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Thiele V, Monsé C, Hoffmeyer F, Brüning T, Bünger J, Sucker K. Indoor Air Quality-An Overview of Methods for Measuring Odor Detection Thresholds of Single Substances. Respir Physiol Neurobiol 2023:104108. [PMID: 37393967 DOI: 10.1016/j.resp.2023.104108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
Odor evaluation is an important topic in the field of indoor air quality. Odor detection threshold (ODT) values are used to derive limit values like odor guide values or odor activity value. However, ODT values for the same substance available in compilations or published before 2003 rarely have an accuracy of less than three orders of magnitude. Stimulus preparation, including analytical verification, stimulus presentation, as well as selection and training of test subjects have been identified as major sources of variability. ODT values obtained by validated standardized methods are now considered objective, reliable, and reproducible. They exhibit a variability of one or two orders of magnitude and are lower than traditionally assumed and reported. This review presents the essential criteria for a well-performed ODT determination. It is intended to assist health and safety professionals in assessing whether the methodological approach of a study was appropriate for determining a valid and reliable ODT value.
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Affiliation(s)
- Vanessa Thiele
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Christinan Monsé
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Frank Hoffmeyer
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Jürgen Bünger
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Kirsten Sucker
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
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Parker M, Onetto C, Hixson J, Bilogrevic E, Schueth L, Pisaniello L, Borneman A, Herderich M, de Barros Lopes M, Francis L. Factors Contributing to Interindividual Variation in Retronasal Odor Perception from Aroma Glycosides: The Role of Odorant Sensory Detection Threshold, Oral Microbiota, and Hydrolysis in Saliva. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10299-10309. [PMID: 31630520 DOI: 10.1021/acs.jafc.9b05450] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Glycosides are sugar conjugates of aroma compounds that are found in many fruits and vegetables, and while glycosides are non-volatile, they can release flavor during eating, through enzyme hydrolysis from oral microbiota. Recently, a range of sensory phenotypes for glucoside perception have been observed, reflecting interindividual variation in response to precursors of floral and smoky flavors, geranyl glucoside and guaiacyl glucoside. To understand this variation and investigate the role of oral microbiota on in vitro hydrolysis of glucosides in saliva, metagenomic screening was conducted using individuals representing the range of sensory phenotypes for geranyl and guaiacyl glucosides. In parallel, sensory retronasal detection thresholds for geranyl glucoside, guaiacyl glucoside, and the volatile odorants geraniol and guaiacol were determined. Oral microbial communities correlated with hydrolysis of glucosides in saliva, but the relationship did not extend to sensory phenotypes. Overall, the retronasal detection threshold of the volatile odorants studied was the main factor determining sensory phenotype.
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Affiliation(s)
- Mango Parker
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
- School of Pharmacy and Medical Sciences, The University of South Australia, General Post Office Box 2471, Adelaide, South Australia 5001, Australia
| | - Cristobal Onetto
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Josh Hixson
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Eleanor Bilogrevic
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Louisa Schueth
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Lisa Pisaniello
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Anthony Borneman
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Markus Herderich
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - Miguel de Barros Lopes
- School of Pharmacy and Medical Sciences, The University of South Australia, General Post Office Box 2471, Adelaide, South Australia 5001, Australia
| | - Leigh Francis
- The Australian Wine Research Institute, Post Office Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
- School of Pharmacy and Medical Sciences, The University of South Australia, General Post Office Box 2471, Adelaide, South Australia 5001, Australia
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Peng M, Hautus MJ, Jaeger SR. Methods for Fitting Olfactory Psychometric Functions: A Case Study Comparing Psychometric Functions for Individuals with a “Sensitive” or “Insensitive” Genotype for β-Ionone. Chem Senses 2016; 41:771-782. [DOI: 10.1093/chemse/bjw090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Jaeger SR, de Silva HN, Lawless HT. Detection Thresholds of 10 Odor-active Compounds Naturally Occurring in Food Using a Replicated Forced-Choice Ascending Method of Limits. J SENS STUD 2014. [DOI: 10.1111/joss.12085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sara R. Jaeger
- Mt Albert Research Centre; Auckland Mail Centre; The New Zealand Institute for Plant & Food Research Ltd; Private Bag 92 169 Auckland 1142 New Zealand
| | - H. Nihal de Silva
- Mt Albert Research Centre; Auckland Mail Centre; The New Zealand Institute for Plant & Food Research Ltd; Private Bag 92 169 Auckland 1142 New Zealand
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