Tracking, Behavior and Fate of 58 Pesticides Originated from Hops during Beer Brewing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10391642" target="_blank" >RIV/00216208:11310/18:10391642 - isvavai.cz</a>

Alternative codes found

RIV/60193697:_____/18:N0000022

Result on the web

<a href="https://doi.org/10.1021/acs.jafc.8b03416" target="_blank" >https://doi.org/10.1021/acs.jafc.8b03416</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jafc.8b03416" target="_blank" >10.1021/acs.jafc.8b03416</a>

Result language

angličtina

Original language name

Tracking, Behavior and Fate of 58 Pesticides Originated from Hops during Beer Brewing

Original language description

The study presents tracking of 58 pesticide residues associated with hops to estimate their carryover into brewed beer. The pesticides were spiked onto organic hops at a concentration of 15 mg/kg, and the wort was boiled with the artificially contaminated hops and fermented on a laboratory scale. Samples were collected during the whole brewing process and pesticide residues were extracted using a method known as QuEChERS (quick, easy, cheap, effective, rugged, and safe). An HPLC HRMS/MS method was developed and validated to identify and quantitate pesticide residues in treated hops, spent hops, hopped wort, green beer, and beer samples. Quantitation was achieved using standard addition with isotopically labeled standards. The carryover percentages into hopped wort and the percentages of decay reduction relative to the amount spiked on hops were calculated. The relationship between the partition coefficients n-octanol water (log P values) and the residual ratios (Rw and RB) of a pesticide were evaluated to predict their behavior during hopping of wort and fermentation. Pesticides with a high log P values (&gt;3.75) tended to remain in spent hops. The pesticides that have a low log P value up to approximately 3 could represent the demarcation lines of appreciable transfer rate of pesticides from hops to beer. Consequently, the pesticides were divided into three categories depending upon their fate during the brewing process. The most potential risk category represents a group involving the thermostable pesticides, such as azoxystrobin, boscalid, dimethomorph, flonicamid, imidacloprid, mandipropamid, myclobutanil, and thiamethoxam, which were transferred at high rates from the pesticide enriched hops into beer during the laboratory brewing trial. These results can be used as a guideline in the application of pesticides on hop plants that would reduce the level of pesticide residues in beer and their exposure in humans.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

<a href="/en/project/TE02000177" target="_blank" >TE02000177: Centre for Innovative Use and Strengthening of Competitiveness of Czech Brewery Raw Materials and Products</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Journal of Agricultural and Food Chemistry

ISSN

0021-8561

e-ISSN

—

Volume of the periodical

66

Issue of the periodical within the volume

38

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

10113-10121

UT code for WoS article

000446142800027

EID of the result in the Scopus database

2-s2.0-85053611043