{"id":35804,"date":"2025-09-30T12:31:18","date_gmt":"2025-09-30T11:31:18","guid":{"rendered":"https:\/\/www.manukanewzealand.eu\/?page_id=35804"},"modified":"2026-01-30T15:49:43","modified_gmt":"2026-01-30T14:49:43","slug":"c3-c4","status":"publish","type":"page","link":"https:\/\/www.manukanewzealand.eu\/sl\/c3-c4\/","title":{"rendered":"Prevara medu - sladkorji C3 in C4"},"content":{"rendered":"  <div id=\"page-header-1794208695\" class=\"page-header-wrapper\">\n  <div class=\"page-title dark divided-title\">\n\n        <div class=\"page-title-bg\">\n      <div class=\"title-bg fill bg-fill\"\n        data-parallax-container=\".page-title\"\n        data-parallax-background\n        data-parallax=\"-\">\n      <\/div>\n      <div class=\"title-overlay fill\"><\/div>\n    <\/div>\n    \n    <div class=\"page-title-inner container align-center flex-row medium-flex-wrap\" >\n              <div class=\"title-wrapper is-large flex-col text-left medium-text-center\">\n          <h1 class=\"entry-title mb-0\">\n            Honey Fraud \u2013 C3 &amp; C4 Sugars          <\/h1>\n        <\/div>\n                    <div class=\"title-content flex-col flex-right text-right medium-text-center\">\n        <div class=\"title-breadcrumbs pb-half pt-half\"><nav class=\"woocommerce-breadcrumb breadcrumbs \" aria-label=\"Breadcrumb\">Domov<\/nav><\/div>      <\/div>\n    <\/div>\n\n     \n<style>\n#page-header-1794208695 .title-bg {\n  background-image: url(https:\/\/www.manukanewzealand.eu\/wp-content\/uploads\/2026\/01\/mnz-header-2.jpg);\n}\n<\/style>\n  <\/div>\n  <div class=\"container header-wrapper-divider\"><hr\/><\/div>  <\/div>\n  \n<div class=\"row\"  id=\"row-449804185\">\n\n\t<div id=\"col-500592227\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<p>Honey fraud, where honey is adulterated or mislabelled, is a global issue. It damages consumer trust, undermines fair trade, and creates both economic and quality risks. Reliable methods are therefore essential to guarantee honey authenticity. This way, consumers know they are buying genuine honey, and producers know their products are valued correctly.<\/p>\n<p>Genuine honey consists mainly of natural sugars collected by bees from flower nectar, supplemented with water, enzymes, acids, and aromatic compounds. The exact composition varies by region, season, and plant species. Fraud occurs when honey is diluted or replaced with cheaper sugar syrups from other sources such as beet, rice, wheat, or corn. These additions alter honey\u2019s sugar profile and are often difficult to detect with basic tests.<\/p>\n<h2><strong>What are C3 and C4 sugars?<\/strong><\/h2>\n<p>The terms <strong>C3<\/strong> and <strong>C4<\/strong> refer to the way plants absorb carbon during photosynthesis:<\/p>\n<ul>\n<li><strong>C3 plants<\/strong> (such as sugar beet, rice, and wheat) produce <em>C3 sugars<\/em>. These have an isotopic carbon composition characteristic of this photosynthesis process.<\/li>\n<li><strong>C4 plants<\/strong> (such as sugarcane and corn) produce <em>C4 sugars<\/em>. Their isotopic composition differs, which allows them to be analytically distinguished from natural honey sugars.<\/li>\n<\/ul>\n<p>By analysing the sugar profile of honey, it is possible to determine whether C3 or C4 sugars have been added. This is a key indicator of adulteration, since genuine honey contains only sugars from flower nectar.<\/p>\n<h2><strong>How is testing carried out?<\/strong><\/h2>\n<p>Internationally recognised testing methods are applied to detect honey fraud:<\/p>\n<ul>\n<li><strong>C4 sugars<\/strong> are usually detected with the <em>AOAC 998.12<\/em> method, which uses <em>isotope ratio mass spectrometry (IRMS)<\/em>. This measures differences in carbon isotopes and determines whether honey has been diluted with cane or corn syrup.