{"id":6377,"date":"2024-01-08T06:08:01","date_gmt":"2024-01-08T06:08:01","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6377"},"modified":"2026-04-28T10:42:23","modified_gmt":"2026-04-28T10:42:23","slug":"how-do-antioxidants-work","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/how-do-antioxidants-work\/","title":{"rendered":"Comment les antioxydants agissent-ils ?"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>1. Champ de recherche des antioxydants<\/p>\n<p>Les efforts de recherche sur les antioxydants se sont concentr\u00e9s sur les trois domaines suivants.<\/p>\n<p>(1) D\u00e9pistage des substances antioxydantes naturelles, telles que VE et TP (polyph\u00e9nols de th\u00e9)<\/p>\n<p>(2) Recherche sur la relation structure-effet des antioxydants. Les diff\u00e9rents types structurels d'antioxydants ont des activit\u00e9s diff\u00e9rentes, et m\u00eame l'activit\u00e9 d'un m\u00eame type structurel d'antioxydant est affect\u00e9e par le nombre et la position des substituants. Weng Xinchu et Zhao Baolu ont \u00e9tudi\u00e9 l'effet de la structure sur l'activit\u00e9 antioxydante en se basant respectivement sur l'exp\u00e9rience et le calcul m\u00e9canique quantique.<\/p>\n<p>(3) Recherche sur l'effet synergique des antioxydants. Par rapport aux antioxydants simples, les antioxydants compos\u00e9s sont favoris\u00e9s en raison de leur activit\u00e9 \u00e9lev\u00e9e, de sorte que l'\u00e9tude de la synergie est devenue un nouveau point chaud dans le domaine de la recherche sur les antioxydants. Les gens ont maintenant une compr\u00e9hension pr\u00e9liminaire de l'effet synergique, une \u00e9tude plus approfondie fournira une base th\u00e9orique pour les composants antioxydants composites et le rapport de concentration, ce qui ouvre de vastes perspectives d'application.<\/p>\n<p>J'expliquerai en d\u00e9tail pourquoi les antioxydants peuvent inhiber l'oxydation des graisses et des huiles ?<\/p>\n<p>L'inhibition efficace de l'oxydation est l'objectif de l'utilisation des antioxydants. En raison de leur structure et de leur nature propres, les antioxydants jouent un r\u00f4le de diverses mani\u00e8res, dont le m\u00e9canisme peut \u00eatre r\u00e9sum\u00e9 comme suit : trois.<\/p>\n<p>(1) La neutralisation des radicaux libres<\/p>\n<p>La r\u00e9action d'oxydation des compos\u00e9s lipidiques implique principalement la r\u00e9action en cha\u00eene des radicaux libres. Afin d'inhiber l'oxydation, outre l'utilisation d'emballages pour isoler l'air et la lumi\u00e8re, le moyen le plus efficace est l'ajout d'antioxydants. Les antioxydants jouent un r\u00f4le dans le pi\u00e9geage des radicaux libres, c'est pourquoi on les appelle des terminateurs de radicaux libres. La plupart des antioxydants, y compris l'EQ, le BHA, le BHT, le TBHQ, le VE, le TP, etc. qui sont couramment utilis\u00e9s dans le pass\u00e9, sont des terminateurs de radicaux libres efficaces. Ils agissent principalement en tant que donneurs d'hydrog\u00e8ne et r\u00e9agissent avec les radicaux lipidiques, de sorte que les radicaux libres sont transform\u00e9s en compos\u00e9s inactifs ou stables, interf\u00e9rant ou retardant ainsi l'\u00e9tape de croissance de la cha\u00eene dans la r\u00e9action en cha\u00eene, ce qui permet d'atteindre l'objectif d'inhibition de l'oxydation.<\/p>\n<p>AH Antioxydant<\/p>\n<p>A- Radicaux libres form\u00e9s par l'antioxydant lui-m\u00eame apr\u00e8s apport d'hydrog\u00e8ne<\/p>\n<p>&nbsp;<\/p>\n<p>Les compos\u00e9s ph\u00e9noliques r\u00e9agissent avec les radicaux lipidiques pour former des radicaux plus stables du fait que les \u00e9lectrons non appari\u00e9s peuvent \u00eatre distribu\u00e9s hors domaine sur l'anneau benz\u00e9nique.<\/p>\n<p>Par cons\u00e9quent, les conditions qu'un terminateur radical efficace doit remplir sont les suivantes :<\/p>\n<p>1.1 La capacit\u00e9 \u00e0 fournir rapidement des atomes d'hydrog\u00e8ne au radical lipidique.<\/p>\n<p>1.2 La stabilit\u00e9 du radical A- nouvellement g\u00e9n\u00e9r\u00e9 doit \u00eatre sup\u00e9rieure \u00e0 celle des radicaux ROO- et RO-.