{"id":4429,"date":"2021-03-09T14:01:53","date_gmt":"2021-03-09T14:01:53","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4429"},"modified":"2026-04-28T10:41:48","modified_gmt":"2026-04-28T10:41:48","slug":"biotransformation-of-saponins","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/biotransformation-of-saponins\/","title":{"rendered":"Biotrasformazione delle saponine"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Le saponine sono una classe di glicosidi in cui gli agliconi sono composti triterpenici o steranici. Sono uno degli ingredienti efficaci di molti farmaci erboristici cinesi, come il ginseng, la liquirizia e l'igname (la struttura principale delle saponine \u00e8 mostrata nella Figura 1). Migliorano l'immunit\u00e0 e altre funzioni. In letteratura esistono numerosi rapporti sulla biotrasformazione dei ginsenosidi. Attualmente sono stati separati e identificati pi\u00f9 di 150 tipi di ginsenosidi. I contenuti dei ginsenosidi Rb1, Rb2, Rc, Rd, Re e Rg1 sono pari a 80%, mentre i contenuti dei ginsenosidi Rg3, Rh2, F2 e del composto K (C-K) e di altre saponine rare sono scarsi o nulli. Gli studi hanno dimostrato che alcune saponine rare hanno buone attivit\u00e0 farmacologiche. Tuttavia, a causa del basso contenuto, la preparazione e la produzione sono limitate. Lo stesso tipo di ginsenoside ha lo stesso aglicone, ma la catena di zuccheri \u00e8 diversa. I ginsenosidi rari e il contenuto pi\u00f9 elevato dello stesso tipo di saponine spesso differiscono solo per 2 o 3 gruppi di zucchero. Pertanto, lo stesso tipo di saponina rara attiva pu\u00f2 essere preparato mediante idrolisi enzimatica della saponina ad alto contenuto.<\/h4>\n\n<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> A practical enzyme or food-ingredient decision starts with the process target, then checks activity, application window, sensory impact, and batch-to-batch consistency before scale-up.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"554\" height=\"116\" class=\"wp-image-4430\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/03\/image.png\" alt=\"\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/03\/image.png 554w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2021\/03\/image-300x63.png 300w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><\/figure>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Figura 1. Struttura delle principali saponine<\/h4>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Le diverse idrolasi glicosidiche hanno diverse selettivit\u00e0 e anche le vie di idrolizzazione dei ginsenosidi sono diverse. Come mostrato nella Tabella 1, diverse idrolasi glicosidiche possono essere utilizzate per preparare diversi ginsenosidi rari. Il ginsenoside Rd pu\u00f2 essere preparato idrolizzando i ginsenosidi Rb1, Rb2, Rb3 e il gruppo zuccherino esterno C-20 di Rc. La \u03b2-glucosidasi isolata e purificata dalla lumaca di giada bianca cinese e dal Thermus caldophilus pu\u00f2 convertire il ginsenoside Rb1 in Rd. Kim et al. l'hanno ottenuta da microrganismi del suolo utilizzando la tecnologia del clonaggio molecolare per convertire il ginsenoside Rb1, che \u00e8 la glicoside idrolasi ricombinante di Rd. Successivamente, i ricercatori hanno clonato la glucosidasi da Thermotoga thermarum e Bifidobacterium longum H-1, migliorando l'efficienza della trasformazione e della preparazione del ginsenoside Rd. La glucosidasi ottenuta da Flavobacterium johnsoniae e Thermus thermophilus mediante tecnologia ricombinante pu\u00f2 non solo convertire il ginsenoside Rb1 in Rd, ma anche idrolizzare la catena di zuccheri C-20 del Gypenoside XVII (G17) per produrre il ginsenoside F2. Oltre alla glucosidasi, l'\u03b1-L-arabinofuranoside idrolasi che pu\u00f2 convertire il ginsenoside Rc in Rd \u00e8 stata ottenuta dalla radice di ginseng e da Leuconostoc sp. L'\u03b1-L-arabinofuranoside idrolasi e l'\u03b1-L-arabinopiranoside idrolasi sono state ottenute da Bifidobacterium breve e Bifidobacterium longum, che possono trasformare i ginsenosidi Rc e Rb2 in Rd. In letteratura \u00e8 stato riportato che l'\u03b1-L-arabinofuranoside idrolasi di Caldicellulosiruptor saccharolyticus e Rhodanobacter ginsenosidimutans pu\u00f2 non solo idrolizzare il ginsenoside Rc in Rd, ma anche convertire il composto Mc1 (C-Mc1) in F2. L'idrolasi glicosidica isolata e purificata da Aspergillus da Yu et al. pu\u00f2 