Polyporus Squamosus Mantar Özütünün Antioksidan Enzimler Üzerinde Etkisi
Loading...
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Open Access Color
OpenAIRE Downloads
OpenAIRE Views
Abstract
Doğal antioksidan kaynakları bulmak için son zamanlarda artarak oluşan bir ilgi mantarlar üzerinde geniş kapsamda çalışmaların yapılmasına yol açmıştır. Bu çalışmada Polyporus squamosus mantar özütünün toplam fenol ve flavonoid içerikleri incelenmiştir. Sonra radikal süpürücü etkisi DPPH serbest radikali kullanarak test edilmiştir ve son olarak Polyporus squamosus mantarın etkisi Katalaz (KAT), süperoksit dismutaz (SOD) ve Glutathione-S-transferaz (GST) enzimleri üzerinde test edilmiştir. Bu çalışma da, soğuk su, sıcak su, metanol ve etanol kullanarak dört farklı mantar özütü hazırlanmıştır. Soğuk su özütünün en yüksek toplam fenol ve flavonoid içeriğine sahip olduğu saptanmıştır (sırasıyla 223,60 µg GAE/ml ve 61,25 µg KE/ml). Bu nedenle bir sonraki deneyler için soğuk su özütü kullanılmıştır. Elde edilen sonuçlara göre, mantar özütünün radikal süpürücü etkisi gallik asit ve quersetin standartları kullanarak %35 ve IC50 değeri 20,55 g/l olarak nispeten düşüktür. Polyporus squamosus özütün antioksidan özellikleri değerlendirmek için, KAT, SOD, GST enzimleri üzerindeki etkinliği incelenmiştir. Sonuçlar göstermiştir ki kontrole göre Polyporus squamosus mantarının soğuk su özütü KAT üzerinde % 60 aktivasyon göstermiş ve IC50 değeri ise 2,810 g/l olarak hesaplanmıştır. SOD enzimi üzerinde % 95 oranda aktivasyon gösteren mantarın IC50 değeri de 11,94 g/l olarak hesaplanmıştır. Bu çalışmada Polyporus squamosus mantarının GST üzerine hemen hemen hiç etkisi olamadığı ve kontrole göre ancak % 7.2 ve IC50 değerinde 1.089 g/l olarak bir inhibasyon yaptığı bulunmuştur.
Recently, an increasing interest in searching natural antioxidant sources has led to extensive studies on mushrooms. In this study, Polyporus squamosus was examined for determination of its total phenolic and flavonoid contents. The free radical scavenging property was then evaluated by DPPH assay and finally the effect of Polyporus squamousus was tested on catalase (CAT), superoxide dismutase (SOD) and glutathione- S-transferase (GST). In this study, four different mushroom extracts have been prepared using cold water, hot water, methanol, and ethanol. It was observed that cold water extract resulted in the highest contents of total phenolic and flavonoid (as 223.60 µg GAE /ml and 61.25 µg QE /ml respectively), Therefore, the cold water extract was used for further experiments. Based on the results obtained, it was found that DPPH radical scavenging capacity of mushroom extract is relatively low with 35% and IC50 value was 20.55 g/l with respect to quercetin and gallic acid as standards. In order to evaluate the antioxidant property of Polyporus squamosus extract, its effect on catalase, superoxide dismutase and glutathione-S-transferase was observed. It was found that the cold water extract of Poluporus squamosus had about 60% activation on catalase with respect to control and IC50 value of 2.810 g/l and surprisingly it had an activation effect as high as 95% and IC50 value was 11.94 g/l on SOD but nearly no effect on inhibition of GST with the inhibitory percent with respect to control found to be just around 7.2% and IC50 value was 1.089 g/l.
Recently, an increasing interest in searching natural antioxidant sources has led to extensive studies on mushrooms. In this study, Polyporus squamosus was examined for determination of its total phenolic and flavonoid contents. The free radical scavenging property was then evaluated by DPPH assay and finally the effect of Polyporus squamousus was tested on catalase (CAT), superoxide dismutase (SOD) and glutathione- S-transferase (GST). In this study, four different mushroom extracts have been prepared using cold water, hot water, methanol, and ethanol. It was observed that cold water extract resulted in the highest contents of total phenolic and flavonoid (as 223.60 µg GAE /ml and 61.25 µg QE /ml respectively), Therefore, the cold water extract was used for further experiments. Based on the results obtained, it was found that DPPH radical scavenging capacity of mushroom extract is relatively low with 35% and IC50 value was 20.55 g/l with respect to quercetin and gallic acid as standards. In order to evaluate the antioxidant property of Polyporus squamosus extract, its effect on catalase, superoxide dismutase and glutathione-S-transferase was observed. It was found that the cold water extract of Poluporus squamosus had about 60% activation on catalase with respect to control and IC50 value of 2.810 g/l and surprisingly it had an activation effect as high as 95% and IC50 value was 11.94 g/l on SOD but nearly no effect on inhibition of GST with the inhibitory percent with respect to control found to be just around 7.2% and IC50 value was 1.089 g/l.
Description
Keywords
Biyokimya, Biochemistry
Turkish CoHE Thesis Center URL
Fields of Science
Citation
WoS Q
Scopus Q
Source
Volume
Issue
Start Page
0
End Page
57