ANTIOXIDANT CAPACITY OF SANGUISORBA OFFICINALIS L. AND SANGUISORBA MINOR SCOP

Abstract

Rosaceae is one of the important families with a variety of diversified plant species which grows in the north temperate zone and occurs in a wide variety of habitats. Moreover, Sanguisorba spp. is very good frost tolerant. The aim of our study is to investigated total phenols content (using Folin-Ciocalteu method), and antioxidant capacity, (using two methods, i.e. DPPH and FRAP), of ethanolic extracts from stem, flowers, leaves, and roots of Sanguisorba officinalis and Sanguisorba minor. The total phenols content was higher in S. officinalis root (8.56 mg GAE/g dry weight (dw)), followed by S. officinalis leaves (2.80 mg GAE/g dw), S. officinalis stem (0.59 mg GAE/g dw), S. officinalis flowers (0.41 mg GAE/g dw) compared to S. minor root (3.89 mg GAE/g dw), followed by S. minor leaves (1.19 mg GAE/g dw), S. minor stem (0.19 mg GAE/g dw). The highest DPPH-scavenging capacity was recorded for root extracts, i.e. 94.61 % for S. officinalis and 92.93 % and S. minor roots respectively. The lowest Radical Scavenging Activity (RSA)% was recorded in descending order among S. officinalis leaves (71.83%), flowers (20.73%) and stem (18.22 %). The lowest RSA (%) for S. minor was recorded in descending order among stem (43.16 %) and leaves (0.32%). These results suggest that the roots of Sanguisorba species are likely to have high antioxidant capacity. Based on our results, Sanguisorba spp. can be used as medicinal plants with antioxidant properties.

Keywords

• sanguisorba officinalis
• sanguisorba minor
• rosaceae
• dpph
• frap
• total phenols content