Antioxidant Capacity and Chemical Profiles of Satureja montana L. Honey: Hotrienol and Syringyl Derivatives as Biomarkers

作者：Jerkovic Igor^*; Tuberoso Carlo I G; Marijanovic Zvonimir; Kranjac Marina; Malenica Staver M

来源：Chemistry and Biodiversity, 2015, 12(7): 1047-1056.

DOI：10.1002/cbdv.201400183

• Satureja montana
• Honey
• Headspace solid-phase microextraction (HS-SPME)
• Ultrasonic solvent extraction (USE)
• GC
• MS Analysis
• HPLC-DAD Analysis
• Hotrienol
• Methyl syringate
• Syringaldehyde
• Syringic acid
• Antioxidant activity

The present study is focused on the antioxidant capacity and chemical profiling of eight Croatian Satureja montana L. honey samples. Among the 20 compounds obtained by headspace solid-phase microextraction (HS-SPME) and identified by GC-FID and GC/MS analyses, hotrienol was predominant (75.9-81.7%). The honey matrix volatile/semivolatile profile was investigated by ultrasonic solvent extraction (USE) followed by GC-FID and GC/MS analyses. The major compounds identified by this latter method were the sinapic-acid derivatives methyl syringate (36.2-72.8%) and syringaldehyde (2.2-43.1%). Direct, targeted HPLC-DAD analyses of the native honey samples revealed the presence of methyl syringate (7.10-39.60mg/kg) and syringic acid (0.10-1.70mg/kg). In addition, the total phenolic content of the samples was determined by the FolinCiocalteu assay (311.0-465.9mg GAE/kg), and the antioxidant capacity was evaluated by the DPPH radical-scavenging activity (0.5-1.0mmol TEAC/kg) and the ferric reducing antioxidant power (2.5-5.1mmol Fe2+/kg).

• 出版日期2015-7