{"id":10852,"date":"2025-07-02T13:00:04","date_gmt":"2025-07-02T13:00:04","guid":{"rendered":"https:\/\/www.proventusbioscience.com\/news\/2025\/07\/02\/reproductibilite-dun-lot-a-lautre-le-fondement-cache-des-produits-microbiens-industrialisables-a-grande-echelle\/"},"modified":"2026-06-25T17:21:10","modified_gmt":"2026-06-25T17:21:10","slug":"reproductibilite-dun-lot-a-lautre","status":"publish","type":"post","link":"https:\/\/www.proventusbioscience.com\/fr\/articles\/2025\/07\/02\/reproductibilite-dun-lot-a-lautre\/","title":{"rendered":"Reproductibilit\u00e9 d\u2019un lot \u00e0 l\u2019autre :<br\/>le fondement cach\u00e9 des produits microbiens industrialisables \u00e0 grande \u00e9chelle"},"content":{"rendered":"<blockquote><p>Avec les syst\u00e8mes de production biologique, la reproductibilit\u00e9 est assur\u00e9ment une vertu. Mais il y a plus : la robustesse du proc\u00e9d\u00e9 ! Visez toujours des proc\u00e9d\u00e9s capables d&rsquo;absorber les chocs tout en livrant le r\u00e9sultat attendu. Moins de lots perdus, moins de stress, une production plus fiable   <\/p><\/blockquote>\n<div class=\"blockquote-author\">\n<p>Denis Groleau, professeur associ\u00e9, Facult\u00e9 de g\u00e9nie,<br \/>\nUniversit\u00e9 de Sherbrooke et consultant en biotechnologie<\/p>\n<\/div>\n<p>La constance d&rsquo;un lot \u00e0 l&rsquo;autre n&rsquo;a rien d&rsquo;un simple \u00ab atout appr\u00e9ciable \u00bb. Elle constitue une exigence de base : celle qui permet d&rsquo;instaurer la confiance, de ma\u00eetriser les cha\u00eenes d&rsquo;approvisionnement et de convertir l&rsquo;innovation en une offre r\u00e9ellement commercialisable. <\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10312 size-full\" src=\"https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930.webp\" alt=\"\" width=\"2160\" height=\"1440\" srcset=\"https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930.webp 2160w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930-300x200.webp 300w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930-1024x683.webp 1024w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930-768x512.webp 768w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930-1536x1024.webp 1536w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_7930-2048x1365.webp 2048w\" sizes=\"auto, (max-width: 2160px) 100vw, 2160px\" \/><\/p>\n<div class=\"bloc-title\">\n<p>Quand un bon lot ne suffit pas<\/p>\n<\/div>\n<p>Un produit qui ne donne satisfaction qu&rsquo;une seule fois au cours d&rsquo;un unique essai ou d&rsquo;un seul cycle de production, rel\u00e8ve du prototype, non de la solution.<\/p>\n<p>Des<strong> lots irr\u00e9guliers introduisent du risque<\/strong> \u00e0 chaque niveau :<\/p>\n<ul>\n<li><strong>Les donn\u00e9es de terrain perdent leur fiabilit\u00e9.<\/strong><\/li>\n<li><strong>La confiance des clients s&rsquo;effrite.<\/strong><\/li>\n<li><strong>Les homologations r\u00e9glementaires deviennent plus difficiles \u00e0 d\u00e9fendre.<\/strong><\/li>\n<li><strong>La formulation et la logistique doivent \u00eatre r\u00e9ajust\u00e9es lot apr\u00e8s lot.<\/strong><\/li>\n<\/ul>\n<p>En somme, sans reproductibilit\u00e9, aucune performance n&rsquo;est digne de confiance.<\/p>\n<p>Or, la reproductibilit\u00e9 demeure l&rsquo;un des d\u00e9fis les plus sous-estim\u00e9s de la production microbienne.<\/p>\n<div class=\"boxed-text\">\n<div class=\"bloc-title\">\n<p>Pourquoi la reproductibilit\u00e9 se d\u00e9grade<\/p>\n<\/div>\n<p>Les syst\u00e8mes microbiens sont sensibles par nature. Des variations m\u00eame minimes et non document\u00e9es, en fermentation, lors du traitement en aval ou dans les conditions de formulation, suffisent \u00e0 modifier le profil biologique d&rsquo;un produit. <\/p>\n<p>Parmi<strong> les sources fr\u00e9quentes de d\u00e9rive<\/strong> :<\/p>\n<ul>\n<li><strong>De subtiles variations de l&rsquo;oxyg\u00e9nation ou des d\u00e9bits d&rsquo;alimentation en nutriments.