<\/li>\n<li><strong>C3 sugars<\/strong> are more difficult to detect. Advanced techniques have been developed for this, including methods by <strong>FoodQS GmbH<\/strong>, which can sensitively identify irregularities in sugar profiles and thus reveal additions of rice or beet syrup.<\/li>\n<\/ul>\n<h2><strong>How does MNZ ensure authenticity?<\/strong><\/h2>\n<p>MNZ conducts strict analyses for both <strong>C3<\/strong> and <strong>C4 sugars<\/strong>, carried out in New Zealand and at independent laboratories in Germany. These tests confirm that MNZ honey comes exclusively from flower nectar and has not been adulterated with external sugars.<\/p>\n<p>In addition to sugar analysis, MNZ applies further quality controls, including pollen analysis, chemical marker profiling, and microbiological testing. This multi-layered approach guarantees the authenticity and purity of every batch of honey.<\/p>\n<h2><strong>FoodQS GmbH<\/strong><\/h2>\n<p>FoodQS GmbH, an exclusive partner of MNZ, specialises in the detection of honey fraud. Their innovative method for detecting C3 sugars provides far greater sensitivity than traditional tests. For C4 sugars, they apply the internationally recognised AOAC 998.12 method. Combined, these techniques enable highly reliable verification of honey authenticity.<\/p>\n<h3 style=\"text-align: center;\">MNZ \u2013 100% Authentic Manuka Honey from New Zealand<\/h3>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n[\/section]\n","protected":false},"excerpt":{"rendered":"[\/section]\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-35804","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Honey Fraud \u2013 C3 &amp; C4 Sugars | MNZ\u00ae<\/title>\n<meta name=\"description\" content=\"Honey fraud by adding cheaper sugars such as from sugar beets, rice &amp; grains (C3 sugars) &amp; from sugar cane or corn (C4 sugars).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.manukanewzealand.eu\/sl\/c3-c4\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Honey Fraud \u2013 C3 &amp; C4 Sugars | MNZ\u00ae\" \/>\n<meta property=\"og:description\" content=\"Honey fraud by adding cheaper sugars such as from sugar beets, rice &amp; grains (C3 sugars) &amp; from sugar cane or corn (C4 sugars).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.manukanewzealand.eu\/sl\/c3-c4\/\" \/>\n<meta property=\"og:site_name\" content=\"MNZ - Manuka New Zealand\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-30T14:49:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.manukanewzealand.eu\/wp-content\/uploads\/2022\/11\/mnz-logo-200x200-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/c3-c4\\\/\",\"url\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/c3-c4\\\/\",\"name\":\"Honey Fraud \u2013 C3 & C4 Sugars | MNZ\u00ae\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/#website\"},\"datePublished\":\"2025-09-30T11:31:18+00:00\",\"dateModified\":\"2026-01-30T14:49:43+00:00\",\"description\":\"Honey fraud by adding cheaper sugars such as from sugar beets, rice & grains (C3 sugars) & from sugar cane or corn (C4 sugars).\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/c3-c4\\\/#breadcrumb\"},\"inLanguage\":\"sl-SI\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.manukanewzealand.eu\\\/c3-c4\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/c3-c4\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Honey Fraud \u2013 C3 &#038; C4 Sugars\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/#website\",\"url\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/\",\"name\":\"MNZ - Manuka New Zealand - The Best Raw Manuka Honey\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"sl-SI\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/#organization\",\"name\":\"MNZ - Manuka New Zealand - The Best Raw Manuka