convertire tutti i ginsenosidi Rb1, Rb2, Rb3 e Rc in Rd. Alcune idrolasi glicosidiche possono idrolizzare completamente le catene di zucchero in posizione C-20 in molecole come i ginsenosidi di tipo glicolico Rb1, Rb2, Rb3, Rc e Rd, per generare il ginsenoside Rg3, che consente la produzione su larga scala di Rg3 e viene sviluppato come farmaco agente antitumorale. La glucosidasi di Paecilomyces bainier e Microbacterium esteraromaticum pu\u00f2 idrolizzare direttamente il ginsenoside Rb1 in Rg3, mentre la glucosidasi isolata e purificata da Microbacterium esteraromaticum pu\u00f2 idrolizzare il ginsenoside Rb2 in Rg3. La glicoside idrolasi ricombinante clonata da Pseudonocardia mediante la tecnologia del clonaggio molecolare pu\u00f2 trasformare i ginsenosidi Rb1, Rb3 e Rd per preparare Rg3. Analogamente, una serie di ginsenosidi rari attivi pu\u00f2 essere preparata idrolizzando il gruppo zuccherino in posizione C-3 nei ginsenosidi. La glucosidasi ricombinante clonata da Sphingomonas e Sphingopyxis alaskensis pu\u00f2 idrolizzare il glucosio all'esterno della catena di zuccheri in posizione C-3 nelle molecole di ginsenoside Rb1, Rb2, Rc, Rd e Rg3 e preparare G17, il composto O (CO) e C-Mc1, F2 e Rh2. Alcune glicosidasi possono idrolizzare direttamente il gruppo glucosilico interno alla posizione C-3. Ad esempio, la glucosidasi di Terrabacter ginsenosidimutans e di Esteya vermicola pu\u00f2 idrolizzare la catena di zuccheri in posizione C-3 delle molecole di ginsenoside Rb1, Rb2, Rb3, Rc e Rd per produrre la corrispondente saponina LXXV (G75), il composto Y (C-Y), il composto Mx (C-Mx), il composto Mc (C-Mc) e C-K. Inoltre, alcune idrolasi glicosidiche possono idrolizzare simultaneamente i gruppi zuccherini C-20 e C-3 dei ginsenosidi di tipo glicolico. La glucosidasi ricombinante clonata da Arthrobacter chlorophenolicus pu\u00f2 convertire i ginsenosidi Rb1, Rb2 e Rc in F2. La glicoside idrolasi di Fusobacterium K60, dei funghi endofiti GE 17-18, Sulfolobus acidocaldarius, Aspergillus niger e Microbacteriu esteraromaticum pu\u00f2 idrolizzare il ginsenoside Rb1 per produrre C-K.<\/h4>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Tabella 1. Biotrasformazione dei ginsenosidi da parte delle glicosidasi<\/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>Prodotto<\/td>\r\n<td>Substrato<\/td>\r\n<td>Reazione<\/td>\r\n<td>Organismo<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td>Lumaca di giada bianca cinese<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Thermus<\/em><em>\u00a0<\/em><em>caldophilus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td>Batteri non coltivati<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Termotoga<\/em><em>\u00a0<\/em><em>thermarum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Bifidobacterium<\/em><em>\u00a0<\/em><em>longum<\/em><em>\u00a0<\/em>H-1<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Flavobacterium<\/em><em>\u00a0<\/em><em>johnsoniae<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Thermus<\/em><em>\u00a0<\/em><em>thermophilus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Penicillium<\/em><em>\u00a0<\/em><em>ossalico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Cladosporium<\/em><em>\u00a0<\/em><em>fulvum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Panax<\/em><em>\u00a0<\/em><em>ginseng<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Leuconostoc<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Bifidobacterium<\/em><em>\u00a0<\/em><em>breve<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Bifidobacterium<\/em><em>\u00a0<\/em><em>longum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Caldicellulosiruptor<\/em><em>\u00a0<\/em><em>saccarolitico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Rhodanobacter<\/em><em>\u00a0<\/em><em>ginsenosidimutani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb2<\/td>\r\n<td>\u03b1-L-Arabinopiranosidasi<\/td>\r\n<td><em>Bifidobacterium<\/em><em>\u00a0<\/em><em>breve<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb2<\/td>\r\n<td>\u03b1-L-Arabinopiranosidasi<\/td>\r\n<td><em>Bifidobacterium<\/em><em>\u00a0<\/em><em>longum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rd<\/td>\r\n<td>Rb1\/Rb2\/Rb3\/Rc<\/td>\r\n<td>Glicosidasi<\/td>\r\n<td><em>Aspergillo<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg3<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