{"id":4434,"date":"2021-03-10T13:45:50","date_gmt":"2021-03-10T13:45:50","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4434"},"modified":"2024-09-28T11:54:34","modified_gmt":"2024-09-28T11:54:34","slug":"summary-of-different-glycoside-hydrolase-reactions","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/summary-of-different-glycoside-hydrolase-reactions\/","title":{"rendered":"R\u00e9sum\u00e9 des diff\u00e9rentes r\u00e9actions de la glycoside hydrolase"},"content":{"rendered":"<h5 class=\"wp-block-heading\">Actuellement, les glycosides hydrolases sont utilis\u00e9es dans l'\u00e9tude de la pr\u00e9paration d'une vari\u00e9t\u00e9 de glycosides et d'aglycones actifs. Parmi eux, la pr\u00e9paration enzymatique de saponines et de glycosides flavono\u00efdes en oxyglycosides est la plus importante. Apr\u00e8s des ann\u00e9es d'efforts de la part des chercheurs scientifiques, la glycoside hydrolase a obtenu de nombreux r\u00e9sultats gratifiants dans la pr\u00e9paration de glycosides et d'aglycones actifs.<\/h5>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">1. Biotransformation des glycosides flavono\u00efdes<\/h4>\r\n\r\n\r\n\r\n<h5 class=\"wp-block-heading\">Les flavono\u00efdes sont des polyph\u00e9nols largement r\u00e9pandus dans les plantes, principalement sous forme de glycosides. Des \u00e9tudes ont montr\u00e9 que les flavono\u00efdes ayant une activit\u00e9 biologique sont les ingr\u00e9dients actifs les plus importants dans les plantes comestibles, et qu'ils ont de multiples activit\u00e9s pharmacologiques telles que la protection du foie, l'anti-oxydation, l'anti-tumeur et l'anti-virus, et que leur activit\u00e9 est \u00e9troitement li\u00e9e \u00e0 leur structure. Comme la plupart des glycosides de flavono\u00efdes ont du mal \u00e0 p\u00e9n\u00e9trer dans le sang \u00e0 travers la paroi de l'intestin gr\u00eale et que leur biodisponibilit\u00e9 est faible, la modification structurelle des flavono\u00efdes naturels est devenue un point chaud de la recherche actuelle. L'utilisation de glycoside hydrolase pour hydrolyser les groupes glycosyl des glycosides flavono\u00efdes est devenue un moyen efficace d'am\u00e9liorer l'activit\u00e9 des flavono\u00efdes (tableau 1). Les glycosides flavono\u00efdes courants comprennent la rutine, l'hesp\u00e9ridine et la naringine, et leurs groupements de sucres sont g\u00e9n\u00e9ralement la rutine (\u03b1-1,6 rhamnose et glucose li\u00e9s) et le nouvel hesp\u00e9ride (\u03b1-1,2 rhamnose et glucose li\u00e9s), de sorte que la glycoside hydrolase hydrolyse la modification de celui-ci comprend principalement deux types d'exo- et d'endo-excision. L'\u03b1-rhamnosidase, qui peut hydrolyser les liaisons \u03b1-1,2 et \u03b1-1,6 rhamnosides, a \u00e9t\u00e9 isol\u00e9e et purifi\u00e9e \u00e0 partir d'Aspergillus niger et d'Aspergillus nidulans. Cette enzyme peut hydrolyser la rutine, la naringine et l'hesp\u00e9ridine et produire respectivement de l'isoquerc\u00e9tine, du plumoside et du glucoside d'hesp\u00e9r\u00e9tine. L'\u03b1-rhamnosidase recombinante clon\u00e9e \u00e0 partir d'Aspergillus aculeatus et de Clostridium stercorarium a \u00e9galement une activit\u00e9 d'hydrolyse du rhamnose dans les glycosides flavono\u00efdes. Pour l'hydrolyse des trois glycosides flavono\u00efdes susmentionn\u00e9s, outre les exoglycosidases, les endoglycosidases font \u00e9galement l'objet d'un grand nombre de rapports de recherche. La diglycosidase isol\u00e9e et purifi\u00e9e \u00e0 partir de Penicillium rugulosum, Penicillium decumben[ et Fagopyri herba, ainsi que la rutinase recombinante clon\u00e9e \u00e0 partir d'Aspergillus niger, peuvent hydrolyser la rutine pour produire de la querc\u00e9tine ayant une meilleure