| Title: | Unifloral Autumn Heather Honey from Indigenous Greek Erica manipuliflora Salisb.: SPME/GC-MS Characterization of the Volatile Fraction and Optimization of the Isolation Parameters |
| Author(s): | Xagoraris M; Chrysoulaki F; Revelou PK; Alissandrakis E; Tarantilis PA; Pappas CS; |
| Address: | "Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece. Laboratory of Quality and Safety of Agricultural Products, Landscape and Environment, Department of Agriculture, Hellenic Mediterranean University, Stavromenos, 71410 Heraklion, Greece. Institute of Agri-Food and Life Sciences Agro-Health, Hellenic Mediterranean University Research Center, Stavromenos, 71410 Heraklion, Greece" |
| ISSN/ISBN: | 2304-8158 (Print) 2304-8158 (Electronic) 2304-8158 (Linking) |
| Abstract: | "For long heather honey has been a special variety due to its unique organoleptic characteristics. This study aimed to characterize and optimize the isolation of the dominant volatile fraction of Greek autumn heather honey using solid-phase microextraction (SPME) followed by gas chromatography-mass spectrometry (GC-MS). The described approach pointed out 13 main volatile components more closely related to honey botanical origin, in terms of occurrence and relative abundance. These volatiles include phenolic compounds and norisoprenoids, with benzaldehyde, safranal and p-anisaldehyde present in higher amounts, while ethyl 4-methoxybenzoate is reported for the first time in honey. Then, an experimental design was developed based on five numeric factors and one categorical factor and evaluated the optimum conditions (temperature: 60 degrees C, equilibration time: 30 min extraction time: 15 min magnetic stirrer velocity: 100 rpm sample volume: 6 mL water: honey ratio: 1:3 (v/w)). Additionally, a validation test set reinforces the above methodology investigation. Honey is very complex and variable with respect to its volatile components given the high diversity of the floral source. As a result, customizing the isolation parameters for each honey is a good approach for streamlining the isolation volatile compounds. This study could provide a good basis for future recognition of monofloral autumn heather honey" |
| Keywords: | Erica manipuliflora Salisb.autumn heather honey gas chromatography-mass spectrometry optimization response surface methodology solid-phase microextraction volatiles; |
| Notes: | "PubMed-not-MEDLINEXagoraris, Marinos Chrysoulaki, Foteini Revelou, Panagiota-Kyriaki Alissandrakis, Eleftherios Tarantilis, Petros A Pappas, Christos S eng 2018SigmaEpsilon01300000/General Secretariat for Research & Technology (GSRT)/ Switzerland 2021/10/24 Foods. 2021 Oct 17; 10(10):2487. doi: 10.3390/foods10102487" |