Paecilomyces<\/em><em>\u00a0<\/em><em>bainier<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg3<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Microbatterio<\/em><em>\u00a0<\/em><em>esteraromatico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg3<\/td>\r\n<td>Rb2<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Microbatterio<\/em><em>\u00a0<\/em><em>esteraromatico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg3<\/td>\r\n<td>Rb1\/Rb3\/Rd<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Pseudonocardia<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>G17<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Sfingomonas<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>G17<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Sfingopessi<\/em><em>\u00a0<\/em><em>alaskensis<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>G17<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Cellulosimicrobium<\/em><em>\u00a0<\/em><em>cellulani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>G75<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Terrabacter<\/em><em>\u00a0<\/em><em>ginsenosidimutani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>G75<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Esteya<\/em><em>\u00a0<\/em><em>vermicola<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F2<\/td>\r\n<td>G17<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Flavobacterium<\/em><em>\u00a0<\/em><em>johnsoniae<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F2<\/td>\r\n<td>G17<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Thermus<\/em><em>\u00a0<\/em><em>thermophilus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F2<\/td>\r\n<td>C-Mc<sub>1<\/sub><\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Caldicellulosiruptor<\/em><em>\u00a0<\/em><em>saccarolitico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F2<\/td>\r\n<td>C-Mc<sub>1<\/sub><\/td>\r\n<td>\u03b1-L-Arabinofuranosidasi<\/td>\r\n<td><em>Rhodanobacter<\/em><em>\u00a0<\/em><em>ginsenosidimutani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F2<\/td>\r\n<td>Rd<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Cellulosimicrobium<\/em><em>\u00a0<\/em><em>cellulani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F2<\/td>\r\n<td>Rb1\/Rb2\/Rc<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Artrobacter<\/em><em>\u00a0<\/em><em>clorofenolico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rh2<\/td>\r\n<td>Rg3<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Sfingopessi<\/em><em>\u00a0<\/em><em>alaskensis<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rd<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Terrabacter<\/em><em>\u00a0<\/em><em>ginsenosidimutani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rd<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Esteya<\/em><em>\u00a0<\/em><em>vermicola<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Fusobacterium<\/em><em>\u00a0<\/em>K-60<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rb1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td>funghi endofiti GE 17-18<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rb1\/Rb2<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Sulfolobus<\/em><em>\u00a0<\/em><em>acidocaldario<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rb1\/Rb2\/Rb3\/Rc<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Aspergillo<\/em><em>\u00a0<\/em><em>niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>CK<\/td>\r\n<td>Rb1\/Rb2<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Microbacteriu<\/em><em>\u00a0<\/em><em>esteraromatico<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>C-O<\/td>\r\n<td>Rb2<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Cellulosimicrobium<\/em><em>\u00a0<\/em><em>cellulani<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>C-Y<\/td>\r\n<td>Rb2<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Terrabacter ginsenosidimutans<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>C-Mc<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Terrabacter ginsenosidimutans<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>C-Mc1<\/td>\r\n<td>Rc<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Cellulosimicrobium cellulans<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>C-Mx<\/td>\r\n<td>Rb3<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Terrabacter