activit\u00e9 antioxydante. La naringinase peut \u00eatre isol\u00e9e et purifi\u00e9e \u00e0 partir d'Aspergillus niger BCC 25166 et peut hydrolyser la naringine pour produire de la naringine. La naringinase de l'Aspergillus niger 1344 peut hydrolyser la naringine et la rutine en m\u00eame temps pour produire respectivement de la naringine. Yuan et la querc\u00e9tine, mais l'hesp\u00e9ridine ne peut pas \u00eatre hydrolys\u00e9e. La diglycosidase d'Acremonium sp. DSM24697 et d'Actinoplanes missouriensis peut hydrolyser la nouvelle hesp\u00e9ridine dans l'hesp\u00e9ridine pour produire des produits d'hesp\u00e9r\u00e9tine hautement actifs.<\/h5>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Tableau 1. Biotransformation des glycosides flavono\u00efdes par la glycosidase<\/h4>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td>Produit<\/td>\r\n<td>Substrat<\/td>\r\n<td>R\u00e9action<\/td>\r\n<td>Organisme<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Isoquercitrine, Prunine,<\/td>\r\n<td>Rutine, Naringine,<\/td>\r\n<td>\u03b1-Rhamnosidase<\/td>\r\n<td><em>Aspergillus niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Glucoside d'hesp\u00e9r\u00e9tine<\/td>\r\n<td>Hesp\u00e9ridine<\/td>\r\n<td>\u03b1-Rhamnosidase<\/td>\r\n<td><em>Aspergillus nidulans<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\u00a0<\/td>\r\n<td>\u00a0<\/td>\r\n<td>\u03b1-Rhamnosidase<\/td>\r\n<td><em>Aspergillus aculeatus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\u00a0<\/td>\r\n<td>\u00a0<\/td>\r\n<td>\u03b1-Rhamnosidase<\/td>\r\n<td><em>Clostridium stercorarium<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Querc\u00e9tine<\/td>\r\n<td>Rutine<\/td>\r\n<td>\u03b2-Rutinosidase<\/td>\r\n<td><em>Penicillium rugulosum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Querc\u00e9tine<\/td>\r\n<td>Rutine<\/td>\r\n<td>\u03b2-Glycosidase<\/td>\r\n<td><em>Penicillium decumbens<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Querc\u00e9tine<\/td>\r\n<td>Rutine<\/td>\r\n<td>\u03b2-H\u00e9t\u00e9rodisaccharidase<\/td>\r\n<td><em>Fagopyri herba<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Querc\u00e9tine<\/td>\r\n<td>Rutine<\/td>\r\n<td>\u03b2-Rutinosidase<\/td>\r\n<td><em>Aspergillus niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Naring\u00e9nine<\/td>\r\n<td>Naringine<\/td>\r\n<td>Naringinase<\/td>\r\n<td><em>Aspergillus niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Naring\u00e9nine, Querc\u00e9tine<\/td>\r\n<td>Naringine, Rutine<\/td>\r\n<td>Naringinase<\/td>\r\n<td><em>Aspergillus niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Hesp\u00e9r\u00e9tine<\/td>\r\n<td>Hesp\u00e9ridine<\/td>\r\n<td>Diglycosidase<\/td>\r\n<td><em>Acremonium<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Hesp\u00e9r\u00e9tine<\/td>\r\n<td>Hesp\u00e9ridine<\/td>\r\n<td>Diglycosidase<\/td>\r\n<td><em>Actinoplanes missouriensis<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidzein<\/td>\r\n<td>Daidzin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Microbes non cultivables<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidzein<\/td>\r\n<td>Daidzin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Sulfolobus solfataricus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidzein<\/td>\r\n<td>Daidzin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Aspergillus oryzae<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidzein<\/td>\r\n<td>Daidzin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Pyrococcus furiosus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidz\u00e9ine, G\u00e9nist\u00e9ine<\/td>\r\n<td>Daidzin, Genistin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Bacillus