{"id":2874,"date":"2026-08-21T21:12:27","date_gmt":"2026-08-21T20:12:27","guid":{"rendered":"https:\/\/wheat-quail-856400.hostingersite.com\/?p=2874"},"modified":"2026-11-12T18:51:09","modified_gmt":"2026-11-12T17:51:09","slug":"xeno-free-serum-free-animal-component-free-difference","status":"publish","type":"post","link":"https:\/\/seamlessbio.de\/de\/xeno-free-serum-free-animal-component-free-difference\/","title":{"rendered":"Xenofrei vs. serumfrei vs. tierkomponentenfrei"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2874\" class=\"elementor elementor-2874\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-46d53ad5 e-flex e-con-boxed e-con e-parent\" data-id=\"46d53ad5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d959ec1 elementor-widget elementor-widget-text-editor\" data-id=\"2d959ec1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<!-- \nWORDPRESS BLOG POST\nSlug: xeno-free-serum-free-animal-component-free-difference\nSEO Title: Xeno-Free vs Serum-Free vs Animal Component-Free \u2014 What's the Difference? | SeamlessBio\nMeta Description: Xeno-free, serum-free, animal component-free, chemically defined \u2014 these terms mean different things. Complete guide to the terminology and what each requires in practice.\nFocus Keyword: xeno-free serum-free animal component-free difference\nAdditional Keywords: xeno-free cell culture definition, serum-free vs chemically defined, animal component-free ATMP manufacturing, xeno-free FBS alternative MSC\nCategory: Cell Culture \/ Serum-Free\nTags: Xeno-Free, Serum-Free, Animal Component-Free, Chemically Defined, ATMP, Cell Therapy, GMP\n-->\n\n<p><em>August 2026 \u00b7 6 Min. Lesezeit<\/em><\/p>\n\n<p>Xenofrei. Serumfrei. Tierkomponentenfrei. Chemisch definiert. Diese vier Begriffe stehen in fast jedem Zelltherapie-Protokoll \u2013 und sie sind keine Synonyme. Der falsche Begriff in einem Zulassungsdokument oder Herstellungsprotokoll kann Verwirrung, Verz\u00f6gerungen und R\u00fcckfragen zur Konformit\u00e4t ausl\u00f6sen. Hier steht genau, was jeder bedeutet.<\/p>\n<!-- BUY BOX (SEO: links to buy pages) -->\n<div class=\"sb-buy-box\" style=\"border:1px solid #cfe9e6;background:#f4fbfa;border-radius:12px;padding:22px 26px;margin:28px auto;max-width:1200px;box-sizing:border-box\">\n<h2 style=\"font-size:22px;line-height:1.3;margin:0 0 6px\">Serumfreie Zellkulturmedien ab EU-Lager kaufen<\/h2>\n<p style=\"margin:0 0 14px\">Angebot oder Testmuster anfragen \u2013 keine Mindestbestellmenge, Angebot innerhalb von 48 Stunden.<\/p>\n<ul style=\"margin:0;padding-left:20px;columns:2 300px;column-gap:32px\">\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/simplacex-serumfreies-medium-hek293t\/\">SimplaceX \u2013 serumfreies HEK293T-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/simplacecdx-chemisch-definiertes-medium-hek293t\/\">SimplaceCDX \u2013 chemisch definiertes HEK293T-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/naivacore-naives-ipsc-medium-hensm\/\">NaivaCore \u2013 naives iPSC-Medium (HENSM)<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/serumfreies-medium-cho\/\">Serumfreie CHO-Zellkulturmedien<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/cellimax-metacho-cd-cho-basalmedium\/\">CelliMax\u00ae MetaCHO &amp; Versa \u2013 CHO-Basalmedien<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/cellimax-cho-fga-feedmedium\/\">CelliMax\u00ae CHO-Feeds \u2013 FGa, FGa plus, FGb<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/serumfreies-msc-medium-gmp\/\">Serumfreies MSC-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/serumfreies-ipsc-medium-gmp\/\">Serumfreies iPSC- &amp; hESC-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/anwendungen\/organoid-3d-cell-culture\/\">OrganoMedium \u2013 Medium f\u00fcr die Organoid-Expansion<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/massgeschneiderte-zellkulturmedien\/\">Ma\u00dfgeschneiderte Zellkulturmedien \u2013 individuelle Formulierung<\/a><\/li>\n<\/ul>\n<p style=\"margin:14px 0 0\"><a href=\"https:\/\/seamlessbio.de\/de\/request-quote\/\" style=\"font-weight:600\">Angebot anfordern \u2192<\/a><\/p>\n<\/div>\n<!-- \/BUY BOX -->\n\n\n<h2>Die vier Begriffe \u2013 Definitionen<\/h2>\n\n<h3>Serumfrei<\/h3>\n<p><strong>Definition:<\/strong> Die Medienformulierung enth\u00e4lt kein Serum (FKS, Humanserum oder ein anderes Vollserum).<\/p>\n<p><strong>Was NICHT ausgeschlossen ist:<\/strong> Andere Bestandteile tierischen Ursprungs \u2013 BSA, bovines Transferrin, bovines Insulin, Trypsin, Rinderhypophysenextrakt, tierische Wachstumsfaktoren. Ein Medium kann serumfrei sein und dennoch mehrere Rinderproteine enthalten.<\/p>\n<p><strong>Beispiel:<\/strong> DMEM + 4 mg\/ml BSA + 10 \u00b5g\/ml bovines Transferrin + 10 \u00b5g\/ml bovines Insulin = serumfrei, aber NICHT tierkomponentenfrei.<\/p>\n\n<h3>Xenofrei<\/h3>\n<p><strong>Definition:<\/strong> Keine Bestandteile aus einer anderen Spezies als der kultivierten. F\u00fcr die humane Zellkultur also keine Bestandteile von Rind, Schwein, Maus oder anderen nichtmenschlichen Tieren. Materialien menschlichen Ursprungs (humanes Albumin, humanes Transferrin, humanes Thrombozytenlysat) sind zul\u00e4ssig.<\/p>\n<p><strong>Was NICHT ausgeschlossen ist:<\/strong> Biologische Materialien menschlichen Ursprungs. hPL, humanes AB-Serum, rekombinantes humanes Albumin (rHSA), rekombinantes humanes Transferrin und Bestandteile aus Humanplasma sind f\u00fcr die humane Zellkultur alle xenofrei.<\/p>\n<p><strong>Beispiel:<\/strong> DMEM + 5 % humanes Thrombozytenlysat + rHSA + OsrhTF = xenofrei, aber NICHT serumfrei (hPL entspricht Serum) und NICHT tierkomponentenfrei (hPL ist ein biologisches Material).<\/p>\n\n<h3>Tierkomponentenfrei (ACF)<\/h3>\n<p><strong>Definition:<\/strong> Keine Bestandteile tierischen Ursprungs \u2013 auch nicht von menschlichen Spendern. Alle Komponenten sind synthetisch oder rekombinant in Mikroorganismen bzw. Pflanzen hergestellt.<\/p>\n<p><strong>Was ausgeschlossen ist:<\/strong> FKS, Humanserum, hPL, BSA, bovines Transferrin, bovines Insulin \u2013 und auch rHSA, wenn es in einem S\u00e4ugetier-Expressionssystem hergestellt wurde. In Pflanzen exprimiertes rHSA (z. B. OsrhHSA aus Reis) und mikrobiell exprimierte Komponenten sind ACF.<\/p>\n<p><strong>Beispiel:<\/strong> Chemisch definiertes Basalmedium + OsrhHSA (aus Reis) + OsrhTF (aus Reis) + rekombinantes humanes Insulin (aus E. coli) + rekombinante Zytokine = ACF.