Naslov
Mint (Mentha spp.) Honey: Analysis of the Phenolic Profile and Antioxidant Activity

Autori
Pavlešić, Tomislav ; Poljak, Sanja ; Mišetić Ostojić, Dijana ; Lučin, Ivana ; Reynolds, Christian A. ; Kalafatović, Daniela ; Saftić Martinović, Lara

Izvornik
Food Technology and Biotechnology (1334-2606) 60 (2022), 4; 509-519

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

Ključne riječi
mint (Mentha spp.) honey ; honey chemical characterization ; physicochemical properties ; melissopalynology ; food authentication

Sažetak
Research background. The composition of honey is influenced by the botanical source and geographical area of the nectar from which it is derived. Unifloral honeys reach higher market value than multifloral honeys due to their specific aromas, which result from volatile and phenolic compounds. Experimental approach. The aim of our study is to characterize the phenolic composition of a rare unifloral variety of honey – mint (Mentha spp.) honey. For this purpose, we performed standard physicochemical analyses, pollen analysis, determined total phenolic and flavonoid content, analysed antioxidant activity and performed qualitative and quantitative analyses of phenolic compounds for five mint honeys. Results and conclusions. Our results indicate that mint honey samples have high phenolic content, expressed in gallic acid equivalents, from (76.7±0.6) to (90.1±1.1) mg/100 g, and flavonoid content, expressed as quercetin equivalents, from (6.7±0.6) to (12.5±0.8) mg/100 g. These honey samples also exhibit strong antioxidant activity, expressed as Trolox equivalents, from (33.6±2.8) to (51.3±1.2) mg/100 g and from (14.4±0.8) to (55.1±2.4) mg/100 g when analysed with DPPH and ABTS assays, respectively. Quantitative LC-MS/ MS analysis revealed that the most abundant phenols in all samples were chrysin, apigenin and p-coumaric acid. Qualitative LC-MS/MS analysis identified the presence of kaempferide, diosmetin, acacetin and several caffeic acid derivatives. Novelty and scientific contribution. Our study indicates that mint honey contains unique phenolic profiles, which likely contribute to its distinctive aroma and strong antioxidant activity. A detailed description of the rare honey varieties gives beekeepers greater visibility and easier access to the demanding natural product market.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija, Nutricionizam, Interdisciplinarne biotehničke znanosti, Biotehnologija u biomedicini (prirodno područje, biomedicina i zdravstvo, biotehničko područje)

POVEZANOST RADA