subtilis<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>\u00a0<\/td>\r\n<td>\u00a0<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Thermotoga maritima<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidz\u00e9ine, G\u00e9nist\u00e9ine,<\/td>\r\n<td>Daidzin, Genistin,<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Dalbergia<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Glyciteine<\/td>\r\n<td>Glycitine<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Bacteroides thetaiotaomicron<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Baicalein<\/td>\r\n<td>Baicaline<\/td>\r\n<td>\u03b2-Glucuronidase<\/td>\r\n<td><em>Scutellaria viscidula<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Tilianin<\/td>\r\n<td>Linarine<\/td>\r\n<td>Naringinase<\/td>\r\n<td><em>Penicillium decumbens<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Butin<\/td>\r\n<td>Butrin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Amande<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Phloretin<\/td>\r\n<td>Phlorizine<\/td>\r\n<td>\u03b2-Glycosidase<\/td>\r\n<td><em>Intestin gr\u00eale de mouton<\/em><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n<h5 class=\"wp-block-heading\">Les isoflavones sont des flavono\u00efdes que l'on trouve principalement dans les l\u00e9gumineuses et qui contribuent \u00e0 la pr\u00e9vention des maladies et \u00e0 la sant\u00e9 humaine. Les principaux composants des isoflavones de soja sont la daidz\u00e9ine, la daidz\u00e9ine, la g\u00e9nistine, la g\u00e9nist\u00e9ine, la glycit\u00e9ine et l'aglycone de glycit\u00e9ine, dont l'aglycone d\u00e9glycosyl\u00e9e a une meilleure activit\u00e9 biologique. La \u03b2-glucosidase recombinante capable d'hydrolyser la daidz\u00e9ine pour produire de la daidz\u00e9ine a \u00e9t\u00e9 clon\u00e9e \u00e0 partir de la biblioth\u00e8que de g\u00e8nes du sol de la mangrove, de Sulfolobus solfataricus, d'Aspergillus oryzae et de Pyrococcus furiosus ; la \u03b2-glucosidase recombinante clon\u00e9e \u00e0 partir de Thermotoga maritima et de Bacillus subtilis Enzymes peut hydrolyser la daidz\u00e9ine et la g\u00e9nist\u00e9ine pour produire de la daidz\u00e9ine et de la g\u00e9nist\u00e9ine ; la glycosidase isol\u00e9e et purifi\u00e9e \u00e0 partir de Dalbergia et clon\u00e9e et recombin\u00e9e \u00e0 partir de Bacteroides thetaiotaomicron peut hydrolyser la daidz\u00e9ine, la g\u00e9nist\u00e9ine et la daidz\u00e9ine pour produire de la daidz\u00e9ine, de la g\u00e9nist\u00e9ine et de l'aglycone de glycit\u00e9ine.<\/h5>\r\n\r\n\r\n\r\n<h5 class=\"wp-block-heading\">La glycoside hydrolase a \u00e9galement \u00e9t\u00e9 signal\u00e9e et utilis\u00e9e pour l'hydrolyse d'autres glycosides de flavono\u00efdes (tableau 1). Des \u00e9tudes ont montr\u00e9 que la baicaline a des effets anti-tumoraux et anti-infectieux. La \u03b2-glucosidase isol\u00e9e et purifi\u00e9e \u00e0 partir de Scutellaria viscidula Bge peut hydrolyser la baicaline pour produire de la baicaline. Le produit d\u00e9glycosyl\u00e9, la baicaline, a une meilleure activit\u00e9 pharmacologique. La s\u00e9rimarine est \u00e9galement un glycoside flavono\u00efde rare aux activit\u00e9s antihypertensive et s\u00e9dative, mais elle est difficile \u00e0 obtenir par extraction directe et synth\u00e8se chimique. Cui et al. ont utilis\u00e9 la naringinase pour hydrolyser le rhamnose dans le montanoside afin de produire de la s\u00e9rimarine. En outre, Jassbi et al. ont utilis\u00e9 la \u03b2-glucosidase pour hydrolyser la butrine et produire de la butrine. Les r\u00e9sultats des exp\u00e9riences antioxydantes ont montr\u00e9 que la butrine d\u00e9glycosyl\u00e9e avait une meilleure activit\u00e9 que la butrine. Day et d'autres glycosidases isol\u00e9es et purifi\u00e9es de l'intestin gr\u00eale du mouton peuvent hydrolyser la phlorizine pour produire de la phlor\u00e9tine.