ginsenosidimutans<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg2<\/td>\r\n<td>Re<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Microbacterium esteraromaticum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg2<\/td>\r\n<td>Re<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Mucilaginibacter<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rg2<\/td>\r\n<td>Re<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Pseudonocardia<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rh1<\/td>\r\n<td>Rg1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Microbacterium esteraromaticum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rh1<\/td>\r\n<td>Rf<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Pyrococcus furiosus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rh1<\/td>\r\n<td>Rf<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Aspergillus niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rh1<\/td>\r\n<td>Rg2<\/td>\r\n<td>\u03b1-L-Ramnosidasi<\/td>\r\n<td><em>Absidia<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Rh1<\/td>\r\n<td>R2<\/td>\r\n<td>\u03b2-Xilosidasi<\/td>\r\n<td><em>Termoanaerobatterio<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F1<\/td>\r\n<td>Rg1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Fusarium moniliforme<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F1<\/td>\r\n<td>Rg1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Penicillium sclerotiorum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>F1<\/td>\r\n<td>Rg1<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Sanguibacter keddieii<\/em><\/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\">G17: gypenoside XVII; G75: gypenoside LXXV; C-O: composto O; C-Y: composto Y; C-Mc1: composto Mc1; C-Mc: composto Mc; C-Mx: composto Mx; C-K: composto K.<\/h4>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Anche i gruppi zuccherini C-6 e C-20 dei ginsenosidi triolo possono essere idrolizzati dalle idrolasi glicosidiche. Il ginsenoside Rg2 pu\u00f2 essere ottenuto idrolizzando il glucosio C-20 della molecola Re mediante glicosidasi. La glucosidasi ricombinante clonata da Microbacterium esteraromaticum, Mucillaginibacter e Pseudonocardia non solo pu\u00f2 convertire il ginsenoside Re in Rg2, ma anche il ginsenoside Rg1 viene convertito in Rh1. Il glucosio, il ramnosio e lo xilosio al di fuori della posizione C-6 del ginsenoside Rf, Rg2 e R2 possono essere convertiti per preparare Rh1. A differenza del ginsenoside Rh1, il ginsenoside F1 ha solo un glucosio attaccato alla posizione C-20 del suo aglicone. Le glucosidasi di Fusarium moniliforme, Penicillium sclerotiorum e Sanguibacter keddieii possono idrolizzare in modo specifico il glucosio C-6 del ginsenoside Rg1 per produrre il ginsenoside F1.<\/h4>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">La glicoside idrolasi non \u00e8 utilizzata solo per trasformare e preparare ginsenosidi rari attivi, ma \u00e8 anche ampiamente utilizzata per idrolizzare e modificare saponine come quelle della liquirizia, della soia e dell'igname (Tabella 2). La glucuronidasi isolata e purificata da Streptococcus LJ-22 e Penicillium purpurogenum Li-3 \u00e8 in grado di idrolizzare la glicirrizina per produrre acido glicirretico monoglucuronico, senza alcun sottoprodotto di acido glicirretinico. Morana et al. hanno utilizzato una glucuronidasi derivata da Aspergillus niger per idrolizzare completamente la glicirrizina e produrre acido glicirretinico. L'idrolasi della saponina di soia isolata e purificata da Aspergillus oryzae \u00e8 in grado di idrolizzare la saponina di soia I per produrre il saponolo di soia B. Una nuova idrolasi della saponina di soia in Neocosmospora vasinfecta \u00e8 in grado di convertire le saponine di soia I, II e III in saponina di soia B, che fornisce uno strumento efficace per la preparazione della saponina di soia con propriet\u00e0 antiossidanti e di regolazione dei lipidi nel sangue. Tra le saponine steroidee, la ricerca e il confronto della modifica dell'idrolisi della catena di zuccheri della dioscina sono sistematici. Inoue et al. hanno isolato e purificato una glucosidasi da Costus speciosus in grado di idrolizzare la diosgenina originale per produrre diosgenina. Liu et al. hanno isolato, purificato e clonato da Aspergillus oryzae una dioscina