Rape honey: Determination of botanical origin based on volatile compound profiles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F19%3A43919474" target="_blank" >RIV/60461373:22330/19:43919474 - isvavai.cz</a>

Výsledek na webu

<a href="http://vup.sk/index.php?mainID=2&navID=36&version=2&volume=58&article=2159" target="_blank" >http://vup.sk/index.php?mainID=2&navID=36&version=2&volume=58&article=2159</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Rape honey: Determination of botanical origin based on volatile compound profiles

Popis výsledku v původním jazyce

Generally, it is very difficult to determine which volatile compounds significantly contribute to the typical rape honey aroma. The aim of this research was to characterize, for the first time, the main volatile compounds present in Czech rape honeys using solid phase microextraction (SPME) followed by gas chromatography coupled to mass spectrometry (GC-MS). The study also explored possibilities to reliably identify and distinguish between rape and multifloral honeys on the basis of the profile of volatile compounds. A total of 28 unifloral rape honeys (Brassica napus) from local Czech beekeepers produced in 2014–2016 were analysed. Obtained data were statistically processed using principal component analysis, linear discriminant analysis and analysis of variance. Based on the results, the following compounds were the most abundant in each of the analysed Czech rape honeys (relative representation in percent): Hotrienol (7.2–39.3 %), benzaldehyde (0.7–19.0 %), 3-methylbutanenitrile (0.1–15.7 %), 2-phenylethanol (1.0–10.2 %) and nonanoic acid (0.4–7.0 %). Moreover, 3-methylbutanenitrile and nonanoic acid were identified as the characteristic compounds for rape honeys. 263718699theless, the presence of 5–25 % of other botanical species in the honeys had a significant impact on the occurrence and representation of the individual volatile compounds.

Název v anglickém jazyce

Rape honey: Determination of botanical origin based on volatile compound profiles

Popis výsledku anglicky

Generally, it is very difficult to determine which volatile compounds significantly contribute to the typical rape honey aroma. The aim of this research was to characterize, for the first time, the main volatile compounds present in Czech rape honeys using solid phase microextraction (SPME) followed by gas chromatography coupled to mass spectrometry (GC-MS). The study also explored possibilities to reliably identify and distinguish between rape and multifloral honeys on the basis of the profile of volatile compounds. A total of 28 unifloral rape honeys (Brassica napus) from local Czech beekeepers produced in 2014–2016 were analysed. Obtained data were statistically processed using principal component analysis, linear discriminant analysis and analysis of variance. Based on the results, the following compounds were the most abundant in each of the analysed Czech rape honeys (relative representation in percent): Hotrienol (7.2–39.3 %), benzaldehyde (0.7–19.0 %), 3-methylbutanenitrile (0.1–15.7 %), 2-phenylethanol (1.0–10.2 %) and nonanoic acid (0.4–7.0 %). Moreover, 3-methylbutanenitrile and nonanoic acid were identified as the characteristic compounds for rape honeys. 263718699theless, the presence of 5–25 % of other botanical species in the honeys had a significant impact on the occurrence and representation of the individual volatile compounds.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21101 - Food and beverages

Projekt

<a href="/cs/project/QK1920344" target="_blank" >QK1920344: Ověření autenticity medu pomocí analýzy pylových zrn.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Food and Nutrition Research

ISSN

1336-8672

e-ISSN

—

Svazek periodika

58

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

10

Strana od-do

339-348

Kód UT WoS článku

000502811500005

EID výsledku v databázi Scopus

2-s2.0-85076229484