Results 101 to 110 of about 63,568 (310)

Nuclear magnetic resonance and infrared spectra of Δ24- and C-24 saturated steroids

open access: yesJournal of Lipid Research, 1968
The infrared (IR) and nuclear magnetic resonance (NMR) spectra of eight Δ24-steroids and nine C-24 saturated steroids were examined. NMR spectra allow unambiguous assignment of the biologically important Δ24-bond; introduction of a Δ24-bond causes the ...
Terence J. Scallen, William Krueger
doaj   +1 more source

HYPOCHOLESTEROLEMIC AGENTS DERIVED FROM STEROLS OF MARINE ALGAE

open access: yes, 1962
Sterols isolated from two species of marine brown algae, Fucus gardneri and Sargassum muticum, were fed to young Leghorn cockerels. Both sterols caused a significant diminution in plasma cholesterol level.
E. Reiner, J. Topliff, J. D. Wood
core   +1 more source

Phytochemical Investigation and In Vitro Assessment of Antioxidant, Anti‐Inflammatory and Immunomodulatory Properties of Melia azedarach Linn. Extract in Chicken Lymphocyte Model

open access: yesFlavour and Fragrance Journal, EarlyView.
Phytochemistry and biopotential of Melia azedarach Linn. ABSTRACT Melia azedarach Linn. (chinaberry), a medicinal plant native to tropical Asia, is a rich source of diverse bioactive compounds with reported pharmacological activities and promising therapeutic potential.
Priya Chand   +3 more
wiley   +1 more source

Sterols from some sponges

open access: yes, 1978
The sterol composition of four sponges was determined by a combination of gas chromatography and mass spectrometry. Cliona viridis and Chondrosia reniformis contained mainly C27-C29 Δ5 mono- and di-unsaturated sterols.
ZOLLO, FRANCO, D. Sica
core  

The sterols of calcareous sponges (Calcarea, Porifera)

open access: yes, 2008
Sponges are sessile suspension-feeding organisms whose internal phylogenetic relationships are still the subject of intense debate. Sterols may have the potential to be used as independent markers to test phylogenetic hypotheses.
Hagernann, Andrea   +3 more
core   +1 more source

Impact of high temperature processing and heating duration on fatty acid composition and trans fatty acid formation in seven cold‐pressed and five refined vegetable oils

open access: yesFood Biomacromolecules, EarlyView.
Abstract Edible oils are essential dietary constituents that contribute as energy source, fatty acids and medium for fat‐soluble vitamins. High temperature during frying induces changes in the fatty acid profile of edible oils. The primary aim of this study is to investigate the influence of high temperature (230 ± 5°C) and duration of heating (0, 1, 2
Nandipeta Venkatesh   +2 more
wiley   +1 more source

Phytochemical studies of the herb, Tragopogon orientalis L. (Asteraceae). 1. The components of a petroleum ether extract

open access: yesActa Societatis Botanicorum Poloniae, 2014
Hydrocarbons, aliphatic alcohols, triterpenes and sterols were shown to occur in the herb, Tragopogon orientalis L. The following were obtained in crystalline form: n-triacontan, hexacosanol, (β-amyrin and lupeol.
Tadeusz Krzaczek, Helena D. Smolarz
doaj   +1 more source

Sonication‐assisted green extraction and functional characterization of dietary fiber from a novel PD2LV65 oat (Avena sativa L.) cultivar

open access: yesFood Biomacromolecules, EarlyView.
Abstract This study explored the oat cultivar PD2LV65 as a native source of dietary fiber (DF) and optimized its extraction using response surface methodology. A three‐factor three‐level design assessed the impact of time (10, 20, and 30 min), temperature (20°C, 30°C, and 40°C), and amplitude (60%, 70%, and 80%) on the extraction efficacy.
Muhammad Suhail Ibrahim   +7 more
wiley   +1 more source

Ecological Significance of Sterols in Aquatic Food Webs

open access: yes, 2009
Sterols are indispensable for a multitude of physiological processes in all eukaryotic organisms. In most eukaryotes, sterols are synthesized de novo from low molecular weight precursors.
Dominik Martin-Creuzburg   +3 more
core   +1 more source

Physicochemical, Functional, and Health‐Promoting Properties of Processed Nettle (Urtica Dioica) Leaves: A Review

open access: yesFuture Postharvest and Food, EarlyView.
Stinging nettle (Urtica dioica L.) leaves are a nutrient‐dense source of proteins, dietary fiber, chlorophylls, carotenoids, and phenolic compounds. Processing technologies enable the production of powders and extracts for incorporation into bakery, beverage, dairy, and nutraceutical products; however, challenges remain regarding sensory quality ...
Mary Nkongho Tanyitiku   +2 more
wiley   +1 more source

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