<\/p>\n<p>(2) Ch\u00e9lation des ions m\u00e9talliques<\/p>\n<p>De nombreux processus d'oxydation ont lieu avec la participation d'ions m\u00e9talliques. Les ions m\u00e9talliques jouent le r\u00f4le de transfert d'\u00e9lectrons dans le processus de changement de valence, ce qui peut raccourcir la p\u00e9riode d'initiation de la cha\u00eene, acc\u00e9l\u00e9rant ainsi le taux d'oxydation des compos\u00e9s lipidiques. Par cons\u00e9quent, l'\u00e9limination des ions m\u00e9talliques est importante pour inhiber la r\u00e9action d'oxydation.<\/p>\n<p>Les d\u00e9riv\u00e9s de l'acide citrique et de l'acide phosphorique peuvent former des complexes inertes avec les m\u00e9taux et inhiber la d\u00e9composition des hydroperoxydes, jouant ainsi le r\u00f4le d'antioxydant. Selon Katherinel et al, l'acide citrique et le polyphosphate de sodium peuvent inhiber l'oxydation en ch\u00e9latant les ions m\u00e9talliques. Produits Kemin.<\/p>\n<p>Il convient de souligner que le ch\u00e9lateur d'ions m\u00e9talliques inhibe la production de radicaux libres en ch\u00e9latant la substance qui initie la r\u00e9action en cha\u00eene et ne peut pas \u00eatre directement combin\u00e9 aux radicaux libres, jouant ainsi un effet antioxydant indirect, de sorte que l'effet antioxydant est souvent faible lorsqu'il est utilis\u00e9 seul, c'est pourquoi il est souvent utilis\u00e9 en combinaison avec d'autres antioxydants.<\/p>\n<p>(3) Pi\u00e9geage de l'oxyg\u00e8ne<\/p>\n<p>Ce type d'antioxydant inhibe principalement l'oxydation par le biais de sa propre r\u00e9action d'oxydor\u00e9duction. Le VC, en raison de la position mol\u00e9culaire 2, 3 sur l'existence de deux hydroxyles d'\u00e9nol adjacents, poss\u00e8de de fortes propri\u00e9t\u00e9s r\u00e9ductrices, peut r\u00e9duire efficacement le peroxyde dans l'huile, consommer l'oxyg\u00e8ne dans l'huile, inhibant ainsi l'apparition de l'oxydation. De m\u00eame, le sulfite et ses sels sont facilement oxyd\u00e9s en acide sulfonique et en sulfate dans les aliments, jouant ainsi un r\u00f4le antioxydant. Les alcalo\u00efdes peuvent gagner de l'\u00e9nergie en entrant en collision avec le 1O2 (oxyg\u00e8ne \u00e0 haute \u00e9nergie, oxyg\u00e8ne lin\u00e9aire simple), inactivant ainsi le 1O2 en 3O2 (oxyg\u00e8ne basal, oxyg\u00e8ne lin\u00e9aire triple).<\/p>\n<h1><strong><b>Contactez-nous d\u00e8s maintenant !<\/b><\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>R\u00e9ponse rapide :<\/strong> Une strat\u00e9gie de stabilisation pratique commence par \u00e9valuer le risque de d\u00e9gradation, puis s\u00e9lectionne l'ensemble d'additifs en fonction des conditions de transformation, de la dur\u00e9e de conservation et des exigences esth\u00e9tiques.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<h4><strong><b>Si vous avez besoin de Price, veuillez indiquer vos coordonn\u00e9es dans le formulaire ci-dessous. Nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures. Vous pouvez \u00e9galement m'envoyer un courriel\u00a0<a href=\"mailto:info@longchangchemical.com\"><span style=\"color: #00ccff;\">info@longchangchemical.com<\/span><\/a>\u00a0pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/b><\/strong><\/h4>\n<p>&nbsp;<\/p>\n<table width=\"981\">\n<tbody>\n<tr>\n<td width=\"499\"><strong>Produits de formulation<\/strong><\/td>\n<td width=\"151\"><\/td>\n<td width=\"331\"><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1135-cas-125643-61-0\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1135<\/span><\/a><\/td>\n<td>CAS 125643-61-0<\/td>\n<td>Irganox 1135 \/ Antioxydant 1135<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1425-cas-65140-91-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1425<\/span><\/a><\/td>\n<td>CAS 65140-91-2<\/td>\n<td>Irganox 1425 \/ Dragonox 1425 \/ Antioxydant 1425 \/ BNX 1425<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1726-cas-110675-26-8\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1726<\/span><\/a><\/td>\n<td>CAS 110675-26-8<\/td>\n<td>Antioxydant 1726 \/ Irganox 1726 \/ Omnistab AN 1726<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-3052-cas-61167-58-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 3052<\/span><\/a><\/td>\n<td>CAS 61167-58-6<\/td>\n<td>IRGANOX 3052 \/ Acrylate de 4-m\u00e9thylph\u00e9nyle \/ Antioxydant 3052<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-5057-cas-68411-46-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 5057<\/span><\/a><\/td>\n<td>CAS 68411-46-1<\/td>\n<td>Irganox 5057 \/ Antioxydant 5057 \/ Omnistab AN 5057<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-697-antioxidant-697-cas-70331-94-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 697<\/span><\/a><\/td>\n<td>CAS 70331-94-1<\/td>\n<td>Antioxydant 697 \/ Irganox 697 \/ Naugard XL-1 \/ Antioxydant 697<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-80-cas-90498-90-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 80<\/span><\/a><\/td>\n<td>CAS 90498-90-1<\/td>\n<td>Irganox 80 \/ Antioxydant 80<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1024-cas-32687-78-8\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1024<\/span><\/a><\/td>\n<td>CAS 32687-78-8<\/td>\n<td>Irganox 1024 \/ Antioxydant 1024<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1035-cas-41484-35-9\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1035<\/span><\/a><\/td>\n<td>CAS 41484-35-9<\/td>\n<td>Irganox 1035 \/ Antioxydant 1035<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaohe-s01-n40\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae HE-S01\/N40<\/span><\/a><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaohn-55-70-80-502-510-514-516-602\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae HN-55\/70\/80\/502\/510\/514\/516\/602<\/span><\/a><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-hc-30-100\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae HC-30\/100<\/span><\/a><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-ho-17-17eh\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae HO-17\/17EH<\/span><\/a><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-hs-502-503-504-603-605-608-101\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae HS-502\/503\/504\/603\/605\/608\/101<\/span><\/a><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Phosphite antioxydant<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-168-cas-31570-04-4\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 168<\/span><\/a><\/td>\n<td>CAS 31570-04-4<\/td>\n<td>Irganox 168 \/ Antioxydant 168<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-626-cas-26741-53-7\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 626<\/span><\/a><\/td>\n<td>CAS 26741-53-7<\/td>\n<td>Ultranox 626 \/ Irgafos 126<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1790-cas-40601-76-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1790<\/span><\/a><\/td>\n<td>CAS 40601-76-1<\/td>\n<td>Antioxydant 1790\/ Cyanox 1790 \/ Irganox 1790<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-245-cas-36443-68-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 245<\/span><\/a><\/td>\n<td>CAS 36443-68-2<\/td>\n<td>Irganox 245 \/ Antioxydant 245<\/td>\n<\/tr>\n<tr>\n<td><strong>Phosphites de haute performance<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1500-cas-96152-48-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1500<\/span><\/a><\/td>\n<td>CAS 96152-48-6<\/td>\n<td>Antioxydant 1500<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao4500-cas-13003-12-8\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 4500<\/span><\/a><\/td>\n<td>CAS 13003-12-8<\/td>\n<td>Antioxydant 4500<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-pdp-cas-80584-86-7\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae PDP<\/span><\/a><\/td>\n<td>CAS 80584-86-7<\/td>\n<td>PowerNox DHOP \/ Antioxydant DHOP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao618-cas-3806-34-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 618<\/span><\/a><\/td>\n<td>CAS 3806-34-6<\/td>\n<td>Antioxydant 618<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaodlp-cas-21302-09-0\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DLP<\/span><\/a><\/td>\n<td>CAS 21302-09-0<\/td>\n<td>Antioxydant DLP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaodpp-cas-4712-55-4\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DPP<\/span><\/a><\/td>\n<td>CAS 4712-55-4<\/td>\n<td>Antioxydant DPP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaodtdp-cas-36432-46-9\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DTDP<\/span><\/a><\/td>\n<td>CAS 36432-46-9<\/td>\n<td>Antioxydant DTDP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaothop-cas-80584-85-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae THOP<\/span><\/a><\/td>\n<td>CAS 