Naslov
Antioxidant activity, color characteristics, total phenol content and general HPLC fingerprints of six Polish unifloral honey types

Autori
Kus, P. M. ; Congiu, F. ; Teper, D. ; Sroka, Z. ; Jerković, I. ; Tuberoso, C. I. G.

Izvornik
LWT-Food Science and Technology (0023-6438) 55 (2014), 1; 124-130

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
DPPH FRAP CIE L*a*b* Marker compounds Quality parameters

Sažetak
Total phenolic content, antioxidant activity (two assays: 1, 1-diphenyl-2-picrylhydrazyl radical (DPPH) and ferric reducing antioxidant power (FRAP)), and color coordinates (CIE (Commission Internationale de l’Eclairage) L*a*b*) for six Polish unifloral honeys (black locust, rapeseed, lime, goldenrod, heather and buckwheat) were assessed for several batches of the same honey type and statistically evaluated. Total phenolic content (121.6e1173.8 mg GAE/kg) was similar to the values previously reported for other European honeys and it was also correlated with the color parameters as well as antioxidant activity. The honeys’ color ranged from pale yellow to dark amber. Dark buckwheat honey with much higher phenolic content (1113.0 mg GAE/kg) exhibited higher antioxidant activity (5.7 mmol Fe 2þ /kg and 1.2 mmol TEAC/ kg). CIE L*a*b* color coordinates can be helpful for identifying and distinguishing between several honey types, such as heather and buckwheat, but almost no differences were found among very light honeys (rapeseed, goldenrod, black locust and lime). High-performance liquid chromatographic (HPLC) analysis revealed general characteristic fingerprints of Polish unifloral honeys with significant differences among the samples of other honey types.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA