Research on Dynamic Accumulation of Nine Ginsenosides and Two Pseudo-ginsenosides of Panax quinquefolium Root of Different Growth Years and Harvest Months in Canada
Notice bibliographique
Résumé
Objective: To research the dynamic accumulation of ginsenosides Rg1,Re,Rb1,Rg2,Rc,Rb2,Rb3,Rd,Rg3 and pseudo-ginsenosides F11,RT5,which was grown from one-to five-year-old and harvested from May to September of Panax quinquefolium root in Canada. Methods: RP-HPLC-ELSD was adopted. The analysis was performed on a Dimaonsil C18(250 mm × 4. 6 mm,5 μm) column,the mobile phase was acetonitrile(A)-deionized water(B) in gradient elution mode. The flow rate was 1. 0 m L/min and column temperature was set at 30 ℃. The carrier gas was nitrogen with flow rate of 2. 8 L/min,the drift tube temperature was 100 ℃,and the injection volume was 10 μL. The principle component analysis and cluster analysis of SPSS software(version 19. 0) were conducted for the data analysis. Results: The RP-HPLC-ELSD method for determining simultaneously nine ginsenosides and two pseudo-ginsenosides was established. The total content of ginsenosides of one- to two-year-old was low and increased from May to September in each year. That of three- to five-year-old declined from June to July and increased from August,and was the highest in September of three- to five-year-old samples. The total content from September of three-year-old samples was similar. The content of nine ginsenosides and two pseudo-ginsenosides was relatively high in all the samples except ginsenoside Rc,which wasn't determined in some samples. The ginsenosides Rd,Rb3 and pseudo-ginsenoside F11 were higher than others. The principle component analysis results showed that ginsenosides Rg1,Re,Rb1,Rc,Rb2,Rb3,Rg3 and pseudo-ginsenosides F11,RT5 could be the characteristic ginsenosides of Panax quinquefolium root in Canada. The cluster analysis indicated that the chemical constituent and dynamic accumulation of ginsenosides of one- to two-year-old was similar except the sample of July of four-year-old and there was no obvious difference of three- to five-year-old. Conclusion: With the consideration of the content of ginsenoside,cultivation cost of four-to five-year-old,and risk of waterlogging and plant diseases,it is suggested that Panax quinquefolium root from September of three-year-old can be regarded as the same quality.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».