Results 11 to 20 of about 3,226,614 (243)

Microbial volatile fingerprints: potential use for soil/water diagnostics and correlation with traditional microbial parameters [PDF]

open access: yes, 2007
This project used an electronic nose (E-nose) system composed of an array of 14 nonspecific conducting polymer sensors for soil and water diagnostics, based on qualitative microbial volatile production patterns. It tested the feasibility of using soil
Bastos, Ana Catarina
core   +7 more sources

Volatile aldehydes in libraries and archives [PDF]

open access: yes, 2010
Volatile aldehydes are produced during degradation of paper-based materials. This may result in their accumulation in archival and library repositories. However, no systematic study has been performed so far.
Gibson, Lorraine T.   +7 more
core   +5 more sources

Analysis of volatile marker compounds in body fluid samples from patients with gastrointestinal disease [PDF]

open access: yes, 2010
Causes of gastrointestinal diseases such as ulcerative colitis (UC) Crohn’s disease (CD) and irritable bowel syndrome (IBS) are not yet completely understood and clinical investigation for diagnosis is invasive, costly and time consuming.
Fowler, Dawn P.
core   +7 more sources

Automated Signal Processing Applied to Volatile-Based Inspection of Greenhouse Crops [PDF]

open access: yes, 2010
Gas chromatograph–mass spectrometers (GC-MS) have been used and shown utility for volatile-based inspection of greenhouse crops. However, a widely recognized difficulty associated with GC-MS application is the large and complex data generated by this ...
Roel Jansen   +8 more
core   +1 more source

Assessment of Volatile Characteristics of Okinawan Pineapple Breeding Lines by Gas-Chromatography–Mass-Spectrometry-Based Electronic Nose Profiling and Odor Activity Value Calculation

open access: yesChemosensors, 2023
The recent increase in demand for Okinawan pineapples has necessitated the development of new varieties with attractive aromas. This study aimed to evaluate the volatile characteristics of five Okinawan pineapple breeding lines, i.e., ‘No. 22’, ‘No. 25’,
Yonathan Asikin   +7 more
doaj   +1 more source

Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation [PDF]

open access: yes, 2013
Analysis of volatile organic compounds (VOCs) during PP thermal oxidation under three oxygen partial pressures (0%, 21% and 100% of atmospheric pressure) at 140 C was performed by proton transfer reaction coupled with Fourier transform ion cyclotron ...
LEPROVOST, Julien   +6 more
core   +1 more source

Structural Characterization with Laser Scanning Microscopy and an Analysis of Volatile Components Using GC-MS in Vanilla Pods Coated with Edible Microorganisms

open access: yesFermentation, 2023
The aroma of vanilla pods is mainly derived from vanillin. Microbial biotransformation reactions of vanillin precursors yield “natural” vanillin-related aroma metabolites.
Chun-Erh Chen   +3 more
doaj   +1 more source

Researches on hybrid Phlomis x termessi P.H. Davis in Göynük province of Antalya

open access: yesTurkish Journal of Forestry, 2017
In this study that was conducted during the vegetation period of 2016, determination to morphological characteristics and volatile components in volatile components in the leaves and flowers of Phlomis x termessi P.H. Davis were aimed. For determining to
Ayşe Gül SARIKAYA, Hüseyin FAKİR
doaj   +1 more source

Effect of Different Drying Processes on the Quality of Ficus hirta Vahl.

open access: yesShipin gongye ke-ji, 2023
In order to comprehensive evaluate the quality of Ficus hirta Vahl., which were dried under sun, fumigated by sulfur dioxide, dried by vacuum freezing, and dried by hot air at 50 ℃, the contents of psoralen, total polyphenols, total flavones, soluble ...
Qing GUI   +5 more
doaj   +1 more source

Herbivory by a phloem-feeding insect inhibits floral volatile production [PDF]

open access: yes, 2012
There is extensive knowledge on the effects of insect herbivory on volatile emission from vegetative tissue, but little is known about its impact on floral volatiles.
Webster Ben   +33 more
core   +2 more sources

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