<\/h5>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">2. Biotransformation d'autres oxyglycosides<\/h4>\r\n\r\n\r\n\r\n<h5 class=\"wp-block-heading\">Outre les saponines et les glycosides flavono\u00efdes, les glycosides hydrolases ont \u00e9galement \u00e9t\u00e9 utilis\u00e9s pour hydrolyser et modifier d'autres glycosides oxyg\u00e9n\u00e9s (tableau 2). Le fruit du gard\u00e9nia est un m\u00e9dicament traditionnel chinois utilis\u00e9 pour traiter les maladies cardiovasculaires, c\u00e9r\u00e9brovasculaires, du foie et de la v\u00e9sicule biliaire. Les fruits du gard\u00e9nia contiennent beaucoup de g\u00e9niposide, mais l'ingr\u00e9dient efficace est le g\u00e9niposide, qui est le produit d\u00e9glycosyl\u00e9 du g\u00e9niposide, et sa teneur est inf\u00e9rieure \u00e0 0,01%. La \u03b2-glucosidase isol\u00e9e et purifi\u00e9e \u00e0 partir de Penicillium nigricans et d'Aspergillus niger peut \u00eatre transform\u00e9e en g\u00e9niposide pour pr\u00e9parer la g\u00e9nipine afin de r\u00e9pondre \u00e0 la demande de grandes quantit\u00e9s de g\u00e9nipine. Arctium lappa a pour effet de pr\u00e9venir ou de traiter l'insuffisance r\u00e9nale chronique, et ses ingr\u00e9dients efficaces sont l'arctiine et l'arctig\u00e9nine. La \u03b2-glucosidase de Grifola frondosa et de Rhizoctonia solani peut transformer la bardane pour produire de l'arctig\u00e9nine. Liu et al. ont utilis\u00e9 une \u03b2-glucosidase commerciale pour hydrolyser compl\u00e8tement le fruit de la bardane et obtenir le produit aglycon de la bardane. La conversion de l'arctiine en arctig\u00e9nine peut am\u00e9liorer efficacement la biodisponibilit\u00e9. Le resv\u00e9ratrol a pour fonction de pr\u00e9venir les tumeurs et l'ath\u00e9roscl\u00e9rose. La \u03b2-glucosidase isol\u00e9e et purifi\u00e9e \u00e0 partir d'Aspergillus oryzae sp. 100 et de Lactobacillus kimchi, et la \u03b2-glucosidase recombinante clon\u00e9e \u00e0 partir de la m\u00e9tag\u00e9nomique du sol de la mangrove par Mai et al. Le paclitaxel est un m\u00e9tabolite secondaire de la plante Taxus chinensis et a un bon effet th\u00e9rapeutique sur le cancer de l'ovaire et le cancer du sein. Le poids sec du paclitaxel dans Taxus chinensis n'est que de 0,02%, et la teneur en 7-xylose-10-d\u00e9sac\u00e9tylpaclitaxel rejet\u00e9 comme d\u00e9chet est plus de 10 fois sup\u00e9rieure \u00e0 celle du paclitaxel. Dou et al. ont utilis\u00e9 la xylosidase extracellulaire s\u00e9cr\u00e9t\u00e9e par la souche F16 de Cellulosimicrobium cellulans pour convertir le 7-xylose-10-d\u00e9sac\u00e9tylpaclitaxel en 10-d\u00e9sac\u00e9tylpaclitaxel, puis par une r\u00e9action d'acylation en une \u00e9tape pour g\u00e9n\u00e9rer du paclitaxel.<\/h5>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Tableau 2. Biotransformation d'autres O-glycosides par la glycosidase<\/h4>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td>Produit<\/td>\r\n<td>Substrat<\/td>\r\n<td>R\u00e9action<\/td>\r\n<td>Organisme<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Genipin<\/td>\r\n<td>G\u00e9niposide<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Penicillium<\/em><em>\u00a0<\/em><em>nigricans<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Genipin<\/td>\r\n<td>G\u00e9niposide<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Aspergillus<\/em><em>\u00a0<\/em><em>niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Arctig\u00e9nine<\/td>\r\n<td>Arctiin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Grifola<\/em><em>\u00a0<\/em><em>frondosa<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Arctig\u00e9nine<\/td>\r\n<td>Arctiin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