\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png\",\"articleSection\":[\"Articles\",\"General Knowledge\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\",\"url\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\",\"name\":\"Principles And Methods Of Food Preservation - Entri Blog\",\"isPartOf\":{\"@id\":\"https:\/\/entri.app\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png\",\"datePublished\":\"2022-06-23T03:56:05+00:00\",\"dateModified\":\"2022-06-23T05:46:26+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage\",\"url\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png\",\"contentUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png\",\"width\":820,\"height\":615},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/entri.app\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"General Knowledge\",\"item\":\"https:\/\/entri.app\/blog\/category\/general-knowledge\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Principles And Methods Of Food Preservation\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/entri.app\/blog\/#website\",\"url\":\"https:\/\/entri.app\/blog\/\",\"name\":\"Entri Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/entri.app\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/entri.app\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/entri.app\/blog\/#organization\",\"name\":\"Entri App\",\"url\":\"https:\/\/entri.app\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png\",\"contentUrl\":\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png\",\"width\":989,\"height\":446,\"caption\":\"Entri App\"},\"image\":{\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/entri.me\/\",\"https:\/\/x.com\/entri_app\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/entri.app\/blog\/#\/schema\/person\/57cc17a9be1cbae603693210c714d289\",\"name\":\"Zubaida Naheeda\",\"url\":\"https:\/\/entri.app\/blog\/author\/naida\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Principles And Methods Of Food Preservation - Entri Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/","og_locale":"en_US","og_type":"article","og_title":"Principles And Methods Of Food Preservation - Entri Blog","og_description":"Food is a source of energy for all of us. Unhealthy or spoiled food is the major cause of diseases in humans. This is known as food poisoning. To prevent this the food needs to be preserved in a variety of ways.\u00a0Preservation usually involves preventing the growth of bacteria, fungi, and other micro-organisms, as well [&hellip;]","og_url":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/","og_site_name":"Entri Blog","article_publisher":"https:\/\/www.facebook.com\/entri.me\/","article_published_time":"2022-06-23T03:56:05+00:00","article_modified_time":"2022-06-23T05:46:26+00:00","og_image":[{"width":820,"height":615,"url":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png","type":"image\/png"}],"author":"Zubaida Naheeda","twitter_card":"summary_large_image","twitter_creator":"@entri_app","twitter_site":"@entri_app","twitter_misc":{"Written by":"Zubaida Naheeda","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#article","isPartOf":{"@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/"},"author":{"name":"Zubaida Naheeda","@id":"https:\/\/entri.app\/blog\/#\/schema\/person\/57cc17a9be1cbae603693210c714d289"},"headline":"Principles And Methods Of Food Preservation","datePublished":"2022-06-23T03:56:05+00:00","dateModified":"2022-06-23T05:46:26+00:00","mainEntityOfPage":{"@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/"},"wordCount":1268,"commentCount":0,"publisher":{"@id":"https:\/\/entri.app\/blog\/#organization"},"image":{"@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage"},"thumbnailUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png","articleSection":["Articles","General Knowledge"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/","url":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/","name":"Principles And Methods Of Food Preservation - Entri Blog","isPartOf":{"@id":"https:\/\/entri.app\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage"},"image":{"@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage"},"thumbnailUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png","datePublished":"2022-06-23T03:56:05+00:00","dateModified":"2022-06-23T05:46:26+00:00","breadcrumb":{"@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#primaryimage","url":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png","contentUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/06\/Principles-And-Methods-Of-Food-Preservation.png","width":820,"height":615},{"@type":"BreadcrumbList","@id":"https:\/\/entri.app\/blog\/principles-and-methods-of-food-preservation\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/entri.app\/blog\/"},{"@type":"ListItem","position":2,"name":"General Knowledge","item":"https:\/\/entri.app\/blog\/category\/general-knowledge\/"},{"@type":"ListItem","position":3,"name":"Principles And Methods Of Food Preservation"}]},{"@type":"WebSite","@id":"https:\/\/entri.app\/blog\/#website","url":"https:\/\/entri.app\/blog\/","name":"Entri Blog","description":"","publisher":{"@id":"https:\/\/entri.app\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/entri.app\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/entri.app\/blog\/#organization","name":"Entri App","url":"https:\/\/entri.app\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png","contentUrl":"https:\/\/entri.app\/blog\/wp-content\/uploads\/2019\/10\/Entri-Logo-1.png","width":989,"height":446,"caption":"Entri App"},"image":{"@id":"https:\/\/entri.app\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/entri.me\/","https:\/\/x.com\/entri_app"]},{"@type":"Person","@id":"https:\/\/entri.app\/blog\/#\/schema\/person\/57cc17a9be1cbae603693210c714d289","name":"Zubaida Naheeda","url":"https:\/\/entri.app\/blog\/author\/naida\/"}]}},"_links":{"self":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts\/25529489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/users\/116"}],"replies":[{"embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/comments?post=25529489"}],"version-history":[{"count":7,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts\/25529489\/revisions"}],"predecessor-version":[{"id":25529859,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/posts\/25529489\/revisions\/25529859"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/media\/25529492"}],"wp:attachment":[{"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/media?parent=25529489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/categories?post=25529489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/entri.app\/blog\/wp-json\/wp\/v2\/tags?post=25529489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}