Abstract: To characterize honeys of different botanical origin produced in Turkey, phenolic acids and flavonoids profiles were identified by HPLC. Phenolic acids such as caffeic and p-coumaric and flavonoids such as pinocembrin and chrysin were detected in all the samples of this study. All the honeydew (pine and oak) honeys contained protocatechuic acid at significant concentrations. In contrast, almost all the floral honey samples were devoid of protocatechuic acid. Hence, this compound could be botanical marker of honeydew honeys. The oak honey contained significant concentration of ellagic acid (336.8 μg/100 g). Therefore, this honeydew could be differentiated from pine honeydews by ellagic acid. On the other hand, the flavonoid kaempferol which was never detected in the honeydew honeys used in this study was detected in many floral honeys such as cotton, yayla and multifloral. Therefore, kaempferol could be a marker for some floral types of honeys. Most of the cotton honey samples contained a flavonoid called as quercetin. But they were devoid of syringic and ferulic acids. The methyl syringate was detected in highest amounts in most of the multifloral honeys and in significant concentrations in yayla honeys. The sunflower honeys were inconsistent in phenolic compounds profile. Most of the sunflower honey samples were contained quercetin. One of sunflower (Sample code: SFH09) honey samples contained myricetin in significant amount (85.2 μg/100 g).
Mohammed Ishaq Haroun, Ender S. Poyrazoglu, Nevzat Konar and Nevzat Artik, 2012. Phenolic Acids and Flavonoids Profiles of Some Turkish Honeydew and Floral Honeys. Journal of Food Technology, 10: 39-45.