Increase of methanol in exhaled breath quantified by SIFT-MS following aspartame ingestion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00451433" target="_blank" >RIV/61388955:_____/15:00451433 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1752-7155/9/4/047104" target="_blank" >http://dx.doi.org/10.1088/1752-7155/9/4/047104</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1752-7155/9/4/047104" target="_blank" >10.1088/1752-7155/9/4/047104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Increase of methanol in exhaled breath quantified by SIFT-MS following aspartame ingestion

Popis výsledku v původním jazyce

Aspartame, methyl-L- ? -aspartyl-L-phenylalaninate, is used worldwide as a sweetener in foods and drinks and is considered to be safe at an acceptable daily intake (ADI) of 40 mg per kg of body weight. This compound is completely hydrolyzed in the gastrointestinal tract to aspartic acid, phenylalanine and methanol, each being toxic at high levels. The objective of the present study was to quantify the volatile methanol component in the exhaled breath of ten healthy volunteers following the ingestion ofa single ADI dose of aspartame. Direct on-line measurements of methanol concentration were made in the mouth and nose breath exhalations using selected ion flow tube mass spectrometry, SIFT-MS, several times before aspartame ingestion in order to establish individual pre-dose (baseline) levels and then during two hours post-ingestion to track their initial increase and subsequent decrease. The results show that breath methanol concentrations increased in all volunteers by 1082 205 parts-

Název v anglickém jazyce

Increase of methanol in exhaled breath quantified by SIFT-MS following aspartame ingestion

Popis výsledku anglicky

Aspartame, methyl-L- ? -aspartyl-L-phenylalaninate, is used worldwide as a sweetener in foods and drinks and is considered to be safe at an acceptable daily intake (ADI) of 40 mg per kg of body weight. This compound is completely hydrolyzed in the gastrointestinal tract to aspartic acid, phenylalanine and methanol, each being toxic at high levels. The objective of the present study was to quantify the volatile methanol component in the exhaled breath of ten healthy volunteers following the ingestion ofa single ADI dose of aspartame. Direct on-line measurements of methanol concentration were made in the mouth and nose breath exhalations using selected ion flow tube mass spectrometry, SIFT-MS, several times before aspartame ingestion in order to establish individual pre-dose (baseline) levels and then during two hours post-ingestion to track their initial increase and subsequent decrease. The results show that breath methanol concentrations increased in all volunteers by 1082 205 parts-

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-28882S" target="_blank" >GA13-28882S: Excitace, separace a fragmentace iontů v driftovém poli v SIFT-MS pro okamžitou selektivní kvantifikaci stopových plynů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Breath Research

ISSN

1752-7155

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000367936100007

EID výsledku v databázi Scopus

2-s2.0-84953931450