Characterization of the microbial community in indoor environments by chemical marker analysis: an update and critical evaluation.
(2005) In Indoor Air 15 Suppl 9(9). p.20-26- Abstract
- We published recently an integrated procedure for applying chemical marker analysis to characterize the microbiology of indoor environments comprising a scheme for extraction and analysis of markers of endotoxin, peptidoglycan/bacterial biomass, and fungal biomass. In the present paper, we report some significant improvements and also new possibilities of the described approach. We found that while 3-hydroxy fatty acids (3-OH FAs) of 10-14 carbon chain lengths are useful endotoxin markers, longer 3-OH FAs (i.e. with 16 carbon atoms and more) may rather serve as markers of Actinobacteria. We introduced C-13-labeled 3-hydroxytridecanoic acid, from labeled Pectinatus cerevisiiphilus, as an internal standard to improve quantification of the... (More)
- We published recently an integrated procedure for applying chemical marker analysis to characterize the microbiology of indoor environments comprising a scheme for extraction and analysis of markers of endotoxin, peptidoglycan/bacterial biomass, and fungal biomass. In the present paper, we report some significant improvements and also new possibilities of the described approach. We found that while 3-hydroxy fatty acids (3-OH FAs) of 10-14 carbon chain lengths are useful endotoxin markers, longer 3-OH FAs (i.e. with 16 carbon atoms and more) may rather serve as markers of Actinobacteria. We introduced C-13-labeled 3-hydroxytridecanoic acid, from labeled Pectinatus cerevisiiphilus, as an internal standard to improve quantification of the 3-OH FAs in the gas chromatography-mass spectrometry analysis. Finally, in experiments aiming to identify a suitable method for collection of house dust for chemical marker analysis, we found that the marker compositions of dusts sedimented on plexiglass plates that were spatially well-distributed in a studied room at different heights above floor level, were undistinguishable. This type of sampling thus appears to be well suited for use, e.g. in epidemiological studies. In summary, the presented work describes important new capabilities of chemical marker analysis in defining human exposure to microorganisms in indoor environments. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/137876
- author
- Sebastian, Aleksandra LU ; Szponar, Bogumila LU and Larsson, Lennart LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- indoor air, muramic acid, chemical markers, microbiology, ergosterol, endotoxin
- in
- Indoor Air
- volume
- 15 Suppl 9
- issue
- 9
- pages
- 20 - 26
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000229940600004
- scopus:20444412371
- ISSN
- 0905-6947
- DOI
- 10.1111/j.1600-0668.2005.00341.x
- language
- English
- LU publication?
- yes
- id
- 0dcdfa57-e139-4c4a-b337-e1f3cd399bba (old id 137876)
- alternative location
- http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15910526&dopt=Abstract
- date added to LUP
- 2016-04-01 16:48:00
- date last changed
- 2022-04-15 07:05:20
@article{0dcdfa57-e139-4c4a-b337-e1f3cd399bba,
abstract = {{We published recently an integrated procedure for applying chemical marker analysis to characterize the microbiology of indoor environments comprising a scheme for extraction and analysis of markers of endotoxin, peptidoglycan/bacterial biomass, and fungal biomass. In the present paper, we report some significant improvements and also new possibilities of the described approach. We found that while 3-hydroxy fatty acids (3-OH FAs) of 10-14 carbon chain lengths are useful endotoxin markers, longer 3-OH FAs (i.e. with 16 carbon atoms and more) may rather serve as markers of Actinobacteria. We introduced C-13-labeled 3-hydroxytridecanoic acid, from labeled Pectinatus cerevisiiphilus, as an internal standard to improve quantification of the 3-OH FAs in the gas chromatography-mass spectrometry analysis. Finally, in experiments aiming to identify a suitable method for collection of house dust for chemical marker analysis, we found that the marker compositions of dusts sedimented on plexiglass plates that were spatially well-distributed in a studied room at different heights above floor level, were undistinguishable. This type of sampling thus appears to be well suited for use, e.g. in epidemiological studies. In summary, the presented work describes important new capabilities of chemical marker analysis in defining human exposure to microorganisms in indoor environments.}},
author = {{Sebastian, Aleksandra and Szponar, Bogumila and Larsson, Lennart}},
issn = {{0905-6947}},
keywords = {{indoor air; muramic acid; chemical markers; microbiology; ergosterol; endotoxin}},
language = {{eng}},
number = {{9}},
pages = {{20--26}},
publisher = {{Wiley-Blackwell}},
series = {{Indoor Air}},
title = {{Characterization of the microbial community in indoor environments by chemical marker analysis: an update and critical evaluation.}},
url = {{http://dx.doi.org/10.1111/j.1600-0668.2005.00341.x}},
doi = {{10.1111/j.1600-0668.2005.00341.x}},
volume = {{15 Suppl 9}},
year = {{2005}},
}