Rhizoctone<\/em><em>\u00a0<\/em><em>solani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Arctig\u00e9nine<\/td>\r\n<td>Arctiin<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td>Commercial<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Resv\u00e9ratrol<\/td>\r\n<td>Polydatine<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Aspergillus<\/em><em>\u00a0<\/em><em>oryzae<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Resv\u00e9ratrol<\/td>\r\n<td>Polydatine<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td><em>Lactobacillus<\/em><em>\u00a0<\/em><em>kimchi<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Resv\u00e9ratrol<\/td>\r\n<td>Polydatine<\/td>\r\n<td>\u03b2-Glucosidase<\/td>\r\n<td>Microbes non cultivables<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>10-Deacetylpaclitaxel<\/td>\r\n<td>7-Xylosyl-10-d\u00e9sac\u00e9tylpaclitaxel<\/td>\r\n<td>\u03b2-Xylosidase<\/td>\r\n<td><em>Cellulosimicrobium<\/em><em>\u00a0<\/em><em>cellulose<\/em>s<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">3. Biotransformation des glycosides de carbone et des thioglycosides<\/h4>\r\n\r\n\r\n\r\n<h5 class=\"wp-block-heading\">Outre les oxyglycosides, les glycosides hydrolases sont \u00e9galement utilis\u00e9s dans l'\u00e9tude de la modification par hydrolyse des glycosides de carbone et des thioglycosides (tableau 3). Les glycosides de carbone sont form\u00e9s par condensation de d\u00e9shydratation de l'hydrog\u00e8ne en position ortho ou para activ\u00e9 par le groupe hydroxyle ph\u00e9nolique de l'aglycone avec des groupes de sucre. Les flavono\u00efdes carbosides ont de nombreuses activit\u00e9s, notamment anti-inflammatoires, antibact\u00e9riennes, antitumorales, abaissent le taux de sucre dans le sang et renforcent l'immunit\u00e9. Par rapport aux flavono\u00efdes oxosides, les flavono\u00efdes carbosides ont une plus grande stabilit\u00e9 et peuvent \u00eatre compl\u00e8tement absorb\u00e9s et devenir des mol\u00e9cules m\u00e9dicamenteuses potentielles. Les liaisons glycosidiques du carbone \u00e9tant difficiles \u00e0 hydrolyser, il existe peu de rapports sur l'hydrolyse des flavono\u00efdes glycosides du carbone. Sanugul et al. ont isol\u00e9 une bact\u00e9rie \u00e0 partir d'un m\u00e9lange de bact\u00e9ries f\u00e9cales humaines, qui a s\u00e9cr\u00e9t\u00e9 une glycosidase sous l'induction de la mangif\u00e9rine, qui peut hydrolyser les liaisons carbone glycosidiques dans la mangif\u00e9rine pour produire de la mangif\u00e9rine avec une meilleure activit\u00e9. Nakamura et al. ont isol\u00e9 la souche PUE de bact\u00e9ries intestinales humaines, qui peut isoler et purifier une carboglycosidase qui hydrolyse la pu\u00e9rarine pour produire de l'aglycone. Dans l'\u00e9tude des g\u00e8nes codant pour la carboglycosidase, Braune et al. ont d\u00e9couvert que les g\u00e8nes codant pour les prot\u00e9ines dfgA, dfgB, dfgC, dfgD et dfgE chez Eubacterium cellulosolvens coexpriment des carboglycosidases qui peuvent hydrolyser l'isoorientine pour produire les aglycones correspondants.<\/h5>\r\n\r\n\r\n\r\n<h5 class=\"wp-block-heading\">Les glucosinolates sont une classe importante de compos\u00e9s glucosinolates, largement pr\u00e9sents dans les plantes crucif\u00e8res, telles que la moutarde, le brocoli, l'ail, etc. Des \u00e9tudes ont montr\u00e9 que la consommation de crucif\u00e8res peut pr\u00e9venir efficacement le cancer du sein, le cancer du poumon, le cancer du c\u00f4lon et d'autres cancers. Le principal ingr\u00e9dient actif est l'isothiocyanate produit apr\u00e8s la d\u00e9gradation des glucosinolates. La glucosidase, \u00e9galement connue sous le nom de myrosinase, se trouve principalement dans les plantes crucif\u00e8res, mais