{"id":232765,"date":"2026-09-05T09:30:00","date_gmt":"2026-09-05T07:30:00","guid":{"rendered":"https:\/\/naturdao.com\/?p=232765"},"modified":"2026-09-07T17:29:34","modified_gmt":"2026-09-07T15:29:34","slug":"dao-vegetale-animale-microbienne-comparaison","status":"publish","type":"post","link":"https:\/\/naturdao.com\/fr\/dao-vegetale-animale-microbienne-comparaison\/","title":{"rendered":"DAO v\u00e9g\u00e9tale, animale ou microbienne : la premi\u00e8re \u00e9tude qui les compare face \u00e0 face"},"content":{"rendered":"<h2>Pourquoi la DAO nous int\u00e9resse<\/h2>\n<p>L&#8217;histamine est une mol\u00e9cule qui se forme naturellement dans de nombreux aliments, surtout les ferment\u00e9s (fromages affin\u00e9s, charcuterie, vin, conserves de poisson), et sa quantit\u00e9 varie \u00e9norm\u00e9ment d&#8217;un produit \u00e0 l&#8217;autre. En conditions normales, elle ne pose aucun probl\u00e8me : arriv\u00e9e dans l&#8217;intestin, une enzyme appel\u00e9e diamine oxydase (DAO) la d\u00e9grade avant qu&#8217;elle ne passe dans le sang. L&#8217;EFSA estime qu&#8217;une personne en bonne sant\u00e9 tol\u00e8re sans difficult\u00e9 entre 25 et 50 mg d&#8217;histamine par repas.<\/p>\n<p>Le probl\u00e8me appara\u00eet lorsque cette enzyme ne travaille pas assez vite. C&#8217;est ce que l&#8217;on appelle l&#8217;intol\u00e9rance \u00e0 l&#8217;histamine, une situation qui toucherait au moins 1 \u00e0 3 % de la population et que l&#8217;on associe \u00e0 des g\u00eanes tr\u00e8s vari\u00e9es (maux de t\u00eate, d\u00e9mangeaisons, rougeur du visage, congestion ou sympt\u00f4mes digestifs). La r\u00e9ponse classique a \u00e9t\u00e9 le r\u00e9gime pauvre en histamine, mais il est si restrictif qu&#8217;il est difficile \u00e0 tenir dans la dur\u00e9e. D&#8217;o\u00f9 l&#8217;int\u00e9r\u00eat croissant pour les compl\u00e9ments qui apportent de la DAO et aident \u00e0 d\u00e9grader l&#8217;histamine de l&#8217;alimentation elle-m\u00eame.<\/p>\n<h2>Ce qui a \u00e9t\u00e9 compar\u00e9, et pourquoi c&#8217;est in\u00e9dit<\/h2>\n<p>Jusqu&#8217;ici, diff\u00e9rentes sources de DAO avaient \u00e9t\u00e9 \u00e9tudi\u00e9es s\u00e9par\u00e9ment, avec des m\u00e9thodes et des laboratoires diff\u00e9rents, ce qui rendait impossible toute comparaison r\u00e9elle. <strong>Ce travail est le premier \u00e0 les mettre toutes les trois face \u00e0 face dans les m\u00eames conditions<\/strong> :<\/p>\n<p><strong>DAO v\u00e9g\u00e9tale<\/strong> : germes germ\u00e9s et lyophilis\u00e9s de pois vert, pois chiche, lentille et soja.<\/p>\n<p><strong>DAO animale<\/strong> : extrait prot\u00e9ique de rein de porc, la source autoris\u00e9e dans l&#8217;Union europ\u00e9enne depuis 2017 et celle que contiennent aujourd&#8217;hui la plupart des compl\u00e9ments du march\u00e9.<\/p>\n<p><strong>DAO microbienne<\/strong> : enzyme de la levure Yarrowia lipolytica, produite par biotechnologie et encore au stade de la recherche.<\/p>\n<p>Quatre aspects ont \u00e9t\u00e9 mesur\u00e9s : quelle activit\u00e9 poss\u00e8de chacune, avec quelle efficacit\u00e9 elle se lie \u00e0 l&#8217;histamine, quelles autres amines elle est capable de d\u00e9grader et, sans doute le plus pertinent en pratique, combien de temps elle reste active dans l&#8217;intestin.