Phytochemical and Antimicrobial Characteristics of Raspberry FruitGrowing Naturally in Kelkit Valley, Turkey
Abstract
The study was carried out to determine the pomological, phytochemical and antimicrobial properties of wild raspberryfruit (Rubus idaeus) naturally growing in the Kelkit Valley in Turkey. In the study, the wild raspberry fruit was compara-tively smaller. In fruit, soluble solids content (SSC) was determined as 12.6%, titratable acidity as 1.36% and vitamin Cconcentration as 28.8 mg 100 g–1. Total phenolics, total flavonoids, 1,1-diphenyl-2-picrylhydrazil (DPPH) and ferric ions(Fe+3) reducing antioxidant power assay (FRAP) activity values were 1775 mg kg–1, 151 mg kg–1, 2580 μmol kg–1 and5187 μmol kg–1, respectively. In the study, the solution obtained from raspberries had an antimicrobial effect on bacteria.While it had an antimicrobial effect on Aspergillus niger fungus, it did not have any effect on Candida albicans fungus.The highest antimicrobial activity was achieved against Pseudomonas aeruginosa, while the lowest effect was againstEnterococcus feacalis bacteria. It was revealed that the raspberry fruit investigated in the study can be used as material forbreeding studies due to their rich bioactive compounds and antimicrobial content