Results 101 to 110 of about 30,342 (234)

Using Resonance Raman Cross-section Data to Estimate the Spin State Populations of Cytochromes P450 [PDF]

open access: yes, 2013
The cytochromes P450 (CYPs) are heme proteins responsible for the oxidation of xenobiotics and pharmaceuticals and the biosynthesis of essential steroid products.
Kincaid, James R.   +2 more
core   +2 more sources

Pastinaca sativa L.: Nutritional Composition, Phytochemistry, and Pharmacological Properties Supporting Its Potential as a Functional Food and Therapeutic Agent

open access: yesFood Science &Nutrition, Volume 14, Issue 5, May 2026.
Food‐grade processing of Pastinaca sativa (parsnip) converts a nutrient‐rich plant matrix (dietary fiber, fructans, phenolics) through washing/slicing/enzymatic treatment and ingredient preparation into functional food ingredients, including fiber concentrates, antioxidant‐rich fractions, and parsnip powders/extracts.
Somanjana Khatua   +7 more
wiley   +1 more source

Characterization of commercial synthetic resins by pyrolysis-gas chromatography/mass spectrometry : application to modern art and conservation [PDF]

open access: yes, 2009
To characterize a set of synthetic resins, a methodology by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) has been developed. The studied reference materials were commercial versions of a wide range of synthetic resins.
Baumer, U.   +4 more
core   +2 more sources

Lower Plasma Antioxidant Defense and Heat Shock Proteins Mark Intra‐Amniotic Sludge Ultrasound Finding

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 5, Page 1083-1094, May 2026.
Objectives Intra‐amniotic sludge is an independent risk factor for preterm birth. It consists of a biophysical sonographic finding in the amniotic fluid, formed by dense echogenic particles near the cervical internal orifice, due to sterile or infectious inflammatory processes.
Clarissa Chavez Ortiz Roberto   +8 more
wiley   +1 more source

Analytical evaluation of phenolic compounds and minerals of Opuntia robusta J.C. Wendl. and Opuntia ficus-barbarica A. Berger

open access: yesInternational Journal of Food Properties, 2018
In this study, 19 phenolic compounds were detected using high-throughput instrument ultra performance liquid chromatography with electrospray ionization tandem mass spectrometry (UPLC–ESI–MS/MS) in Opuntia ficus-barbarica A.
Şeyda Kıvrak   +2 more
doaj   +1 more source

The Antioxidant Activity of the Leaves of Barleria grandiflora Dalz. (Acanthaceae) [PDF]

open access: yes, 2009
Aqueous and hydro alcoholic extracts of the leaves of Barleria grandiflora Dalz. were evaluated for the antioxidant activity by the FTC and TBA methods.
Deokate, U. A.   +4 more
core   +1 more source

Analytical methods for possible WFD 1st watch list substances [PDF]

open access: yes, 2014
Directive 2013/39/EU amending the Environmental Quality Standards Directive 2008/105/EC under the European Water Framework Directive (WFD) has introduced the new “Watch List” monitoring mechanism in order to collect high-quality Union-wide monitoring ...
LOOS Robert
core   +1 more source

The Effects of Supplementation of Chlorella vulgaris Biomass on Egg Production and Composition of Laying Hens

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Dietary supplementation with Chlorella vulgaris up to 0.5% improved laying hen productivity, increasing egg number and daily production rate without compromising egg weight. Egg nutritional composition remained largely unchanged, with only indicative trends in fatty acid ratio and cholesterol, suggesting potential for productivity enhancement without ...
Sintija Jonova   +9 more
wiley   +1 more source

Oxidation Characteristics and Products of Butylated Hydroxytoluene in Acidic and Basic Environments [PDF]

open access: yesShipin Kexue
Under atmospheric pressure, KOH or HCl solution was added to the butylated hydroxytoluene (BHT) oxidation system to adjust the pH, and the oxidative consumption of BHT was monitored by high performance liquid chromatography (HPLC).
DAI Suyi, CHENG Haijun, LIU Xiongmin, MA Li, LI Weiguang, LAI Fang
doaj   +1 more source

Antioxidant activity of macroalgae from the Azores [PDF]

open access: yes, 2012
Free radical scavenging activity (FRSA) was studied to determine the antioxidant activity of 8 common macroalgae species found in the Azores. Species under study were Porphyra sp., Osmundea pinnatifida, Pterocladiella capillacea, Sphaerococcus ...
Baptista, José A. B.   +4 more
core  

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