<\/strong><\/li>\n<li><strong>Le passage \u00e0 l&rsquo;\u00e9chelle, des fermenteurs de laboratoire aux bior\u00e9acteurs industriels (2 L \u2192 2 000 L).<\/strong><\/li>\n<li><strong>Un approvisionnement irr\u00e9gulier en mati\u00e8res premi\u00e8res ou une qualit\u00e9 de support inconstante.<\/strong><\/li>\n<li><strong>Des interventions manuelles lors de la formulation ou du s\u00e9chage.<\/strong><\/li>\n<li><strong>La d\u00e9rive des capteurs et les al\u00e9as d&rsquo;entretien des \u00e9quipements.<\/strong><\/li>\n<li><strong>Une r\u00e9partition in\u00e9gale de la temp\u00e9rature dans les cuves de grand volume, du fait des limites de chauffage ou de refroidissement.<\/strong><\/li>\n<li><strong>Une r\u00e9partition in\u00e9gale de la temp\u00e9rature dans les cuves de grand volume, du fait des limites de chauffage ou de refroidissement.<\/strong><\/li>\n<\/ul>\n<p>Ces variations peuvent rester sans effet sur les num\u00e9rations en UFC ou sur l&rsquo;aspect visuel, tout en bouleversant le m\u00e9tabolisme de la souche, sa tol\u00e9rance au stress ou son comportement sur le terrain.<\/p>\n<\/div>\n<blockquote><p>Les produits biologiques, qu&rsquo;il s&rsquo;agisse de prot\u00e9ines ou de cellules, sont des produits passablement capricieux. M\u00eame en suivant scrupuleusement la \u00ab\u00a0recette de production\u00a0\u00bb, la performance du produit fini n&rsquo;est jamais pleinement garantie. Le produit biologique devra affronter le stress li\u00e9 \u00e0 sa formulation, puis son \u00ab\u00a0acceptation\u00a0\u00bb par des conditions de terrain plus ou moins hostiles. M\u00eame les meilleurs m\u00e9dicaments ne sont pas efficaces \u00e0 100 %.   <\/p><\/blockquote>\n<div class=\"blockquote-author\">\n<p>D. Groleau<\/p>\n<\/div>\n<div class=\"bloc-title\">\n<p>Concevoir pour la constance : le mod\u00e8le Proventus<\/p>\n<\/div>\n<p>Chez Proventus, la reproductibilit\u00e9 est int\u00e9gr\u00e9e d\u00e8s la conception, \u00e0 chaque \u00e9tape du d\u00e9veloppement, de la s\u00e9lection initiale des souches jusqu&rsquo;\u00e0 la production \u00e0 pleine \u00e9chelle. Notre objectif est simple : <strong>chaque lot doit se comporter exactement comme le pr\u00e9c\u00e9dent et comme le suivant<\/strong>. <\/p>\n<p>Notre <strong>protocole de reproductibilit\u00e9 <\/strong>repose sur :<\/p>\n<ol>\n<li><strong>La mod\u00e9lisation de la fermentation \u00e0 l&rsquo;\u00e9chelle industrielle<\/strong><br \/>\nNous anticipons les effets du passage \u00e0 l&rsquo;\u00e9chelle d\u00e8s le premier jour, en multipliant les essais \u00e0 diff\u00e9rents volumes et niveaux de stress, bien au-del\u00e0 des seules conditions de laboratoire (R&#038;D).<\/li>\n<li><strong>Le contr\u00f4le et la documentation des proc\u00e9d\u00e9s<\/strong><br \/>\nLes param\u00e8tres de fermentation font l&rsquo;objet d&rsquo;un suivi \u00e9troit. Chaque \u00e9cart est consign\u00e9, analys\u00e9, puis exploit\u00e9 pour affiner les proc\u00e9dures op\u00e9ratoires normalis\u00e9es (SOP) des cycles suivants. <\/li>\n<li><strong>Des points de contr\u00f4le qualit\u00e9 interm\u00e9diaires<\/strong><br \/>\nNous instaurons des contr\u00f4les aux \u00e9tapes charni\u00e8res : avant r\u00e9colte, apr\u00e8s r\u00e9colte, avant formulation, afin d&rsquo;intercepter les \u00e9carts avant qu&rsquo;ils n&rsquo;atteignent le client.<\/li>\n<li><strong>Des garde-fous de constance \u00e0 la formulation<\/strong><br \/>\nNos proc\u00e9d\u00e9s de formulation sont con\u00e7us pour r\u00e9duire la variabilit\u00e9 li\u00e9e aux op\u00e9rateurs, pr\u00e9server la stabilit\u00e9 microbienne et garantir l&rsquo;homog\u00e9n\u00e9it\u00e9 \u00e0 grande \u00e9chelle.