80584-85-6<\/td>\n<td>Antioxydant THOP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-tnpp-cas-26523-78-4\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae TNPP<\/span><\/a><\/td>\n<td>CAS 26523-78-4<\/td>\n<td>Antioxydant TNPP \/ Tris(nonylphenyl) phosphite<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-pep-36-cas-80693-00-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae PEP-36<\/span><\/a><\/td>\n<td>CAS 80693-00-1<\/td>\n<td>Antioxydant 636 \/ Antioxydant 636<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-9228-cas-154862-43-8\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 9228<\/span><\/a><\/td>\n<td>CAS 154862-43-8<\/td>\n<td>Irganox 9228 \/ Antioxydant 9228<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-pepq-cas-119345-01-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae PEPQ<\/span><\/a><\/td>\n<td>CAS 119345-01-6<\/td>\n<td>Hostanox PEPQ \/ Antioxydant PEPQ<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Phosphites \u00e0 faible degr\u00e9 d'impuret\u00e9<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-dpop-cas-15647-08-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DPOP<\/span><\/a><\/td>\n<td>CAS 15647-08-2<\/td>\n<td>Phosphite de 2-\u00e9thylhexyle et de diph\u00e9nyle<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao8621-cas-68123-00-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 8621<\/span><\/a><\/td>\n<td>CAS 68123-00-2<\/td>\n<td>Antioxydant 8621<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaodpdp-cas-26544-23-0\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DPDP<\/span><\/a><\/td>\n<td>CAS 26544-23-0<\/td>\n<td>Antioxydant DPDP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaopddp-cas-25550-98-5\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae PDDP<\/span><\/a><\/td>\n<td>CAS 25550-98-5<\/td>\n<td>Antioxydant PDDP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaopdop-cas-3164-60-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae PDOP<\/span><\/a><\/td>\n<td>CAS 3164-60-1<\/td>\n<td>Antioxydant PDOP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaotpp-cas-101-02-0\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae TPP<\/span><\/a><\/td>\n<td>CAS 101-02-0<\/td>\n<td>Antioxydant TPP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/polydicyclopentadiene-co-p-cresol-cas-68610-51-5\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae Poly(dicyclopentadi\u00e8ne-co-p-cr\u00e9sol)<\/span><\/a><\/td>\n<td>CAS 68610-51-5<\/td>\n<td>Poly(dicyclopentadi\u00e8ne-co-p-cr\u00e9sol)<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-seed-cas-42774-15-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae SEED<\/span><\/a><\/td>\n<td>CAS 42774-15-2<\/td>\n<td>Antioxydant SEED \/ Omnistab LS 5519 \/ Stabilisateur de lumi\u00e8re 856<\/td>\n<\/tr>\n<tr>\n<td><strong>Antioxydants ph\u00e9noliques inhib\u00e9s<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-264-cas-128-37-0\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 264<\/span><\/a><\/td>\n<td>CAS 128-37-0<\/td>\n<td>Antioxydant 264 \/ Butylhydroxytolu\u00e8ne<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/26-di-tert-butylphenol-cas-128-39-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 2,6-Di-tert-butylph\u00e9nol<\/span><\/a><\/td>\n<td>CAS 128-39-2<\/td>\n<td>2,6-Di-tert-butylph\u00e9nol<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-300-cas-96-69-5\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 300<\/span><\/a><\/td>\n<td>CAS 96-69-5<\/td>\n<td>Irganox 300 \/ Antioxydant 300<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-2246-cas-119-47-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 2246<\/span><\/a><\/td>\n<td>CAS 119-47-1<\/td>\n<td>Irganox 2246 \/ BNX 2246<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/antioxidant-1222-cas-976-56-7\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1222<\/span><\/a><\/td>\n<td>CAS 976-56-7<\/td>\n<td>Antioxydant 1222 \/ Irganox 1222<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-702-cas-118-82-1\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 702<\/span><\/a><\/td>\n<td>CAS 118-82-1<\/td>\n<td>Irganox 702 \/ Antioxydant 702 \/ Ethanox 