Honey\",\"url\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"sl-SI\",\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/mnz-logo-200x200-1.png\",\"contentUrl\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/mnz-logo-200x200-1.png\",\"width\":200,\"height\":200,\"caption\":\"MNZ - Manuka New Zealand - The Best Raw Manuka Honey\"},\"image\":{\"@id\":\"https:\\\/\\\/www.manukanewzealand.eu\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Medena prevara - sladkorji C3 in C4 | MNZ\u00ae","description":"Med se goljufa z dodajanjem cenej\u0161ih sladkorjev, kot so sladkor iz sladkorne pese, ri\u017ea in \u017eit (sladkorji C3) ter sladkor iz sladkornega trsa ali koruze (sladkorji C4).","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:\/\/www.manukanewzealand.eu\/sl\/c3-c4\/","og_locale":"sl_SI","og_type":"article","og_title":"Honey Fraud \u2013 C3 & C4 Sugars | MNZ\u00ae","og_description":"Honey fraud by adding cheaper sugars such as from sugar beets, rice & grains (C3 sugars) & from sugar cane or corn (C4 sugars).","og_url":"https:\/\/www.manukanewzealand.eu\/sl\/c3-c4\/","og_site_name":"MNZ - Manuka New Zealand","article_modified_time":"2026-01-30T14:49:43+00:00","og_image":[{"width":200,"height":200,"url":"https:\/\/www.manukanewzealand.eu\/wp-content\/uploads\/2022\/11\/mnz-logo-200x200-1.png","type":"image\/png"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.manukanewzealand.eu\/c3-c4\/","url":"https:\/\/www.manukanewzealand.eu\/c3-c4\/","name":"Medena prevara - sladkorji C3 in C4 | MNZ\u00ae","isPartOf":{"@id":"https:\/\/www.manukanewzealand.eu\/#website"},"datePublished":"2025-09-30T11:31:18+00:00","dateModified":"2026-01-30T14:49:43+00:00","description":"Med se goljufa z dodajanjem cenej\u0161ih sladkorjev, kot so sladkor iz sladkorne pese, ri\u017ea in \u017eit (sladkorji C3) ter sladkor iz sladkornega trsa ali koruze (sladkorji C4).","breadcrumb":{"@id":"https:\/\/www.manukanewzealand.eu\/c3-c4\/#breadcrumb"},"inLanguage":"sl-SI","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.manukanewzealand.eu\/c3-c4\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.manukanewzealand.eu\/c3-c4\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.manukanewzealand.eu\/"},{"@type":"ListItem","position":2,"name":"Honey Fraud \u2013 C3 &#038; C4 Sugars"}]},{"@type":"WebSite","@id":"https:\/\/www.manukanewzealand.eu\/#website","url":"https:\/\/www.manukanewzealand.eu\/","name":"MNZ - Manuka Nova Zelandija - najbolj\u0161i surov manuka med","description":"","publisher":{"@id":"https:\/\/www.manukanewzealand.eu\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.manukanewzealand.eu\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"sl-SI"},{"@type":"Organization","@id":"https:\/\/www.manukanewzealand.eu\/#organization","name":"MNZ - Manuka Nova Zelandija - najbolj\u0161i surov manuka med","url":"https:\/\/www.manukanewzealand.eu\/","logo":{"@type":"ImageObject","inLanguage":"sl-SI","@id":"https:\/\/www.manukanewzealand.eu\/#\/schema\/logo\/image\/","url":"https:\/\/www.manukanewzealand.eu\/wp-content\/uploads\/2022\/11\/mnz-logo-200x200-1.png","contentUrl":"https:\/\/www.manukanewzealand.eu\/wp-content\/uploads\/2022\/11\/mnz-logo-200x200-1.png","width":200,"height":200,"caption":"MNZ - Manuka New Zealand - The Best Raw Manuka Honey"},"image":{"@id":"https:\/\/www.manukanewzealand.eu\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/pages\/35804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/comments?post=35804"}],"version-history":[{"count":1,"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/pages\/35804\/revisions"}],"predecessor-version":[{"id":36082,"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/pages\/35804\/revisions\/36082"}],"wp:attachment":[{"href":"https:\/\/www.manukanewzealand.eu\/sl\/wp-json\/wp\/v2\/media?parent=35804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}