Identification of biphenyls - Contaminants responsible for off-flavour in soft drinks
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F18%3A43916849" target="_blank" >RIV/60461373:22330/18:43916849 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.agriculturejournals.cz/publicFiles/297_2017-CJFS.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/297_2017-CJFS.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/297/2017-CJFS" target="_blank" >10.17221/297/2017-CJFS</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Identification of biphenyls - Contaminants responsible for off-flavour in soft drinks
Popis výsledku v původním jazyce
Off-flavour in soft drinks is one of the main threats to manufacturers, which can result in expensive recalls, and discredit the brand. Off-flavours can occur for a variety of reasons (e.g. chemical contamination of raw material). The presented case study has proved there is a relationship between the identification of biphenyl and its derivatives in the used preservative (benzoate) and off-flavours in the drink. The project consisted of three phases: (1) the assessment of the probable cause of off-flavours based on sensory evaluation and GC-MS-Olfactometry profiling of volatiles; (2) the quantification of biphenyls and the characterisation of their sensory properties; (3) the screening of commercially available benzoates for the presence of biphenyls. Based on the odour threshold obtained by GC-O (0.03 mg/l for 4-methyl-1,1'-biphenyl and 0.02 mg/l for biphenyl in an aqueous solution) and the common benzoate content in soft drinks (0.14 g/l), the 'non-observable sensory' levels of contamination were determined to be maximally 0.143 mg/g of benzoate for biphenyl and 0.214 mg/g of benzoate for 4-methyl-1,1'-biphenyl . © 2018 Czech Academy of Agricultural Sciences. All rights reserved.
Název v anglickém jazyce
Identification of biphenyls - Contaminants responsible for off-flavour in soft drinks
Popis výsledku anglicky
Off-flavour in soft drinks is one of the main threats to manufacturers, which can result in expensive recalls, and discredit the brand. Off-flavours can occur for a variety of reasons (e.g. chemical contamination of raw material). The presented case study has proved there is a relationship between the identification of biphenyl and its derivatives in the used preservative (benzoate) and off-flavours in the drink. The project consisted of three phases: (1) the assessment of the probable cause of off-flavours based on sensory evaluation and GC-MS-Olfactometry profiling of volatiles; (2) the quantification of biphenyls and the characterisation of their sensory properties; (3) the screening of commercially available benzoates for the presence of biphenyls. Based on the odour threshold obtained by GC-O (0.03 mg/l for 4-methyl-1,1'-biphenyl and 0.02 mg/l for biphenyl in an aqueous solution) and the common benzoate content in soft drinks (0.14 g/l), the 'non-observable sensory' levels of contamination were determined to be maximally 0.143 mg/g of benzoate for biphenyl and 0.214 mg/g of benzoate for 4-methyl-1,1'-biphenyl . © 2018 Czech Academy of Agricultural Sciences. All rights reserved.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20401 - Chemical engineering (plants, products)
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Czech Journal of Food Sciences
ISSN
1212-1800
e-ISSN
—
Svazek periodika
36
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
CZ - Česká republika
Počet stran výsledku
6
Strana od-do
16-21
Kód UT WoS článku
000431535600003
EID výsledku v databázi Scopus
2-s2.0-85044308730