Informace o publikaci
Monitoring of HPLC profiles of selected polyphenolic compounds in sea buckthorn (Hippophaë rhamnoides L.) plant parts during annual growth cycle and estimation of their antioxidant potential
| Autoři | |
|---|---|
| Rok publikování | 2014 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Central European Journal of Chemistry |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | http://link.springer.com/article/10.2478%2Fs11532-014-0562-y |
| Doi | http://dx.doi.org/10.2478/s11532-014-0562-y |
| Obor | Analytická chemie, separace |
| Klíčová slova | Polyphenolic compounds; Flavonoids; Sea buckthorn; Total antioxidant activity; Total polyphenolic content |
| Popis | Presented work summarizes the data about polyphenolic profiles in various plant parts (leaves, shoots, berries) of sea buckthorn (Hippophaë rhamnoides L.) during the annual growth cycle. A reversed-phase high performance liquid chromatography method (RP-HPLC) coupled with diode-array detection (DAD) was optimized for determination of catechin, epicatechin, gallic acid, p-coumaric acid, caffeic acid, ferulic acid, rutin (quercetin 3-rutinoside) and quercitrin (quercetin 3-rhamnoside). The content of these polyphenolic compounds was monitored in extracts of sea buckthorn plant samples from April to October. The total antioxidant activity was determined using scavenging of 2,2-azino-bis(3-ethylbenzothiazoline-6-sulphonate) cation radical (ABTS·+) and 1,1-diphenyl-2-picrylhydrazyl radical (DPPH·). The total content of polyphenols was estimated by conventional spectrophotometric method using Folin-Ciocalteu reagent. The monitoring of temporal changes of selected polyphenolic compounds by RP-HPLC showed that catechin, epicatechin and gallic acid were the most abundant analytes in annual green shoots and leaves, and their content varied significantly during the studied period. |