The present study describes a novel and scalable process for preparation of omega-3 and omega-6 fatty acids in solid form. The process involves multiple steps consisting of combining the oil with a metal base in alcohol to form a solution, followed by addition of reaction mixture to acetonitrile (anti-solvent) to form a slurry and further separating the solid through filtration. This process results in formation of a flowable solid with yield of 44-76% depending on the procedure employed. The fatty acid profile of the calcium and magnesium salts was stable after one year of storage in ambient conditions. The type of solvent and anti-solvent employed in such process has tremendous effect on the resulting solid texture, which could range from complete gum to a workable, filterable solid. It was also demonstrated that increasing the concentration of base in alcohol reduces the amount of residual acetonitrile in the solid.
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http://dx.doi.org/10.1016/j.foodchem.2017.02.055 | DOI Listing |
J Am Chem Soc
January 2025
Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China.
Polymer nanoparticles with low curvature, especially two-dimensional (2D) soft materials, are rich in functions and outstanding properties and have received extensive attention. Crystallization-driven self-assembly (CDSA) of linear semicrystalline block copolymers is currently a common method of constructing 2D platelets of uniform size. Although accompanied by high controllability, this CDSA method usually and inevitably requires a longer aging time and lower assembly concentration, limiting the large-scale preparation of nanoaggregates.
View Article and Find Full Text PDFDermatol Ther (Heidelb)
January 2025
Department of Dermatology, University Hospital Heidelberg, Im Neuenheimer Feld 440, 69120, Heidelberg, Germany.
Pemphigus vulgaris is a severe and often therapy-resistant bullous autoimmune disease. Standard therapy with steroids often administered together with another immunosuppressant does not respond in all patients or may not be a good therapeutic option in patients with severe underlying diseases. Intravenous immunoglobulins (IVIgs) represent a treatment alternative, often showing a rapid response which allows one to reduce concomitant immunosuppression.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Background: Consuming prebiotics demonstrated therapeutic potential against obesity, as illustrated by our previous study on xylooligosaccharide (XOS), revealing that XOS reduced adiposity, diminished systemic inflammation, and restored cognitive function in obese insulin-resistant rats through the gut-brain axis. Fresh bananas at various ripening stages are being transformed into snacks, indicating potential as prebiotic-based treats enriched with fructooligosaccharide and inulin. Despite those findings, there remains a notable gap in the literature concerning the impact of these prebiotic-based snacks on brain inflammation, reactive oxygen species (ROS) production, and cognitive function in high-fat diet (HFD)-induced obese rats.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Centre for Brain Research, Indian Institute of Science, Bengaluru, Karnataka, India.
Background: Vascular Dementia (VaD) is the second most prevalent cause of dementia, arising from the blockage of blood vessels in the brain. One event responsible for the blockage or narrowing of small blood vessels is transient ischemic attack (TIA), and these changes resolve within 24 hours in humans. The molecular mechanism underlying these changes in recovery in small vessels still needs to be investigated.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Icahn School of Medicine at Mount Sinai Medical Center, New York, NY, USA.
Background: Presenilin1 (PS1)/γ-secretase cleaves within the transmembrane domain of numerous receptor substrates. Mutations in PS1 have implications on the catalytic subunit of γ-secretase decreasing its activity and becoming a potential causative factor for Familial Alzheimer's Disease (FAD). This work studies the role of PS1/γ-secretase on the processing, angiogenic signaling, and functions of VEGFR2 and the effects of PS1 FAD mutants on the γ-secretase-mediated epsilon cleavage of VEGFR2.
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