Computer simulation of bottle brush polymers with flexible backbone: Good solvent versus Theta solvent conditions [PDF]
J. Chem. Phys. 135, 164903 (2011), 2011 By Molecular Dynamics simulation of a coarse-grained bead-spring type model for a cylindrical molecular brush with a backbone chain of $N_b$ effective monomers to which with grafting density $\sigma$ side chains with $N$ effective monomers are tethered, several characteristic length scales are studied for variable solvent quality.
arxiv +1 more source
Conformational isomerization dynamics in solvent violates both the Stokes-Einstein relation and Kramers' theory [PDF]
arXiv, 2023 Molecular isomerization kinetics in liquid solvents are determined by a complex interplay between the friction acting on a rotating dihedral due to interactions with the solvent, internal dissipation effects (also known as internal friction), the viscosity of the solvent, and the free energy profile over which a dihedral rotates.
arxiv
Extraction of bioactive polyphenols with high antioxidant activity from bilberry (Vaccinium myrtillus L.) processing waste [PDF]
, 2016 Bioactive polyphenols were extracted from the peel fraction of bilberry processing waste using aqueous ethanol as solvent. A response surface methodology was used to evaluate the effects of liquid-to-solid ratio (R), solvent composition (C), extraction ...
Fidaleo, Marcello +2 more
core +3 more sources
Increasing in the Extraction Yield of Environmentally Friendly Antifouling Agent from Pseudomonas Aeruginosa MUT3 by Response Surface Methodology (RSM) [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2019 In the present study, the solvent-solvent extraction of phenazine 1-carboxylic acid (PCA) as an environmentally friendly antifouling agent from pseudomonas aeruginosa MUT3 culture was investigated.
Hamid Mosmeri +3 more
doaj
EFFECT OF SOLVENT AND EXTRACTION TIME VARIATION ON THE COFFEE OIL EXTRACTION RESULTS
Chimica Didactica Acta, 2023 The traditional coffee with the greatest taste is called arabica. One of the ingredients made from coffee beans and used for air freshener is coffee oil.
Marisa Fitria +4 more
doaj +1 more source
How hydrophobic drying forces impact the kinetics of molecular recognition [PDF]
Proc. Natl. Acad. Sci. USA 110, 13277 (2013), 2013 A model of protein-ligand binding kinetics in which slow solvent dynamics results from hydrophobic drying transitions is investigated. Molecular dynamics simulations show that solvent in the receptor pocket can fluctuate between wet and dry states with lifetimes in each state that are long enough for the extraction of a separable potential of mean ...
arxiv +1 more source
Foods, 2023 Obtaining phytochemical-rich plant extracts from natural products where the active ingredients are present in comparatively low levels in the tissue matrix is the critical initial step of any chemical analysis or bioactivity testing.
Rasangani Sabaragamuwa, Conrad O. Perera
doaj +1 more source
Review of microscale dynamics of dilution-induced asphaltene precipitation under controlled mixing conditions [PDF]
arXiv, 2022 As the most complex and heaviest component in bitumen, asphaltene precipitation induced by solvent dilution is important in oil sands extraction to remove solids and water from bitumen froth through dilution by paraffinic solvents. This review will compare asphaltene precipitation to dilution-induced solvent shifting in aqueous systems via the ouzo ...
arxiv
Screening the effect of four ultrasound-assisted extraction parameters on hesperidin and phenolic acid content of aqueous citrus pomace extracts [PDF]
, 2018 Polyphenols of citrus by-products, due to their antioxidant and antimicrobial activities, could be valorized by pharmaceutical and food industries, adding a value to the citrus processing companies.
Bowyer, Michael C. +6 more
core +1 more source
Solid-liquid extraction of phenolics from red grape skins
Acta Chimica Slovenica, 2016 For the characterization of grape cultivars, the profile and content of flavonoids are important because these compounds impact on grape and wine quality. A new extraction method for the recovery of flavonoids from grape skins was developed.
Ivana Tomaz +5 more
doaj +1 more source