idrolasi ricombinante, in grado di idrolizzare i gruppi glucosilici e \u03b1-1,4 ramnosilici della dioscina per produrre dioscina III. L'\u03b1-L-rhamnosidasi isolata e purificata da Feng et al. da Curvularia lunata pu\u00f2 idrolizzare il gruppo ramnosilico \u03b1-1,2 nella dioscina per produrre la dioscina V. Qian et al. hanno isolato e purificato un'\u03b1-L-rhamnosidasi da fegato fresco di manzo, che pu\u00f2 idrolizzare i due gruppi ramnosilici \u03b1-1,2 e \u03b1-1,4 nella diosgenina per formare un gruppo glucosilico. -Diosgenina. Fu et al. hanno isolato e purificato la diosgenina idrolasi dall'Absidia, che pu\u00f2 idrolizzare completamente la diosgenina in diosgenina.<\/h4>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Tabella 2. Biotrasformazione di altre saponine mediante glicosidasi<\/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>Prodotto<\/td>\r\n<td>Substrato<\/td>\r\n<td>Reazione<\/td>\r\n<td>Organismo<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>GAMG<\/td>\r\n<td>Glicirrizina<\/td>\r\n<td>\u03b2-Glucuronidasi<\/td>\r\n<td><em>Streptococco<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>GAMG<\/td>\r\n<td>Glicirrizina<\/td>\r\n<td>\u03b2-Glucuronidasi<\/td>\r\n<td><em>Penicillium purpurogenum<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Acido glicirretico<\/td>\r\n<td>Glicirrizina<\/td>\r\n<td>\u03b2-Glucuronidasi<\/td>\r\n<td><em>Aspergillus niger<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Soiasapogenolo B<\/td>\r\n<td>Soiasaponina I<\/td>\r\n<td>Saponina idrolasi di soia<\/td>\r\n<td><em>Aspergillus oryzae<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Soiasapogenolo B<\/td>\r\n<td>Soiasaponina<\/td>\r\n<td>Saponina idrolasi di soia<\/td>\r\n<td><em>Neocosmospora vasinfecta<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Dioscina<\/td>\r\n<td>Protodioscina<\/td>\r\n<td>\u03b2-Glucosidasi<\/td>\r\n<td><em>Costus speciosus<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Progenina III<\/td>\r\n<td>Protodioscina<\/td>\r\n<td>Protodioscina glicosidasi<\/td>\r\n<td><em>Aspergillus oryzae<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Progenina V<\/td>\r\n<td>Dioscina<\/td>\r\n<td>\u03b1-L-Ramnosidasi<\/td>\r\n<td><em>Curvularia lunata<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Diosgenil-glucoside<\/td>\r\n<td>Dioscina<\/td>\r\n<td>\u03b1-L-Ramnosidasi<\/td>\r\n<td><em>Fegato bovino<\/em><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Diosgenina<\/td>\r\n<td>Dioscina<\/td>\r\n<td>Dioscina-glicosidasi<\/td>\r\n<td><em>Absidia<\/em><\/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\">GAMG: mono-glucuronide dell'acido glicirretico<\/h4>\n\n<!-- lc-commercial-start -->\n<h2>A practical sourcing checklist for enzyme, biotech, and food-ingredient topics<\/h2>\n<p>In enzyme and food-processing projects, the most useful decision frame is usually application fit plus process stability: which ingredient performs under the intended pH, temperature, time, and substrate conditions without creating a downstream quality or compliance problem.<\/p>\n<ul>\n<li><strong>Define the processing target first:<\/strong> flavor, hydrolysis, texture, fermentation, cleaning, and bioprocess applications often need very different activity profiles.<\/li>\n<li><strong>Check the real operating window:<\/strong> pH, temperature, residence time, and substrate type often matter more than a headline product claim.<\/li>\n<li><strong>Review consistency and downstream impact:<\/strong> dosage, sensory influence, filtration, and shelf-life behavior can all affect the final commercial value.<\/li>\n<li><strong>Use pilot validation:<\/strong> small production tests usually reveal the most useful differences in activity, efficiency, and process fit.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/lipase-cas-9001-62-1\/\">Longzyme Lipase<\/a>:<\/strong> A direct product reference for lipase-related food, cleaning, or bioprocess discussions.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/beta-amylase-cas-9000-91-3\/\">Longzyme Beta-Amylase<\/a>:<\/strong> A practical enzyme reference when starch conversion and food-processing activity are under review.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/compound-glucoamylase-cas-9032-08-0\/\">Longzyme Compound Glucoamylase<\/a>:<\/strong> A useful enzyme reference when saccharification or related processing performance matters.