elle est r\u00e9partie dans une position diff\u00e9rente de celle des glucosinolates. Ce n'est que lorsque les cellules sont bris\u00e9es qu'elles se m\u00e9langent et r\u00e9agissent. En raison de la faible teneur en myrosinase endog\u00e8ne, il est difficile d'hydrolyser efficacement les glucosinolates pour produire des produits actifs. Le sulforaphane est un isothiocyanate dot\u00e9 d'une activit\u00e9 pharmacologique. Shen et al. ont utilis\u00e9 une myrosinase exog\u00e8ne pour convertir avec succ\u00e8s la glucoraphanine en sulforaphane. \u00c0 l'heure actuelle, il existe peu d'\u00e9tudes sur la modification hydrolytique des glycosides de carbone et des thioglycosides. \u00c0 l'avenir, le d\u00e9veloppement et la modification structurelle d'un plus grand nombre de glycosides de carbone et de thioglycosides fourniront davantage de mol\u00e9cules candidates pour le d\u00e9veloppement de m\u00e9dicaments.<\/h5>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Tableau 3. Biotransformation des C-glycosides et des S-glycosides par la glycosidase.<\/h4>\r\n\r\n\r\n\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td>Produit<\/td>\r\n<td>Substrat<\/td>\r\n<td>R\u00e9action<\/td>\r\n<td>Organisme<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Norathyriol<\/td>\r\n<td>Mangif\u00e9rine<\/td>\r\n<td>Enzyme de clivage des C-glucosyles<\/td>\r\n<td><em>Bacteroides<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Daidzein<\/td>\r\n<td>Pu\u00e9rarine<\/td>\r\n<td>Enzyme de clivage des C-glucosyles<\/td>\r\n<td><em>Humain<\/em><em>\u00a0<\/em><em>intestinal<\/em><em>\u00a0<\/em><em>bact\u00e9rie<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Lut\u00e9oline<\/td>\r\n<td>Homoorientin<\/td>\r\n<td>Enzyme de clivage des C-glucosyles<\/td>\r\n<td><em>Eubacterium<\/em><em>\u00a0<\/em><em>cellulosolvens<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Sulforaphane<\/td>\r\n<td>Glucoraphanine<\/td>\r\n<td>Myrosinase<\/td>\r\n<td><em>Graines de brocoli<\/em><\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n<h2><strong><b>Contactez-nous d\u00e8s maintenant !<\/b><\/strong><\/h2>\r\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<span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span>\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>\r\n<table style=\"border-collapse: collapse; width: 326.27pt;\" border=\"0\" width=\"435\" cellspacing=\"0\" cellpadding=\"0\">\r\n<tbody>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt; width: 164.25pt;\" width=\"219\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/compound-glucoamylase-cas-9032-08-0\/\"><span style=\"color: #00ccff;\">Compos\u00e9 Glucoamylase<\/span><\/a><\/td>\r\n<td class=\"et2\" style=\"width: 162.00pt;\" width=\"216\">9032-08-0<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/pullulanase-cas-9075-68-7\/\"><span style=\"color: #00ccff;\">Pullulanase<\/span><\/a><\/td>\r\n<td class=\"et2\">9075-68-7<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/xylanase-cas-37278-89-0\/\"><span style=\"color: #00ccff;\">Xylanase<\/span><\/a><\/td>\r\n<td class=\"et2\">37278-89-0<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/cellulase-cas-9012-54-8\/\"><span style=\"color: #00ccff;\">Cellulase<\/span><\/a><\/td>\r\n<td class=\"et2\">9012-54-8<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/naringinase-cas-9068-31-9\/\"><span style=\"color: #00ccff;\">Naringinase<\/span><\/a><\/td>\r\n<td class=\"et2\">9068-31-9<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/beta-amylase-cas-9000-91-3\/\"><span style=\"color: #00ccff;\">\u03b2-Amylase<\/span><\/a><\/td>\r\n<td class=\"et2\">9000-91-3<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/glucose-oxidase-cas-9001-37-0\/\"><span