The volatile compounds from brown millet (BM), milled millet (MM) and millet bran (MB) were extracted using simultaneous distillation/extraction with a Likens-Nickerson apparatus. The extracts were analysed using gas chromatography coupled with mass spectrometry (GC-MS). A total of 65 volatile compounds were identified in all of the samples. Among these compounds, 51, 51 and 49 belonged to BM, ...

Commercial bed bug (Cimex lectularius L.) monitors incorporating carbon dioxide (CO2), heat, and chemical lures are being used for detecting bed bugs; however, there are few reported studies on the effectiveness of chemical lures in bed bug monitors and the interactions among chemical lure, CO2, and heat. We screened 12 chemicals for their attraction to bed bugs and evaluated interactions among...

The volatile oil from Boletopsis leucomelas (Pers.) Fayod was extracted by hydrodistillation with diethylether, and the volatile components of the oil were analyzed by gas chromatography-mass spectrometry. The oil contained 86 components, representing 87.5% of the total oil. The main components of the oil were linoleic acid (15.0%), phenylacetaldehyde (11.2%), and palmitic acid (9.4%). Furtherm...

Various volatile organic compounds (VOCs) in breath exhaled by patients with lung cancer, healthy controls, and patients with lung cancer who underwent surgery for resection of cancer were analyzed by gas condenser-equipped gas chromatography-mass spectrometry (GC/MS) for development of an exhaled breath monitoring prototype system involving metal oxide gas sensors, a gas condenser, and gas chr...

The aim of this study was the physicochemical characterization traditional cassava flours from Copioba Valley in Reconcavo Baiano (Northeast Brazil). Samples were collected flour houses and analyzed by official methods proximate composition chromatography spectroscopy for fatty acids volatile compounds. Regardless geographical origin (inside outside Valley) processing type (Copioba Common flour...

The aim of this study is to analyze the volatile composition and antimicrobial antioxidant activities essential oils Polytrichum commune Antitrichia curtipendula. obtained by hydro-distillation (HD) from each species were identified GC-MS/FID. main components biformene (13.06%), ?-pinene (6.53%), bornyl acetate (8.10%) in P. commune. Nonanal tetradecanal as major compounds 19.96% 20.23% A. curt...

Olsson, J. 2000. Modem methods in cereal grain mycology. Doctor's dissertation. ISSN 1401-6249, ISBN 91-576-5792-0. A simple rapid DNA extraction method, equally suitable for spores and mycelia is proposed. Heating samples in NaOH and SDS provides DNA of high purity, suitable for Polymerase Chain Reaction (PCR) analysis. For Penicillium roqueforti the detection limit was 6 x lo3 conidia and 1 m...

Volatiles are important quality components in tea (Camellia sinensis) flowers. Albino plants mutant with diverse abnormal metabolisms. However, whether the metabolisms of volatiles flowers from albino cultivars remains unclear. In this study, headspace solid-phase microextraction coupled to gas chromatography-mass spectrometry and aroma evaluation were conducted investigate volatile composition...

Sea grape (Caulerpa racemosa) is an edible green alga which contains a high amount of protein with seafood flavor, can be released via hydrolysis. Our present work was designed to determine the optimal concentration palm sugar and carboxymethylcellulose (CMC) in sea hydrolysate sauce. The process optimization performed evaluate multiple parameters such as viscosity, color properties, hedonic sc...

The odor generated by air conditioners is an important factor influencing the perceived quality in buildings. In this study, different types of and filters were investigated to study level emission related operation state compressor, identify compounds analyze cooling setpoint temperature on emitted intensity. Results show that from constant frequency conditioner use periodic stronger than vari...