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/yeast-extract-cas-8013-01-2\/\">Estratto di lievito<\/a>:<\/strong> A practical ingredient reference when flavor, fermentation, or nutrient-support applications are involved.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why is a high-activity enzyme not automatically the best commercial choice?<\/strong><br \/>Because the best enzyme is the one that performs reliably under the actual process conditions and gives the desired downstream result without creating new issues.<\/p>\n<p><strong>Should food and biotech ingredients be selected from data sheets alone?<\/strong><br \/>It is usually safer to pair the specification review with a pilot or application test because real substrates and process windows can change the result a lot.<\/p>\n<!-- lc-commercial-end -->\n\n<h2><strong><b>Contattateci ora!<\/b><\/strong><\/h2>\r\n<h4><strong><b>Se avete bisogno di Price, inserite i vostri dati di contatto nel modulo sottostante; di solito vi contatteremo entro 24 ore. Potete anche inviarmi un'e-mail\u00a0<span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span>\u00a0durante l'orario di lavoro (dalle 8:30 alle 18:00 UTC+8 lun.-sab.) o utilizzare la live chat del sito web per ottenere una risposta immediata.<\/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\/it\/product\/compound-glucoamylase-cas-9032-08-0\/\"><span style=\"color: #00ccff;\">Composto Glucoamilasi<\/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\/it\/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\/it\/product\/xylanase-cas-37278-89-0\/\"><span style=\"color: #00ccff;\">Xilanasi<\/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\/it\/product\/cellulase-cas-9012-54-8\/\"><span style=\"color: #00ccff;\">Cellulasi<\/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\/it\/product\/naringinase-cas-9068-31-9\/\"><span style=\"color: #00ccff;\">Naringinasi<\/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\/it\/product\/beta-amylase-cas-9000-91-3\/\"><span style=\"color: #00ccff;\">\u03b2-amilasi<\/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\/it\/product\/glucose-oxidase-cas-9001-37-0\/\"><span style=\"color: #00ccff;\">Glucosio ossidasi<\/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\">alfa-amilasi<\/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\/it\/product\/longzyme-acid-pectinase-cas-9032-75-1\/\"><span style=\"color: #00ccff;\">Pectinasi<\/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\">Perossidasi<\/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\/it\/product\/lipase-cas-9001-62-1\/\"><span style=\"color: #00ccff;\">Lipasi<\/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\/it\/product\/catalase-cas-9001-05-2\/\"><span style=\"color: #00ccff;\">Catalasi<\/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\/it\/product\/tannase-cas-9025-71-2\/\"><span style=\"color: #00ccff;\">TANNASIO<\/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\/it\/product\/elastase-cas-39445-21-1\/\"><span style=\"color: #00ccff;\">Elastasi<\/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\/it\/product\/urease-cas-9002-13-5\/\"><span style=\"color: #00ccff;\">Ureasi<\/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\/it\/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\/it\/product\/l-lactic-dehydrogenase-cas-9001-60-9\/\"><span style=\"color: #00ccff;\">L-lattico deidrogenasi<\/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\/it\/product\/dehydrogenase-malate-cas-9001-64-3\/\"><span style=\"color: #00ccff;\">Deidrogenasi malato<\/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\/it\/product\/cholesterol-oxidase-cas-9028-76-6\/\"><span style=\"color: #00ccff;\">Colesterolo ossidasi<\/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>Saponins are a class of glycosides in which aglycones are triterpene or sterane compounds. They are one of the effective ingredients of many Chinese herbal medicines such as ginseng, licorice<\/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-4429","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>Biotransformation of saponins - Longchang Chemical Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Saponins are a class of glycosides in which aglycones are triterpene or sterane compounds. 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