<\/li>\n<\/ol>\n<blockquote><p>Faire monter en \u00e9chelle un proc\u00e9d\u00e9 microbien dont la cellule est le produit recherch\u00e9 comporte un risque \u00e0 chacune des \u00e9tapes, la plus p\u00e9rilleuse \u00e9tant le passage des fioles agit\u00e9es au premier bior\u00e9acteur de petit volume. Le r\u00e9sultat peut osciller entre l&rsquo;\u00e9chec total et 100 % de r\u00e9ussite, 70 % constituant d\u00e9j\u00e0 une issue prometteuse. Il faut savoir rester humble : on croit ma\u00eetriser les op\u00e9rations, mais c&rsquo;est la cellule qui tranche, au bout du compte. Le travail de mise \u00e0 l&rsquo;\u00e9chelle enseigne l&rsquo;humilit\u00e9.   <\/p><\/blockquote>\n<div class=\"blockquote-author\">\n<p>D. Groleau<\/p>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10360 size-full\" src=\"https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474.webp\" alt=\"\" width=\"1440\" height=\"2160\" srcset=\"https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474.webp 1440w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474-200x300.webp 200w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474-683x1024.webp 683w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474-768x1152.webp 768w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474-1024x1536.webp 1024w, https:\/\/www.proventusbioscience.com\/wp-content\/uploads\/2025\/09\/DSC_8474-1365x2048.webp 1365w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\" \/><\/p>\n<div class=\"bloc-title\">\n<p>Pourquoi la reproductibilit\u00e9 constitue un avantage concurrentiel<\/p>\n<\/div>\n<p>Sur les march\u00e9s microbiens interentreprises (B2B), l&rsquo;innovation ne suffit pas \u00e0 elle seule.<\/p>\n<p><strong>Les clients attendent des certitudes<\/strong> :<\/p>\n<ul>\n<li><strong>La certitude que le lot d&rsquo;aujourd&rsquo;hui sera identique \u00e0 celui du trimestre dernier.<\/strong><\/li>\n<li><strong>La certitude qu&rsquo;une production d\u00e9localis\u00e9e offrira une performance en tout point comparable.<\/strong><\/li>\n<li><strong>La certitude qu&rsquo;un partenariat de longue dur\u00e9e ne s&rsquo;effondrera pas sous l&rsquo;effet d&rsquo;une d\u00e9rive insidieuse.<\/strong><\/li>\n<\/ul>\n<p>Pour les distributeurs comme pour les int\u00e9grateurs, l<strong>a reproductibilit\u00e9 se traduit par un risque r\u00e9duit, une logistique fluidifi\u00e9e et une fid\u00e9lisation renforc\u00e9e de la client\u00e8le<\/strong>.<\/p>\n<div class=\"bloc-title\">\n<p>Conclusion : la reproductibilit\u00e9, nouvelle norme de robustesse<\/p>\n<\/div>\n<p>L&rsquo;innovation microbienne ne change pas d&rsquo;\u00e9chelle si la qualit\u00e9 ne suit pas le m\u00eame chemin. Chez Proventus, la reproductibilit\u00e9 inter-lots n&rsquo;est pas un simple jalon technique : c&rsquo;est le socle de la confiance \u00e0 l&rsquo;interne, sur le plan op\u00e9rationnel et sur le march\u00e9.  <\/p>\n<p>Car en production microbienne, un produit ne se juge pas \u00e0 son meilleur lot.<br \/>\nIl se juge \u00e0 son moins bon.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dans le d\u00e9veloppement des produits microbiens, l&rsquo;attention se porte le plus souvent sur la performance : le comportement d&rsquo;une souche lors des essais en laboratoire ou au champ. Pourtant, pour les \u00e9quipes techniques et industrielles, un enjeu plus discret et plus fondamental, conditionne la r\u00e9ussite d&rsquo;un produit \u00e0 grande \u00e9chelle : la reproductibilit\u00e9. <\/p>\n","protected":false},"author":2,"featured_media":10283,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57],"tags":[83,60,72,86,85],"class_list":["post-10852","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-assurance-qualite","tag-coherence-des-lots","tag-controle-de-la-fermentation","tag-mise-a-lechelle","tag-reproductibilite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Reproductibilit\u00e9 d\u2019un lot \u00e0 l\u2019autre :le fondement cach\u00e9 des produits microbiens industrialisables \u00e0 grande \u00e9chelle - Proventus 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