<\/p>\n\n<h3>Chemisch definiert<\/h3>\n<p><strong>Definition:<\/strong> Jede Komponente ist eine aufgereinigte, identifizierte chemische Substanz mit bekannter Molek\u00fclstruktur und Konzentration. Keine undefinierten biologischen Gemische.<\/p>\n<p><strong>Was ausgeschlossen ist:<\/strong> Alle Vollseren (FKS, Humanserum), hPL und jeder undefinierte biologische Extrakt. Rekombinante Proteine gelten als chemisch definiert, wenn sie vollst\u00e4ndig charakterisiert sind.<\/p>\n<p><strong>Was eingeschlossen ist:<\/strong> Aminos\u00e4uren, Vitamine, anorganische Salze, rekombinante Zytokine, rekombinante Wachstumsfaktoren, rekombinantes Albumin, synthetische Lipide \u2013 alle in definierten Konzentrationen.<\/p>\n\n<h2>Wie die Begriffe zusammenh\u00e4ngen<\/h2>\n\n<table>\n  <tr>\n    <th>Medientyp<\/th>\n    <th>Serumfrei?<\/th>\n    <th>Xeno-frei?<\/th>\n    <th>Tierkomponentenfrei?<\/th>\n    <th>Chemisch definiert?<\/th>\n  <\/tr>\n  <tr>\n    <td>DMEM + 10 % FKS<\/td>\n    <td>Nein<\/td>\n    <td>Nein<\/td>\n    <td>Nein<\/td>\n    <td>Nein<\/td>\n  <\/tr>\n  <tr>\n    <td>DMEM + 5 % humanes AB-Serum<\/td>\n    <td>Nein<\/td>\n    <td>Ja (f\u00fcr humane Zellen)<\/td>\n    <td>Nein (menschlichen Ursprungs)<\/td>\n    <td>Nein<\/td>\n  <\/tr>\n  <tr>\n    <td>DMEM + 5 % hPL + rHSA<\/td>\n    <td>Nein (hPL entspricht Serum)<\/td>\n    <td>Ja<\/td>\n    <td>Nein<\/td>\n    <td>Nein<\/td>\n  <\/tr>\n  <tr>\n    <td>DMEM + BSA + bovines Transferrin<\/td>\n    <td>Ja<\/td>\n    <td>Nein<\/td>\n    <td>Nein<\/td>\n    <td>Nein<\/td>\n  <\/tr>\n  <tr>\n    <td>DMEM + rHSA + OsrhTF + rekombinantes Insulin<\/td>\n    <td>Ja<\/td>\n    <td>Ja<\/td>\n    <td>Ja<\/td>\n    <td>Ja (wenn alle Komponenten definiert sind)<\/td>\n  <\/tr>\n  <tr>\n    <td>Typisches kommerzielles hPSC-Erhaltungsmedium<\/td>\n    <td>Ja<\/td>\n    <td>Unterschiedlich (viele enthalten BSA)<\/td>\n    <td>Nein<\/td>\n    <td>Teilweise<\/td>\n  <\/tr>\n<\/table>\n\n<h2>Welchen Begriff verlangt Ihre Anwendung tats\u00e4chlich?<\/h2>\n\n<h3>ATMP-Herstellung (MSC, CAR-T, NK-Zellen)<\/h3>\n<p><strong>Erforderlich: mindestens xenofrei.<\/strong> Die ATMP-Leitlinien der EMA sehen f\u00fcr die Herstellung humaner Zellen in klinischer Qualit\u00e4t xenofreie Bedingungen vor, um das Risiko xenogener immunogener Reaktionen beim Patienten auszuschlie\u00dfen. Tierkomponentenfrei wird f\u00fcr die gr\u00f6\u00dfte regulatorische Sicherheit bevorzugt. Chemisch definiert ist das langfristige Ziel, aber noch nicht f\u00fcr alle Zelltypen erreichbar.<\/p>\n\n<h3>Forschung in der humanen Zellbiologie<\/h3>\n<p><strong>Serumfrei reicht meist aus.<\/strong> Wer sein Medium als \u201eserumfrei\u201c bezeichnet, meint meist, dass kein FKS verwendet wird \u2013 BSA oder bovines Transferrin werden oft ohne Bedenken weiter eingesetzt. F\u00fcr die nichtklinische Forschung ist das wissenschaftlich akzeptabel, sollte in Publikationen aber genau beschrieben werden.<\/p>\n\n<h3>GMP-Herstellung \u2013 IND-\/BLA-Antr\u00e4ge<\/h3>\n<p><strong>Tierkomponentenfrei wird zunehmend erwartet.<\/strong> Gutachter f\u00fcr Zelltherapie-INDs fragen inzwischen routinem\u00e4\u00dfig nach allen Rohstoffen tierischen Ursprungs \u2013 nicht nur nach Serum. Ein Herstellungsprozess mit bovinem BSA oder Transferrin erfordert dieselbe TSE\/BSE-Dokumentation wie FKS. Rekombinante humane Alternativen (rHSA, OsrhTF) beseitigen diesen Dokumentationsaufwand vollst\u00e4ndig.<\/p>\n\n<h3>Prozessentwicklung und Screening<\/h3>\n<p><strong>Jede Stufe kann passend sein.<\/strong> Beginnen Sie f\u00fcr die Machbarkeit mit serumhaltigen Bedingungen und gehen Sie mit zunehmender N\u00e4he zur klinischen Anwendung zu xenofrei oder ACF \u00fcber. Jede \u00c4nderung der Medienformulierung erfordert eine erneute Validierung \u2013 planen Sie \u00dcberg\u00e4nge fr\u00fchzeitig.<\/p>\n\n<h2>Produkte von SeamlessBio je Kategorie<\/h2>\n\n<table>\n  <tr>\n    <th>Kategorie<\/th>\n    <th>Produkt<\/th>\n    <th>Erh\u00e4ltlich bei SeamlessBio<\/th>\n  <\/tr>\n  <tr>\n    <td>Xenofreier Serumersatz<\/td>\n    <td>Humanes AB-Serum, humanes Thrombozytenlysat (hPL)<\/td>\n    <td><a href=\"https:\/\/seamlessbio.de\/de\/produkte\/humanserum\/\">Portfolio Humanserum<\/a><\/td>\n  <\/tr>\n  <tr>\n    <td>Xenofreies + ACF-Albumin<\/td>\n    <td>rHSA (OsrhHSA, aus Reis)<\/td>\n    <td><a href=\"https:\/\/seamlessbio.de\/de\/produkte\/albuminproteine\/\">rHSA<\/a><\/td>\n  <\/tr>\n  <tr>\n    <td>ACF-Eisenversorgung<\/td>\n    <td>OsrhTF (rekombinantes humanes Transferrin, aus Reis)<\/td>\n    <td><a href=\"https:\/\/seamlessbio.de\/de\/request-quote\/\">OsrhTF<\/a><\/td>\n  <\/tr>\n  <tr>\n    <td>Serumfreier Tr\u00e4ger (nicht human)<\/td>\n    <td>BSA Standard, Low Endotoxin, fetts\u00e4urefrei<\/td>\n    <td><a href=\"https:\/\/seamlessbio.de\/de\/produkte\/bsa\/\">Portfolio BSA<\/a><\/td>\n  <\/tr>\n<\/table>\n\n<hr>\n<p><strong>Weiterf\u00fchrende Literatur:<\/strong><\/p>\n<ul>\n  <li><a href=\"https:\/\/seamlessbio.de\/de\/ressourcen\/guides\/anpassung-an-die-serumfreie-zellkultur\/\">Protokoll zur serumfreien Adaptation \u2013 vollst\u00e4ndiger Leitfaden<\/a><\/li>\n  <li><a href=\"https:\/\/seamlessbio.de\/de\/ressourcen\/blog\/human-platelet-lysate-hpl-fbs-replacement-guide\/\">Humanes Thrombozytenlysat (hPL) \u2013 vollst\u00e4ndiger Leitfaden<\/a><\/li>\n  <li><a href=\"https:\/\/seamlessbio.de\/de\/ressourcen\/blog\/rhsa-vs-bsa-serum-free-cell-culture\/\">rHSA vs. BSA \u2013 was sollten Sie verwenden?<\/a><\/li>\n  <li><a href=\"https:\/\/seamlessbio.de\/de\/anwendungen\/ipsc-stem-cell-culture\/\">iPSC- &#038; Stammzellkultur \u2013 Leitfaden zur Medienstrategie<\/a><\/li>\n<\/ul>\n<p><em><a href=\"mailto:info@seamlessbio.de\">info@seamlessbio.de<\/a> | <a href=\"https:\/\/seamlessbio.de\/de\/kontakt\/\">Muster anfordern<\/a><\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>August 2026 \u00b7 6 min read Xeno-free. Serum-free. Animal component-free. Chemically defined. These four terms appear in almost every cell therapy protocol \u2014 and they are not synonyms. Using the wrong one in a regulatory document or manufacturing protocol can cause confusion, delays, and compliance questions. Here is exactly what each means. Buy serum-free cell [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2874","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Xeno-Free vs Serum-Free vs Animal Component-Free - Difference?<\/title>\n<meta name=\"description\" content=\"Xeno-free, serum-free, animal component-free, chemically defined \u2014 these terms mean different things. 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