style=\"color: #00ccff;\">Glucose oxydase<\/span><\/a><\/td>\r\n<td class=\"et2\">9001-37-0<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\">alpha-amylase<\/td>\r\n<td class=\"et2\">9000-90-2<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/longzyme-acid-pectinase-cas-9032-75-1\/\"><span style=\"color: #00ccff;\">Pectinase<\/span><\/a><\/td>\r\n<td class=\"et2\">9032-75-1<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\">Peroxydase<\/td>\r\n<td class=\"et2\">9003-99-0<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/lipase-cas-9001-62-1\/\"><span style=\"color: #00ccff;\">Lipase<\/span><\/a><\/td>\r\n<td class=\"et2\">9001-62-1<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/catalase-cas-9001-05-2\/\"><span style=\"color: #00ccff;\">Catalase<\/span><\/a><\/td>\r\n<td class=\"et4\">9001-05-2<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/tannase-cas-9025-71-2\/\"><span style=\"color: #00ccff;\">TANNASE<\/span><\/a><\/td>\r\n<td class=\"et2\">9025-71-2<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/elastase-cas-39445-21-1\/\"><span style=\"color: #00ccff;\">Elastase<\/span><\/a><\/td>\r\n<td class=\"et2\">39445-21-1<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/urease-cas-9002-13-5\/\"><span style=\"color: #00ccff;\">Ur\u00e9ase<\/span><\/a><\/td>\r\n<td class=\"et2\">9002-13-5<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/dextranase-cas-9025-70-1\/\"><span style=\"color: #00ccff;\">DEXTRANASE<\/span><\/a><\/td>\r\n<td class=\"et2\">9025-70-1<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.5pt; text-align: left;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/l-lactic-dehydrogenase-cas-9001-60-9\/\"><span style=\"color: #00ccff;\">L-Lactique d\u00e9shydrog\u00e9nase<\/span><\/a><\/td>\r\n<td class=\"et2\">9001-60-9<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/dehydrogenase-malate-cas-9001-64-3\/\"><span style=\"color: #00ccff;\">D\u00e9shydrog\u00e9nase malate<\/span><\/a><\/td>\r\n<td class=\"et2\">9001-64-3<\/td>\r\n<\/tr>\r\n<tr style=\"height: 13.50pt;\">\r\n<td class=\"et2\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/fr\/product\/cholesterol-oxidase-cas-9028-76-6\/\"><span style=\"color: #00ccff;\">Cholest\u00e9rol oxydase<\/span><\/a><\/td>\r\n<td class=\"et2\">9028-76-6<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Actuellement, les glycosides hydrolases sont utilis\u00e9es dans l'\u00e9tude de la pr\u00e9paration d'une vari\u00e9t\u00e9 de glycosides et d'aglycones actifs. Parmi eux, la pr\u00e9paration enzymatique de saponines et de glycosides flavono\u00efdes en oxyglycosides est la plus importante. Apr\u00e8s des ann\u00e9es d'efforts de la part des chercheurs scientifiques, la glycoside hydrolase a obtenu de nombreux r\u00e9sultats gratifiants dans la pr\u00e9paration de [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-4434","post","type-post","status-publish","format-standard","hentry","category-enzyme-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Summary of different glycoside hydrolase reactions - Longchang Chemical Co., Ltd.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/fr\/summary-of-different-glycoside-hydrolase-reactions\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Summary of different glycoside hydrolase reactions - Longchang Chemical Co., Ltd.\" \/>\n<meta property=\"og:description\" content=\"At present, glycoside hydrolases are used in the study of the preparation of a variety of active glycosides and aglycons. 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Among them, the enzymatic preparation of saponin and flavonoid glycosides in oxyglycosides is the most extensive. 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