<\/p>\n<h2>Activit\u00e9 : la levure domine, et chez les plantes c&#8217;est le pois qui gagne<\/h2>\n<p>La DAO microbienne a montr\u00e9 de loin l&#8217;activit\u00e9 sp\u00e9cifique la plus \u00e9lev\u00e9e (11,12 nkat\/mg de prot\u00e9ine), environ 20 fois au-dessus des sources v\u00e9g\u00e9tales et environ 300 fois au-dessus de l&#8217;animale. Parmi les germes v\u00e9g\u00e9taux, <strong>le pois vert a \u00e9t\u00e9 le plus puissant (0,50 nkat\/mg)<\/strong>, suivi du pois chiche et de la lentille ; le soja est rest\u00e9 nettement en retrait. <strong>L&#8217;extrait de rein de porc a enregistr\u00e9 0,03 nkat\/mg.<\/strong><\/p>\n<h2>L&#8217;avantage de l&#8217;origine v\u00e9g\u00e9tale : elle ne se bloque pas et tient plus longtemps<\/h2>\n<p>C&#8217;est ici qu&#8217;apparaissent les deux r\u00e9sultats les plus int\u00e9ressants pour qui pense \u00e0 un compl\u00e9ment r\u00e9el, et non \u00e0 un tube \u00e0 essai.<\/p>\n<p>Le premier concerne la saturation. Les DAO de porc et de levure souffrent de ce que l&#8217;on appelle l&#8217;inhibition par le substrat : lorsqu&#8217;il y a beaucoup d&#8217;histamine autour, l&#8217;histamine elle-m\u00eame les bloque et elles rendent moins pr\u00e9cis\u00e9ment quand on en a le plus besoin. <strong>Dans le cas porcin, ce freinage se d\u00e9tecte d\u00e9j\u00e0 \u00e0 de faibles concentrations.<\/strong> <strong>La DAO v\u00e9g\u00e9tale, en revanche, n&#8217;a montr\u00e9 ce comportement dans aucune des quatre l\u00e9gumineuses \u00e9tudi\u00e9es<\/strong>, autrement dit elle continue de travailler m\u00eame face \u00e0 des repas particuli\u00e8rement charg\u00e9s en histamine. <strong>C&#8217;est la premi\u00e8re fois que cette diff\u00e9rence est d\u00e9crite.<\/strong><\/p>\n<p>Le second est la r\u00e9sistance \u00e0 la digestion. Soumis \u00e0 des conditions intestinales simul\u00e9es (pH 6,8, 37 \u00b0C, enzymes pancr\u00e9atiques et nutriments), <strong>les germes lyophilis\u00e9s de pois vert ont conserv\u00e9 la moiti\u00e9 de leur activit\u00e9 \u00e0 60 minutes et en gardaient encore 40 % au bout de trois heures<\/strong>. <strong>Les DAO de rein de porc et de levure ont r\u00e9sist\u00e9 30 et 20 minutes respectivement, et \u00e9taient compl\u00e8tement inactives avant une heure et demie.<\/strong> Traduit dans la vie r\u00e9elle : l&#8217;enzyme v\u00e9g\u00e9tale accompagne le repas bien plus longtemps dans l&#8217;intestin.<\/p>\n<h2>Chaque source a ses pr\u00e9f\u00e9rences<\/h2>\n<p>L&#8217;histamine ne voyage pas seule. Dans les aliments ferment\u00e9s apparaissent aussi d&#8217;autres amines biog\u00e8nes (cadav\u00e9rine, putrescine, tyramine) qui se disputent la m\u00eame enzyme. Les DAO v\u00e9g\u00e9tales se sont montr\u00e9es particuli\u00e8rement efficaces face \u00e0 la cadav\u00e9rine et \u00e0 la putrescine, <strong>celle de rein de porc a \u00e0 peine distingu\u00e9 les unes des autres et n&#8217;a pas d\u00e9grad\u00e9 la tyramine du tout<\/strong>, et la microbienne s&#8217;est distingu\u00e9e surtout face \u00e0 la tyramine. Ce sont des profils compl\u00e9mentaires, et savoir lequel est lequel permet de choisir la source selon le type d&#8217;aliment et l&#8217;objectif.