Molecular diversity of volatile compounds in rare willow (Salix spp.) honeydew honey: identification of chemical biomarkers

作者：Jerkovic I^*; Marijanovic Z; Tuberoso C I G; Bubalo D; Kezic N

来源：Molecular Diversity, 2010, 14(2): 237-248.

DOI：10.1007/s11030-009-9164-6

• Salix spp. honeydew honey
• Volatile compounds
• Headspace solid-phase microextraction (HS-SPME)
• Ultrasonic solvent extraction (USE)
• Gas chromatography-mass spectrometry (GC-MS)

Salix spp. honeydew honey volatiles were analyzed for the first time by headspace solid-phase microextraction (HS-SPME) and ultrasonic solvent extraction (USE) followed by gas chromatography and mass spectrometry (GC, GC-MS). The use of HS-SPME and USE had advantageous results over the use of one single technique, as it provided different complementary chromatographic profiles for a comprehensive screening of the honeydew volatile composition. The volatiles with different functionality, molecular weight, and polarity were extracted and identified. High percentages of benzoic acid, phenylacetic acid, 2-hydroxybenzoic acid, 4-hydroxyphenylacetic acid with minor percentages of 4-methoxybenzoic acid, 4-hydroxyphenylethanol, and 4-hydroxybenzoic acid from USE extracts can be emphasized as volatile biomarkers of this honeydew that probably originated from Salix spp., as well as methyl salicylate identified only by HS-SPME. The application of heat treatment at 80 A degrees C for 2 h did not change significantly the volatile composition of this honeydew.

• 出版日期2010-5