Sensoanalytical investigations of roast coffee compounds in exhaled air and saliva

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00024380

Enrollment

Registered

2021-02-05

Start date

2021-02-14

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

profile of exhaled coffee compounds and their volatile metabolites, "coffee breath"

Interventions

Group 1: Intervention: study participants drink water as control, samples of blood, exhaled air, saliva and urine are taken. Group 2: Intervention: study participants drink coffee, samples of blood, e

Eligibility

Sex/Gender

All

Age

20 Years to 60 Years

Inclusion criteria

Inclusion criteria: no acute illness, no medication, age 20, not pregnant, non-smoker, no issues with sense of smell and taste

Exclusion criteria

Exclusion criteria: no written informed consent, acute illness, acute medication, 60 years of age, smoker, pregnancy

Design outcomes

Primary

Measure	Time frame
Identification/quantification of coffee compounds in exhaled air and saliva.	—

Secondary

Measure	Time frame
Identification/quantification of coffee compounds in blood and urine.	—

Countries

Germany

Contacts

Public ContactRoman Lang

Leibniz-Institut für Lebensmittel-Systembiologie an der TU München

r.lang.leibniz-lsb@tum.de+498161712978

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026