702<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-dbhq-cas-88-58-4\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DBHQ<\/span><\/a><\/td>\n<td>CAS 88-58-4<\/td>\n<td>Antioxydant DTBHQ<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-mtbhq-cas-1948-33-0-industrial-grade\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae MTBHQ<\/span><\/a><\/td>\n<td>CAS 1948-33-0<\/td>\n<td>2-tert-butylhydroquinone Qualit\u00e9 industrielle<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1076-cas-2082-79-3\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1076<\/span><\/a><\/td>\n<td>CAS 2082-79-3<\/td>\n<td>Irganox 1076 \/ Antioxydant 1076<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1010-cas-6683-19-8\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1010<\/span><\/a><\/td>\n<td>CAS 6683-19-8<\/td>\n<td>Irganox 1010 \/ Antioxydant 1010<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1330-cas-1709-70-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1330<\/span><\/a><\/td>\n<td>CAS 1709-70-2<\/td>\n<td>Irganox 1330 \/ Ethanox 330<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1520-cas-110553-27-0-2\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1520<\/span><\/a><\/td>\n<td>CAS 110553-27-0<\/td>\n<td>Irganox 1520 \/ Antioxydant 1520<\/td>\n<\/tr>\n<tr>\n<td><strong>Phosphites sans ph\u00e9nol Antioxydants<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-8608-cas-26544-27-4\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 8608<\/span><\/a><\/td>\n<td>CAS 26544-27-4<\/td>\n<td>Antioxydant AO DPD \/ Everaox 202<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao430-cas-36788-39-3\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 430<\/span><\/a><\/td>\n<td>CAS 36788-39-3<\/td>\n<td>Antioxydant 430 \/ WESTON 430<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao8608t-cas-1334238-11-7-69439-68-5\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 8608T<\/span><\/a><\/td>\n<td>CAS 1334238-11-7, 69439-68-5<\/td>\n<td>Antioxydant 8608T<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao8627-cas-68610-62-8\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 8627<\/span><\/a><\/td>\n<td>CAS 68610-62-8<\/td>\n<td>Antioxydant 8627<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaotdp-cas-25448-25-3\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae TDP<\/span><\/a><\/td>\n<td>CAS 25448-25-3<\/td>\n<td>Antioxydant TDP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaotlp-cas-3076-63-9\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae TLP<\/span><\/a><\/td>\n<td>CAS 3076-63-9<\/td>\n<td>Antioxydant TLP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaotop-cas-301-13-3\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae TOP<\/span><\/a><\/td>\n<td>CAS 301-13-3<\/td>\n<td>Antioxydant TOP<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaottdp-cas-77745-66-5\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae TTDP<\/span><\/a><\/td>\n<td>CAS 77745-66-5<\/td>\n<td>Antioxydant TTDP<\/td>\n<\/tr>\n<tr>\n<td><strong>Esters thioliques Antioxydants<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-dltdp-cas-123-28-4\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DLTDP<\/span><\/a><\/td>\n<td>CAS 123-28-4<\/td>\n<td>Thiodipropionate de dilauryle<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-dstdp-cas-693-36-7\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae DSTDP<\/span><\/a><\/td>\n<td>CAS 693-36-7<\/td>\n<td>istearyl thiodipropionate\/ Antioxydant DSTDP<\/td>\n<\/tr>\n<tr>\n<td><strong>Antioxydants aminiques<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-3114-cas-27676-62-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 3114<\/span><\/a><\/td>\n<td>CAS 27676-62-6<\/td>\n<td>Irganox 3114 \/ Antioxydant 3114<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/cas-92-88-6\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 4,4\u2032-biph\u00e9nol<\/span><\/a><\/td>\n<td>CAS 92-88-6<\/td>\n<td>4,4\u2032-biph\u00e9nol<\/td>\n<\/tr>\n<tr>\n<td><strong>D\u00e9sactivateurs de m\u00e9taux Antioxydants<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1098-cas-23128-74-7\/\"><span style=\"color: #00ccff;\">CHLUMIAO\u00ae 1098<\/span><\/a><\/td>\n<td>CAS 23128-74-7<\/td>\n<td>Irganox 1098 \/ Antioxydant 1098<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How buyers usually evaluate antioxidants and stabilizers<\/h2>\n<p>La plupart des d\u00e9cisions concernant les stabilisateurs sont plus pertinentes lorsqu&#039;elles sont envisag\u00e9es dans le cadre d&#039;un ensemble de solutions plut\u00f4t que pour un produit individuel. Les acheteurs techniques parviennent g\u00e9n\u00e9ralement \u00e0 la r\u00e9ponse la plus convaincante en examinant conjointement le vieillissement thermique \u00e0 long terme, la stabilit\u00e9 du proc\u00e9d\u00e9, la r\u00e9sistance aux intemp\u00e9ries et la sensibilit\u00e9 \u00e0 la couleur.