13.07.2015 Views

Proceedings Volume 2010 (format .pdf) - SimpBTH

Proceedings Volume 2010 (format .pdf) - SimpBTH

Proceedings Volume 2010 (format .pdf) - SimpBTH

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

extracts and rutin, hyperoside, chlorogenic acid, rosmarinic acid and caffeic acidare the main compounds in Lamium purpureum extracts.LamiumalbumextractLa1La2Table 1. Phytochemical composition of Lamium album obtainedby extraction with various types of solventsExtractionsolventMethanol30%Acetone50%Flavonesexpressedas rutin (%)Totalpolyphenolsexpressedcaffeic acid(%)Total polyphenols Total polyphenolsexpressed as expressed asas gallic acid chlorogenic acid(%)(%)0.584 2.591 1.838 4.8060.835 2.89 2.504Table 1 shows the percent of total phenolics (expressed as gallic acid,caffeic acid and chlorogenic acid) and the percent of flavonoids (expressed asrutin) for Lamium album samples obtained by extraction with various types ofsolventLamiumpurpureumextracts4.52Table 2. Phytochemical composition of Lamium purpureum obtainedby extraction with various types of solventsExtractionsolventFlavonesexpressed asrutin (%)Total polyphenolsexpressed as caffeicacid(%)Total polyphenolsexpressed asgallic acid(%)Lp1 Methanol 80% 5.097 5.232 3.83 8.18Totalpolyphenolsexpressed aschlorogenic acid(%)Lp2 Acetone 50% 4.729 5.256 3.54 7.364Table 2 shows the percent of total phenolics (expressed as gallic acid,caffeic acid and chlorogenic acid) and the percent of flavonoids (expressed asrutin) for Lamium purpureum samples obtained by extraction with various types ofsolvents.Acetonic extract La2 (from Lamium album) has the highest composition intotal phenolic and rutin while methanolic extract Lp1 (from Lamium purpureum)has the highest content in total phenolics and rutin.The Lamium purpureum extracts have the highest percent of biologicalcompounds compared with the Lamium album extracts.DPPH Radical Scavenging Activity21

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!