Characterisation of the microbial community in indoor environments: Critical evaluation of sample storage conditions
Assessment of indoor air quality in terms of microbial flora is important since inhalation of air-borne microorganisms has been associated e.g. with asthma and allergy. We focus on certain unique microbial markers: muramic acid, marker of bacterial peptidoglycan/biomass; 3-hydroxy fatty acids with 10-18 carbon chains, markers of lipopolysaccharide (LPS, endotoxin) of Gram-negative bacteria; and er