<\/p>\n<ul>\n<li><strong>Distinguer la protection du traitement de la stabilit\u00e9 \u00e0 long terme\u00a0:<\/strong> Le meilleur additif pour l&#039;historique de fusion n&#039;est pas toujours celui qui offre la meilleure dur\u00e9e de vie.<\/li>\n<li><strong>Utilisez la synergie de mani\u00e8re d\u00e9lib\u00e9r\u00e9e\u00a0:<\/strong> De nombreux syst\u00e8mes polym\u00e8res et de rev\u00eatements fonctionnent de mani\u00e8re optimale lorsque les stabilisateurs primaires et secondaires sont intentionnellement associ\u00e9s.<\/li>\n<li><strong>V\u00e9rifier les exigences en mati\u00e8re de couleur et de nettet\u00e9\u00a0:<\/strong> Les syst\u00e8mes transparents, p\u00e2les, destin\u00e9s au contact alimentaire ou blancs n\u00e9cessitent souvent un emballage plus compact que les produits industriels fonc\u00e9s.<\/li>\n<li><strong>V\u00e9rifier l&#039;\u00e9tat de vieillissement r\u00e9el\u00a0:<\/strong> La chaleur, les UV, l&#039;humidit\u00e9 et l&#039;exposition aux intemp\u00e9ries peuvent chacun modifier la m\u00e9thode de stabilisation commercialement la plus efficace.<\/li>\n<\/ul>\n<h3>R\u00e9f\u00e9rences de produits recommand\u00e9es<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1010-cas-6683-19-8\/\">CHLUMIAO 1010<\/a>:<\/strong> Un antioxydant primaire de r\u00e9f\u00e9rence largement utilis\u00e9 pour la stabilit\u00e9 thermique \u00e0 long terme.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-168-cas-31570-04-4\/\">CHLUMIAO 168<\/a>:<\/strong> Un r\u00e9f\u00e9rence pratique de stabilit\u00e9 du proc\u00e9d\u00e9 lorsque le contr\u00f4le de l'hydroperoxyde est important.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-1076-cas-2082-79-3\/\">CHLUMIAO 1076<\/a>:<\/strong> Un point de r\u00e9f\u00e9rence bien connu pour les antioxydants ph\u00e9noliques lorsqu&#039;il s&#039;agit d&#039;\u00e9quilibrer efficacit\u00e9 et ad\u00e9quation \u00e0 la formulation.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiao-dltdp-cas-123-28-4\/\">CHLUMIAO DLTDP<\/a>:<\/strong> Une voie utile pour l&#039;utilisation de stabilisateurs contenant du soufre lors de l&#039;\u00e9valuation de combinaisons d&#039;antioxydants synergiques.<\/li>\n<\/ul>\n<h3>FAQ pour les acheteurs et les formulateurs<\/h3>\n<p><strong>Pourquoi les ensembles de stabilisateurs sont-ils souvent plus efficaces qu&#039;un additif seul\u00a0?<\/strong><br \/>\u00c9tant donn\u00e9 que diff\u00e9rents produits peuvent prot\u00e9ger diff\u00e9rentes parties du processus de d\u00e9gradation, l&#039;ensemble couvre souvent un plus grand nombre de risques qu&#039;un seul niveau de d\u00e9gradation.<\/p>\n<p><strong>L&#039;ajout d&#039;antioxydants ou de stabilisateurs UV am\u00e9liore-t-il toujours les performances\u00a0?<\/strong><br \/>Pas n\u00e9cessairement. Un surdosage peut augmenter les co\u00fbts et parfois engendrer des effets secondaires\u00a0; la plupart des syst\u00e8mes fonctionnent donc de mani\u00e8re optimale dans une plage de dosage test\u00e9e.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>1. Research scope of antioxidants Research efforts on antioxidants have focused on the following three areas. (1) Screening of natural antioxidant substances, such as VE and TP (tea polyphenols) (2)<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152],"tags":[],"class_list":["post-6377","post","type-post","status-publish","format-standard","hentry","category-antioxidant"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How do antioxidants work? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"1. Research scope of antioxidants Research efforts on antioxidants have focused on the following three areas. 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