Results 31 to 40 of about 16,088 (210)

Case Report: Flavoring-Related Lung Disease in a Coffee Roasting and Packaging Facility Worker With Unique Lung Histopathology Compared With Previously Described Cases of Obliterative Bronchiolitis

open access: yesFrontiers in Public Health, 2021
Occupational exposure to diacetyl, a butter flavor chemical, can result in obliterative bronchiolitis. Obliterative bronchiolitis is characterized by exertional dyspnea, fixed airflow obstruction, and histopathologic constrictive bronchiolitis, with ...
R. Reid Harvey   +7 more
doaj   +1 more source

Exposures and Emissions in Coffee Roasting Facilities and Cafés: Diacetyl, 2,3-Pentanedione, and Other Volatile Organic Compounds

open access: yesFrontiers in Public Health, 2020
Roasted coffee and many coffee flavorings emit volatile organic compounds (VOCs) including diacetyl and 2,3-pentanedione. Exposures to VOCs during roasting, packaging, grinding, and flavoring coffee can negatively impact the respiratory health of workers.
Ryan F. LeBouf   +17 more
doaj   +1 more source

The spectrophotometric determination of diacetyl

open access: yesAnalytical Biochemistry, 1989
A new assay for the determination of diacetyl based on the colorimetric reaction with creatine and alpha-naphthol in an alkaline medium was developed. After a determination of optimal concentrations of the necessary reagents, the assay could easily detect as little as 0.5 micrograms of diacetyl.
J, Mattessich, J R, Cooper
openaire   +2 more sources

The Millimeter/submillimeter Spectrum Of Diacetyl [PDF]

open access: yes, 2021
Diacetyl is a common food flavoring, used most commonly in microwave popcorn. In addition to being a molecule of culinary significance, diacetyl is also a molecule of atmospheric interest, as it is an important source of \chem{HO_x} in the atmosphere. Of
Rebelsky, Jonathan
core   +1 more source

Diacetyl : MAK Value Documentation, 2015

open access: yes, 2016
The German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has evaluated diacetyl to derive a maximum concentration at the workplace (MAK value), considering all toxicological endpoints.
Hartwig, Andrea   +2 more
core   +2 more sources

Antimicrobial properties of diacetyl [PDF]

open access: yesApplied and Environmental Microbiology, 1982
Diacetyl preparations from three commercial sources were found to be essentially similar when tested primarily against a set of 40 cultures, including 10 of lactic acid bacteria, 4 of yeasts, 12 of gram-positive non-lactic acid bacteria, and 14 of gram-negative bacteria.
openaire   +2 more sources

On the oxidation of diacetyl [PDF]

open access: yesJournal of the Franklin Institute, 1896
n ...
Keller, Harry F., Maas, Philip
openaire   +2 more sources

SYNTHESIS AND PHYSICOCHEMISTRY PROPERTIES PREDICTION OF A NEW POTENTIAL ANTI-INFLAMMATORY AGENT: DIACETYL PENTAGAMAVUNON-1

open access: yesIndonesian Journal of Chemistry, 2010
Synthesis and physicochemistry properties prediction of a potential anti-inflammatory agent, diacetyl pentagamavunon-1 (diacetyl PGV-1), has been done. The synthesis was using pentagamavunon-1 (PGV-1) (2,87x10-3 mole) and anhydride acetic acid (26x10-3 ...
Supardjan A. Margono   +4 more
doaj   +1 more source

Non-target GC–MS analyses of fecal VOCs in NASH-hepatocellular carcinoma model STAM mice

open access: yesScientific Reports, 2023
The increased incidence of obesity in the global population has increased the risk of several chronic inflammation-related diseases, including non-alcoholic steatohepatitis (NASH)-hepatocellular carcinoma (HCC).
Mai Kato   +16 more
doaj   +1 more source

Molecular and Electronic Structures of Macrocyclic Compounds Formed at Template Synthesis in the M(II)—Thiocarbohydrazide—Diacetyl Triple Systems: A Quantum-Chemical Analysis by DFT Methods

open access: yesMolecules, 2023
Using density functional theory (DFT) B3PW91/TZVP, M06/TZVP, and OPBE/TZVP chemistry models and the Gaussian09 program, a quantum-chemical calculation of geometric and thermodynamic parameters of Ni(II), Cu(II), and Zn(II) macrotetracyclic chelates, with
Oleg V. Mikhailov, Denis V. Chachkov
doaj   +1 more source

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