<\/p>\n<h2>En r\u00e9sum\u00e9<\/h2>\n<p>L&#8217;\u00e9tude confirme que toutes les DAO ne se valent pas et que le choix de la source a des cons\u00e9quences pratiques. La voie microbienne est la plus puissante sur le papier et promet beaucoup pour l&#8217;avenir. La source v\u00e9g\u00e9tale, et en particulier le germe de pois vert, associe une activit\u00e9 solide \u00e0 deux qualit\u00e9s qui se traduisent directement en performance dans l&#8217;intestin : elle ne se bloque pas face \u00e0 de fortes concentrations d&#8217;histamine et reste active bien plus longtemps. S&#8217;y ajoute un avantage loin d&#8217;\u00eatre mineur sur le march\u00e9 actuel : son origine 100 % v\u00e9g\u00e9tale la rend adapt\u00e9e aux populations v\u00e9g\u00e9tariennes, v\u00e9ganes ou soumises \u00e0 des restrictions alimentaires d&#8217;ordre religieux.<\/p>\n<h2>NaturDAO, pionnier de la DAO v\u00e9g\u00e9tale<\/h2>\n<p>Tout cela cesse d&#8217;\u00eatre th\u00e9orique lorsque cela arrive jusqu&#8217;au consommateur, et il convient ici de rappeler une donn\u00e9e : <strong>NaturDAO a \u00e9t\u00e9 le premier compl\u00e9ment alimentaire du march\u00e9 formul\u00e9 avec de la DAO d&#8217;origine v\u00e9g\u00e9tale<\/strong>. Avant lui, qui voulait soutenir son enzyme n&#8217;avait que la voie animale \u00e0 port\u00e9e de main.<\/p>\n<p>Cette avance n&#8217;a rien d&#8217;un hasard. Miser sur le germe de pois (Pisum sativum) revenait \u00e0 choisir pr\u00e9cis\u00e9ment la source v\u00e9g\u00e9tale que la science a confirm\u00e9e peu \u00e0 peu comme la plus active, celle qui ne se bloque pas quand le repas est charg\u00e9 en histamine et celle qui r\u00e9siste le mieux au passage dans l&#8217;intestin. Aujourd&#8217;hui, les donn\u00e9es comparatives donnent raison \u00e0 ce pari.<\/p>\n<p>\u00c0 l&#8217;\u00e9vidence scientifique s&#8217;ajoute l&#8217;\u00e9vidence tout court : une formule 100 % v\u00e9g\u00e9tale, adapt\u00e9e \u00e0 qui suit une alimentation v\u00e9g\u00e9tarienne ou v\u00e9gane et \u00e0 qui ne consomme pas de d\u00e9riv\u00e9s porcins par conviction ou par croyance religieuse. \u00catre le premier a ouvert la cat\u00e9gorie. Les r\u00e9sultats que publie aujourd&#8217;hui la litt\u00e9rature scientifique expliquent pourquoi cela valait la peine de l&#8217;ouvrir.<\/p>\n<h2>Source<\/h2>\n<p>Costa-Catal\u00e0 J, Kettner L, Latorre-Moratalla ML, Vidal-Carou MC, Comas-Bast\u00e9 O, Fischer L. Comparative characterization of diamine oxidase (DAO) activity from plant, animal and microbial matrices. Food Bioscience. 2025;73:107771. <a href=\"https:\/\/doi.org\/10.1016\/j.fbio.2025.107771\" target=\"_blank\" rel=\"noopener\">DOI: 10.1016\/j.fbio.2025.107771<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La premi\u00e8re \u00e9tude qui compare dans les m\u00eames conditions la DAO v\u00e9g\u00e9tale, celle de rein de porc et la microbienne : quelle activit\u00e9 poss\u00e8de chacune, laquelle se bloque avec beaucoup d&#8217;histamine et laquelle tient le plus longtemps dans l&#8217;intestin.<\/p>\n","protected":false},"author":1097,"featured_media":234656,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[56],"tags":[],"class_list":["post-232765","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-des-articles"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Une \u00e9tude compare pour la premi\u00e8re fois les trois sources de DAO dans les m\u00eames conditions : activit\u00e9, inhibition par l&#039;histamine et r\u00e9sistance \u00e0 la digestion.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"google-site-verification\" 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