Results 41 to 50 of about 36,585 (232)

Hygroscopicity of organic compounds from biomass burning and their influence on the water uptake of mixed organic ammonium sulfate aerosols [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Hygroscopic behavior of organic compounds, including levoglucosan, 4-hydroxybenzoic acid, and humic acid, as well as their effects on the hygroscopic properties of ammonium sulfate (AS) in internally mixed particles are studied by a hygroscopicity tandem
T. Lei   +4 more
doaj   +1 more source

Nematicidal Metabolites from the Actinomycete Micromonospora sp. WH06

open access: yesMicroorganisms, 2022
A nematicidal actinomycete strain WH06 was isolated from soil samples and was identified using 16S rRNA as Micromonospora sp. Through medium screening and fermentation, 10 metabolites were isolated from the ethyl acetate extract of its fermentation broth
Yuan Ran, Yu Zhang, Xin Wang, Guohong Li
doaj   +1 more source

Recovery of Polyphenols from Brewer’s Spent Grains [PDF]

open access: yes, 2019
peer-reviewedThe recovery of antioxidant polyphenols from light, dark and mix brewer’s spent grain (BSG) using conventional maceration, microwave and ultrasound assisted extraction was investigated.
Birsan, Rares   +3 more
core   +2 more sources

THE USE OF A CHROMATOGRAPHIC COLUMN PACKED WITH AMIDE SORBENT FOR THE ANALYSIS OF PARABENS

open access: yesРегуляторные исследования и экспертиза лекарственных средств, 2018
The article investigates the applicability of the amino column XBridge Amide 150×4.6 mm for separation of 4-hydroxybenzoic acid esters (parabens) — based on experience with hydrophilic interaction liquid chromatography used for analysis of various ...
A. S. Osipov   +4 more
doaj   +1 more source

Caffeic Acid Inhibits the Formation of 7-Carboxyheptyl Radicals from Oleic Acid under Flavin Mononucleotide Photosensitization by Scavenging Singlet Oxygen and Quenching the Excited State of Flavin Mononucleotide

open access: yesMolecules, 2014
We examined the effects of caffeic acid (CA) and related compounds on 7-carboxyheptyl radical formation. This analysis was performed using a standard D2O reaction mixture containing 4.3 mM oleic acid, 25 μM flavin mononucleotide (FMN), 160 mM phosphate ...
Marie Asano, Hideo Iwahashi
doaj   +1 more source

Investigation of in vitro antimicrobial activities of some hydroxybenzoic and hydroxycinnamic acids commonly found in medicinal and aromatic plants

open access: yesInternational Journal of Plant Based Pharmaceuticals, 2021
Since hospital-acquired microorganisms are developing more and more resistance to antibiotics used today, researchers are turning to new searches in the treatment of infectious diseases.
Aslihan Gurbuzer
doaj  

Evaluation of biodegradation kinetic constants for aromatic compounds by means of aerobic batch experiments [PDF]

open access: yes, 2006
Kinetics of aerobic biodegradation have been investigated for twenty aromatic species using sludges collected from the aeration basin of municipal sewage treatment plants. The reproducibility of the results is tested with respect to the sludges period of
ANDREOZZI, ROBERTO   +3 more
core   +1 more source

Acid-catalysed rearrangements of allyl 4-hydroxybenzoate and 3-methylbut-2- enyl-4-hydroxybenzoate

open access: yes, 2009
Department of Chemistry, Srikrishna College, Bagula-741 507, Nadia, West Bengal, India E-mail : deysp2002@yahoo.co.in Department of Chemistry, Chandidas Mahavidyalaya, Khujutipara-731 215, Birbhum, West Bengal, India E-mail : deydk@yahoo.com Manuscript received 27 June 2008, revised 31 December 2008, accepted 1 January 2009 On treatment with 75 ...
Dey, Sankar P., Dey, Dilip K.
openaire   +1 more source

Analysis of 4-Hydroxyphenyllactic Acid and Other Diagnostically Important Metabolites of α-Amino Acids in Human Blood Serum Using a Validated and Sensitive Ultra-High-Pressure Liquid Chromatography-Tandem Mass Spectrometry Method

open access: yesMetabolites, 2023
The profile of and dynamic concentration changes in tyrosine, phenylalanine, and tryptophan metabolites in blood are of great interest since they could be considered potential biomarkers of different disorders.
Pavel D. Sobolev   +4 more
doaj   +1 more source

Searching for new sources of innovative products for the food industry within halophyte aromatic plants: In vitro antioxidant activity and phenolic and mineral contents of infusions and decoctions of Crithmum maritimum L. [PDF]

open access: yes, 2017
Aromatic halophyte plants are an outstanding source of bioactive compounds and natural products with potential use in the food industry. This work reports the in vitro antioxidant activity, toxicity, poly phenolic profile and mineral contents of ...
Barreira, Luísa   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy