High Performance Liquid Chromatographie Analysis o f Steroidal Saponins from Avena sativa L

نویسندگان

  • J. Kesselmeier
  • D. Strack
چکیده

High Performance Liquid Chromatography (HPLC), Steroidal Saponins, Avena sativa, Etioplasts Reversed phase high performance liquid chromatog­ raphy offers an efficient and rapid method for analysis of steroidal saponins. Crude extracts from primary leaves of Avena sativa and isolated etioplasts therefrom have been resolved into four saponins (avenacosides) using a wateracetonitrile gradient system on RP-8 and monitoring the column effluent at 200 nm with an UV-detector. Detectabil­ ity was found to be in the range of 50 ng avenacoside B and the detector response was linear up to 8 |ig tested. The described method is applicable to studies on localization and physiology of Avena saponins during development of the primary leaf.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A metabolomic study in oats (Avena sativa) highlights a drought tolerance mechanism based upon salicylate signalling pathways and the modulation of carbon, antioxidant and photo-oxidative metabolism.

Although a wealth of information is available on the induction of one or several drought-related responses in different species, little is known of how their timing, modulation and crucially integration influence drought tolerance. Based upon metabolomic changes in oat (Avena sativa L.), we have defined key processes involved in drought tolerance. During a time course of increasing water defici...

متن کامل

The Determination o f Prolamellar Bodies and Saponins in Etioplasts and Leaves o f A vena sativa L

Etioplasts, Prolamellar Bodies, Saponins, Chromatography Prolamellar body tubules in etioplasts are composed mainly of two saponins. The determination of these saponins in leaves, etioplasts or subfractions of etioplasts is re­ commended to evaluate the concentration of these tubules in a given fraction. Using a densitometer after TLC-separation of the saponins measurements are carried out in a...

متن کامل

Partial purification and properties of an inducible uridine 5'-diphosphate-glucose-salicylic Acid glucosyltransferase from oat roots.

A salicylic acid (SA)-inducible uridine 5'-diphosphate (UDP)-glucose:SA 3-O-glucosyltransferase was extracted from oat (Avena sativa L. cv Dal) roots. Reverse phase high-performance liquid chromatography or anion exchange chromatography was used to separate SA from the product, beta-O-d-glucosylsalicylic acid. The soluble enzyme was purified 176-fold with 5% recovery using a combination of pH f...

متن کامل

In vitro antioxidant activity and inhibitory effect, on oleic acid-induced hepatic steatosis, of fractions and subfractions from oat (Avena sativa L.) ethanol extract

Oats (Avena sativa L.) were extracted with 80% aqueous ethanol and the extract was successively isolated by liquid–liquid partition to yield n-hexane, ethyl acetate, n-butanol and water layers. Among them, the ethyl acetate (EA) layer exhibited the highest total phenolic content (TPC), the strongest DPPH radicalscavenging activity and an inhibitory effect on an oleic acid-induced (OA-induced) f...

متن کامل

Characterization of Steroidal Saponins From Two Dioscorea Species Using Liquid Chromatography and the Agilent 6500 Series Accurate-Mass Q-TOF LC/MS Authors

A fast and effective UHPLC/QTOF‐MS method using a simple methanol extraction has been developed to determine the structural characteristics of steroidal saponins from dried rhizomes of two Dioscorea species (D. villosa L. and D. cayenensis Lam.) and dietary supplements. The saponins were identified or tentatively characterized from their retention times and mass spectra and the fragmentation pa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013