Türkiye’nin Artvin ve Giresun bölgelerindeki Kantaron (Hypericum montbretii ve Hypericum bupleuroides) ve Karaçalı (Paliurus spina-christi Mill) bitkilerinin antioksidan ve antimikrobiyal aktivitelerinin karşılaştırılması

Öz

Özet

Tıbbi ve aromatik bitkilerden olan Kantaron (Hypericum montbretii ve Hypericum bupleuroides) ve karaçalı (Paliurus spina-christi Mill) bitkilerinin yaprak, çiçek ve kök gibi kısımlarından oluşan 13 farklı örneğin antioksidan aktivitesi DPPH, FRAP ve CUPRAC yöntemleri kulanılarak incelenmiştir. Aynı zamanda bitki ekstraktların toplam fenolik ve toplam flavonoid miktarları da ölçülmüş ve antimikrobiyal özellikleri de belirlenmiştir. Antioksidan aktivite sonuçlarına göre tüm analizler içinde (toplam polifenol miktar analizi hariç) en iyi aktivite Kantaron (Hypericum montbretii) bitkisinin kuru yaprağında olduğu bulunmuştur. Toplam polifenol analizine göre ise en yüksek aktivitenin 22.485±0.656 mg GAE /g değeri ile Kantaron’un (Hypericum montbretii) çiçek kısmına ait olduğu görülmüştür. Antimikrobiyal analizler ise disk düfüzyon yöntemi kullanılarak yapılmış ve bitki ekstraktlarının 12 tane test mikrorganizması üzerine etkisi incelenmiştir. Bu sonuçlara göre bitkilerden çoğunun bakterilere ve mantar suşlarına karşı iyi derecede aktivite gösterdiği gözlenmiştir.

Anahtar Kelimeler

• Kantaron,Karaçalı,DPPH,FRAP,antioksidan

Proje Numarası

BAP: 2014.F11.02.04

Comparison of antioxidant and antimicrobial activities of plant extracts Centaury (Hypericum montbretii and Hypericum bupleuroides) and Blackthorn (Paliurus spina-christi Mill) in Artvin, Giresun region of Turkey

Öz

Abstract

Antioxidant activity 13 different samples of medicinal and aromatic plants of Centaury (Hypericum montbretii), Centaury (Hypericum bupleuroides), Blackthorn (Paliurus spina-christi Mill), including leaf, flower and stem, was investigated using DPPH, FRAP and CUPRAC methods. Total flavonoid, total phenolic amount and the antibacterial features of extracts from these herbs were also determined. According to the obtained of antioxidant datas, except for the result of total polyphenol assay, the dried leaves of Centuary (Hypericum montbretii) had the best antioxidant property that was realized in all results. Accordingly test of total polyphenol, the content of yellow flower of Centuary (Hypericum montbretii) herb was measured as of 22.48±0.66 mg GAE /g dry herb sample and so this herb had the highest total phenolic content. Antimicrobial activity tests were carried out using disc diffusion methods with 12 microbial species and the most of them displayed good-moderate antimicrobial and antifungal activity.

Anahtar Kelimeler

• Centaury,Blackthorn,DPPH,FRAP,antioxidant

Destekleyen Kurum

Artvin Coruh University

Proje Numarası

BAP: 2014.F11.02.04

Teşekkür

This work was supported by Artvin Coruh University, BAP (2014.F11.02.04), Turkey. The authors also would like to thank Emine Sönmez for performing the antimicrobial screening studies and also Ozgur Eminagaoglu, Hayal Akyıldırım Begen, Guven Aksu for participating in the plant selection and collection.

Kaynakça

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