Bilberies (Vaccinium myrtillus L.)' in antioksidan, fenolik içerik ve antimikrobiyal aktivitesinin belirlenmesi

Today, there is a growing interest in nutritional awareness and a selective preference towards a healthy and balanced diet. A number of varieties of vegetables are good sources of essential components in human nutrition, providing vitamins, minerals, and fibre in general. Vaccinium myrtillus L. is a well‐ known bilberry shrub belonging to the Ericaceae family. Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are known to participate in the pathogenesis of various human diseases and may be involved in the conditions which Vaccinium myrtillus is used to treat. According to above mentioned it is important and reasonable to get to know and to investigate the antioxidant action and beneficial properties of billberry fruits and leaves grown in Turkey. In this study, dried fruit and leaves extracts of bilberies (V. myrtillus L.) growed in Turkey have been investigated in two different solvents (methanol, and water) and antimicrobial activity.In the present study, antioxidan activity of water extract from V. Myrtillus leaves revealed 949 μMTE/g. V. Myrtillus leaves had the highest antioxidan activity(949 μMTE/g) followed by water extract from V. Myrtillus fruits(151.98 μMTE/g), while the lowest value was observed in methanol extract from V. Myrtillus( 60.85 μMTE/g) followed leaves followed by methanol extract from V. Myrtillus fruits(85.21 μMTE/g). The phenolic compound of V. Myrtillus varied from 0.081 to 1.037 mMGAE/g. The highest phenolic compound was determined by methanol extract from V. Myrtillus leaves (1.037 mMGAE/g), and the lowest phenolic compound was found by methanol extract V. Myrtillus fruits (0.081 mMGAE/g). Extracts of leaves and fruits of blueberries (Vaccinum myrtllus) prepared with two different solvents, indicated maximum antimicrobial activity on Escherichia coli (10 mm) and Bacillus subtilis (10 mm). Fruit ethyl alcohol extract indicated antimicrobial activity against Escherichia coli, Bacillus subtilis (10 mm), Staphylococcus aureus (9 mm), Pseudomonas aeruginosa (7 mm). Keyword: Antioxidan, Vaccinium myrtillus L., antimicrobial activity